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Forward Citations = 870

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14 inventors (with patents filed for the assignee):

Masaru Maruyama (6 out of 6 patents)

Masao Ohto (4 out of 4 patents)

Tetsuo Sekine (4 out of 4 patents)

4. Masataka Tanaka (3 out of 3 patents)

5. Yukihiko Tamai (2 out of 3 patents)

6. Kazuyuki Shimomura (2 out of 3 patents)

7. Hiroshi Takahashi (2 out of 117 patents)

8. Yuji Itai (1 out of 1 patent)

9. Toshiyuki Irie (1 out of 1 patent)

10. Hideki Watanabe (1 out of 1 patent)

11. Takashi Kojima (1 out of 1 patent)

12. Chikara Nakao (1 out of 1 patent)

13. Takefumi Daido (1 out of 7 patents)

14. Koji Isobe (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 6471711 - Device for guiding puncture needle (2002-10-29),

2. 6110154 - Valve and valved trocar jacket tube (2000-08-29),

3. 6077288 - Valved trocar jacket tube (2000-06-20),

4. 5505211 - Biopsy needles (1996-04-09),

5. 5209239 - Apparatus for cystographic inspection (1993-05-11),

6. 5026350 - Set of double needles for injecting liquid medicine (1991-06-25),

7. 4846799 - Set of double needles for injecting liquid medicine (1989-07-11),

8. 4643196 - Biopsy needle set (1987-02-17),

Hakko Electric Machine Works, Co. Ltd. is a leading Japanese manufacturer of soldering equipment, desoldering tools, and related products for the electronics industry. With over 70 years of experience, Hakko is known for its high-quality and reliable products that are used by professionals and hobbyists worldwide. The company is committed to innovation and continuous improvement in its products to meet the evolving needs of the industry.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

8 Patents

#6 in Nagano-ken

#4,916 in Japan

Nagano-ken, Japan

Hakko Electric Machine Works, Co. Ltd.