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For the Inventor, By the Inventor

Moriguchi, Japan

Eiji Fukuda

This inventor holds 8 USPTO granted patents. Top assignee: Sanyo Electric Co., Ltd.. Active years: 1998-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Fukuda. Retrieved from https://idiyas.com/inventor/eiji-fukuda-lkhlknmo

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

Calculating rank
USPTO Granted Patents = 8

% Patents Active = 62.5

Average Co-Inventor Count = 4.2

ph-index = 4

Forward Citations = 36(Granted Patents)


Location History:

  • Gunma-ken, JP (1999)
  • Oizumi-machi, JP (1998 - 2003)
  • Osaka, JP (2005)
  • Gunma, JP (2000 - 2006)
  • Moriguchi, JP (2013)

Company Filing History:

goldMedal8 out of 8,782 
 
Sanyo Electric Co., Ltd.
 patents

Years Active: 1998-2013

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8 patents (USPTO):Explore Patents
1. 8393172 - Heat pump drying machine (2013-03-12),
2. 7143595 - Supercritical refrigerant cycle system (2006-12-05),
3. 6846164 - Multi-cylinder compressor having plural intake ports in a bearing plate and a cover member forming a sealed space over the bearing plate (2005-01-25),
4. 6546738 - Stirling refrigerator (2003-04-15),
5. 6279325 - Stirling device (2001-08-28),
6. 6161389 - Stirling machine with heat exchanger having fin structure (2000-12-19),
7. 5927079 - Stirling refrigerating system (1999-07-27),
8. 5737925 - Free piston Vuillermier machine (1998-04-14),

Title: Eiji Fukuda: Innovator in Heat Pump Technology

Introduction

Eiji Fukuda is a prominent inventor based in Moriguchi, Japan. He has made significant contributions to the field of heat pump technology, holding a total of 8 patents. His work focuses on improving energy efficiency and heat exchange capabilities in various systems.

Latest Patents

Fukuda's latest patents include a heat pump drying machine and a supercritical refrigerant cycle system. The heat pump drying machine features two operational modes: a normal dry mode and an energy-saving dry mode. The normal dry mode operates the compressor at a predetermined frequency, while the energy-saving mode operates at a lower frequency to conserve energy. A control device is integrated to switch between these modes, enhancing operational efficiency.

The supercritical refrigerant cycle system aims to improve heat exchange in evaporators. This system operates at supercritical pressure and includes components such as a compressor, gas cooler, expansion valve, and evaporator. The expansion valve's degree of opening is adjusted based on the refrigerant's temperature and pressure at the evaporator's outlet, optimizing the degree of superheat.

Career Highlights

Eiji Fukuda is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of heat pump technology. His work has garnered attention for its potential to enhance energy efficiency in various applications.

Collaborations

Fukuda has collaborated with notable coworkers, including Hiroshi Sekiya and Takashi Inoue. Their combined expertise has contributed to the development of advanced technologies in the heat pump sector.

Conclusion

Eiji Fukuda's contributions to heat pump technology demonstrate his commitment to innovation and energy efficiency. His patents reflect a deep understanding of thermodynamic principles and their practical applications. His work continues to influence the industry and pave the way for future advancements.

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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