Forward Citations = 19

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11 inventors (with patents filed for the assignee):

Tetsuo Murakami (1 out of 3 patents)

Kimitaka Otake (1 out of 2 patents)

Tamio Otani (1 out of 15 patents)

4. Masao Nishigai (1 out of 4 patents)

5. Yasuhiko Kanaya (1 out of 26 patents)

6. Takanobu Sato (1 out of 1 patent)

7. Mikio Kobayashi (1 out of 1 patent)

8. Satoru Togawa (1 out of 1 patent)

9. Thuneo Orui (1 out of 1 patent)

10. Takayuki Nagasawa (1 out of 1 patent)

11. Akira Koshio (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6055892 - Work feeder for a vertical machine tool with movable spindle (2000-05-02),

2. 5123149 - Turret tool post for machine tool and apparatus for controlling indexing (1992-06-23),

3. 5011345 - Contour machining method and apparatus for printed circuit board (1991-04-30),

Hitachi Seiko Co., Ltd. is a Japanese company specializing in the manufacturing and sales of high-quality precision press dies for a wide range of industries. With over 50 years of experience, Hitachi Seiko has established itself as a reliable and innovative supplier of tooling solutions. Their expertise includes press dies for automotive parts, electronic components, medical devices, and more. Visit their website for more information and to explore their extensive product portfolio.

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#2 in Abiko

#8,780 in Japan

Abiko, Japan

Hitachi Seiko Co., Ltd.