東條製作所 List of Products and Services

If waterproofing is necessary, if you want to protect the circuit board from vibrations, or if you are concerned about the reduced lifespan of the mounted circuit board due to dirt, resin potting is recommended. Among them, black potting has a high hardness of 76, but it is a processing method that contributes to waterproofing (equivalent to IP67), dustproofing, and explosion-proofing without putting stress on the circuit board. 【Features of Black Potting】 ■ High hardness of 76, but does not stress the circuit board ■ Excellent waterproofing (equivalent to IP67), dustproofing, explosion-proofing, and earthquake resistance ■ No limits on the work size for resin potting Regardless of the size of the circuit board, feel free to consult us, and prototype support is also possible. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

Resin potting is a processing technology that allows for the injection of urethane resin into cases, effectively shutting out dust, dirt, and water. Since the circuit board is fixed in place, it can be protected from vibrations. This contributes to the waterproofing, long life, and earthquake resistance of the mounted circuit board. 【Advantages of Resin Potting】 - No worries about dust or dirt adhering to the circuit board - Excellent waterproofing and moisture resistance - Strong against vibrations and impacts as the case can be filled and fixed with resin - Can extend the component replacement cycle, proving effective for products aimed at overseas markets - Prototyping is possible We will carry out work according to your requirements, so please feel free to contact us. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

If the printed circuit board is used as is, it often leads to malfunctioning of the board, damage to components or the board itself, and a reduction in the lifespan of the board. Therefore, for printed circuit boards in harsh environments, measures such as waterproofing, moisture-proofing, vibration-proofing, dust-proofing, and explosion-proofing become necessary. As a countermeasure, resin molding (resin potting) can be used to inject urethane resin into cases, which can shut out dust, dirt, water, and vibrations. Additionally, since the board is fixed in place, it can be protected from vibrations. *Consideration for implementation is possible even without a case. Furthermore, by coating the surface of the board, it is possible to protect the board from dust, dirt, and moisture. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

For vibration resistance and waterproofing measures for automotive substrates, black potting is recommended. The reason black potting is recommended for automotive substrates is that it has waterproof performance equivalent to IP67, making it completely suitable for humid environments. Additionally, with a hardness of 76A, it also addresses one of the main concerns for automotive substrates, which is vibration resistance. We often receive various requests for applications beyond automotive substrates, so please feel free to consult us if you have any inquiries. 【Features】 ■ Excellent waterproof performance ■ Suitable for vibration resistance ■ Black potting material that does not stand out when installed in vehicles ■ Recommended for products to be exported overseas where you do not want the mounted circuits or patterns to be visible *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

In the development phase of electronic products, speed and quality are crucial. Tojo Manufacturing is characterized by low defect rates and short delivery times achieved through thorough quality control in printed circuit board assembly. By continuously solving customer problems with a focus on printed circuit boards, we have gained recognition from various manufacturers, including publicly listed companies. We believe this is a testament to the skills and know-how we have diligently cultivated in printed circuit board assembly and prototyping. If you are facing challenges with printed circuit board assembly or prototyping, please consult Tojo Manufacturing. We will respond with agility and quality. 【Business Activities】 ■ Design and manufacturing of printed circuit boards and printed circuit board assembly ■ Waterproof, dustproof, and vibration-resistant processing of printed circuit boards (coating/potting) ■ Assembly of control devices and control panels *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board
• Circuit board design and manufacturing

Tojo Manufacturing Co., Ltd. will respond sincerely from the first prototype. With a constant stock of chip CRs, well-equipped facilities, and skilled solder craftsmen, we can provide printed circuit board prototypes in as little as one day after receiving your request. *Please note that delivery times may vary depending on the assembled boards, so feel free to contact us for details. With a thorough inspection system and PPM management, we have received high praise for the quality of our board prototypes from publicly listed companies. If you are facing issues with the prototype, delivery time, or quality of printed circuit boards, please leave it to Tojo Manufacturing Co., Ltd., which has a wealth of experience and a high reputation for quality. 【Scope of Services (Excerpt)】 ■ Quantity: From 1 unit ■ Solder Types: Eutectic solder, lead-free solder ■ Board Materials: Glass epoxy boards, aluminum boards, flexible boards, etc. ■ Board Types: Single-sided, double-sided ■ Board Sizes: L60mm × W50mm to L510mm × W385mm ■ Board Thickness: 0.8mm to 2mm (standard 1.6mm) *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board
• Prototype Services

This document is a collection of basic knowledge explaining potting (for waterproofing, seismic resistance, dustproofing, explosion-proofing of circuit boards) and coating (for moisture-proofing and insulation measures of circuit boards). It introduces the effects and purposes, work methods, and frequently asked questions. Additionally, a comparison table by effect is also included. If you are struggling with installation in special locations, please feel free to contact us. 【Contents (excerpt)】 ■ What is potting? - Overview / Effects and purposes / Work methods ■ Frequently asked questions - Isn't potting expensive? ■ Main criteria for judgment ■ Comparison table by effect *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

