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For the Inventor, By the Inventor

Yokohama, Japan

Okamura Corporation


USPTO Granted Patents = 430

% Expired Patents = 5.3



Trademarks = 22

Forward Citations = 8,525

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127 inventors (with patents filed for the assignee):

goldMedal Takayuki Yamamoto (37 out of 78 patents)

silverMedal Ryo Igarashi (33 out of 62 patents)

bronzeMedal Hiroshi Saotome (33 out of 49 patents)

4.  Syouichi Izawa (30 out of 30 patents)

5.  Waku Tsuchiyama (24 out of 24 patents)

6.  Alexander Hurford (23 out of 24 patents)

7.  Hiroshi Masunaga (22 out of 22 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:
Chair
Office Booth
Sliding Partition Panel
Table
Storage Furniture
Mobile Storage Cart
Backrest
Armrest
Lap Desk
Management System
Wiring Storage
Desk Partition

430 patents:

1. D1146452 - Chair (2026-09-08),
2. 12714227 - Chair (2026-08-25),
3. 12708213 - CHAIR (2026-08-18),
4. 12708200 - ASSEMBLY TYPE FIXTURE AND ASSEMBLING PART OF ASSEMBLY TYPE FIXTURE (2026-08-18),
5. D1136741 - Chair (2026-07-28),
6. D1136740 - Chair (2026-07-28),
7. 12673546 - Transmission unit and power system (2026-07-07),
8. 12654536 - Transmission unit and power system (2026-06-16),
9. D1113220 - Chair (2026-02-17),
10. D1096258 - Chair (2025-10-07),
11. D1092786 - Sliding partition panel (2025-09-09),
12. D1089712 - Sliding partition panel (2025-08-19),
13. D1087395 - Sliding partition panel (2025-08-05),
14. 12369714 - Chair (2025-07-29),
15. D1082395 - Table (2025-07-08),
Okamura Corporation, headquartered in Yokohama, Japan, specializes in the design and manufacture of innovative office furniture solutions. The company focuses on enhancing workplace environments through its diverse product range, including ergonomic chairs, office booths, sliding partition panels, tables, and storage furniture. Okamura is committed to integrating functionality with aesthetic appeal, ensuring that its offerings support productivity and comfort in modern workspaces. The organization is recognized for its dedication to quality and design excellence in the office furniture sector.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Okamura Corporation
430 Patents

#10 in Yokohama

#423 in Japan

#2,198 in the World

Yokohama, JP
Yokohama, Japan

Okamura Corporation

Forward Citations = 8,525

127 inventors:

goldMedal Takayuki Yamamoto (37 out of 78 patents)

silverMedal Ryo Igarashi (33 out of 62 patents)

bronzeMedal Hiroshi Saotome (33 out of 49 patents)

4.  Syouichi Izawa (30 out of 30 patents)

5.  Waku Tsuchiyama (24 out of 24 patents)

Please report any incorrect information to [email protected]
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