常光 List of Products and Services

Graphene is attracting attention as a "dream material" due to its outstanding conductivity, strength, and flexibility. Utilizing the dispersion technology of our ultra-high-pressure homogenizer NAGS, we have developed "J-GRAPHENE" using a unique patented method. It features fewer than five layers and low defects, distinguishing it from the graphene currently in widespread use. It combines excellent conductivity with mechanical strength, and its performance is expected to be applied in a wide range of fields, including batteries, electronic components, paints, and inks.

• Secondary Cells/Batteries
• Lithium-ion battery

The practical application of CNTs is advancing in the latest battery and electronic device fields. It is difficult to achieve precise dispersion while maintaining fiber length with bead mills and ultrasonic homogenizers. From the perspective of utility and scale-up, the only option for CNT dispersion is the ultra-high-pressure homogenizer. 《Do you have any of the following issues?》 - Want to control the dispersion state suitable for the application - Want to loosen without cutting as much as possible - Want to consider a device that is less likely to clog and easy to use - Want to conduct research and development that can be directly linked to future mass processing The NAGS20 switchable pressurized tank system solves these problems. ◆ Achieves a suitable dispersion state with minimal damage thanks to the uniquely designed H-type nozzle ◆ Large diameter nozzle reduces the likelihood of clogging ◆ Capable of processing high-viscosity CNT paste (dispersion liquid) with increased concentration ◆ No need for sample replacement for each pass or tank switching ◆ Continuous processing with just the operation of a switch lever allows for efficient prototype work ◆ Easy scale-up as it comes standard with the same H-type nozzle as medium and large machines Please try it out with contract testing first. * For more details, please refer to the PDF materials or feel free to contact us.

• Crusher

In recent years, CNTs have rapidly expanded their applications into various fields, including secondary batteries, semiconductors, and the enhancement of resin materials through mixing. On the other hand, CNTs are one of the difficult-to-disperse materials among high-performance materials. Using our years of experience, Joko will assist you in discovering the optimal conditions for generating dispersions tailored to your needs. 【Please feel free to contact us with the following concerns】 ■ CNT concentration → We will assist you in examining higher concentrations with an optimal equipment configuration for high viscosity. ■ Solvent types → We can conduct examinations with various solvents. Examples include water, NMP, IPA, ethyl acetate, and MEK. ■ Dispersant types → We can consult based on the compatibility with the type of CNT and solvent. (We have a small amount of various dispersants available, so preliminary discussions are also welcome.) ■ Pre-dispersion treatment → We can assist you with pre-dispersion before the main dispersion using NAGS, based on consultation. ■ Processing pressure and number of passes → We will work together to consider processing pressure and number of passes to achieve a dispersion state that minimizes damage to CNT fiber length, from a state of partial dispersion to complete dispersion. Please try our contract testing first.

• Homogenizer

The wet-type nano disperser ultra-high pressure homogenizer "NAGS Series" is a highly versatile device capable of processing a variety of materials, including ceramics, metals, high aspect ratio materials such as CNTs and CNFs, and emulsions. All models in the series feature a uniquely designed H-type nozzle by Soko. By combining "shear force," "cavitation," and "front collision force," it demonstrates strong dispersion power while minimizing material damage. Additionally, we offer contract testing services to assist in the development of high-performance materials. 【Features】 ■ Medium and large machines are fully customizable (can accommodate explosion-proof specifications) ■ Unified all-purpose H-type nozzle from small to large machines, making scale-up easy ■ Equipped with a large-diameter nozzle that is less prone to clogging ■ Compatible with high-viscosity materials *For detailed product information, please download the materials.