At Tojo Manufacturing, we can provide total support for printed circuit boards, from prototyping, design, and implementation to the final assembly of peripheral components. In quality control, we have established a system that meets our customers' strict quality evaluation standards, including rigorous inspections utilizing both equipment and human eyes, PPM management, Pb-free solder analysis, and dedicated RoHS production lines. Additionally, we achieve a reduction in lead time for prototyping and development through speedy material procurement. 【Reasons to Choose Us】 ■ Total support for printed circuit board assembly, including final assembly ■ Quality control system ■ Rapid material procurement ■ Flexible response *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing
• Other contract services
• Other electronic parts

At Tojo Manufacturing, we perform surface mounting using the YAMAHA mount 'YSM10'. We can accommodate board sizes from 50mm x 50mm to 510mm x 460mm (the printing machine is 380mm x 330mm). Additionally, through machine mounting, we can achieve high-precision and high-speed mounting even during mass production. Regarding component procurement, we always keep chip resistors and chip ceramic capacitors in stock, and we can also procure and purchase items that are not in our internal inventory or other components. 【Features】 ■ Since the mounting is done by machine, mass production can be done stably and at high speed (provided that components are arranged in reels or trays). ■ The incorporation of small electronic components allows for miniaturization and weight reduction of the circuit board. ■ The wiring length of the printed circuit board is shortened, enabling faster circuits. ■ Unlike insertion mounting, it does not require holes (through-holes). ■ Since electrodes are simply soldered to pads, it can accommodate high-density boards that utilize both sides of the circuit board. *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• Other mounting machines

Tojo Manufacturing has introduced the new SAKI model 3D image inspection device, the '3Di-LS series,' which was implemented in August 2019, strengthening its inspection system. Previously, inspections were conducted using 2D images, but with the introduction of this series, inspections have become more precise by adding height measurements to the flat image inspections. 【Features】 ■ Full 3D measurement inspection is possible using a projector system ■ No floating defects are overlooked with full 3D measurement inspection ■ Precise inspections are achievable with an optical head that has a resolution of 12μm ■ High-speed and high-precision inspections are possible ■ High positional accuracy, high stopping accuracy, and fast inspections are realized with SAKI hardware and CoaXPress standard cameras *For more details, please refer to the PDF document or feel free to contact us.

• Other image-related equipment
• Other inspection equipment and devices

At Tojo Manufacturing, we always have chip CR in stock, so we can immediately start working on printed circuit board prototypes upon your request. Even if we do not have the materials in-house, we can quickly procure them using our supply network, allowing us to prototype and implement in a short lead time. You can view a list of the components and materials we have in stock (PDF) from the "PDF Download" section. *Please note that the inventory list below is for reference only, so please contact us for actual stock availability. 【Standard Inventory List】 ■ Chip Ceramic Capacitors ■ Chip Resistors (Thick Film) ■ Chip Resistors (Thin Film) *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board
• Processing Contract

We would like to introduce our achievements in the production of printed circuit boards related to control panel assembly. We have experience in assembling industrial equipment control units, where components are connected to the board with wiring, as well as in assembling control units that are built up by unit and mounted onto devices. Our company can provide total support for printed circuit boards, from prototyping, design, and implementation to the final assembly of peripheral components. Please feel free to contact us with your requests. 【Production Achievements】 ■ Assembly of industrial equipment control units - Components are connected to the board with wiring. ■ Assembly of instrumentation panels - Assembly is carried out as a final product. ■ Assembly of control units - Units are assembled individually and mounted onto devices. *For more details, please refer to the external link page or feel free to contact us.

• Printed Circuit Board
• Processing Contract

We have manufactured control boards for resin processing machines and crimping machines. At Tojo Manufacturing, we offer one-stop total solutions from prototype printed circuit boards to final assembly. If you are facing issues with delivery times or quality, please feel free to consult us. 【Features】 ■ Manufactured control boards for resin processing machines and crimping machines *For more details, please visit the external link page or feel free to contact us.

• Printed Circuit Board
• Processing Contract

Our company has a track record in the production of circuit boards for various measuring instruments and other LCD assembly. Tojo Manufacturing offers one-stop total solutions from prototype printed circuit boards to final assembly. If you are facing issues with delivery times or quality, please feel free to consult with us. [Achievements] ■ Production of circuit boards for various measuring instruments ■ Other LCD assembly, etc. *For more details, please refer to the external link page or feel free to contact us.

• Printed Circuit Board
• Processing Contract

Our company has a wealth of experience in manufacturing handheld processing equipment, charger circuit boards, memory card charger circuit boards, EV charging device control circuit boards, and more. Tojo Manufacturing offers one-stop total support from prototype printed circuit boards to final assembly. Please feel free to consult us if you have any concerns regarding delivery times or quality. 【Manufacturing Achievements】 ■ Handheld processing equipment and charger circuit boards ■ Memory card charger circuit boards ■ EV charging device control circuit boards, etc. *For more details, please refer to the external link page or feel free to contact us.

