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Top 10 Injection Molding Companies In Japan

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Plastic refers to resin as the main component of polymer organic compounds, referred to as polymers. In the national economy, plastic parts are one of indispensable important materials in various industries.

Japan’s plastic raw materials industry is quite mature. Extraction, processing, recycling, recycling, self-sufficiency, and the amount and quantity of plastic raw materials and injection molding products are among the top in the world.

It is the main source of plastic raw materials and products imported from China. Thanks to its large and advanced industrial system, Japan’s plastic injection molding industry is also one of the most high-tech industries in the world, and its scale is also second to none in the world. It is also China’s largest source of plastic injection molding imports.

Are you looking for the right injection mold supplier in Japan? We have compiled the top 10 injection molding suppliers in Japan list for you to pick below:

Top 10 Injection Molding Companies In Japan

1. Sanko Kasei Group

Location: Tokyo, Japan
Company type: Manufacturing
Year founded: 1965
The number of employees: 200-299
Main Services: Development&Technical Capabilities, Product Design, Mold Design, Mold Making

Sanko Kasei Group Company Profile

Sanko Kasei Group handles all processes in product manufacturing, focusing on engineering plastic parts, from product design, planning, and analysis to injection mold design, manufacturing, injection molding, processing, and inspection until shipping.

They can implement this integrated production system by a network based on the high comprehensive strength. They will fully support what customer “want to make”.

In addition, by supporting the entire manufacturing process with an integrated production system, they are improving quality and rationalization of costs and delivery times rapidly.

2. Yasui Co., Ltd.

Location: Miyazaki, Japan
Company type: Manufacturing
Year founded: 1930
The number of employees: 200-299
Main Services: Injection molding (mainly medical device parts) and medical products

Yasui Co., Ltd. Company Profile

Yasui Co., Ltd. was founded in 1930 in Osaka as a printing company. They later broadened into areas including injection molding (mainly medical device parts) and medical products (original and OEM). They are ISO 9001 and ISO 13485 certified, reinforcing quality control and management to meet high international standards.

They applied 90+ years of innovation and quality control in Japanese manufacturing to develop koplight™, an original design that meets specific clinical needs. Yasui Medical is aggressively expanding its global reach, bringing Made in Japan quality to the world’s markets.

3. Daido

Location: Nishiyodogawa-ku, Japan
Company type: Manufacturing
Year founded: 1945
The number of employees: 100-199
Main Services: Injection molding, Extrusion molding, LSR, Products, Manufacturing facilities, Production sites, Resin properties

Daido Company Profile

Injection molding is the process of obtaining a product by injecting a molten material into a mold, and cooling and solidifying it. The process is suitable for mass-producing products in a variety of shapes from simple to complex.

They have 14 injection molding machines capable of clamping forces from 80 tons to 350 tons, and offer products in a wide range of fields including the automotive, office appliance, construction and environmental fields.

They are the first company in the automotive industry of Japan to manufacture airbag covers with a single injection system and excel in injection molding elastomer parts.

Since the launch of their molding business in 1947, they have been using a variety of technologies including injection molding, extrusion molding and LSR, and offering high-quality products across an extensive range of fields including products for automobiles, office appliances, cables, construction, sundries and silicone lenses.

They have also acquired certification as a medical device manufacturing plant and are moving into marketing such devices. As a molding company, they address a wide variety of elaborate customer needs with a one-stop production system for everything from injection molds to molding.

4. Yasuda Manufacturing Co., Ltd.

Location: Kuwana City, Japan
Company type: Manufacturing
Year founded: 1947
The number of employees: 100-199
Main Products: Sales of large plastic injection and die casting molds, import and export of repair CAD/CAM data, molds and mold parts

Yasuda Manufacturing Co., Ltd. Company Profile

At Yasuda Seisakusho, they have a strong desire not to erase Japan, the manufacturing powerhouse, and to make it a thing of the past. Even if the level of processing technology overseas improves, there are many things that only Japanese engineers can do. By continuing to supply high-quality products, they will protect Japanese technology and pass it on to future generations.

Since 1947, they have set a policy of 120% customer satisfaction and quality first, and have been working on the injection mold business with top priority on quality. They are also focusing on cost reduction, safety and health activities, and the promotion of SDGs, and they have received positive feedback.

In recent years, the needs of customers in the injection mold industry are constantly diversifying and becoming more sophisticated amid rapid changes in domestic and international socio-economic conditions.

5. NIPPLA Inc.

Location: Hiroshima, Japan
Company type: Manufacturing
Year founded:
The number of employees: 100-199
Main Services: Installation, inspection and injection molding

NIPPLA Inc. Company Profile

NIPPLA Inc. is wholly owned subsidiary of The Japan Steel Works, Ltd., They have two business pillars. One of the pillars is providing service for installation, inspection and repair of injection molding machine (manufactured by JSW), regardless of the size of the device: from small to extra-large. They are the sole company undertakes maintenance of all the machines operated in Japan.

Another pillar is the development and manufacturing of automation devices. Upon request from the customers, such as “to automate the manual operation of the company”, they provide custom-made automation devices/automation systems with a series of flows: proposal, designing, and manufacturing.

Injection molding machines and automation devices continue manufacturing products around the world. NIPPLA is the company to provide support in “manufacturing products” on-site.

6. Maruhachi Paint Co., Ltd

Location: Shizuoka, Japan
Company type: Manufacturing
Year founded: 1968
The number of employees: 100-199
Main Services: Mold production of two-wheel, four-wheel, and resin parts/resin molding/painting and sub-assembly

Maruhachi Paint Co., Ltd Company Profile

Sincerely create products that are always trusted and which satisfy customers, support all employees to live a happy life, and the company will respond to any changes in the social environment and create a corporate structure that can develop.

