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For the Inventor, By the Inventor

Chiba, Japan

Kikuchi Co., Ltd.


USPTO Granted Patents = 13

% Expired Patents = 38.5



Forward Citations = 74

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30 inventors (with patents filed for the assignee):

goldMedal Takao Minagawa (6 out of 6 patents)

silverMedal Yutaka Miyamoto (6 out of 6 patents)

bronzeMedal Hisao Hoshino (5 out of 5 patents)

4.  Satoshi Shimizu (3 out of 14 patents)

5.  Kaori Ojima (3 out of 3 patents)

6.  Iwakichi Ogawa (3 out of 47 patents)

7.  Kenetsu Kikuchi (3 out of 3 patents)

8.  Shingo Shikuwa (3 out of 3 patents)

9.  Norihiko Kikuchi (3 out of 3 patents)

10.  Kenji Kaneko (3 out of 24 patents)

11.  Shinichi Inagaki (2 out of 2 patents)

12.  Tatsushi Yurudume (2 out of 2 patents)

13.  Shigeki Kishihara (2 out of 2 patents)

14.  Hiroyuki Komatsu (2 out of 15 patents)

15.  Kiyoyuki Fukui (2 out of 6 patents)


13 patents:

1. 7624486 - Button manufacturing device (2009-12-01),
2. 7509891 - Button making device, button, and method of mounting pressing mold in button making device (2009-03-31),
3. 7423233 - Butt welding device and butt welding method (2008-09-09),
4. 7365290 - Method and device for thin plate article induction heating, and thin plate article (2008-04-29),
5. 7361015 - Clamp device and clamp method for heat-treated article (2008-04-22),
6. 7307235 - Butt welding apparatus, butt welding method, and butt welded product (2007-12-11),
7. 7108044 - Method and apparatus for producing mold (2006-09-19),
8. 7070228 - Press molding and its high frequency quenching method and its high frequency quenching system (2006-07-04),
9. 7069678 - Badge and badge manufacturing device (2006-07-04),
10. 6953077 - Method and apparatus for producing mold (2005-10-11),
11. 6929308 - Vehicle door and manufacture thereof (2005-08-16),
12. 6776449 - Door for vehicle and its manufacturing method (2004-08-17),
13. 6518535 - Device and method for seaming welding (2003-02-11),
Company Overview
Kikuchi Co., Ltd., based in Chiba, Japan, specializes in the development and manufacturing of advanced materials and components for various industries. The company focuses on innovative solutions in fields such as electronics, automotive, and industrial machinery. With a commitment to research and technology, Kikuchi aims to enhance product performance and sustainability. Its expertise in material science positions it as a key player in driving technological advancements within its sectors.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Kikuchi Co., Ltd. USPTO Patent Assignee Logo
13 Patents

#47 in Chiba

#3,749 in Japan

#45,039 in the World

Chiba, JP
Chiba, Japan

Kikuchi Co., Ltd.

Forward Citations = 74

30 inventors:

goldMedal Takao Minagawa (6 out of 6 patents)

silverMedal Yutaka Miyamoto (6 out of 6 patents)

bronzeMedal Hisao Hoshino (5 out of 5 patents)

4.  Satoshi Shimizu (3 out of 14 patents)

5.  Kaori Ojima (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kikuchi Co., Ltd.. Retrieved from https://idiyas.com/company/kikuchi-company

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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