Howa Plastics Co., Ltd. is a prominent manufacturer based in Toyota, Japan, specializing in the development and production of high-quality plastic products. The company focuses on innovative solutions for various industries, including automotive, electronics, and consumer goods. With a commitment to advanced manufacturing techniques and sustainable practices, Howa Plastics aims to meet the evolving needs of its clients while enhancing product performance and reliability. Their expertise encompasses materials science and engineering, positioning them as a key player in the plastics sector.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#16 in Toyota

#3,443 in Japan

#39,921 in the World

Toyota, Japan

Howa Plastics Co., Ltd.

Forward Citations = 75

26 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Howa Plastics Co., Ltd.. Retrieved from https://idiyas.com/company/howa-plastics-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

8 patents (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]