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For the Inventor, By the Inventor

Itami, Japan

Sumitomo Electric Hardmetal Corp.


USPTO Granted Patents = 553



Trademarks = 12

Forward Citations = 2,007

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288 inventors (with patents filed for the assignee):

goldMedal Satoru Kukino (105 out of 133 patents)

silverMedal Shinya Imamura (78 out of 80 patents)

bronzeMedal Anongsack Paseuth (63 out of 85 patents)

4.  Katsumi Okamura (60 out of 72 patents)

5.  Susumu Okuno (57 out of 58 patents)

6.  Yasuki Kido (38 out of 52 patents)

7.  Hideaki Kanaoka (38 out of 38 patents)

8.  Takashi Harada (37 out of 64 patents)

9.  Yosuke Shimamoto (35 out of 35 patents)

10.  Yasuyuki Kanada (32 out of 40 patents)

11.  Naoki Watanobe (32 out of 32 patents)

12.  Taisuke Higashi (29 out of 29 patents)

13.  Naoki Matsuda (27 out of 27 patents)

14.  Makoto Setoyama (26 out of 34 patents)

15.  Kouki Matsubara (25 out of 25 patents)


Core Competencies:
Cutting Tool
Diamond Sintered Material
Cemented Carbide
Cubic Boron Nitride
Cutting Insert
Pressing Tool
Drill Head
Valve Sheet Processing
Tool Manufacturing
Diamond Cutting Tool
Tool Processing Method

553 patents:

1. D1107768 - Cutting tool (2025-12-30),
2. 12508661 - Drill (2025-12-30),
3. D1105185 - Cutting tool for processing valve sheet (2025-12-09),
4. 12485492 - Cutting insert and processing method (2025-12-02),
5. D1103231 - Cutting tool (2025-11-25),
6. D1103230 - Cutting tool (2025-11-25),
7. D1102498 - Cutting tool (2025-11-18),
8. 12467119 - Diamond sintered material and tool including diamond sintered material (2025-11-11),
9. D1101006 - Cutting tool (2025-11-04),
10. D1100001 - Cutting tool (2025-10-28),
11. D1100000 - Cutting tool (2025-10-28),
12. D1099999 - Cutting tool for processing valve sheet (2025-10-28),
13. 12454014 - Cemented carbide and cutting tool (2025-10-28),
14. 12447537 - Cutting insert and method of manufacturing cutting insert (2025-10-21),
15. D1098219 - Pressing tool for cutting tool (2025-10-14),
Sumitomo Electric Hardmetal Corp. is a leading global manufacturer of cutting tools & wear-resistant tools for various industries such as automotive, aerospace, and general machining. With a focus on innovation and high-quality products, Sumitomo Electric Hardmetal Corp. offers a wide range of carbide inserts, drills, end mills, and other cutting tools to meet customer demands. Visit their website to explore their product range and find solutions for your cutting tool needs.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

553 Patents

#1 in Itami

#347 in Japan

#1,709 in the World

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Itami, Japan

Sumitomo Electric Hardmetal Corp.

Forward Citations = 2,007

288 inventors:

goldMedal Satoru Kukino (105 out of 133 patents)

silverMedal Shinya Imamura (78 out of 80 patents)

bronzeMedal Anongsack Paseuth (63 out of 85 patents)

4.  Katsumi Okamura (60 out of 72 patents)

5.  Susumu Okuno (57 out of 58 patents)

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