% Expired Patents = 50.0

Forward Citations = 0

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6 inventors (with patents filed for the assignee):

Hiroaki Yamamoto (1 out of 28 patents)

Yasutaka Ishii (1 out of 55 patents)

Tatsuya Nakano (1 out of 55 patents)

4. Norihiro Kimoto (1 out of 10 patents)

5. Kazuya Mitsuhashi (1 out of 11 patents)

6. Atsuo Tatsumi (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6768030 - Process for producing organic peroxides (2004-07-27),

2. 6485948 - Carbonyl reductase, method for producing said enzyme, DNA encoding said enzyme, and method for producing alcohol using said enzyme (2002-11-26),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#1,147 in Osaka

#11,133 in Japan

Osaka, Japan

Daicel Corporation Industries, Ltd.

Forward Citations = 0

6 inventors:

Hiroaki Yamamoto (1 out of 28 patents)

Yasutaka Ishii (1 out of 55 patents)

Tatsuya Nakano (1 out of 55 patents)

4. Norihiro Kimoto (1 out of 10 patents)

5. Kazuya Mitsuhashi (1 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daicel Corporation Industries, Ltd.. Retrieved from https://idiyas.com/company/daicel-industries

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]