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For the Inventor, By the Inventor

Kanagawa, Japan

Masanobu Yamamoto

This inventor holds 64 USPTO granted patents, plus 4 CIPO patents and 4 EPO patents, primarily in Optical Recording Medium (CPC class G11B). Top assignees: Sony Corporation, Yamaha Hatsudoki Kabushiki Kaisha, Bayer Aktiengesellschaft. Active years: 1979-2017.

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

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

USPTO Granted Patents = 64

% Patents Active = 70.3



Average Co-Inventor Count = 2.7

ph-index = 18

Forward Citations = 911(Granted Patents)

Forward Citations (Not Self Cited) = 893(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JP (1982 - 1983)
  • Kanagawa-ken, JP (1996 - 1999)
  • Iwata, JP (1989 - 2007)
  • Yokohama, JP (1979 - 2015)
  • Kanagawa, JP (1991 - 2017)

Company Filing History:

goldMedal53 out of 58,145 
 
Sony Corporation
 patents
silverMedal7 out of 4,353 
 
Yamaha Hatsudoki Kabushiki Kaisha
 patents
bronzeMedal1 out of 12,268 
 
Bayer Aktiengesellschaft
 patents
4. 1 out of 22 
 
Meisei Electric Co., Ltd.
 patents
5. 1 out of 222 
 
Sony Corporation of America
 patents
6. 1 out of 126 
 
Sony International (Europe) Gmbh
 patents
7. 1 out of 1 
 
Start Lab Inc.
 patent
8. 1 out of 1,269 
 
Toppan Printing Co., Ltd.
 patents
9. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1979-2017

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Areas of Expertise:
Optical Recording
Data Reproducing
Manufacturing Method
Electron Beam Irradiation
Optical Disc
Light Detecting Chip
Bioassay Unit
Liquid Drop Discharger
Engine Coupling
Optical Modeling
Data Recording Medium
Recording Apparatus
64 patents (USPTO):Explore Patents
1. 9636870 - Modeling apparatus and modeling method (2017-05-02),
2. 9034261 - System and method for depositing particles on a disc (2015-05-19),
3. 8466475 - Light detecting chip and light detecting device provided with light detecting chip (2013-06-18),
4. 7833000 - Optical modeling apparatus (2010-11-16),
5. 7826319 - Optical disc record medium, disc production method, recording apparatus (2010-11-02),
6. 7758329 - Optical modeling apparatus (2010-07-20),
7. 7709248 - Bioassay unit and substrate for bioassay (2010-05-04),
8. 7706240 - Optical disk and its manufacturing method (2010-04-27),
9. 7306067 - Engine coupling system (2007-12-11),
10. 7252063 - Engine generator (2007-08-07),
11. 7099258 - Optical recording medium, recording apparatus and method for optical recording medium, and reproducing apparatus and method for optical recording medium (2006-08-29),
12. 7072260 - Data recording medium, data reproducing method and reproducing device, and data processing system (2006-07-04),
13. 7035198 - Optical recording medium, recording apparatus and method for optical recording medium, and reproducing apparatus and method for optical recording medium (2006-04-25),
14. 7034319 - Electron beam irradiation apparatus, electron beam irradiation method, original disk, stamper, and recording medium (2006-04-25),
15. 7008045 - Liquid drop discharger, test chip processor, printer device, method of discharging liquid drop and printing method, method of processing test chip, method of producing organic electroluminescent panel, method of forming conductive pattern, and method of producing field emission display (2006-03-07),

Title: Innovator Spotlight: Masanobu Yamamoto - Pioneering Technological Advancements

Introduction: Masanobu Yamamoto, a visionary inventor hailing from Kanagawa, Japan, has made significant contributions to the field of technology with an impressive portfolio of 57 patents. His groundbreaking inventions have revolutionized various industries and continue to shape the future of innovation.

Latest Patents:

1. Modeling Apparatus and Modeling Method: Yamamoto's innovative powder transfer mechanism facilitates the layer-by-layer lamination of powder layers containing water-soluble powder, allowing for precise modeling of objects. By injecting water-based ink to dissolve the powder and using a heater for heating, this method ensures accuracy and efficiency in the modeling process.

2. System and Method for Depositing Particles on a Disc: This patent showcases a system where particles sorted by a flow cytometer can be directly deposited onto an optical disc's deposition layer. Additionally, crucial information related to the particles and their measurements can be recorded onto the disc, enabling seamless data management.

Career Highlights: Throughout his illustrious career, Masanobu Yamamoto has held key positions at renowned companies such as Sony Corporation, where his innovative spirit and technical expertise have led to groundbreaking inventions that have redefined industry standards and pushed the boundaries of technological advancements.

Collaborations: Yamamoto's collaborative efforts with esteemed colleagues such as Yoichiro Sako and Toshiyuki Kashiwagi have been instrumental in bringing his visionary ideas to fruition. Together, they have worked tirelessly to drive innovation and create solutions that have a lasting impact on the technological landscape.

Conclusion: Masanobu Yamamoto's relentless pursuit of innovation and his unwavering commitment to excellence have established him as a trailblazer in the world of technology. His remarkable inventions not only showcase his technical prowess but also reflect his passion for driving change and shaping a better tomorrow through cutting-edge advancements in science and technology.

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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