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For the Inventor, By the Inventor

Toyokawa, Japan

Osg Corporation


USPTO Granted Patents = 130



Trademarks = 29

Forward Citations = 747

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120 inventors (with patents filed for the assignee):

goldMedal Jiro Osawa (21 out of 21 patents)

silverMedal Masatoshi Sakurai (11 out of 11 patents)

bronzeMedal Tasuku Itoh (10 out of 10 patents)

4.  Mei Wang (9 out of 9 patents)

5.  Takayuki Nakajima (9 out of 9 patents)

6.  Hiroaki Sugita (8 out of 8 patents)

7.  Yasuyuki Endoh (8 out of 8 patents)

8.  Hiroyuki Hanyu (7 out of 7 patents)

9.  Takaomi Toihara (7 out of 7 patents)

10.  Kazumitsu Harada (6 out of 6 patents)

11.  Tomonori Yoda (6 out of 6 patents)

12.  Takayuki Matsushita (6 out of 6 patents)

13.  Wataru Aoki (6 out of 7 patents)

14.  Takahiro Yamamoto (5 out of 6 patents)

15.  Tamotsu Nagai (5 out of 5 patents)


Core Competencies:
Chamfering Tools
Rotary Cutting Tools
Ball End Mills
Thread Forming Taps
Rolling Dies
Diamond Smoothing Methods
Tapered End Mills
Indexable Cutting Tools
Hard Coatings
Replaceable-Tip Cutting Tools
Taper Thread-Cutting Taps
Reamers

130 patents:

1. 12447542 - Method for chamfering toothed gear (2025-10-21),
2. 12162084 - Rotary cutting tool (2024-12-10),
3. 12097564 - Ball end mill and cutting insert (2024-09-24),
4. 12042873 - Thread forming tap (2024-07-23),
5. 12023719 - Rolling die and method for manufacturing same (2024-07-02),
6. 11986905 - Diamond smoothing method (2024-05-21),
7. 11986896 - Thread forming tap (2024-05-21),
8. 11865626 - Drill (2024-01-09),
9. 11826844 - Thread forming tap for ballscrew (2023-11-28),
10. 11623286 - Tapered end mill (2023-04-11),
11. 11453072 - Thread milling cutter (2022-09-27),
12. 11447875 - Hard coating and hard-coating-covered member (2022-09-20),
13. 11447873 - Hard coating and hard-coating-covered member (2022-09-20),
14. 11447872 - Hard coating and hard-coating-covered member (2022-09-20),
15. 11447855 - Hard coating and hard-coating-covered member (2022-09-20),
OSG CORPORATION is a global cutting tool company that specializes in producing high-quality precision tools and accessories for various industries. With a strong focus on research and development, OSG CORPORATION is committed to providing innovative solutions to meet the evolving demands of its customers. Through its cutting-edge technology and extensive expertise, OSG CORPORATION strives to enhance productivity and efficiency for businesses worldwide.
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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130 Patents

#1 in Toyokawa

#921 in Japan

#5,994 in the World

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Toyokawa, Japan

Osg Corporation

Forward Citations = 747

120 inventors:

goldMedal Jiro Osawa (21 out of 21 patents)

silverMedal Masatoshi Sakurai (11 out of 11 patents)

bronzeMedal Tasuku Itoh (10 out of 10 patents)

4.  Mei Wang (9 out of 9 patents)

5.  Takayuki Nakajima (9 out of 9 patents)

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