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For the Inventor, By the Inventor

Shizuoka, Japan

Asmo Co., Ltd.


USPTO Granted Patents = 800

% Expired Patents = 29.1



Trademarks = 1

Forward Citations = 7,903

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703 inventors (with patents filed for the assignee):

goldMedal Yoji Yamada (34 out of 48 patents)

silverMedal Toshio Yamamoto (34 out of 42 patents)

bronzeMedal Katsuhiko Torii (31 out of 40 patents)

4.  Seiya Yokoyama (28 out of 41 patents)

5.  Hiroaki Yamamoto (26 out of 26 patents)

6.  Hidenori Ishihara (25 out of 29 patents)

7.  Shigemasa Kato (22 out of 25 patents)

8.  Shinji Santo (21 out of 21 patents)

9.  Kengo Yamamura (21 out of 23 patents)

10.  Yoshiaki Takemoto (20 out of 27 patents)

11.  Tomoyuki Kikuta (20 out of 24 patents)

12.  Takeshi Tanaka (20 out of 34 patents)

13.  Masaaki Shimizu (19 out of 19 patents)

14.  Kazunobu Kanno (18 out of 18 patents)

15.  Yoshiyuki Takabe (17 out of 19 patents)


Core Competencies:
Electric Motor
Brushless Motor
Motor Controller
Rotor
Stator
Manufacturing Method
Vehicle Wiper
Power Steering
Centrifugal Pump
Actuator
Clutch
Wiper Device

800 patents:

1. 10734852 - Motor (2020-08-04),
2. 10432067 - Electric motor (2019-10-01),
3. 10164487 - Motor, method for manufacturing magnetic plate, and method for manufacturing stator (2018-12-25),
4. 10074951 - Commutator, motor, and manufacturing method of commutator (2018-09-11),
5. 10069351 - Armature and rotating electrical device (2018-09-04),
6. 10024095 - Openable and closable member control apparatus (2018-07-17),
7. 10014746 - Rotary electric machine and method of manufacturing rotary electric machine (2018-07-03),
8. 10008909 - Motor driving control device for vehicle (2018-06-26),
9. 10005433 - Wiper-washer control device (2018-06-26),
10. 10003138 - Pump device and terminal member (2018-06-19),
11. 9994196 - Wiper device (2018-06-12),
12. 9981636 - Wiper blade and method for manufacturing wiper blade (2018-05-29),
13. 9966807 - Brushless motor (2018-05-08),
14. 9937899 - Wiper arm and vehicle wiper apparatus equipped therewith (2018-04-10),
15. 9935517 - Electric motor for power steering apparatus of vehicle (2018-04-03),
Company Overview
Asmo Co., Ltd., headquartered in Shizuoka, Japan, specializes in the development and manufacturing of electric motors, with a strong focus on brushless motors and motor controllers. The company is recognized for its innovative solutions in automotive applications, including vehicle wipers and power steering systems. Asmo's expertise encompasses key components such as rotors and stators, as well as advanced manufacturing methods, positioning it as a significant player in the electric motor industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Asmo Co., Ltd. USPTO Patent Assignee Logo
800 Patents

#2 in Shizuoka

#267 in Japan

#1,256 in the World

Shizuoka, JP
Shizuoka, Japan

Asmo Co., Ltd.

Forward Citations = 7,903

703 inventors:

goldMedal Yoji Yamada (34 out of 48 patents)

silverMedal Toshio Yamamoto (34 out of 42 patents)

bronzeMedal Katsuhiko Torii (31 out of 40 patents)

4.  Seiya Yokoyama (28 out of 41 patents)

5.  Hiroaki Yamamoto (26 out of 26 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asmo Co., Ltd.. Retrieved from https://idiyas.com/company/asmo-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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