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Dainippon Plastics Co., Ltd.

USPTO Granted Patents = 12

Forward Citations = 165

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16 inventors (with patents filed for the assignee):

Yoshio Kishima (5 out of 6 patents)

Teruo Iwanaga (3 out of 3 patents)

Tadasu Inoue (3 out of 3 patents)

4. Masahiro Hotta (3 out of 3 patents)

5. Yasuo Yoshida (2 out of 4 patents)

6. Hirofumi Kinugasa (2 out of 2 patents)

7. Hitoshi Goto (2 out of 2 patents)

8. Itsuo Nishiyama (1 out of 5 patents)

9. Tadashi Sakurai (1 out of 3 patents)

10. Tadashi Kakinuma (1 out of 1 patent)

11. Yoshio Kisima (1 out of 1 patent)

12. Shigetoshi Fujiwara (1 out of 1 patent)

13. Takashi Tomiita (1 out of 1 patent)

14. Shigeo Ichihara (1 out of 1 patent)

15. Yoshio Kashima (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5476636 - Apparatus for performing weather resistance test (1995-12-19),

2. 5333494 - Material strength measuring apparatus (1994-08-02),

3. 5249076 - Optical filter structure (1993-09-28),

4. 4995273 - Method of an apparatus for weather resistance test (1991-02-26),

5. 4931655 - Apparatus for accelerated weather-testing of a sample using a metal (1990-06-05),

6. 4822684 - Sandwich glass (1989-04-18),

7. 4817447 - Weather resistance tester (1989-04-04),

8. 4769415 - Resin composition (1988-09-06),

9. D293874 - Agricultural support stake (1988-01-26),

10. 4668588 - Polycarbonate molded articles having excellent weather resistance and (1987-05-26),

11. 4588777 - Synthetic resin composition (1986-05-13),

12. 3982650 - Collapsible container (1976-09-28),

Dainippon Plastics Co., Ltd. is a leading manufacturer of plastic products based in Japan. With over 50 years of experience in the industry, the company specializes in the production of plastic packaging materials, industrial plastic products, and plastic components for various industries. Dainippon Plastics is known for its commitment to quality, innovation, and sustainability in all aspects of its operations.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#364 in Osaka

#3,833 in Japan

#46,685 in the World

Dainippon Plastics Co., Ltd.

Forward Citations = 165

16 inventors:

Yoshio Kishima (5 out of 6 patents)

Teruo Iwanaga (3 out of 3 patents)

Tadasu Inoue (3 out of 3 patents)

4. Masahiro Hotta (3 out of 3 patents)

5. Yasuo Yoshida (2 out of 4 patents)

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