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For the Inventor, By the Inventor

Fukushima, Japan

Tungaloy Corporation


USPTO Granted Patents = 236



Trademarks = 7

Forward Citations = 410

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142 inventors (with patents filed for the assignee):

goldMedal Ryuichi Saji (27 out of 27 patents)

silverMedal Takahiro Aso (16 out of 16 patents)

bronzeMedal Satoru Yoshida (16 out of 16 patents)

4.  Yusuke Hirano (15 out of 15 patents)

5.  Hiroyuki Satoh (12 out of 84 patents)

6.  Naoyuki Fukushima (11 out of 11 patents)

7.  Takao Katagiri (10 out of 10 patents)

8.  Yuki Oikawa (8 out of 8 patents)

9.  Shigeki Tanaka (8 out of 8 patents)

10.  Yasutake Sasaki (8 out of 8 patents)

11.  Kedar Suresh Bhagath (8 out of 8 patents)

12.  Yusuke Suzuki (7 out of 7 patents)

13.  Hikaru Shiroma (6 out of 6 patents)

14.  Kinya Takahashi (6 out of 6 patents)

15.  Haruki Kumoi (6 out of 6 patents)


Core Competencies:
Cubic Boron Nitride
Cutting Tool
Coated Cutting Tool
Cutting Insert
Indexable Rotary Cutting Tool
Drilling Tool
Milling Tool
Tool Body
Guide Pad
Gun Drill
Friction Material
Brake Pad

236 patents:

1. 12479772 - Cubic boron nitride sintered body and coated cubic boron nitride sintered body (2025-11-25),
2. 12459148 - Cutting tool (2025-11-04),
3. 12454013 - Coated cutting tool (2025-10-28),
4. 12427582 - Cutting insert and cutting tool (2025-09-30),
5. 12377470 - Coated cutting tool (2025-08-05),
6. 12365037 - Guide pad and gun drill having guide pad (2025-07-22),
7. 12343808 - Cutting insert, indexable rotary cutting tool, and body of the same (2025-07-01),
8. 12337395 - Shank and cutting tool having the shank (2025-06-24),
9. 12269097 - Coated cutting tool (2025-04-08),
10. 12109638 - Cutting insert and gear cutter (2024-10-08),
11. 12109627 - Coated cutting tool (2024-10-08),
12. 12109626 - Coated cutting tool (2024-10-08),
13. 12090558 - Cutting insert (2024-09-17),
14. 12083605 - Cutting tool (2024-09-10),
15. 12083604 - Cutting tool (2024-09-10),
Tungaloy Corporation is a leading manufacturer of cutting tools, primarily for the metalworking industry. With a rich history spanning over 80 years, Tungaloy offers a wide range of high-quality products and solutions to help enhance productivity and efficiency for its global customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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236 Patents

#2 in Fukushima

#605 in Japan

#3,513 in the World

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Fukushima, Japan

Tungaloy Corporation

Forward Citations = 410

142 inventors:

goldMedal Ryuichi Saji (27 out of 27 patents)

silverMedal Takahiro Aso (16 out of 16 patents)

bronzeMedal Satoru Yoshida (16 out of 16 patents)

4.  Yusuke Hirano (15 out of 15 patents)

5.  Hiroyuki Satoh (12 out of 84 patents)

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