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For the Inventor, By the Inventor

Kanazawa, Japan

Ishikawa Prefecture

Calculating rank
USPTO Granted Patents = 10

% Expired Patents = 30.0


Forward Citations = 42

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40 inventors (with patents filed for the assignee):

goldMedal Kenichi Hirosaki (3 out of 3 patents)

silverMedal Masahiro Takano (2 out of 4 patents)

bronzeMedal Mikio Takimoto (2 out of 5 patents)

4.  Takashi Yamamoto (2 out of 2 patents)

5.  Kazuo Tsukabayashi (2 out of 2 patents)

6.  Kazuo Morohashi (2 out of 13 patents)

7.  Saburo Hamade (2 out of 2 patents)

8.  Takashi Yoshida (2 out of 2 patents)

9.  Kazuaki Amaoka (1 out of 4 patents)

10.  Yoshihiro Iwano (1 out of 40 patents)

11.  Takayuki Mori (1 out of 2 patents)

12.  Wataru Okumura (1 out of 1 patent)

13.  Daisuke Mori (1 out of 2 patents)

14.  Yuta Yoshida (1 out of 2 patents)

15.  Takuya Nagata (1 out of 1 patent)


10 patents:

1. 11865637 - Laser machining apparatus and laser machining method (2024-01-09),
2. 11502235 - Thermoelectric material and thermoelectric module (2022-11-15),
3. 11235536 - Method for welding synthetic resin member (2022-02-01),
4. 9099640 - Transducer for ultrasonic motor (2015-08-04),
5. 8531091 - Apparatus for holding piezoelectric vibrator (2013-09-10),
6. 7038658 - Input device (2006-05-02),
7. 5511395 - Carbon fiber fabric spreading apparatus having a freely rotatable (1996-04-30),
8. 5016451 - Apparatus for treating carbon fiber fabrics (1991-05-21),
9. 4986316 - Package feed for a prescribed weft length of carbon fiber (1991-01-22),
10. 4913861 - Process for preparing carbon fiber-reinforced composite materials (1990-04-03),
Company Overview
Ishikawa Prefecture, located in Japan, is known for its rich cultural heritage and diverse industries. The region specializes in traditional crafts, including Kutani ceramics and Kaga Yuzen silk dyeing, while also fostering innovation in technology and manufacturing. Key sectors include advanced materials, environmental technologies, and information technology, contributing to the local economy. Ishikawa is also recognized for its commitment to sustainable development and research initiatives that enhance its industrial capabilities and promote regional growth.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

10 Patents

#5 in Kanazawa

#4,406 in Japan

#56,119 in the World

Kanazawa, JP
Kanazawa, Japan

Ishikawa Prefecture

Forward Citations = 42

40 inventors:

goldMedal Kenichi Hirosaki (3 out of 3 patents)

silverMedal Masahiro Takano (2 out of 4 patents)

bronzeMedal Mikio Takimoto (2 out of 5 patents)

4.  Takashi Yamamoto (2 out of 2 patents)

5.  Kazuo Tsukabayashi (2 out of 2 patents)

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