EPO Patents = 2

Forward Citations = 2

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6 inventors (with patents filed for the assignee):

Masao Iwaya (2 out of 19 patents)

Shinya Ono (2 out of 2 patents)

Naoki Doi (2 out of 2 patents)

4. Fumio Tanabiki (1 out of 4 patents)

5. Toshihiko Nijukken (1 out of 2 patents)

6. Akira Okazaki (1 out of 1 patent)

7. Iwaya Masao (0 patent)

8. Ono Shinya (0 patent)

9. Doi Naoki (0 patent)

10. Akira Okazaki (0 patent)

3 patents: Sort by Forward Citations

#3,543 in Tokyo

#8,922 in Japan

Daicel Finechem Ltd.

Forward Citations = 2

6 inventors:

Masao Iwaya (2 out of 19 patents)

Shinya Ono (2 out of 2 patents)

Naoki Doi (2 out of 2 patents)

4. Fumio Tanabiki (1 out of 4 patents)

5. Toshihiko Nijukken (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daicel Finechem Ltd.. Retrieved from https://idiyas.com/company/daicel-finechem

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]

2 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]