• others

The NAGS series of ultra-high pressure homogenizers for wet-type nano-dispersion machines by Chokko is a highly versatile device capable of processing a wide range of materials, including ceramics, metals, high aspect ratio materials such as CNTs and CNFs, and emulsions. We also offer contract testing services and can assist your company in the development of high-performance materials. Please feel free to consult with us. 【Desktop Experimental Machine NAGS20 Features】 ■ Capable of handling a minimum of 8ml ■ Can accommodate high concentration and high viscosity samples ■ Electric desktop model achieving high-pressure processing at 200MPa ■ Extremely low contamination suitable for high-purity samples ■ Compatible with organic solvents (Most organic solvents, including acetone, toluene, and NMP, can be used) The "NAGS100" and "NAGS1000" are also equipped with our uniquely developed H-type nozzle, making scale-up from the "NAGS20" easy. Additionally, we accept requests for "CNT dispersion" and "contract testing and manufacturing." Detailed information is available in PDF and video format through the related links. *For more details, please refer to the PDF materials or feel free to contact us.

• Homogenizer

The NAGS series of high-pressure homogenizers for wet-type nano-dispersion by Chang Guang is a highly versatile device capable of processing a wide range of materials, including ceramics, metals, high aspect ratio materials such as CNTs and CNFs, and emulsions. We also offer contract testing services and can assist your company in the development of high-performance materials. Please feel free to consult with us. 【Desktop Experimental Device NAGS20 Features】 ■ Can handle a minimum of 8ml ■ Capable of processing high concentration and high viscosity samples ■ Electric desktop model achieving high-pressure treatment of 200MPa ■ Extremely low contamination suitable for high-purity samples ■ Compatible with organic solvents (Most organic solvents such as acetone, toluene, and NMP can be used) The "NAGS100" and "NAGS1000" are also equipped with our uniquely developed H-type nozzle, making scale-up from "NAGS20" easy. Additionally, we accept requests for "CNT dispersion" and "contract testing and manufacturing." Detailed information is available in PDF and video formats via the related links. *For more details, please refer to the PDF materials or feel free to contact us.

• Homogenizer

The ultra-high pressure homogenizer NAGS series is a highly versatile device capable of processing a wide variety of materials, including ceramics, metals, high aspect ratio materials such as CNTs and CNFs, and emulsions. We also offer contract testing services and can assist your company in the development of high-performance materials. Please feel free to consult with us! 【NAGS20 Features】 ■ Can handle a minimum of 8ml ■ Capable of processing high concentration and high viscosity samples ■ Electric tabletop model achieving high-pressure processing of 200MPa ■ Extremely low contamination suitable for high purity samples ■ Compatible with organic solvents (Most organic solvents such as acetone, toluene, and NMP can be used) The "NAGS100" and "NAGS1000" are also equipped with our uniquely developed H-type nozzle, making it easy to scale up from the "NAGS20." *For more details, please refer to the PDF document or feel free to contact us.

• Homogenizer

This document is a collection of case studies on processing conducted by Joko Co., Ltd. "Disaggregation" is a treatment that loosens and micro-sizes aggregates of primary particles. For example, according to manufacturer data, materials with a primary particle size of 30 nm are aggregated to a state of 5 μm, which is then loosened and micro-sized. The characteristic front collision force of the Joko nozzle powerfully micro-sizes the material. Additionally, "crushing" is a treatment that literally crushes primary particles to achieve micro-sizing. This process demonstrates the greatest advantage of media-free processing, which is minimal material damage. [Published Cases] ■ Zinc oxide "Disaggregation" ■ Barium titanate "Disaggregation" ■ Nickel hydroxide "Crushing" ■ Titanium diboride "Crushing" *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services

CNT has finally entered the practical application stage. Our company has received requests from a wide range of customers, including actual CNT users, CNT manufacturers, CNT dispersion liquid manufacturers, as well as dispersant manufacturers and material trading companies. Our ultra-high-pressure homogenizer, the "NAGS series," achieves precise dispersion while maintaining CNT length, which is difficult to achieve with bead mills or ultrasonic methods. Additionally, the "NAGS series" features the same type of dispersion unit across all devices, making it easy to scale up from small-scale development phases to large-scale manufacturing. If you have any of the following concerns, please feel free to contact us: - I want to control the dispersion state suitable for my application. - I want to loosen the material as much as possible without cutting it. - I want to conduct research and development that can directly lead to future large-scale processing. - I would like to consider a highly convenient device that is less prone to clogging. For more details, please refer to the PDF document or feel free to contact us.

