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For the Inventor, By the Inventor

Kanagawa, Japan

Kenji Yamamoto

This inventor holds 118 USPTO granted patents and 7 published patent applications and 8 EPO patents, primarily in Window Regulators (CPC class E05Y2900-55). Top assignees: Sony Corporation, Shiroki Corporation, Hitachi Software Engineering Company, Ltd.. Active years: 1980-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Yamamoto. Retrieved from https://idiyas.com/inventor/kenji-yamamoto-05ren8mw

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

Calculating rank
USPTO Granted Patents = 118 

% Patents Active = 45.8

 

Average Co-Inventor Count = 2.4

ph-index = 15

Forward Citations = 824(Granted Patents)

Forward Citations (Not Self Cited) = 806(Dec 10, 2025)


Inventors with similar research interests:


    Location History:

    • Nagano, JP (1983 - 1985)
    • Chiba, JP (1981 - 1996)
    • Kashiwa, JP (1980 - 2003)
    • Kawasaki, JP (1997 - 2003)
    • Kanagawa-ken, JP (2013)
    • Kariya, JP (1997 - 2020)
    • Aichi-ken, JP (2017 - 2021)
    • Fujisawa, JP (2018 - 2021)
    • Kanagawa, JP (1999 - 2022)

    Company Filing History:

    goldMedal55 out of 58,150 
     
    Sony Corporation
     patents
    silverMedal15 out of 212 
     
    Shiroki Corporation
     patents
    bronzeMedal13 out of 228 
     
    Hitachi Software Engineering Company, Ltd.
     patents
    4. 7 out of 1,908 
     
    Kabushiki Kaisha Toyota Jidoshokki
     patents
    5. 6 out of 39,381 
     
    Fujitsu Corporation
     patents
    6. 4 out of 2,467 
     
    Nec Electronics Corporation
     patents
    7. 3 out of 497 
     
    Avago Technologies Ecbu IP (Singapore) Pte. Ltd.
     patents
    8. 3 out of 365 
     
    Suntory Holdings Limited
     patents
    9. 2 out of 19 
     
    Graphtec Kabushiki Kaisha
     patents
    10. 2 out of 12 
     
    Shiroki Kogyo Co., Ltd.
     patents
    11. 2 out of 2 
     
    Suntory Beverage & Food Asia Pte. Ltd.
     patents
    12. 1 out of 25 
     
    Fujistu Limited
     patents
    13. 1 out of 373 
     
    Japan Science and Technology Corporation
     patents
    14. 1 out of 1,343 
     
    Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
     patents
    15. 1 out of 1,373 
     
    Lite-On Technology Corporation
     patents
    16. 1 out of 9,002 
     
    Nikon Corporation
     patents
    17. 1 out of 13,420 
     
    Nissan Motor Company Limited
     patents
    18. 1 out of 274 
     
    Oiles Corporation
     patents
    19. 1 out of 256 
     
    Research Development Corporation of Japan
     patents
    20. 1 out of 3,334 
     
    Sony Semiconductor Solutions Corporation
     patents
    where one patent can have more than one assignee

    Years Active: 1980-2022

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    Areas of Expertise:
    Window Regulator
    Variable Displacement Compressor
    Biometrics Authentication
    Optical Medium
    Image Processing
    Vehicle Components
    Reproduction Apparatus
    Drive Device
    Check Valve
    Information Processing
    Manufacturing Method
    Tension Applying Method
    118 patents (USPTO):Explore Patents
    1. 11382911 - Plant extract containing diketopiperazine and method for producing same (2022-07-12),
    2. 11335371 - Reproduction apparatus and reproduction method (2022-05-17),
    3. 11199184 - Variable displacement swash plate compressor (2021-12-14),
    4. 11136810 - Window regulator and method of assembling the same (2021-10-05),
    5. 11136809 - Window regulator and method of assembling the same (2021-10-05),
    6. 11136803 - Window regulator and method of assembling the same (2021-10-05),
    7. 11092178 - Vehicle component fastening structure (2021-08-17),
    8. 10956547 - Biometrics authentication system (2021-03-23),
    9. 10815980 - Variable displacement swash plate type compressor (2020-10-27),
    10. 10753137 - Window regulator (2020-08-25),
    11. 10711502 - Wire type window regulator (2020-07-14),
    12. 10631559 - Acidic extracts and beverages containing 2,5-piperazinedione,3,6-bis(phenylmethyl)-(3S,6S)- (2020-04-28),
    13. 10626962 - Drive device for opening/closing body for vehicle (2020-04-21),
    14. 10612534 - Variable displacement swash plate type compressor (2020-04-07),
    15. 10532079 - Extracts and beverages containing 2,5-piperazinedione, 3,6-bis(phenylmethyl)-, (3S,6S)- (2020-01-14),

    As an AI assistant on iDiya's website, I am excited to present to you an article on the esteemed inventor, Kenji Yamamoto from Kanagawa, Japan.

    **Title: The Inventive Mind of Kenji Yamamoto**

    Introduction

    Kenji Yamamoto, a prolific inventor hailing from Kanagawa, JP, has made significant contributions to the field of innovation with a remarkable portfolio of 118 patents.

    Latest Patents

    Among his latest patents is a groundbreaking invention involving plant extracts containing diketopiperazines. This invention revolutionizes the production of a mixture suitable for incorporation into food and beverages, offering both flavor enhancement and functional benefits.

    Another noteworthy patent by Yamamoto is a state-of-the-art reproduction apparatus and method, showcasing his expertise in optical systems and signal processing technology.

    Career Highlights

    Kenji Yamamoto has garnered experience and expertise through his tenure at esteemed companies such as Sony Corporation and Shiroki Corporation. His innovative spirit and dedication to excellence have been instrumental in shaping the technological landscape.

    Collaborations

    Throughout his career, Yamamoto has collaborated with accomplished professionals in the field, including coworkers like Kengo Hayasaka and Noriaki Nishi. Together, they have driven innovation and pushed boundaries in their respective fields.

    Conclusion

    In conclusion, Kenji Yamamoto stands as a testament to the power of ingenuity and relentless pursuit of innovation. His patents and collaborations underscore his remarkable contributions to the world of inventions, solidifying his legacy as a pioneering inventor in the realm of 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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