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Okayama Prefecture

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USPTO Granted Patents = 16

% Expired Patents = 75.0

EPO Patents = 2

Forward Citations = 33

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24 inventors (with patents filed for the assignee):

Kenichi Ogawa (14 out of 27 patents)

Satoshi Kondo (7 out of 38 patents)

Chikara Ohto (7 out of 53 patents)

4. Norihiro Mitsukawa (4 out of 32 patents)

5. Kenji Henmi (4 out of 5 patents)

6. Hiroki Sugimoto (2 out of 13 patents)

7. Yukinori Nagatani (2 out of 3 patents)

8. Nobuhiko Muramoto (2 out of 34 patents)

9. Tomoko Tanaka (2 out of 21 patents)

10. Aya Iwasaki (2 out of 2 patents)

11. Etsuko Hattori (2 out of 3 patents)

12. Hisashi Ito (2 out of 4 patents)

13. Iwao Furusawa (2 out of 5 patents)

14. Yoshikazu Tanaka (2 out of 19 patents)

15. Madoka Yonekura (1 out of 8 patents)

16 patents: Sort by Forward Citations

1. 9930887 - Compound for increasing amino acid content in plant, and use thereof (2018-04-03),

2. 9820910 - Biological measurement apparatus and biological stimulation apparatus (2017-11-21),

3. 9803213 - Method for imparting environmental stress resistance to plants (2017-10-31),

4. 9695435 - Gene for increasing the production of plant biomass and/or seeds and method for use thereof (2017-07-04),

5. 9546376 - Gene for increasing the production of plant biomass and/or seeds and method for use thereof (2017-01-17),

6. 9532519 - Plant growth regulator and use thereof (2017-01-03),

7. 9297020 - Gene for increasing the production of plant biomass and method of use thereof (2016-03-29),

8. 9020576 - Biological measurement apparatus and biological stimulation apparatus (2015-04-28),

9. 8927286 - Method for producing clone seedlings (2015-01-06),

10. 8822758 - Gene capable of increasing the production of plant biomass and method for using the same (2014-09-02),

11. 8268748 - Composition for production of plant body having improved sugar content, and use thereof (2012-09-18),

12. 8173865 - Plant having increased yield of seeds (2012-05-08),

13. 8097770 - Plant having improved growth ability and disease resistance and method for production thereof (2012-01-17),

14. 7993914 - Paraquat resistance gene and a vascular tissue- and trichome-specific promoter (2011-08-09),

15. 7479267 - Cell-or organ-differentiation controllers and method of controlling morphogenesis by using the same (2009-01-20),

Company Overview

Okayama Prefecture, located in the western part of Japan, is known for its rich cultural heritage and diverse natural landscapes. The region specializes in agriculture, particularly in the production of premium fruits such as peaches and grapes, alongside a thriving textile industry. Additionally, Okayama is a hub for advanced research in fields like biotechnology and environmental technology, fostering innovation and collaboration among local universities and industries. Its strategic location enhances its role in trade and tourism within Japan.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

16 Patents

#13 in Okayama

#3,345 in Japan

#37,887 in the World

Okayama Prefecture

Forward Citations = 33

24 inventors:

Kenichi Ogawa (14 out of 27 patents)

Satoshi Kondo (7 out of 38 patents)

Chikara Ohto (7 out of 53 patents)

4. Norihiro Mitsukawa (4 out of 32 patents)

5. Kenji Henmi (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Okayama Prefecture. Retrieved from https://idiyas.com/company/okayama-prefecture

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]

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