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For the Inventor, By the Inventor

Osaka, Japan

Itoki Kosakusho Co., Ltd.

Calculating rank
USPTO Granted Patents = 9

Forward Citations = 205

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14 inventors (with patents filed for the assignee):

goldMedal Nobuyuki Oku (2 out of 2 patents)

silverMedal Yoichi Tabata (2 out of 2 patents)

bronzeMedal Shunicti Takamatsu (2 out of 2 patents)

4.  Tatsuo Fujii (1 out of 22 patents)

5.  Shigeki Tsuchida (1 out of 1 patent)

6.  Motohiro Nakagawa (1 out of 1 patent)

7.  Sabarou Sumi (1 out of 1 patent)

8.  Hiroshi Iwabuchi (1 out of 4 patents)

9.  Katsunori Hama (1 out of 4 patents)

10.  Hiroji Kubo (1 out of 1 patent)

11.  Shunichi Takamatsu (1 out of 6 patents)

12.  Yoshiaki Shishido (1 out of 1 patent)

13.  Akihiro Okada (1 out of 1 patent)

14.  Tugumi Matimura (1 out of 1 patent)


9 patents:

1. 5080318 - Tilting control assembly for chair (1992-01-14),
2. 4893884 - Wall cabinet (1990-01-16),
3. 4555828 - Guiding system for movable suspended partition walls (1985-12-03),
4. 4515508 - Article automatic storage and retrieval system (1985-05-07),
5. 4383789 - Article automatic storage and retrieval apparatus (1983-05-17),
6. 4219296 - Automatic storage and retrieval apparatus for individual file folders (1980-08-26),
7. 4186976 - Fabricated desk (1980-02-05),
8. 4176996 - Automatic positioning system for a carriage in a storage and retrieval (1979-12-04),
9. 4175901 - Automatic commodity storing apparatus (1979-11-27),
Company Overview
Itoki Kosakusho Co., Ltd. is a Japanese company specializing in precision sheet metal fabrication and machining. With over 70 years of experience, they provide high-quality products for various industries including automotive, electronics, and medical equipment. Itoki Kosakusho is committed to excellence in craftsmanship and customer satisfaction.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#501 in Osaka

#4,704 in Japan

Osaka, JP
Osaka, Japan

Itoki Kosakusho Co., Ltd.

Forward Citations = 205

14 inventors:

goldMedal Nobuyuki Oku (2 out of 2 patents)

silverMedal Yoichi Tabata (2 out of 2 patents)

bronzeMedal Shunicti Takamatsu (2 out of 2 patents)

4.  Tatsuo Fujii (1 out of 22 patents)

5.  Shigeki Tsuchida (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Itoki Kosakusho Co., Ltd.. Retrieved from https://idiyas.com/company/itoki-kosakusho-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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