EPO Patents = 2

Forward Citations = 177

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19 inventors (with patents filed for the assignee):

Kenichi Hirano (4 out of 4 patents)

Toshio Hashimoto (3 out of 4 patents)

Yasuyuki Shingu (3 out of 3 patents)

4. Koichi Ohba (2 out of 2 patents)

5. Takashi Yoshioka (1 out of 17 patents)

6. Susumu Yoshino (1 out of 62 patents)

7. Akira Ohashi (1 out of 2 patents)

8. Taku Nagano (1 out of 1 patent)

9. Shiro Hattori (1 out of 1 patent)

10. Tsuyoshi Kitamira (1 out of 1 patent)

11. Yoshizumi Yasuda (1 out of 1 patent)

12. Nobuaki Wada (1 out of 1 patent)

13. Haruhisa Watai (1 out of 2 patents)

14. Yukio Suzuki (1 out of 1 patent)

15. Eiji Mitsugi (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6968859 - Electromagnetic operating device (2005-11-29),

2. 6748739 - Hydraulic power system (2004-06-15),

3. 6592336 - Hydraulic pump with a built-in electric motor (2003-07-15),

4. 4983263 - Zincate type zinc alloy electroplating bath (1991-01-08),

5. 4801247 - Variable displacement piston pump (1989-01-31),

6. 4796661 - Proportional electro-hydraulic pressure control valve (1989-01-10),

7. 4724865 - Control circuit for proportional electro-hydraulic fluid control valves (1988-02-16),

Yuken Kogyo Kabushiki Kaisha is a Japanese company known for its expertise in hydraulic equipment and systems. With a history dating back to 1924, Yuken has built a reputation for high-quality products and innovative solutions. The company offers a wide range of hydraulic components for various industries, including industrial machinery, construction, and agriculture. Yuken is committed to providing reliable and efficient products to meet the needs of its customers worldwide.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

7 Patents

#9 in Fujisawa

#5,303 in Japan

Fujisawa, Japan

Yuken Kogyo Kabushiki Kaisha