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Yaskawa Electric Mfg. Co. Ltd.

USPTO Granted Patents = 17

Forward Citations = 243

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38 inventors (with patents filed for the assignee):

Satoru Nio (3 out of 6 patents)

Takeo Suzuki (2 out of 18 patents)

Toshiro Kisakibaru (2 out of 11 patents)

4. Yasuhiko Kaku (2 out of 26 patents)

5. Richard L Pratt (2 out of 2 patents)

6. Kazunori Ohuchi (2 out of 2 patents)

7. Tsuguo Gotoh (2 out of 2 patents)

8. Yoshihiro Yurita (2 out of 3 patents)

9. Hideharu Zenpo (2 out of 3 patents)

10. Shinobu Sato (2 out of 4 patents)

11. Toyoji Hamashima (2 out of 4 patents)

12. Yoichi Yamamoto (1 out of 11 patents)

13. Craig D Dewey (1 out of 3 patents)

14. Yoshito Kato (1 out of 15 patents)

15. Keith O Jurkowski (1 out of 4 patents)

17 patents: Sort by Forward Citations

1. 5027049 - Method for increasing the speed of an alternating current motor (1991-06-25),

2. 4965847 - Method and apparatus for detecting deviation of motor speed from (1990-10-23),

3. 4953053 - Method and apparatus for detecting mechanical overload of a hoist (1990-08-28),

4. 4947088 - Method and apparatus for controlling reel tension (1990-08-07),

5. 4789943 - Thread cutting control method (1988-12-06),

6. 4761596 - Method of detecting and controlling work start point of robot (1988-08-02),

7. 4745563 - Method of detecting the speed of a motor (1988-05-17),

8. 4743822 - Servo motor control method and apparatus (1988-05-10),

9. 4720661 - Method and apparatus for controlling reel tension (1988-01-19),

10. 4677276 - Method of welding robot control which controls the three basic axes of a (1987-06-30),

11. 4590577 - Welding robot controlling method (1986-05-20),

12. 4529352 - Cable support of a robot (1985-07-16),

13. 4507042 - Cable support of a robot (1985-03-26),

14. 4492906 - Electric motor (1985-01-08),

15. 4488023 - Rotary-arc type gas-filled switch (1984-12-11),

Yaskawa Electric Mfg. Co. Ltd. is a Japanese manufacturer of servos, motion controllers, AC motor drives, switches and industrial robots. The company has a long history of providing innovative and reliable products for industrial automation, offering cutting-edge solutions for a wide range of industries including automotive, semiconductor, and food processing.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#1,262 in Tokyo

#3,157 in Japan

#34,819 in the World

Yaskawa Electric Mfg. Co. Ltd.

Forward Citations = 243

38 inventors:

Satoru Nio (3 out of 6 patents)

Takeo Suzuki (2 out of 18 patents)

Toshiro Kisakibaru (2 out of 11 patents)

4. Yasuhiko Kaku (2 out of 26 patents)

5. Richard L Pratt (2 out of 2 patents)

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