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Forward Citations = 33

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22 inventors (with patents filed for the assignee):

Satoru Aida (3 out of 3 patents)

Ryo Kurosawa (2 out of 2 patents)

Kazushi Goi (2 out of 2 patents)

4. Fumihiko Hattori (2 out of 2 patents)

5. Takahiro Sekine (2 out of 2 patents)

6. Hiroyuki Kariya (2 out of 2 patents)

7. Shuichi Ono (1 out of 8 patents)

8. Takanori Kume (1 out of 14 patents)

9. Masashi Yokoyama (1 out of 12 patents)

10. Tadao Etani (1 out of 9 patents)

11. Mitsuaki Kawabata (1 out of 1 patent)

12. Hideo Soyama (1 out of 1 patent)

13. Yasuhiro Kayano (1 out of 1 patent)

14. Takayuki Yamaguchi (1 out of 2 patents)

15. Tomio Higuchi (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12115593 - Method for manufacturing shaft (2024-10-15),

2. 12103100 - Method for manufacturing shaft (2024-10-01),

3. 5740661 - Method and apparatus of producing sheet wrapping body (1998-04-21),

4. 5236300 - Stacking and forwarding apparatus (1993-08-17),

5. 4695007 - Apparatus for continuously supplying sheets from supply rolls (1987-09-22),

6. 4672796 - Control method of stop waiting operation in collective packing machine (1987-06-16),

7. 4008555 - Apparatus for piling rod-shaped articles in a container (1977-02-22),

Sanjo Machine Works, Ltd. is a leading manufacturer of high precision machining tools and equipment. With over 60 years of experience in the industry, we specialize in producing custom-made machinery for a wide range of applications. Our commitment to innovation and quality has earned us a reputation for excellence in the global market.

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Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

7 Patents

#16 in Niigata

#5,300 in Japan

Niigata, Japan

Sanjo Machine Works, Ltd.