• Printed Circuit Board
• Processing Contract

In the production of printed circuit boards related to medical devices, we perform board coating from the perspective of protecting the printed circuit boards. Tojo Manufacturing Co., Ltd. offers one-stop total support from prototype printed circuit boards to final assembly. If you are facing issues with delivery times or quality, please feel free to consult with us. 【Features】 ■ We perform board coating from the perspective of protecting printed circuit boards. *For more details, please refer to the external link page or feel free to contact us.

• Printed Circuit Board
• Processing Contract

If waterproofing is necessary, if you want to protect the circuit board from vibrations, or if you are concerned about the reduced lifespan of the mounted circuit board due to dirt, resin potting is the solution. Transparent potting has the advantage of being clear, allowing for inspection of the surface of the circuit board. There are no limits to the work size for resin potting. Please feel free to consult us regardless of the size of the circuit board. 【Advantages of Transparent Potting】 ■ Being transparent allows for inspection of the surface of the circuit board ■ Excellent waterproofing (equivalent to IP64), dustproofing, and vibration resistance ■ Can be implemented at a low cost ■ Prototyping is possible *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

If waterproofing is necessary, if you want to protect the circuit board from vibrations, or if you are concerned about the reduced lifespan of the mounted circuit board due to dirt, resin potting is the solution. Black potting has a high hardness of 76, but it has the advantage of not putting stress on the circuit board. There are no limits to the work size for resin potting. Please feel free to consult us regardless of the size of the circuit board. 【Advantages of Black Potting】 ■ High hardness of 76, but does not stress the circuit board ■ Excellent waterproofing (equivalent to IP67), dustproofing, explosion-proofing, and earthquake resistance ■ Prototyping is possible *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Coating Agent

Resin potting involves injecting urethane resin into cases, effectively shutting out dust, dirt, and water. Additionally, since the circuit board is fixed in place, it can be protected from vibrations. It is recommended for waterproofing, extending the lifespan, and enhancing earthquake resistance of mounted circuit boards. We will carry out the work according to your requirements, so please feel free to contact us. 【Benefits of Resin Potting】 ■ No worry about dust or dirt adhering to the circuit board ■ Excellent waterproofing and moisture resistance ■ Strong against vibrations and shocks as the case can be filled and fixed with resin ■ Can extend the component replacement cycle, making it effective for products intended for overseas markets ■ Prototyping is possible *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Coating Agent

At Tojo Manufacturing, we offer resin coating for printed circuit boards. By coating the surface of the board with urethane resin, it is possible to protect the board from dust, dirt, and water. This is particularly useful for overseas products where maintenance can be challenging. 【Benefits of Resin Coating】 ■ No worries about dust or dirt adhering to the board ■ Excellent waterproof and moisture-proof properties ■ Extends the component replacement cycle, making it effective for overseas products ■ Prototyping is possible *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Coating Agent

"The unit price is low, but the loss rate is high, resulting in high costs. It arrived quickly, but there are operational failures..." If you have any concerns regarding circuit board assembly, please consult Tojo Manufacturing. We will respond with agility and quality. Leveraging our experience in prototype and assembly across various fields and products, we achieve short delivery times. We can even provide circuit board prototypes in as little as one day. We also conduct Pb-free solder analysis to meet our customers' needs. 【Features】 ■ Small lot and short delivery time ■ Circuit board prototypes available in as little as one day ■ Quality control through PPM management ■ Pb-free solder analysis conducted ■ Chip CR inventory and material procurement *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board
• Processing Contract

If you are having trouble with prototype printed circuit boards regarding delivery time or quality, please leave it to Tojo Manufacturing, which has a wealth of experience and is highly regarded for its quality. With our constant stock of chip capacitors, well-equipped facilities, and skilled soldering craftsmen, we can prototype printed circuit boards in as little as one day after receiving your request. We respond quickly to assembly and mounting as well. By communicating with our customers, starting with design confirmation, we ensure rapid and reliable prototype board production. 【Features】 ■ Delivery possible in as little as one day ■ Quick response for assembly and mounting ■ Quality assurance ■ Thorough inspection system and PPM management ■ Flexible response *For more details, please refer to the PDF document or feel free to contact us.

• Printed Circuit Board
• Processing Contract

If waterproofing is necessary, or if you want to protect the circuit board from vibrations, or if you are concerned about the reduced lifespan of the mounted circuit board due to dirt, resin potting is the solution. By injecting urethane resin into cases, dust, dirt, and water can be shut out. Additionally, since the circuit board is fixed in place, it can be protected from vibrations. **Advantages of Resin Potting** - No worries about dust or dirt adhering to the circuit board - Excellent waterproofing and moisture resistance - Strong against vibrations and shocks as the case can be filled and fixed with resin - Can extend the component replacement cycle, making it effective for products aimed at overseas markets - Prototyping is possible *For more details, please download the PDF or feel free to contact us.*

• Processing Contract