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Howa Plastics Co., Ltd.

USPTO Granted Patents = 15

EPO Patents = 8

Forward Citations = 74

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34 inventors (with patents filed for the assignee):

Hideki Kajio (5 out of 5 patents)

Hidekazu Makimura (3 out of 3 patents)

Yosuke Matsuzawa (2 out of 2 patents)

4. Hiroyuki Oe (2 out of 3 patents)

5. Kazuhiro Kawamura (2 out of 9 patents)

6. Shouji Kawakami (2 out of 2 patents)

7. Keisuke Sakakibara (1 out of 1 patent)

8. Hiroki Takada (1 out of 2 patents)

9. Atsushi Yamaguchi (1 out of 11 patents)

10. Kazuo Kondo (1 out of 44 patents)

11. Naoyuki Takahashi (1 out of 7 patents)

12. Yoko Ishiguro (1 out of 4 patents)

13. Shota Uchiyama (1 out of 1 patent)

14. Keiko Tanaka (1 out of 5 patents)

15. Masaaki Yamamoto (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 11566814 - Register (2023-01-31),

2. 11371745 - Fin for register (2022-06-28),

3. 11351844 - Register (2022-06-07),

4. 10632669 - Helical layer structure and manufacturing method of helical layer structure (2020-04-28),

5. 10106014 - Operation knob for register (2018-10-23),

6. 9989275 - Register (2018-06-05),

7. 9187021 - Assist grip (2015-11-17),

8. 9162551 - Register (2015-10-20),

9. 8732911 - Assist grip (2014-05-27),

10. 8602852 - Air blowing device (2013-12-10),

11. 8408621 - Assist grip (2013-04-02),

12. 8245357 - Assist grip (2012-08-21),

13. 8146208 - Assist grip (2012-04-03),

14. 7780508 - Air outlet device for vehicle cabin (2010-08-24),

15. 7566261 - Air outlet device for vehicle cabin (2009-07-28),

HOWA PLASTICS CO., LTD. is a leading manufacturer of plastic products. With expertise in injection molding, we offer a wide range of high-quality plastic components for various industries including automotive, electronics, and consumer goods. Our commitment to innovation and quality has made us a preferred choice for global customers seeking reliable and durable plastic solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#14 in Toyota

#3,363 in Japan

#38,669 in the World

Howa Plastics Co., Ltd.

Forward Citations = 74

34 inventors:

Hideki Kajio (5 out of 5 patents)

Hidekazu Makimura (3 out of 3 patents)

Yosuke Matsuzawa (2 out of 2 patents)

4. Hiroyuki Oe (2 out of 3 patents)

5. Kazuhiro Kawamura (2 out of 9 patents)

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