High Precision and Difficult Processing Technology Exhibition 2023

Joining precision parts without melting the base material.

This time, I would like to introduce examples of joining using silver solder. There are various methods for joining metals, such as gas welding, arc welding, laser welding, and electron beam welding, all of which involve melting the base material to join them. On the other hand, in the case of brazing, a filler material with a lower melting point than the base material is melted to join the parts, allowing for the joining of complex shapes or precision parts without melting the base material. Additionally, with metallization treatment, it is also possible to join metals and ceramics. The common method for melting the filler material is using a gas burner, but high-frequency induction heating or heating furnaces may also be used, and the optimal method is chosen based on the size, shape, and quantity of the parts to be joined. I am looking forward to trying various materials in the future. Furthermore, I can offer proposals that include not only joining but also shape processing, so please feel free to consult with me. ■ Cross-sectional images Cu + Cu (Copper + Copper) W + Cu (Tungsten + Copper) Mo + Cu (Molybdenum + Copper) Mo + Mo (Molybdenum + Molybdenum)

• Analytical Equipment and Devices

"I want conductive alumina ceramic!" Background and an overview of the development will be introduced.

This case study collection includes solutions to problems related to tungsten and high melting point metals. We introduce numerous cases such as "I want an alternative to thorium tungsten," "I want tungsten that is easy to process," and "I want conductive alumina ceramic." We also provide background information and an overview of the development for each case. Please take a moment to read through it. [Contents (excerpt)] ■ I want an alternative to thorium tungsten ■ I want tungsten that is easy to process ■ I want conductive alumina ceramic ■ I want tungsten that can discharge even at low energy ■ Ultra-high temperature! Development of a 2800°C vacuum furnace *For more details, please refer to the PDF document or feel free to contact us.

• Technical and Reference Books

We have ultra-high temperature heat treatment furnaces! We will address your challenges with our years of heat treatment technology. Leave the coating and brazing of metals and ceramics to us!

We would like to introduce some coating examples. This one is tungsten coated with alumina (Al2O3). To enhance thermal efficiency, we have further coated the alumina coating with (alumina + tungsten). This is a component inside the cathode used in electric propulsion systems for small satellites, but it seems to be used in other applications as well. Our company has a well-equipped heat treatment furnace, and in addition to coating, we respond to various requests such as brazing and material development. We also accept commissioned processing from research and development, so if you have any concerns, please feel free to consult us first. ◆ We will propose solutions utilizing our heat treatment furnace tailored to your needs: - Coating - Brazing - Functional material development - Sintering - Residual stress removal - Crystal grain size control - Oxide removal - Contamination removal - Degassing - De-greasing ...and more.

• Contract manufacturing

Metals and ceramics: We will propose the optimal heat treatment tailored to your needs!

Generally, high-temperature heat treatment takes several hours, which can be costly and time-consuming. Gakuseki Electric has been conducting heat treatment of high melting point metals and ceramics, including tungsten. In particular, to quickly and efficiently perform heat treatment for small, low-volume, and diverse products, we have repeatedly conducted various experiments and successfully developed a high-speed high-temperature vacuum furnace capable of reaching approximately 2700°C. With this equipment, ■2500°C for 30 minutes ⇒ The entire process from the start of heating to cooling down is completed in about 2 hours! We have achieved efficiency and cost reduction. Additionally, substances that cannot be completely removed in general furnaces can also be heated and removed. ーーー We also accommodate various high-temperature heat treatments, including multi-atmosphere sintering furnaces and forming gas flushing furnaces. Through these high-temperature heat treatments, it is possible to ultimately prevent the residue and contamination of impurities. With decades of accumulated experience and know-how in heat treatment, please leave the heat treatment of metals to Gakuseki Electric. ーーー

• Processing Contract

From prototyping to mass production of difficult-to-machine materials such as tungsten, molybdenum, and tantalum.