To embody designs that preserve the customer’s sense of brand, they produce high-quality products through integrated production, from injection mold production to resin molding, painting, and sub-assembly.

7. Fudow Company Limited

Location: Yokohama, Japan
Company type: Manufacturing
Year founded: 1935
The number of employees: 100-199
Main Services: Manufacture and sale of thermosetting resin molding compounds, manufacture, and sale of xylene resins, purchase and sale of plastic molding materials, molding machinery, die making, molding and sale of large thermoplastic resin molding products

Fudow Company Limited Company Profile

They provide precision and large-sized molded products through a variety of molding and processing technologies, including co-injection (low-foaming sandwich molding), injection molding and gas-assisted molding. They also offer finished products that include the secondary processing stages of coating and assembly.

8. PBI Advanced Materials Co., Ltd.

Location: Tokyo, Japan
Company type: Manufacturing
Year founded: 2008
The number of employees: 100-199
Main Services: Compression molding, extrusion, injection molding

PBI Advanced Materials Co., Ltd. Company Profile

PBI Advanced Materials Co., Ltd. (PBi-am) develops, manufactures, and sells special compound materials that specialize in ultra-high heat-resistant resins. They are focusing on the development of high-value-added materials by blending various super engineering plastics with highly functional fillers such as carbon nanotubes and fine ceramics.

In addition, PBi-am is a member of the Sato Group and utilizes the strengths of each group company to handle integrated production from material development, mold design/manufacture, injection molding, and assembly.
PBI Advanced Materials Co., Ltd. (PBi-am) develops and sells special compound materials that contain various fillers for materials supplied by resin manufacturers.

In addition, PBi-am cooperates with Sato Light Industry Co., Ltd., a group company, to handle integrated production from material development to injection molding finished products. They provide base materials for processing by injection molding suitable for high-temperature, high-compression molding, and cost reduction using their unique “PBI method”.

9. Daytech Co.,LTD

Location: Hachioji-shi, Tokyo
Company type: Manufacturing
Year founded: 1968
The number of employees: 100-199
Main Services: Plastic design, Injection molding

Daytech Co,Ltd. Company Profile

Daytech was founded in Hachioji in 1968 (Showa 43). As a company closely linked to the community, they have developed relationships of trust with many customers and continue to this day since the establishment.

They have been working to introduce the state-of-the-art equipment and improve their technological capabilities in the technical field as well.

Daytech Co,Ltd. is located in Tokyo, Japan, developing “prototype plastic injection molds” and supplying plastic parts for electronics, medical industries and household-appliance industries, especialy for R&D divisions.

One of their best practice of plastic injection molds is creating molds by Alminum such as Al7075S. They cut alminum plastic molds directory. By doing so, the injection molds are precise and small-sized, and it benefitial for companies which aim to develop small lot of precision plastic parts.

Prototype molds are not plastic injection molds that can be used only for prototyping. With their unique technology, they can use prototype molds for injection molding from prototypes to small-lot mass production with the same quality as mass production. Small-lot mass production is possible for 100 to 5,000 units, depending on the shape, and they have experience with up to 10,000 units.

10. Marusun Inc.

Location: Fuchu, Japan
Company type: Manufacturing
Year founded: 1955
The number of employees: 100-199
Main Services: Mold for injection molding / FRP mold for SMC, BMC / Mold for SPM, ISM / Mold for compression / Mold for various resin molding

Marusun Inc. Company Profile

Since its establishment in 1955, the Marusun Suruga Group has been a specialized die and injection mold manufacturer and has established a great know-how regarding the design and manufacture of various molds, various jigs, and various specialized machines.

Since their establishment, they have continuously contributed to society, and they are deeply grateful to their customers for the growth of their group.

The one of the biggest die and injection mold supply base, This is the intention of the Marusun Suruga Group, and they have made steady progress under the motto of “Best products, competitive, short lead-time” amid increasingly sophisticated and complex market needs. They will continue to do their best to provide valuable dies and molds.

If you’re looking for more injection molding manufacturers, Also you can choose a Chinese injection mold supplier: Zetar Mold

Zetar Mold

Location: Shanghai, China
Company type: Manufacturing
Year founded: 2005
The number of employees: 201-300
Main product: Plastic Injection Mold, Plastic Injection Molding Manufacturing
Other products: Overmolding Products, Insert Molding Products, 3D printing and CNC Prototyping

Zetar Company Profile

Zetar is a top-end turnkey manufacturing company that helps wholesalers and brand owners fulfill their products.

Zetar has more than 20 English speakers and 7 experienced injection mold design engineers (some of them can also speak English) with technique and english communication, which could make sure fluent communication and offer feasible design solutions.

Now total Zetar has mold making shop in house, 31 sets injection molding machines range from 60T-1100T. which 6 sets are in dust-free room(M7 Class), assembly room and logo printing room. The largest 1100T injection molding machines could produce product weight up to 5100g.

Zetar definitely also has many certificates: TUV, ISO9001 (quality system certification), TS16949 (certification for auto parts making), ISO14001 (certification for showing not harming the environment during whole manufacturing process).

Conclusion

Finding a trustworthy manufacturer nowadays is not that easy, especially since there are a lot of new manufacturers that have emerged just to keep up with the trend. But hopefully, their list was able to help you find the injection molding manufacturer that best suits your requirements. It is recommended to do a background check before creating partnerships with manufacturers because they will play a huge part in the success of your business.

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