Tokyo, Japan

Takahiro Yamamoto

This inventor holds 144 USPTO granted patents and 50 published patent applications and 7 EPO patents, primarily in Storage Systems (CPC class G06F3-067). Top assignees: Hitachi, Ltd., Kabushiki Kaisha Toshiba, Sony Olympus Medical Solutions Inc.. Active years: 1976-2026.

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

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

USPTO Granted Patents = 144 

% Patents Active = 81.3

 

Average Co-Inventor Count = 3.2

ph-index = 7

Forward Citations = 182(Granted Patents)

Forward Citations (Not Self Cited) = 159(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Tokyo, JA (1976)
  • Nishitokyo, JP (2004 - 2007)
  • Fuchu Tokyo, JP (2020)
  • Fuchu, JP (2001 - 2022)
  • Yokohama Kanagawa, JP (2022)
  • Kanagawa, JP (2015 - 2023)
  • Tokyo, JP (1983 - 2024)

Company Filing History:

goldMedal55 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal18 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
bronzeMedal15 out of 256 
 
Sony Olympus Medical Solutions Inc.
 patents
4. 14 out of 224 
 
Hitachi Vantara Corporation
 patents
5. 7 out of 2,451 
 
Subaru Corporation
 patents
6. 6 out of 16,602 
 
Mitsubishi Electric Corporation
 patents
7. 6 out of 58,145 
 
Sony Corporation
 patents
8. 5 out of 16,652 
 
Semiconductor Energy Laboratory Co., Ltd.
 patents
9. 4 out of 335 
 
Toshiba Energy Systems & Solutions Corporation
 patents
10. 3 out of 28,940 
 
Ricoh Company, Ltd.
 patents
11. 3 out of 16 
 
Wingarc1st Inc.
 patents
12. 2 out of 8,257 
 
Tdk Corporation
 patents
13. 2 out of 333 
 
Tdk Electronics Company, Limited
 patents
14. 2 out of 1,030 
 
Teac Corporation
 patents
15. 1 out of 1 
 
A&t Battery Corporation
 patent
16. 1 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
17. 1 out of 175 
 
Chiyoda Corporation
 patents
18. 1 out of 39,374 
 
Fujitsu Corporation
 patents
19. 1 out of 702 
 
Lapis Semiconductor Co., Ltd.
 patents
20. 1 out of 2,423 
 
Mitsubishi Chemical Corporation
 patents
21. 1 out of 1 
 
Nichireki Group Co. Ltd.
 patent
22. 1 out of 2 
 
Qunasys Inc.
 patents
23. 1 out of 890 
 
Riken Corporation
 patents
24. 1 out of 2 
 
Teac Corpration
 patents
25. 1 out of 2,643 
 
The Furukawa Electric Co., Ltd.
 patents
26. 1 out of 141 
 
Tokyo University of Science Foundation
 patents
27. 1 out of 1,294 
 
Zeon Corporation
 patents
where one patent can have more than one assignee

Years Active: 1976-2026

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Areas of Expertise:
Storage System
Information Processing
Data Management
Remote Copy
Encryption
Vehicle Technology
Capacitor Module
Thermoelectric Conversion
Quantum Information Processing
Disaster Recovery
Distributed Storage
Access Control
144 patents (USPTO):Explore Patents

Title: Takahiro Yamamoto: Tokyo's Innovative Inventor

Introduction:

In the bustling city of Tokyo, Japan, resides a brilliant inventor named Takahiro Yamamoto. With a passion for technology and a mind brimming with creativity, Yamamoto has made significant contributions to the world of inventions and patents. Having accumulated an impressive portfolio of 100 patents, he has proven himself to be a skilled and prolific innovator. Let us dive deeper into his latest patents, career highlights, collaborations, and conclude by highlighting the impact of his work.

Latest Patents:

Among Takahiro Yamamoto's recent patents is a groundbreaking storage system, storage management method, and storage management program. Addressing the challenge of the write hole problem, this invention significantly reduces the amount of writing data to storage devices, minimizing additional processing requirements. The patented storage system includes computers, nonvolatile storage devices, and high-speed storage devices that offer quicker accessibility. By incorporating a drive log containing write log information in the high-speed storage device, Yamamoto's solution optimizes data write processing while maintaining data integrity.

In addition to his storage system patent, Yamamoto has also made significant advancements in the field of power generation. His turbine power generation system introduces a single casing configuration designed to prevent over-rotation speed issues. By connecting a turbine rotor and a power generator rotor, power generation is facilitated by the rotational energy transferred through their interaction. The ingenious design of this system helps inhibit excessive rotational speeds, ensuring smooth and efficient turbine power generation.

Career Highlights:

Takahiro Yamamoto's career spans across renowned companies in Japan's technology landscape, including Hitachi Co., Ltd. and Kabushiki Kaisha Toshiba. At these companies, he has had the opportunity to further develop his skills and contribute to cutting-edge projects. Yamamoto's expertise and dedication have allowed him to flourish in these environments, ultimately leading to impressive achievements in the field of technology.

Collaborations:

Throughout his journey, Yamamoto has had the privilege of collaborating with exceptional colleagues who share his passion for innovation. Two notable coworkers who have worked alongside Yamamoto are Masakuni Agetsuma and Hiroto Ebara. These collaborations have not only fostered a supportive and creative work environment but have also resulted in remarkable inventions that push the boundaries of what is possible.

Conclusion:

Takahiro Yamamoto, based in the vibrant city of Tokyo, stands out as an esteemed inventor and patent holder. With an extensive collection of patents in various technological domains, his innovative prowess is undeniable. The recent patents he has secured, particularly in the fields of storage systems and turbine power generation, showcase his ability to tackle complex challenges and develop elegant solutions. Collaborating with talented coworkers during his professional journey has only heightened the impact of his work. As we eagerly anticipate future contributions from this visionary inventor, we can surely anticipate more groundbreaking inventions and patents from Takahiro Yamamoto.

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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