We perform precision machining of difficult-to-cut and difficult-to-process materials such as tungsten, molybdenum, and tantalum. For mass production, we automate the process using feeding machines, while for prototypes ranging from one to a few pieces, we respond quickly with manual operations. In particular, precision machining of small products with tolerances in the micron or millimeter range is our specialty. ◆ Precision machining using NC lathes and other machine tools We utilize NC lathes, MC multi-tasking machines, milling machines, centerless grinders, automatic precision cutting machines, wire-cut and electrical discharge machines, automatic surface grinders, injection molding machines, extrusion molding machines, and presses. ◆ In-house automatic assembly and processing machines We have a wide range of in-house developed fully automatic machines, including fully automatic hot press machines, automatic heater coil assembly machines, and fully automatic electrode assembly machines. Gakuseki Electric often takes on the manufacturing of products that other companies are reluctant or unable to produce. If there are no machines available in the market for manufacturing, we design and build our own processing machines. ◆ Processing - Cutting - Machining - Milling - Cutting - Tapering - Drilling *Sizes, precision, and handled materials are detailed in the "Basic Information" section.

• Contract manufacturing

Active in medical X-rays, non-destructive testing equipment, mass spectrometry devices, and more.

■Background of Development For many years, we have been commercializing various shapes of filaments using tungsten. However, in recent years, with advancements in science and technology, customer needs have diversified, making it increasingly difficult to meet their demands with tungsten alone. ■Overview of Development With the aim of enhancing the functionality of filaments, examples of customer requests included "insulation," "corrosion resistance," and "low work function." In response, we have incorporated the following into our filaments: ● Aluminum oxide (alumina) for [insulation] (Coating alumina onto tungsten coils) ● Yttrium oxide (yttria) to provide [corrosion resistance] and [low work function], successfully enhancing functionality. (Coating yttria (Y203) onto the filaments) ■Details of Development In developing the coating technology, we adopted a certain method. While it is a common approach, it is based on [our unique equipment and manufacturing process]. We optimize factors such as particle size, mixing ratio, and film thickness through experimental investigation, but this is not easy. Ultimately, the number of experiments has reached into the thousands, and we continue to work on quality improvement.

• Processing Contract

Active in medical X-rays, non-destructive testing equipment, mass spectrometers, and more.

■Development of Molybdenum-Ruthenium Filler Metal This filler metal is used for joining (brazing) high melting point metals due to its high melting point, but it is not commercially available, so it was necessary to procure the materials independently. Using the developed filler metal, we attempted brazing between tungsten pieces. *The left side of the photo shows porous tungsten.* Photo 1: Observed by a CCD camera. This is a failed example where a large gap occurred at the joint. In reality, it was quite difficult to achieve a good result. Photo 2: Successful example! (The joint is in the center of the photo.) Photo 3: Reflection electron image by SEM. It can be seen that the joint is made without gaps due to the filler metal. Photo 4: Element mapping. The joint area has become clear. Perhaps due to its porous nature, the filler metal seems to have diffused on the left side. ◆Our company possesses a super high-temperature heat treatment furnace capable of up to [2700°C]. We have numerous furnaces that can accommodate various atmospheres and offer solutions utilizing heat treatment furnaces tailored to your needs. - Coating - Brazing - Functional material development - Sintering - Residual stress removal - Grain size control - Oxide removal - Contamination removal - Degassing - De-greasing ...and more.

• Processing Contract

Utilizing the properties of Ni-Ti alloy, along with a safe coating that can be used within the body.

Now, let me introduce the "Ni-Ti Coating Coil." It may sound a bit confusing as I write this, but here are the processes involved: (1) Coiling of Ni-Ti (high elasticity, shape memory alloy) (2) Shape memory treatment (500°C) (3) PTFE coating The Ni-Ti alloy is known for its superelasticity, and we plan to develop products that leverage this characteristic. By applying a PTFE coating, the design is safe for insertion into the body. Additionally, PTFE allows for color selection based on purpose (please consult for color variations). As a side note, the current sample is intended for orthodontic purposes, and there was a request for a slightly yellowish white instead of a bright white, as the latter would be too conspicuous (though it would be a perfect match for Coach Shinjo). This also depends on user preferences, but in Western countries, due to high medical costs, there is a perception that "orthodontics = wealth," leading to opinions that some may want it to stand out more.

• Contract manufacturing

Zaltrius Japan will be exhibiting at the 98th Annual Meeting of the Japanese Society for Tissue Culture. ◼ Date: August 27 (Thursday) - 28 (Friday), 2026 ◼ Location: 2-8-35 Tai-machi, Nagaoka City, Niigata Prefecture, Hotel New Otani Nagaoka, Venue for the 98th Annual Meeting of the Japanese Society for Tissue Culture ◼ Booth: No. 11 ◼ Exhibited Products: Polyplus High-Efficiency Transfection Reagents NexaGel 3D Cell Culture Matrix Research Growth Factors and Cytokines Basic Cell Culture Media and Reagents Picus 2 Electronic Pipette We have a selection of products recommended for those considering improving research reproducibility and establishing 3D culture environments. Please come and see the actual products and applications at the venue. We look forward to your visit!

