Asahi Kasei Corporation

Calculating rank

USPTO Granted Patents = 6

% Expired Patents = 50.0

EPO Patents = 1

Forward Citations = 36

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18 inventors (with patents filed for the assignee):

Kazuto Nagata (2 out of 2 patents)

Yoshinori Naruta (2 out of 2 patents)

Masatoshi Yakiyama (2 out of 2 patents)

4. Yoshihiro Noguchi (1 out of 17 patents)

5. Jennhwa Fu (1 out of 2 patents)

6. Hsin-Hsiung Huang (1 out of 4 patents)

7. Mei-Li Wang (1 out of 1 patent)

8. Keiji Shimada (1 out of 2 patents)

9. Ken Ishihara (1 out of 3 patents)

10. Eiichi Ohno (1 out of 1 patent)

11. Yutaka Natsume (1 out of 1 patent)

12. Nobuhiko Suga (1 out of 7 patents)

13. Tatsuo Nejigaki (1 out of 1 patent)

14. Takashi Minakata (1 out of 5 patents)

15. Frank Manis (0 patent)

6 patents: Sort by Forward Citations

1. 10243099 - Light-emitting device (2019-03-26),

2. 8236998 - Polyacene compound and organic semiconductor thin film (2012-08-07),

3. 8110714 - Polyacene compound and organic semiconductor thin film (2012-02-07),

4. 7894637 - Device, program, and method for classifying behavior content of an object person (2011-02-22),

5. 7595093 - Condensed polycyclic aromatic compound thin film and method for preparing condensed polycyclic aromatic compound thin film (2009-09-29),

6. 6592152 - Joint structure for filtration membrane module (2003-07-15),

Company Overview

Asahi Kasei is a global chemical company that provides innovative products and solutions in the fields of health care, fibers & textiles, housing & construction, and electronics. With a focus on sustainability and high-quality products, Asahi Kasei is committed to creating value for customers and society.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#2,469 in Tokyo

#5,990 in Japan

Tokyo, Japan

Asahi Kasei Corporation

Forward Citations = 36

18 inventors:

Kazuto Nagata (2 out of 2 patents)

Yoshinori Naruta (2 out of 2 patents)

Masatoshi Yakiyama (2 out of 2 patents)

4. Yoshihiro Noguchi (1 out of 17 patents)

5. Jennhwa Fu (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asahi Kasei Corporation. Retrieved from https://idiyas.com/company/asahi-kasei

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]

1 patent (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]