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Tsutsunaka Plastic Industry Co., Ltd.

USPTO Granted Patents = 8

Forward Citations = 121

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19 inventors (with patents filed for the assignee):

Hiroyoshi Nanri (3 out of 3 patents)

Takashi Yamanaka (1 out of 37 patents)

Adriaan Beukers (1 out of 7 patents)

4. Masaya Sera (1 out of 1 patent)

5. Yasuo Kumamoto (1 out of 1 patent)

6. Takatoshi Imafuku (1 out of 1 patent)

7. Kazuhiro Otani (1 out of 2 patents)

8. Shoichi Makimoto (1 out of 4 patents)

9. Toshihiko Nakano (1 out of 6 patents)

10. Kazuhiro Ogawa (1 out of 1 patent)

11. Haruhiro Fukuda (1 out of 1 patent)

12. Masaaki Funaki (1 out of 3 patents)

13. Shinji Oita (1 out of 1 patent)

14. Hiroaki Arai (1 out of 1 patent)

15. Kazunori Naitou (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 6338232 - Waterproof sheet fixing member and method of fixing the same (2002-01-15),

2. 6024904 - Method of making an antifogging window plate of synthetic resins (2000-02-15),

3. 5962309 - Extruded foamed polyolefin resin carrier for microorganisms in a (1999-10-05),

4. 5789057 - Sheet blow molding and molding method (1998-08-04),

5. 5766739 - Panel composed of synthetic resins and coated with an antifogging layer (1998-06-16),

6. 5733488 - Method of making a foamable film (1998-03-31),

7. 5286537 - Double glazing glass (1994-02-15),

8. 4980223 - Sheet for forming article having electromagnetic wave shieldability (1990-12-25),

Tsutsunaka Plastic Industry Co., Ltd. is a leading manufacturer of plastic products, specializing in injection molding and assembly. With over 50 years of experience, we provide high-quality plastic components for a variety of industries including automotive, electronics, and consumer goods. Our dedication to innovation and customer satisfaction has earned us a reputation for excellence in the industry.

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

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USPTO Data Jan 1 1976 - Dec 30 2025

8 Patents

#469 in Osaka

#4,916 in Japan

Tsutsunaka Plastic Industry Co., Ltd.

Forward Citations = 121

19 inventors:

Hiroyoshi Nanri (3 out of 3 patents)

Takashi Yamanaka (1 out of 37 patents)

Adriaan Beukers (1 out of 7 patents)

4. Masaya Sera (1 out of 1 patent)

5. Yasuo Kumamoto (1 out of 1 patent)

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