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For the Inventor, By the Inventor

Yokohama, Japan

Okamura Corporation


USPTO Granted Patents = 421



Trademarks = 30

Forward Citations = 8,233

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117 inventors (with patents filed for the assignee):

goldMedal Takayuki Yamamoto (37 out of 77 patents)

silverMedal Ryo Igarashi (33 out of 62 patents)

bronzeMedal Hiroshi Saotome (33 out of 49 patents)

4.  Syouichi Izawa (29 out of 29 patents)

5.  Waku Tsuchiyama (24 out of 24 patents)

6.  Alexander Hurford (23 out of 24 patents)

7.  Hiroshi Masunaga (21 out of 21 patents)

8.  Haruhiko Kitajima (21 out of 21 patents)

9.  Ryou Igarashi (18 out of 18 patents)

10.  Eisuke Hara (15 out of 16 patents)

11.  Naho Ono (14 out of 14 patents)

12.  Fabrizio Giugiaro (14 out of 18 patents)

13.  Seiji Koguma (14 out of 14 patents)

14.  Tetsuya Narita (10 out of 10 patents)

15.  Satoshi Nagamitsu (10 out of 10 patents)


Core Competencies:
Office Booth
Sliding Partition Panel
Chair Design
Storage Furniture
Load Support Structure
Backrest Design
Armrest Innovation
Mobile Storage Cart
Table Design
Management Control System
Lap Desk
Furniture Attachment Structures

421 patents:

1. D1096258 - Chair (2025-10-07),
2. D1092786 - Sliding partition panel (2025-09-09),
3. D1089712 - Sliding partition panel (2025-08-19),
4. D1087395 - Sliding partition panel (2025-08-05),
5. 12369714 - Chair (2025-07-29),
6. D1082395 - Table (2025-07-08),
7. D1039894 - Chair (2024-08-27),
8. D1039893 - Chair (2024-08-27),
9. 11891824 - Booth (2024-02-06),
10. D1007168 - Chair (2023-12-12),
11. D1005031 - Chair (2023-11-21),
12. D993453 - Office booth (2023-07-25),
13. D990202 - Office booth (2023-06-27),
14. D990190 - Lap desk (2023-06-27),
15. D989981 - Office booth (2023-06-20),
OKAMURA CORPORATION is a Japanese company specializing in the design, manufacturing, and distribution of office furniture and equipment. With a strong emphasis on ergonomics and functionality, OKAMURA provides innovative solutions for workplaces around the world. Their products range from chairs, desks, and storage units to collaborative solutions and space planning services. With a commitment to sustainable and environmentally friendly practices, OKAMURA aims to create comfortable and productive work environments for individuals and organizations.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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421 Patents

#7 in Yokohama

#415 in Japan

#2,173 in the World

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Yokohama, Japan

Okamura Corporation

Forward Citations = 8,233

117 inventors:

goldMedal Takayuki Yamamoto (37 out of 77 patents)

silverMedal Ryo Igarashi (33 out of 62 patents)

bronzeMedal Hiroshi Saotome (33 out of 49 patents)

4.  Syouichi Izawa (29 out of 29 patents)

5.  Waku Tsuchiyama (24 out of 24 patents)

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