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For the Inventor, By the Inventor

Toyokawa, Japan

Osg Corporation


USPTO Granted Patents = 133

% Expired Patents = 18.8


Trademarks = 21

Forward Citations = 765

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122 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.  Takahiro Yamamoto (6 out of 7 patents)

11.  Kazumitsu Harada (6 out of 6 patents)

12.  Tomonori Yoda (6 out of 6 patents)

13.  Takayuki Matsushita (6 out of 6 patents)

14.  Wataru Aoki (6 out of 7 patents)

15.  Tamotsu Nagai (5 out of 5 patents)


Core Competencies:
Thread Forming Tap
Rotary Cutting Tool
Cutting Insert
Hard Coating
Drill
Indexable Tool
Tapered End Mill
Reamer
Plastic Deformation Tool
Hard Film
Throwaway Tool
DLC-Coated Tool

133 patents:

1. 12728467 - Drill (2026-09-08),
2. 12703030 - End mill (2026-08-11),
3. 12649191 - Drill (2026-06-09),
4. 12447542 - Method for chamfering toothed gear (2025-10-21),
5. 12162084 - Rotary cutting tool (2024-12-10),
6. 12097564 - Ball end mill and cutting insert (2024-09-24),
7. 12042873 - Thread forming tap (2024-07-23),
8. 12023719 - Rolling die and method for manufacturing same (2024-07-02),
9. 11986905 - Diamond smoothing method (2024-05-21),
10. 11986896 - Thread forming tap (2024-05-21),
11. 11865626 - Drill (2024-01-09),
12. 11826844 - Thread forming tap for ballscrew (2023-11-28),
13. 11623286 - Tapered end mill (2023-04-11),
14. 11453072 - Thread milling cutter (2022-09-27),
15. 11447875 - 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 - Sep 15 2026

Osg Corporation
133 Patents

#1 in Toyokawa

#930 in Japan

#6,048 in the World

Toyokawa, JP
Toyokawa, Japan

Osg Corporation

Forward Citations = 765

122 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)

Please report any incorrect information to [email protected]
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