Kyoto, Japan

Masaya Yamamoto

This inventor holds 208 USPTO granted patents and 32 published patent applications, plus 17 CIPO patents and 82 EPO patents, primarily in Defect Inspection Technology (CPC class B60K6-445). Top assignees: Toyota Jidosha Kabushiki Kaisha, Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd.. Active years: 2003-2026.

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

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

USPTO Granted Patents = 208 

% Patents Active = 74.0

 

 

Average Co-Inventor Count = 3.2

ph-index = 13

Forward Citations = 811(Granted Patents)

Forward Citations (Not Self Cited) = 771(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Katano, JP (2003)
  • Osaka-fu, JP (2008 - 2011)
  • Hirakata, JP (2006 - 2014)
  • Honji, JP (2014)
  • Arcadia, CA (US) (2009 - 2015)
  • Kanagawa, JP (2014 - 2015)
  • Yokasuka, JP (2016)
  • Toyota, JP (2014 - 2017)
  • Sakai, JP (2004 - 2018)
  • Kasugai, JP (2007 - 2018)
  • Ichikawa, JP (2018)
  • Yokosuka, JP (2015 - 2019)
  • Osaka, JP (2003 - 2020)
  • Owariasahi, JP (2018 - 2020)
  • Honjyo, JP (2020)
  • Kyoto, JP (2007 - 2024)
  • Tokyo, JP (2017 - 2024)

Company Filing History:

goldMedal64 out of 38,837 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal48 out of 16,454 
 
Panasonic Corporation
 patents
bronzeMedal32 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents
4. 16 out of 342 
 
Nisshin Steel Co., Ltd.
 patents
5. 14 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
6. 9 out of 13,420 
 
Nissan Motor Company Limited
 patents
7. 7 out of 2,064 
 
Aisin Aw Co., Ltd.
 patents
8. 7 out of 20,394 
 
Denso Corporation
 patents
9. 7 out of 1,380 
 
Hitachi High-Tech Corporation
 patents
10. 6 out of 4,008 
 
Panasonic Intellectual Property Corporation of America
 patents
11. 5 out of 6,021 
 
Rohm Co., Ltd.
 patents
12. 2 out of 2,208 
 
Fuji Jukogyo Kabushiki Kaisha
 patents
13. 2 out of 8,994 
 
Nikon Corporation
 patents
14. 2 out of 58,145 
 
Sony Corporation
 patents
15. 2 out of 221 
 
Stryker European Operations Limited
 patents
16. 1 out of 38 
 
Nichicon Corporation
 patents
17. 1 out of 14 
 
Nippon Paint Surf Chemicals Co., Ltd.
 patents
18. 1 out of 45 
 
Nippon Steel Nisshin Co., Ltd.
 patents
19. 1 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents
where one patent can have more than one assignee

Years Active: 2003-2026

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Areas of Expertise:
Defect Inspection
Ultrasonic Surgical
Information Processing
Optical Inspection
Lighting Optical System
Capacitor Manufacturing
Content Recording
Video Processing
Network Service Intermediation
Device Management
Chemical Conversion Treatment
Hybrid Vehicle Control
208 patents (USPTO):Explore Patents

Title: Masaya Yamamoto: A Kyoto-Based Innovator with 120 Patents

Introduction:

Masaya Yamamoto, a renowned inventor with an impressive track record, hails from Kyoto, Japan. With a vast array of patents to his name and a commitment to technological advancements, Yamamoto has contributed significantly to the field of content recording and management.

Latest Patents:

Yamamoto's latest patents include a series of content recording, editing, and reproduction apparatuses, as well as corresponding methods. These inventions revolutionize the content industry by incorporating variable-length packet structure and encrypted data. Notably, the content recording apparatus employs a recording medium that records encrypted data, including an invalidated region irrelevant to content reproduction, while also storing the size of this region.

Device management system and method are further technologies Yamamoto has pioneered. With this groundbreaking invention, a device management system ensures efficient communication between servers, base stations for long-distance wireless communication, and devices. Operation information from multiple devices is sequentially transmitted to the server, and each base station transmits unique information alongside the received data. This system enables seamless management of operation information based on the uniqueness of the base stations.

Career Highlights:

Yamamoto's exceptional career has been marked by his association with esteemed corporations. Notably, he has contributed his expertise to Panasonic Corporation, a renowned Japanese electronics company. Alongside Panasonic Corporation, Yamamoto has also worked with Panasonic Intellectual Property Management Co., Ltd., a subsidiary dedicated to managing intellectual property assets.

Collaborations:

Throughout his journey, Yamamoto has collaborated with remarkable individuals, shaping his innovative prowess. Among his noteworthy coworkers, Masayuki Kozuka and Kaoru Murase have played integral roles in his inventive endeavors. Their combined expertise and shared aspirations have undoubtedly brought about groundbreaking outcomes.

Conclusion:

Masaya Yamamoto has undeniably left an indelible impact on the innovation and patent landscape, particularly within content recording and management. With 120 patents to his name and an ongoing dedication to technological advancements, Yamamoto's contributions have revolutionized the way we perceive and interact with various forms of media. As he continues his journey as an inventor, we eagerly anticipate his future endeavors and the transformative inventions that lie ahead.

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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