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For the Inventor, By the Inventor

Yokohama, Japan

Hirotaka Tamura

This inventor holds 101 USPTO granted patents and 30 published patent applications and 13 EPO patents, primarily in Optimization Technology (CPC class G06N3-063). Top assignees: Fujitsu Corporation, University of Toronto, Fujitsu Limied. Active years: 1991-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotaka Tamura. Retrieved from https://idiyas.com/inventor/hirotaka-tamura

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

USPTO Granted Patents = 101 

% Patents Active = 60.4

 

Average Co-Inventor Count = 2.1

ph-index = 17

Forward Citations = 913(Granted Patents)

Forward Citations (Not Self Cited) = 895(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Atsugi, JP (1991 - 2005)
  • Kanagawa, JP (2007 - 2012)
  • Kawasaki, JP (1997 - 2023)
  • Toronto, CA (2023)
  • Yokohama, JP (2009 - 2024)

Company Filing History:

goldMedal100 out of 39,378 
 
Fujitsu Corporation
 patents
silverMedal2 out of 532 
 
University of Toronto
 patents
bronzeMedal1 out of 31 
 
Fujitsu Limied
 patents
where one patent can have more than one assignee

Years Active: 1991-2025

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Areas of Expertise:
Optimization Apparatus
Stochastic Search
Boltzmann Machine
Information Processing
Semiconductor Integrated Circuit
Jitter Measurement
Signal Transmission
Clock Recovery
Control Method
Sampling Apparatus
Data Processing
Electronic Circuit
101 patents (USPTO):Explore Patents
1. 12399682 - Data processing device, computer-readable recording medium storing data processing program, and data processing method (2025-08-26),
2. 12039233 - Optimization apparatus and optimization method (2024-07-16),
3. 11836651 - Automatic adjustment of replica exchange (2023-12-05),
4. 11715003 - Optimization system, optimization apparatus, and optimization system control method for solving optimization problems by a stochastic search (2023-08-01),
5. 11714936 - Optimization apparatus, optimization method, and non-transitory computer-readable storage medium for storing optimization program (2023-08-01),
6. 11645496 - Optimization apparatus and optimization apparatus control method (2023-05-09),
7. 11562211 - System local field matrix updates (2023-01-24),
8. 11551062 - Optimization apparatus and control method thereof (2023-01-10),
9. 11526740 - Optimization apparatus and optimization method (2022-12-13),
10. 11475346 - Optimization device and control method of optimization device (2022-10-18),
11. 11475099 - Optimization apparatus and method for controlling thereof (2022-10-18),
12. 11468287 - Information processing system, information processing apparatus, and information processing method (2022-10-11),
13. 11461432 - Semiconductor integrated circuit (2022-10-04),
14. 11422515 - Optimization device and method for controlling optimization device (2022-08-23),
15. 11334646 - Information processing apparatus and method for controlling sampling apparatus (2022-05-17),

Title: Hirotaka Tamura: A Mastermind in Optimization Technologies

Introduction

Hirotaka Tamura is a distinguished inventor based in Yokohama, Japan, known for his remarkable contributions to optimization technologies. With a striking portfolio of 100 patents, Tamura has made substantial impacts in various fields through his innovative methods and apparatuses.

Latest Patents

Tamura's latest patents showcase his groundbreaking work in optimization. One notable patent is the "Optimization Apparatus and Optimization Method," which details a sophisticated method for accessing and processing weight coefficient groups in relation to the energy evaluation of an Ising model. This invention focuses on finding optimal solutions through iterative processes with varied constraints. Another significant patent is "Automatic Adjustment of Replica Exchange." This invention enhances the Markov Chain Monte Carlo (MCMC) process by enabling the adjustment of variable temperatures based on swap acceptance probabilities during the replica exchange, leading to more efficient solutions in optimization problems.

Career Highlights

Hirotaka Tamura has demonstrated a remarkable career, with significant roles in esteemed organizations such as Fujitsu Corporation and The Governing Council of the University of Toronto. His involvement in these companies has allowed him to cultivate a deep understanding of complex optimization problems and contribute to advanced technological solutions.

Collaborations

Throughout his career, Tamura has collaborated with notable professionals, including Kohtaroh Gotoh and Junji Ogawa. These partnerships have contributed to his innovative outputs and reinforced his standing in the research community.

Conclusion

Hirotaka Tamura stands out as an influential inventor, whose 100 patents reflect his deep commitment to innovation and optimization. His latest inventions have the potential to revolutionize various applications in technology and research, solidifying his legacy as a pioneer in the field.

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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