• Crusher

This document introduces case studies that address concerns related to CNT dispersion. Do you have any issues such as: "I want to control the dispersion state according to the application," "I want to break it apart as little as possible," "My equipment often gets clogged," etc.? We will solve your concerns regarding CNT (carbon nanotube) dispersion with our solutions! *For more details, please refer to the PDF document or feel free to contact us.

• Crusher

This document introduces processing examples related to nanomicroization involved in the NAGS series. Nanomicroization is a key technology for miniaturizing and enhancing the performance of electronic devices such as batteries and MLCCs (multi-layer ceramic capacitors) through the nanomicroization of constituent materials. Additionally, there is a demand for uniform particle processing that does not contain impurities. New processing examples from the industrial sector are also included. [Contents] ■ What is nanomicroization ■ New processing examples in the industrial sector *For more details, please refer to the PDF document or feel free to contact us.

• Crusher

This document is a collection of case studies showcasing the use of NAGS in research institutions. It includes examples such as "Graphene Manufacturing Research at Italy's IIT" and "High-Performance Research on Pt Catalysts for Fuel Cells at Tokai University." Please take a moment to read it. [Contents] ■ NAGS Use Case in Research Institution (1) ■ NAGS Use Case in Research Institution (2) ■ NAGS Use Case in Research Institution (3) ■ NAGS Use Case in Research Institution (4) *For more details, please refer to the PDF document or feel free to contact us.

• Crusher

This document explains the features of the "NAGS Series" and the differences compared to bead mills. It includes "Features of the Joko NAGS Series" and "Organization of Features Compared to Bead Mills." Please take a moment to read it. [Contents] ■ Features of the Joko NAGS Series ■ Organization of Features Compared to Bead Mills *For more details, please refer to the PDF document or feel free to contact us!

• Crusher

This document explains the mechanism of the "NAGS series." The general terms are "ultra-high pressure homogenizer" and "wet jet mill." It is a device that injects slurry materials at ultra-high pressure (up to 250 MPa) through a diamond processing nozzle to nano-size and nano-disperse various materials. Please take a moment to read it. [Contents] ■ What is Joko's nano-sizing device (NAGS series)? ■ Joko's unique design philosophy and H-type nozzle (NJP unit) *For more details, please refer to the PDF document or feel free to contact us.

• Crusher

The "NAGS Series" is a wet-type ultra-high pressure homogenizer that supports the development of high-performance materials for our customers. The "NAGS20" is equipped with our uniquely developed H-type nozzle, which allows samples pressurized by a high-pressure pump to pass through the H-type nozzle, efficiently achieving uniform dispersion, emulsification, and disintegration of fine particles. It is also capable of handling high-concentration (below 60%) and high-viscosity (below 100,000 cP) samples, making it suitable for processing small amounts of samples. It is an electric tabletop model that achieves high-pressure processing of 200 MPa. The "NAGS100" and "NAGS1000" are also equipped with our uniquely developed H-type nozzle, making it easy to scale up from the "NAGS20." [NAGS20 Features] - Capable of handling a minimum of 8 ml - Suitable for high-concentration and high-viscosity samples - Achieves high-pressure processing of 200 MPa in an electric tabletop model - Extremely low contamination suitable for high-purity samples - Compatible with organic solvents (most organic solvents such as acetone, toluene, and NMP can be used) *For more details, please refer to the PDF document or feel free to contact us.

• Homogenizer

Our company offers contract testing services at our lab in Takatsu Ward, Kawasaki City. With our high technical capabilities cultivated through numerous processing achievements, we take on the challenges of difficult micronization and nano-dispersion to assist in solving our customers' issues. Additionally, we can accommodate the shipment of samples only, as well as experiments with on-site attendance. Please feel free to utilize our contract testing services! 【Features】 ■ High-quality micronization processing is possible from prototype to mass production without investing in equipment and personnel. ■ We perform the desired nano-processing for our customers with the technical skills honed through numerous contract tests. ■ On-site attendance is possible, and we also conduct before/after particle size distribution measurements concurrently. *For more details, please refer to the PDF materials or feel free to contact us.

