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Schaft Inc.

USPTO Granted Patents = 14

% Expired Patents = 71.4

EPO Patents = 3

Forward Citations = 49

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10 inventors (with patents filed for the assignee):

Junichi Urata (12 out of 22 patents)

Yoshito Ito (3 out of 12 patents)

Koichi Nishiwaki (2 out of 4 patents)

4. Masaki Hamafuji (2 out of 5 patents)

5. Nobuyuki Ito (2 out of 29 patents)

6. Masayuki Inaba (2 out of 2 patents)

7. Satoshi Kagami (1 out of 9 patents)

8. Akihiko Sasaki (1 out of 1 patent)

9. Shuntaro Yamazaki (1 out of 28 patents)

10. Yuto Nakanishi (1 out of 2 patents)

11. Jyunichi Urata (0 patent)

14 patents: Sort by Forward Citations

1. 10199904 - Cooling a heat-generating electronic device (2019-02-05),

2. 10196104 - Terrain Evaluation for robot locomotion (2019-02-05),

3. 10179619 - Robotic foot sensor (2019-01-15),

4. 10160505 - Variable-compliance, slip-resistant foot for legged mechanisms (2018-12-25),

5. 10132701 - Rotary driver (2018-11-20),

6. 10006989 - Disabling robot sensors (2018-06-26),

7. 10000248 - Rotatable robot foot with perpendicular soles (2018-06-19),

8. 9994269 - Rotatable extension for robot foot (2018-06-12),

9. 9950430 - Encoder update by using regenerative power (2018-04-24),

10. 9882523 - Motor drive voltage control device and method for controlling motor drive voltage (2018-01-30),

11. 9821866 - Rotatable robot foot with perpendicular soles (2017-11-21),

12. 9768662 - Water-cooled motor structure and water-cooled housing (2017-09-19),

13. 9733137 - Rotational drive device (2017-08-15),

14. 9503013 - Motor drive voltage control device and method for controlling motor drive voltage (2016-11-22),

Schaft Inc. is a robotics company based in Tokyo, Japan, specializing in the development of advanced humanoid robots and robotic systems. The organization focuses on creating innovative solutions that enhance human-robot interaction and improve robotic mobility and functionality. With a strong emphasis on artificial intelligence and machine learning, Schaft aims to push the boundaries of robotics technology, contributing to various sectors including manufacturing, logistics, and service industries.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

14 Patents

#1,596 in Tokyo

#3,577 in Japan

#42,199 in the World

Schaft Inc.

Forward Citations = 49

10 inventors:

Junichi Urata (12 out of 22 patents)

Yoshito Ito (3 out of 12 patents)

Koichi Nishiwaki (2 out of 4 patents)

4. Masaki Hamafuji (2 out of 5 patents)

5. Nobuyuki Ito (2 out of 29 patents)

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