Forward Citations = 1

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4 inventors (with patents filed for the assignee):

Tomokiyo Takeyama (1 out of 5 patents)

Akiyoshi Oda (1 out of 2 patents)

Yasuhito Kawase (1 out of 1 patent)

4. Taijun Kawase (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 10076722 - Gas-liquid contact device, distillation device, and heat exchange device (2018-09-18),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#1 in Anpachi

#15,759 in Japan

Anpachi, Japan

Nippon Refine Co., Ltd.

Forward Citations = 1

4 inventors:

Tomokiyo Takeyama (1 out of 5 patents)

Akiyoshi Oda (1 out of 2 patents)

Yasuhito Kawase (1 out of 1 patent)

4. Taijun Kawase (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Refine Co., Ltd.. Retrieved from https://idiyas.com/company/nippon-refine-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]