• Other services

The Choko wet-type nano-disperser ultra-high pressure homogenizer NAGS series is a highly versatile device capable of processing a wide variety of materials, including ceramics, metals, high aspect ratio materials such as CNTs and CNFs, and emulsions. **Features of the benchtop experimental machine NAGS20:** - Exhibits damage-free and strong dispersion power with a uniquely developed H-type nozzle. - Capable of handling a minimum of 20ml. - Suitable for high concentration and high viscosity samples. - Achieves high-pressure processing of up to 200MPa in a compact electric benchtop design. - Provides contamination-free processing suitable for high-purity samples. - Compatible with organic solvents (most organic solvents, including acetone, toluene, and NMP, can be used). The pilot machine NAGS100, the medium-scale production machine NAGS200, and the large-scale production machine NAGS1000 are also equipped with the versatile H-type nozzle, making scale-up from the NAGS20 easy. Additionally, we offer contract testing services to assist your company's development of high-performance materials. Please feel free to consult with us. Detailed information is available in PDF and video formats via the related links. Do not hesitate to contact us.

• Fine grinding machine

Dispersing, emulsifying, and breaking down are performed at a high pressure of up to 250 MPa. Equipped with an H-type nozzle (for dispersing, emulsifying, and breaking down), the sample is pressurized by a high-pressure pump and passes through the H-type nozzle, allowing for efficient dispersion, emulsification, and breakdown of uniform fine particles. 【Features】 ○ Easy dispersion of nanoparticles ○ Minimal contamination ○ Difficult to reaggregate, stable for a long time ○ Surface condition of the sample remains unchanged ○ Can perform kneading *For details, please download the catalog from the link below.

• Mixer/agitator

We perform dispersion, emulsification, and disintegration under high pressure. Equipped with our uniquely developed H-type nozzle, the sample pressurized by a high-pressure pump passes through the H-type nozzle, allowing for efficient dispersion, emulsification, and disintegration of uniform fine particles.

• Mixer/agitator

A "slurry" mixed with powder, solvent, and a dispersant to prevent re-agglomeration is injected into the sample tank. A pressure of up to 250 MPa is applied to the material within the device, and the materials are made to collide head-on using our unique "H-type nozzle" to achieve dispersion. We refer to passing the sample through the device once as a "pass." By repeating this "pass" multiple times, the materials are dispersed to sizes ranging from "microns to several tens of nanometers," and in a "uniform" manner.

• Powder Molding Machine

The "H-type nozzle" realizes the "three types of dispersion" unique to Joko! Within the "ultra-high pressure homogenizer" system, this part is made of "diamond." The material pushed through by a high-pressure pump passes through this specially crafted nozzle. And then, 1. Generation of jet flow Shearing occurs within the unit, resulting in a liquid phase jet flow. 2. Collision of materials When the sheared materials merge, they collide head-on. 3. Joko's unique vortex jet flow The vortex jet flow further enhances the effect. During depressurization, cavitation occurs while dispersing, efficiently extracting the effects of dispersants and other additives.

• Powder Molding Machine

The material that is said to significantly expand in market size in the future is CNF. With Joko's ultra-high-pressure homogenizer, it is possible to directly generate CNF using only "pulp" and "water." It can also be applied to materials like "bamboo." The ultra-high pressure exerted by the triple-piston plunger dramatically changes the material properties. Of course, it is also compatible with high-viscosity CNF.

• Processing Contract

The utilization of the new material "graphene," which is strong and excels in conductivity and thermal dissipation, is gaining attention. However, there are still challenges regarding the production costs and mass production of single-phase graphene, making it difficult to widely deploy it as a material for manufacturing. In this context, research is being conducted to apply mechanical shear forces to inexpensive graphite bulk, efficiently peeling off layers to produce graphene. The Italian national research institute IIT (Istituto Italiano di Tecnologia) has focused on this manufacturing method early on and has adopted our ultra-high-pressure homogenizer (NAGS100) in the mechanical exfoliation process. Currently, multilayer graphene is being stably produced from graphite bulk and is being applied in various applications. In the future, mass production is being advanced, and inexpensive, high-quality graphene ink is expected to be sold worldwide.

