Heikichi Kuwahara

This inventor holds 22 USPTO granted patents, primarily in Thermal Management. Top assignees: Hitachi, Ltd., Hitachi Cable, Inc., Hitachi, Ltd. & Hitachi Cable, Ltd.. Active years: 1977-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Heikichi Kuwahara. Retrieved from https://idiyas.com/inventor/heikichi-kuwahara

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

USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 5.7

ph-index = 15

Forward Citations = 811(Granted Patents)

Location History:

Kashiwa, JA (1977)
Kashiwa, JP (1980)
Ibaraki, JP (1985 - 1996)
Tsuchiura, JP (1997 - 2000)

Company Filing History:

Hitachi, Ltd. & Hitachi Cable, Ltd.

patent

where one patent can have more than one assignee

Years Active: 1977-2000

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Areas of Expertise:

Power Storage Device

Cooling Apparatus

Semiconductor Device

Heat Transfer Tube

Liquid Film Evaporation

Heat Exchanger

Thermally Separated Parts

Heat Transfer Wall

Heat-Pipe Cooling

Flexible Members

Single-Phase Flow

Condensation Method

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6021040 - Power storage device and power converter using same (2000-02-01),

2. 5925947 - Totally-enclosed type motor (1999-07-20),

3. 5925929 - Cooling apparatus for electronic elements (1999-07-20),

4. 5793611 - Cooling device with thermally separated electronic parts on a monolithic (1998-08-11),

5. 5793106 - Semiconductor device (1998-08-11),

6. 5651414 - Heat-pipe type cooling apparatus (1997-07-29),

7. 5504924 - Cooling system of electronic computer using flexible members in contact (1996-04-02),

8. 5365402 - Cooling apparatus of electronic device (1994-11-15),

9. 5270572 - Liquid impingement cooling module for semiconductor devices (1993-12-14),

10. 5021924 - Semiconductor cooling device (1991-06-04),

11. 4977444 - Semiconductor cooling apparatus (1990-12-11),

12. 4794775 - Method of producing a heat transfer tube for single-phase flow (1989-01-03),

13. 4715436 - Construction of a heat transfer wall of a heat transfer pipe (1987-12-29),

14. 4690211 - Heat transfer tube for single phase flow (1987-09-01),

15. 4653163 - Method for producing a heat transfer wall for vaporizing liquids (1987-03-31),

Title: Heikichi Kuwahara: A Leader in Power Storage and Cooling Innovations

Introduction

Heikichi Kuwahara is a distinguished inventor based in Tsuchiura, Japan, known for his significant contributions to the fields of power storage devices and cooling apparatus for electronic elements. With an impressive portfolio of 22 patents, Kuwahara has demonstrated a relentless pursuit of innovation that enhances the efficiency and reliability of electronic systems.

Latest Patents

Among Kuwahara's latest inventions is a revolutionary power storage device that encompasses a capacitor and a battery, designed to improve energy retention and output. This invention features a novel power storage element constructed with an anode foil, cathode foil, and an insulating material, all housed within a highly thermally conductive case. The configuration of this device ensures effective thermal management and security, significantly reducing the risk of leakage currents and noise generation while extending the device’s operational lifespan.

Another notable patent addresses the need for effective cooling systems in electronic devices. The cooling apparatus comprises an electronic element unit with a base member and a thermal conductive electric insulating layer. In conjunction with a cooling unit that utilizes heat pipes and radiation fins, this design enhances thermal dissipation, pivotal for maintaining the performance of high-power electronics.

Career Highlights

Kuwahara has made substantial contributions during his tenure at prominent companies, including Hitachi and Hitachi Cable. His experience in these organizations has played an essential role in his development as an inventor, allowing him to apply advanced technologies and innovative solutions to real-world problems.

Collaborations

In his inventive endeavors, Kuwahara has collaborated with esteemed colleagues Wataru Nakayama and Tadakatsu Nakajima. Together, they have shared insights and expertise that have undoubtedly influenced the quality and breadth of their innovative projects.

Conclusion

Heikichi Kuwahara's work exemplifies the spirit of innovation in the electronics field, with his patents offering solutions that enhance performance and longevity. As a key figure in developing power storage and cooling systems, Kuwahara's legacy continues to inspire future inventions and improvements in 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]