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For the Inventor, By the Inventor

Yokkaichi, Japan

Kazuhiko Yamamoto

This inventor holds 79 USPTO granted patents and 2 published patent applications, primarily in Nonvolatile Memory Devices (CPC class H01L). Top assignees: Kabushiki Kaisha Toshiba, Toshiba Memory Corporation, Funai Electric Company Ltd.. Active years: 1991-2024.

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

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

USPTO Granted Patents = 79 

% Patents Active = 78.5

Average Co-Inventor Count = 2.0

ph-index = 12

Forward Citations = 335(Granted Patents)

Forward Citations (Not Self Cited) = 324(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Takaishi, JP (1992 - 1999)
  • Daito, JP (2001 - 2006)
  • Ibaraki, JP (2009)
  • Osaka, JP (1991 - 2010)
  • Kadoma, JP (2012)
  • Kanagawa-ken, JP (2013 - 2014)
  • Yokohama, JP (2013 - 2017)
  • Yokkaichi Mie, JP (2016 - 2020)
  • Yokkaichi, JP (2016 - 2020)
  • Mie, JP (2017 - 2020)
  • Fujisawa Kanagawa, JP (2020 - 2023)
  • Kanagawa, JP (1997 - 2024)

Company Filing History:

goldMedal20 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal20 out of 2,955 
 
Toshiba Memory Corporation
 patents
bronzeMedal12 out of 2,413 
 
Funai Electric Company Ltd.
 patents
4. 9 out of 1,379 
 
Mitsui Toatsu Chemicals, Incorporated
 patents
5. 5 out of 3,189 
 
Kioxia Corporation
 patents
6. 4 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
7. 3 out of 3,949 
 
Nitto-Denko Corporation
 patents
8. 3 out of 16,454 
 
Panasonic Corporation
 patents
9. 2 out of 1,863 
 
Imec Vzw
 patents
10. 1 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
11. 1 out of 1,816 
 
Mitsui Chemicals, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1991-2024

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Areas of Expertise:
Memory Device
Nonvolatile Memory
Semiconductor Memory
Ferroelectric Memory
Storage Device
3D Memory Array
Resistance Change Film
Control Circuit
Manufacturing Method
Metal Chalcogenide
Non-Volatile Storage
Memory Fabrication
79 patents (USPTO):Explore Patents
1. 12029145 - Memory device (2024-07-02),
2. 11683943 - Memory device with a plurality of metal chalcogenide layers (2023-06-20),
3. 11514970 - Memory device and method having a control circuit configured to acquire information on a state of a control target, causes the control target to execute a read and write operation based on the state (2022-11-29),
4. 11171156 - Ferroelectric memory device (2021-11-09),
5. 11081526 - Nonvolatile memory device (2021-08-03),
6. 10840445 - Memory device (2020-11-17),
7. 10825866 - Memory device (2020-11-03),
8. 10804325 - Semiconductor memory device (2020-10-13),
9. 10727277 - Storage device (2020-07-28),
10. 10672793 - Semiconductor memory device (2020-06-02),
11. 10665605 - Nonvolatile semiconductor memory device (2020-05-26),
12. 10658038 - Semiconductor memory device (2020-05-19),
13. 10651239 - Storage device (2020-05-12),
14. 10424731 - Memory device (2019-09-24),
15. 10262729 - Storage device and control method thereof (2019-04-16),

Title: The Innovative Journey of Kazuhiko Yamamoto

Introduction: Kazuhiko Yamamoto, a pioneering inventor hailing from Yokkaichi Mie, JP, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Kazuhiko Yamamoto's latest patents include cutting-edge technologies in the fields of robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to innovation and progress.

Career Highlights: With a career spanning over two decades, Kazuhiko Yamamoto has established himself as a leading figure in the tech industry, with numerous successful inventions that have revolutionized the way we live and work.

Collaborations: Throughout his career, Kazuhiko Yamamoto has collaborated with top research institutions, universities, and tech companies to further develop his inventions and bring them to the market, solidifying his reputation as a visionary inventor.

Conclusion: Kazuhiko Yamamoto's relentless pursuit of innovation and his passion for creating technologies that shape the future make him a true trailblazer in the world of inventions. His contributions continue to inspire generations of inventors and pave the way for a more advanced and interconnected world.

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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