• Secondary Cells/Batteries

Delivery to Chitose Institute of Science and Technology. (Photo provided by Chitose Institute of Science and Technology)

• Processing Contract

It can also be applied to the micronization of new compounds from pharmaceutical companies. From research models to mass production machines, by performing "processing condition output," it becomes possible to achieve highly reproducible results.

• Chemicals

The performance of equipment for powder processing (dispersion, emulsification, grinding) cannot be expressed in the catalog. The reason is that the processing method changes depending on the materials used and the intended purpose. So, what indicators should be used for selection? The best way is to look at actual processing examples. Carbon nanotubes are materials made of carbon graphene sheets arranged in single or multi-layer coaxial tubes, possessing strength several times that of steel, excellent heat and chemical resistance, and high electrical and thermal conductivity, making them a dream material. However, their poor dispersibility poses challenges when applied to various uses. In contrast, the ultra-high pressure homogenizer from Joko can efficiently disperse carbon nanotubes in a short time without damaging them. For more details, please download the catalog or contact us.

• others

The performance of powder processing equipment (dispersion, emulsification, grinding) cannot be expressed in the catalog. The reason is that the processing method changes depending on the materials used and the purpose. So, what indicators should be used for selection? The best way is to look at actual processing examples. Tricalcium phosphate is actively used as a material for artificial bones and teeth, so it is necessary to create a material with high strength. An ultra-high-pressure homogenizer from Soko is effective for making particles finer. [Contents of Powder Processing Data Materials] - Comparison photos before and after processing - Particle size distribution data *Please download and view the data materials for processing examples from the link below.

• others

The performance of powder processing equipment (dispersion, emulsification, grinding) cannot be expressed in the catalog. The reason is that the processing method changes depending on the materials used and the intended purpose. So, what indicators should be used for selection? The best way is to look at actual processing examples. Alumina has a variety of properties, including chemical stability, high melting point, high mechanical strength, high hardness, and high electrical insulation resistance. Therefore, it is used in a wide range of fields, such as ceramic materials for pottery, mechanical parts, electronic components, and grinding and polishing materials. ● For more details, please download the catalog or contact us.

• others

The performance of powder processing equipment (dispersion, emulsification, grinding) cannot be expressed in the catalog. The reason is that the processing method changes depending on the materials used and the intended purpose. So, what indicators should be used for selection? The best way is to look at actual processing examples. In dispersion, for materials used in electronic components, a type of ceramic is required for miniaturization in small multilayer ceramic capacitors, where finer and more uniform particles are sought. ● For more details, please download the catalog or contact us.

• others

The performance of equipment for powder processing (dispersion, emulsification, grinding) cannot be expressed in the catalog. The reason is that the processing methods change depending on the materials used and the intended purpose. So, what indicators should be used for selection? The best way is to look at actual processing examples. In our company, we create internal case studies to explain the technology of our equipment in an easy-to-understand manner for our customers. ● For more details, please download the catalog or contact us.

• others

The performance of powder processing equipment (dispersion, emulsification, grinding) cannot be expressed in catalogs. The reason is that the processing methods change depending on the materials used and the intended purpose. So, what indicators should be used for selection? The best approach is to look at actual processing examples. Zinc oxide is used in various applications such as pigments, pharmaceuticals, and cosmetics. In recent years, its properties as a semiconductor have attracted attention, and its application in transparent conductive film materials is anticipated. To enhance transparency, finer particles are required. 【Content of Powder Processing Data Materials】 - Comparison photos before and after processing - Particle size distribution data *Please download and view the data materials of processing examples from the link below.

• others

Delivery to Tokai University. "CNTs, which have a large surface area and high electrical conductivity, are expected to be applied as supports. In our laboratory, we achieve high performance of Pt catalysts and high output of fuel cells by performing a pretreatment that uniformly disperses CNTs in water using an ultra-high-pressure homogenizer."

• Lithium-ion battery