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For the Inventor, By the Inventor

Mito, Japan

Hidekazu Fujimura

This inventor holds 17 USPTO granted patents and 3 published patent applications and 1 EPO patent, primarily in Fuel Cell Technology. Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd.. Active years: 1987-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidekazu Fujimura. Retrieved from https://idiyas.com/inventor/hidekazu-fujimura

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

Calculating rank
USPTO Granted Patents = 17 

% Patents Active = 70.6

 

Average Co-Inventor Count = 3.9

ph-index = 8

Forward Citations = 184(Granted Patents)


Location History:

  • Mito, JP (1987 - 2016)
  • Tokyo, JP (2006 - 2019)

Company Filing History:

goldMedal16 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 2,028 
 
Hitachi Automotive Systems, Ltd.
 patents

Years Active: 1987-2019

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Areas of Expertise:
Fuel Cell
Battery Module
Power Generation
Electric Storage
Cooling System
Solid Oxide
Combustor
Document Management
Operation Planning
Gaseous Fuel
Thermal Management
17 patents (USPTO):Explore Patents
1. 10522799 - Cell pack and container provided with same (2019-12-31),
2. 9876207 - Battery module (2018-01-23),
3. 9325040 - Electric storage apparatus including battery modules, first cooling passage, and second cooling passage used to cool battery module after replacement (2016-04-26),
4. 9166207 - Secondary battery module with water cooling jacket (2015-10-20),
5. 8658323 - Solid oxide fuel cell generation system (2014-02-25),
6. 8349505 - Power generation system of fuel cell and control method thereof (2013-01-08),
7. 8277996 - Fuel cell (2012-10-02),
8. 7152005 - System for aiding the preparation of operation and maintenance plans for a power generation installation (2006-12-19),
9. 7107295 - System and method for document management and synchronization (2006-09-12),
10. 7065472 - System for aiding the preparation of operation and maintenance plans for a power generation installation (2006-06-20),
11. 6907381 - System for aiding the preparation of operation and maintenance plans for a power-generation installation (2005-06-14),
12. 6895289 - Document management system and method (2005-05-17),
13. 6853930 - System for aiding the preparation of operation and maintenance plans for a power generation installation (2005-02-08),
14. 6691065 - System foraiding the preparation of operation and maintenance plans for a power generation installation (2004-02-10),
15. 5515680 - Apparatus and method for mixing gaseous fuel and air for combustion (1996-05-14),

Title: Innovations by Hidekazu Fujimura

Introduction

Hidekazu Fujimura is a notable inventor based in Mito, Japan. He has made significant contributions to the field of battery technology, holding a total of 17 patents. His work focuses on enhancing battery performance and efficiency, which is crucial in today's technology-driven world.

Latest Patents

Fujimura's latest patents include a battery pack and a container designed to optimize temperature management among individual cells. This innovation aims to reduce temperature differences between single cells, thereby increasing the overall battery capacity per volume. The battery pack features a module that includes multiple single cells arranged in parallel, along with a partition member that creates a flow channel for gas to exchange heat with the cells. Additionally, he has developed a battery module structure that allows a spacer to slide via a guide member, ensuring proper positioning of the battery cells.

Career Highlights

Throughout his career, Fujimura has worked with prominent companies such as Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in battery technology.

Collaborations

Fujimura has collaborated with esteemed colleagues, including Yoshiharu Hayashi and Masao Furukawa. Their combined expertise has fostered innovative solutions in the field of battery design and functionality.

Conclusion

Hidekazu Fujimura's contributions to battery technology through his patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence advancements in energy storage solutions.

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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