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For the Inventor, By the Inventor

Hachioji, Japan

Yoichi Amemiya

This inventor holds 18 USPTO granted patents, primarily in Electric Motor Technology. Top assignees: Fanuc Corporation, Fujitsu Fanuc Limited. Active years: 1981-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Amemiya. Retrieved from https://idiyas.com/inventor/yoichi-amemiya

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

USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 13

Forward Citations = 338(Granted Patents)


Company Filing History:

goldMedal14 out of 6,287 
 
Fanuc Corporation
 patents
silverMedal4 out of 187 
 
Fujitsu Fanuc Limited
 patents

Years Active: 1981-1989

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Areas of Expertise:
AC Servomotor
Synchronous Motor
Permanent-Magnet Rotor
Synchronous Machine
Electric Motor
Pulse Coder
Speed-Detecting Device
Brushless Tachometer
Positioning Control
Manufacturing Method
Field Rotor Structure
Photoelectric Converter
18 patents (USPTO):Explore Patents
1. 4796352 - AC servomotor and a method of manufacturing the same (1989-01-10),
2. 4748360 - Rotor for a synchronous motor (1988-05-31),
3. 4714852 - Permanent-magnet field synchronous motor (1987-12-22),
4. 4700097 - Synchronous machine (1987-10-13),
5. 4697114 - Permanent-magnet rotor shrink-fit assembly (1987-09-29),
6. 4663550 - Shaft for an electric motor with DC brake (1987-05-05),
7. 4661736 - Rotor for a synchronous motor (1987-04-28),
8. 4631807 - Method of manufacturing a permanent-magnet field rotor (1986-12-30),
9. 4629956 - System for controlling motors for synchronous operation (1986-12-16),
10. 4626725 - Synchronous rotary machine (1986-12-02),
11. 4551676 - Pulse coder using magnetoresistance elements having an improved z-phase (1985-11-05),
12. 4543506 - Permanant magnet field type rotor structure for an electric machine (1985-09-24),
13. 4538084 - Stator of motor (1985-08-27),
14. 4536649 - Photoelectric converter-type pulse encoder (1985-08-20),
15. 4495464 - Non-contacting, speed-detecting device of a direct-current generator type (1985-01-22),

Title: Yoichi Amemiya: Pioneering Inventor from Hachioji, Japan

Introduction: Yoichi Amemiya is a renowned inventor hailing from Hachioji, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yoichi Amemiya holds several patents in various technological domains, showcasing his continuous commitment to pushing the boundaries of innovation.

Career Highlights: Throughout his illustrious career, Yoichi Amemiya has been instrumental in developing cutting-edge technologies that have revolutionized industries and improved the quality of life for many.

Collaborations: Yoichi Amemiya has collaborated with leading research institutions, universities, and innovative companies to further his inventions and bring them to the market, solidifying his reputation as a visionary inventor.

Conclusion: Yoichi Amemiya's passion for innovation and his relentless pursuit of technological advancement have cemented his legacy as a pioneering inventor not only in Hachioji, Japan but on a global scale.

Profile summary based on public USPTO records.
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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