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For the Inventor, By the Inventor

Tokyo, Japan

Oiles Corporation


USPTO Granted Patents = 268



Trademarks = 10

Forward Citations = 1,314

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254 inventors (with patents filed for the assignee):

goldMedal Ryohei Kaneko (35 out of 35 patents)

silverMedal Akihiko Okimura (23 out of 23 patents)

bronzeMedal Yoshiteru Igarashi (22 out of 22 patents)

4.  Kouichi Morishige (22 out of 23 patents)

5.  Shuichi Kubota (18 out of 22 patents)

6.  Katsunori Saito (15 out of 15 patents)

7.  Noboru Nakagawa (14 out of 14 patents)

8.  Takashi Horiguchi (14 out of 23 patents)

9.  Masamitsu Kojima (14 out of 16 patents)

10.  Kouhei Kurose (13 out of 13 patents)

11.  Ikuo Shimoda (13 out of 16 patents)

12.  Naohiro Horita (12 out of 12 patents)

13.  Hidetoshi Kaida (11 out of 11 patents)

14.  Yoshikazu Sakairi (10 out of 10 patents)

15.  Tadashi Watai (10 out of 10 patents)


Core Competencies:
Rack And Pinion Steering
Aerostatic Bearing
Rotary Damper
Sliding Member
Thrust Bearing
Seismic Isolation
Synthetic Resin Composition
Multi-Layer Sliding Member
Slide Bearing
Grease Composition
Trimming Press Processing

268 patents:

1. 12485953 - Rack guide (2025-12-02),
2. 12480068 - Grease composition and rack-and-pinion-type steering device filled with the same grease composition (2025-11-25),
3. 12429090 - Gas restriction structure constituting aerostatic bearing, and aerostatic bearing (2025-09-30),
4. 12292097 - Rotary damper (2025-05-06),
5. 12173752 - Resin composition for sliding member, and sliding member (2024-12-24),
6. 12162455 - Rotary damper, and brake system (2024-12-10),
7. 11878741 - Multi-layer sliding member and automobile rack-and-pinion steering apparatus using same (2024-01-23),
8. 11878740 - Rack bushing and steering device (2024-01-23),
9. 11872618 - Floating cutter unit and trimming press processing device (2024-01-16),
10. 11577298 - Floating cutter unit and trimming press processing device (2023-02-14),
11. 11548546 - Bearing and steering mechanism (2023-01-10),
12. 11493108 - Damper and operation unit (2022-11-08),
13. 11448257 - Thrust sliding bearing (2022-09-20),
14. 11448256 - Slide bearing and method for manufacturing same (2022-09-20),
15. 11313412 - Slide bearing (2022-04-26),
OILES CORPORATION is a leading manufacturer of high-performance, maintenance-free self-lubricated bearings and precision-molded products. With over 60 years of experience, OILES delivers innovative solutions to various industries, including automotive, industrial machinery, construction, and aerospace. Our products offer superior reliability, extended product life, and reduced maintenance costs. We are committed to providing exceptional customer service and contributing to a sustainable future through our environmentally-friendly products and manufacturing processes.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

268 Patents

#257 in Tokyo

#555 in Japan

#3,169 in the World

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Tokyo, Japan

Oiles Corporation

Forward Citations = 1,314

254 inventors:

goldMedal Ryohei Kaneko (35 out of 35 patents)

silverMedal Akihiko Okimura (23 out of 23 patents)

bronzeMedal Yoshiteru Igarashi (22 out of 22 patents)

4.  Kouichi Morishige (22 out of 23 patents)

5.  Shuichi Kubota (18 out of 22 patents)

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