We are pleased to announce a co-hosted seminar with Live Consulting Co., Ltd. "Practical Seminar on Microsoft Copilot for Executives and Managers in the Manufacturing Industry" "The new AI tools are no longer needed." This seminar will allow you to experience Microsoft Copilot, which can be used directly within your usual Word, Excel, and Teams, through a demonstration of the actual operation screen. The answers are already within your existing Microsoft 365. You can use AI directly in Word, Excel, and Teams without the need for additional tool selection or new investments, all within the security framework of M365. We will explain the basics to practical applications of Copilot in 90 minutes, specifically for executives and managers in the manufacturing industry. We sincerely look forward to your participation. [Recommended for the following individuals] - Executives and managers in the manufacturing industry who have not yet mastered generative AI/Copilot - Those considering AI implementation but are stalled due to tool selection, security, or promotion systems - Individuals who prefer to see the "actual screen" rather than just "reading" about it - Those who are unable to use ChatGPT in their company due to security concerns.

We will hold a webinar focused on analytical challenges in the research, development, and quality control of biopharmaceuticals, particularly antibody-drug conjugates (ADCs). We are pleased to invite Professor Yuji Ito from Kagoshima University, who will give a lecture on the latest analytical strategies and practical insights in biopharmaceutical research, including ADCs. Target Audience: - Researchers, developers, and CMC personnel from pharmaceutical companies, CDMOs, and CROs - Those considering advanced analytical methods for ADCs and antibody drugs - Individuals facing challenges in improving separation performance, reproducibility, or analytical efficiency - Those considering the implementation of MAM and workflow development Lecture 1 [Special Lecture]: Next-Generation Drug Discovery Using DDS with Tissue-Translocating Antibodies - AccumBody Platform and Antibody Conjugate Technology - Professor Yuji Ito, Graduate School of Science and Engineering, Kagoshima University Lecture 2: Latest LC Column Technology to Solve Challenges in ADC and Antibody Analysis Lecture 3: MAM Practice - An Integrated Workflow from Research and Development to Quality Evaluation * This webinar is a restructured version of the content from the on-site seminar held in July 2026.

Fujikogyo Co., Ltd. will exhibit at the "5th Smart Factory EXPO Autumn" held at Makuhari Messe from September 9 (Wednesday) to September 11 (Friday), 2026. On the day, we will showcase the latest FA and robotics products that achieve automation, efficiency, and labor-saving in the field. [Main Exhibited Products] ◇ Collaborative Robot Palletizing System (Elite Robot Co.) A compact design that is mobile and integrated. It enables seamless loading and easy operation via a tablet. ◇ Autonomous Mobile Robot for Pallet Transport (FEXA Co.) A small and agile AMR. It supports fully automated transportation through shutter and elevator coordination and the use of load sensors. ◇ Automatic Sealing Machine for Packing Tape (EXTEND Co.) Compliant with decarbonization and environmental considerations. It can be used with only power, without the need for air, allowing for use without constraints of location or utilities. We will propose solutions that help solve your challenges. Please visit our booth (Hall 2 / A13-36). *Advance registration (free) is required for attendance.

The organization will hold a seminar titled "EMC Performance of In-Vehicle Devices as Considered by Automobile Manufacturers" on September 16, 2026 (Wednesday), featuring lecturers from Toyota Motor Corporation, Hino Motors, Ltd., and Daihatsu Motor Co., Ltd. In addition to presentations from the three companies, a leading expert on in-vehicle device EMC from our organization will introduce the latest topics. Furthermore, after the seminar, a technical exchange meeting will be held, allowing participants, lecturers, and our organization's technical staff to exchange information. In recent years, the acceleration of autonomous driving, connectivity, and electrification technologies has been aimed at achieving carbon neutrality and evolving mobility. Within this context, it is anticipated that the demands for EMC in electric vehicles (xEV) and fuel cell vehicles (FCV), particularly regarding the electrification of powertrains and EV components, will be stronger than ever. In this seminar, we will invite EMC experts from automobile manufacturers to explain the latest trends in standards regarding the "EMC performance required for in-vehicle devices" to suppliers. We encourage you to take advantage of this opportunity.