Ohei Developmental Industries, Co., Inc.

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USPTO Granted Patents = 2

Forward Citations = 23

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4 inventors (with patents filed for the assignee):

Takehiko Moriya (2 out of 7 patents)

Yoshihisa Saito (2 out of 5 patents)

Hisaaki Makino (2 out of 2 patents)

4. Masazumi Kanazawa (2 out of 3 patents)

2 patents: Sort by Forward Citations

1. 6066263 - Apparatus for converting waste plastic into oil (2000-05-23),

2. 5843386 - Hydrothermal reaction apparatus (1998-12-01),

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USPTO Data Jan 1 1976 - Nov 3 2026

2 Patents

#11 in Kochi

#11,154 in Japan

Kochi, Japan

Ohei Developmental Industries, Co., Inc.

Forward Citations = 23

4 inventors:

Takehiko Moriya (2 out of 7 patents)

Yoshihisa Saito (2 out of 5 patents)

Hisaaki Makino (2 out of 2 patents)

4. Masazumi Kanazawa (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ohei Developmental Industries, Co., Inc.. Retrieved from https://idiyas.com/company/ohei-developmental-industries-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]