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For the Inventor, By the Inventor

Niwa-gun, Japan

Aoyama Seisakusho Co., Ltd.


USPTO Granted Patents = 72



Trademarks = 6

Forward Citations = 362

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111 inventors (with patents filed for the assignee):

goldMedal Yukinori Fujimoto (14 out of 14 patents)

silverMedal Hiromichi Mizuno (13 out of 14 patents)

bronzeMedal Kazuhiro Koga (8 out of 8 patents)

4.  Shigeki Matsunami (8 out of 8 patents)

5.  Masataka Mizuno (8 out of 8 patents)

6.  Yoshihiro Murase (8 out of 8 patents)

7.  Ryuji Utsuno (7 out of 7 patents)

8.  Keigo Kato (6 out of 6 patents)

9.  Masaaki Ide (6 out of 11 patents)

10.  Naoki Hoshino (5 out of 5 patents)

11.  Sadayoshi Hasegawa (5 out of 5 patents)

12.  Hideki Kakamu (5 out of 6 patents)

13.  Hiroshi Kazino (5 out of 16 patents)

14.  Keiichiro Masui (4 out of 4 patents)

15.  Tsuyoshi Kojima (4 out of 4 patents)


Core Competencies:
Bolt
Nut
Fastening Structure
Crimping Method
Piercing Nut
Self-Tapping Screw
Seal Washer
Anti-Seizing Nut
Fastening Tool
Caulking Device
Spool Valve
Water-Proof Grommet

72 patents:

1. 12055176 - Bolt (2024-08-06),
2. 12000422 - Crimp securing structure of bolt, crimp securing method for crimp bolt, and crimping die (2024-06-04),
3. 11988238 - Bolt and fastening structure (2024-05-21),
4. 11885366 - Piercing nut and method for fixing the same to inner surface of mating member having closed sectional shape (2024-01-30),
5. 11879492 - Nut and fixing structure of nut (2024-01-23),
6. 11878380 - Device and method for fixing nut to inner surface of pipe member (2024-01-23),
7. 11773886 - Article fixing device (2023-10-03),
8. 11725685 - Caulking bolt (2023-08-15),
9. 11719273 - Coating film peeling nut (2023-08-08),
10. 11639735 - Fastener (2023-05-02),
11. 11242882 - Staking bolt (2022-02-08),
12. 11111946 - Rust proofing treatment liquid for threaded part, method for producing rust-proofed threaded part, and rust-proofed threaded part (2021-09-07),
13. 11015630 - Method for attaching nut and collar to plate material and attachment structure of nut and collar to plate material (2021-05-25),
14. 10804521 - Battery terminal (2020-10-13),
15. 10669604 - Bolt (2020-06-02),
Aoyama Seisakusho Co., Ltd. is a leading manufacturing company specializing in various industrial products. With a rich history spanning over several decades, they have established themselves as a reliable and innovative provider of high-quality solutions. Aoyama Seisakusho is committed to delivering excellence in their products, ensuring customer satisfaction, and constantly improving their manufacturing processes to meet industry standards.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

72 Patents

#2 in Niwa-gun

#1,357 in Japan

#10,091 in the World

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Niwa-gun, Japan

Aoyama Seisakusho Co., Ltd.

Forward Citations = 362

111 inventors:

goldMedal Yukinori Fujimoto (14 out of 14 patents)

silverMedal Hiromichi Mizuno (13 out of 14 patents)

bronzeMedal Kazuhiro Koga (8 out of 8 patents)

4.  Shigeki Matsunami (8 out of 8 patents)

5.  Masataka Mizuno (8 out of 8 patents)

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