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For the Inventor, By the Inventor

Kyoto, Japan

Isao Yamamoto

This inventor holds 88 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Power Supply Technology (CPC class 180179). Top assignees: Rohm Co., Ltd., Nissan Motor Company Limited, Panasonic Photo & Lighting Co., Ltd.. Active years: 1990-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Yamamoto. Retrieved from https://idiyas.com/inventor/isao-yamamoto

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

Calculating rank
USPTO Granted Patents = 88 

% Patents Active = 60.2


Average Co-Inventor Count = 2.4

ph-index = 13

Forward Citations = 712(Granted Patents)

Forward Citations (Not Self Cited) = 697(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Zama, JP (1992)
  • Ukyo-ku, JP (1997)
  • Sagamihara, JP (1992 - 1998)
  • Yokohama, JP (1992 - 2017)
  • Kanagawa, JP (1990 - 2019)
  • Kyoto, JP (1998 - 2020)

Company Filing History:

goldMedal67 out of 6,022 
 
Rohm Co., Ltd.
 patents
silverMedal19 out of 13,420 
 
Nissan Motor Company Limited
 patents
bronzeMedal2 out of 7 
 
Panasonic Photo & Lighting Co., Ltd.
 patents
4. 1 out of 34 
 
Jidosha Denki Kogyo K.k.
 patents
5. 1 out of 1 
 
Mitsubishi Motor Co., Ltd.
 patent
6. 1 out of 81 
 
Nissha Co., Ltd.
 patents
7. 1 out of 158 
 
Nissha Printing Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1990-2020

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Areas of Expertise:
Power Supply
DC/DC Converter
Control Circuit
Wireless Power
Battery Charging
Semiconductor Package
Switching Regulator
Current Detection
Power Delivery
Display Apparatus
Molded Article
Foam Molded Body
88 patents (USPTO):Explore Patents
1. 10730214 - Decorative sheet, molded-article manufacturing method, and molded article (2020-08-04),
2. 10727172 - Semiconductor package (2020-07-28),
3. 10505396 - Wireless power receiving apparatus (2019-12-10),
4. 10418202 - Production method for a membrane switch member (2019-09-17),
5. 10315491 - Foam molded body, duct for air conditioner, and duct for vehicle air conditioner (2019-06-11),
6. 9755509 - Control circuit for switching power supply (2017-09-05),
7. 9724892 - Water repellent film and component for vehicle including the film (2017-08-08),
8. 9722486 - Protection circuit (2017-08-01),
9. 9413251 - Power delivery device, AC adapter, electronic apparatus and power delivery system, having variable function of output voltage value and available output current capacity (2016-08-09),
10. 9284445 - Resin composition for nano concave-convex structure, transparent member for monitor of vehicle navigation device and transparent member for cover of vehicle meter using same composition (2016-03-15),
11. 9213198 - Display apparatus, automotive display apparatus, and method for manufacturing the display apparatus (2015-12-15),
12. 9128160 - Battery fuel gauge circuit (2015-09-08),
13. 8552963 - Switching regulator control circuit, current drive circuit, light emitting apparatus, and information terminal apparatus (2013-10-08),
14. 8237415 - Control circuit and method for capacitor charging circuit (2012-08-07),
15. 8143815 - DC/DC converter (2012-03-27),

**Title: The Innovative Journey of Isao Yamamoto**

Introduction:

Isao Yamamoto, a visionary inventor hailing from Kyoto, Japan, has made significant contributions to the world of innovations with his groundbreaking ideas and inventions.

Latest Patents:

Isao Yamamoto's latest patents showcase his continuous dedication to pushing the boundaries of technology and creativity, with a focus on improving everyday life through his inventions.

Career Highlights:

Throughout his illustrious career, Isao Yamamoto has been recognized for his inventive spirit and problem-solving skills. His patents have revolutionized various industries, making him a prominent figure in the world of innovation.

Collaborations:

Isao Yamamoto has collaborated with leading research institutions, universities, and companies to bring his ideas to life. These partnerships have been instrumental in the successful development and commercialization of his inventions.

Conclusion:

In conclusion, Isao Yamamoto's passion for innovation and relentless pursuit of excellence have solidified his position as a trailblazing inventor. His contributions have left an indelible mark on the world of technology and continue to inspire future generations of inventors.

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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