% Expired Patents = 100.0

EPO Patents = 2

Forward Citations = 3

Loading Chart...

25 inventors (with patents filed for the assignee):

Isao Yamada (2 out of 15 patents)

Noriaki Toyoda (2 out of 4 patents)

Takashi Hayakawa (1 out of 15 patents)

4. Takeo Watanabe (1 out of 2 patents)

5. Masamichi Hayakawa (1 out of 4 patents)

6. Yoshitaka Komuro (1 out of 43 patents)

7. Koichi Mori (1 out of 12 patents)

8. Akira Nambu (1 out of 4 patents)

9. Masaya Ehira (1 out of 5 patents)

10. Shigeo Kashiwai (1 out of 1 patent)

11. Masafumi Fukuzumi (1 out of 1 patent)

12. Masaki Narushima (1 out of 15 patents)

13. Kosuke Sasai (1 out of 12 patents)

14. Kenichi Hara (1 out of 5 patents)

15. Akane Hashiya (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 9449844 - Etching method, etching apparatus, and storage medium (2016-09-20),

2. 9334559 - Powder, sintered body and sputtering target, each containing elements of Cu, In, Ga and Se, and method for producing the powder (2016-05-10),

3. 8510125 - Database system, program, and information processing method (2013-08-13),

4. 8168946 - Charged particle separation apparatus and charged particle bombardment apparatus (2012-05-01),

5. 7858287 - Photosensitive resin, and photosensitive composition (2010-12-28),

6. 7126194 - Method for removing impurities of a semiconductor wafer, semiconductor wafer assembly, and semiconductor device (2006-10-24),

Company Overview

Hyogo Prefecture is located in the Kansai region of Japan. It is known for its diverse landscapes, including the scenic Seto Inland Sea coast, Rokko Mountain range, and traditional Japanese hot springs. The prefecture is also home to the bustling port city of Kobe and the historic Himeji Castle, a UNESCO World Heritage site. Hyogo is famous for its sake breweries, Kobe beef, and vibrant cultural festivals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#102 in Hyogo

#5,990 in Japan

Hyogo, Japan

Hyogo Prefecture

Forward Citations = 3

25 inventors:

Isao Yamada (2 out of 15 patents)

Noriaki Toyoda (2 out of 4 patents)

Takashi Hayakawa (1 out of 15 patents)

4. Takeo Watanabe (1 out of 2 patents)

5. Masamichi Hayakawa (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hyogo Prefecture. Retrieved from https://idiyas.com/company/hyogo-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]

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]