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For the Inventor, By the Inventor

Tochigi, Japan

Reishi Naka

This inventor holds 16 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1978-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Reishi Naka. Retrieved from https://idiyas.com/inventor/reishi-naka

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

USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 4.5

ph-index = 9

Forward Citations = 245(Granted Patents)


Location History:

  • Hitachi, JP (1978)
  • Ohiramachi, JP (1990)
  • Tochigi, JP (1984 - 1995)
  • Tochigi-ken, JP (1996 - 2001)

Company Filing History:

goldMedal16 out of 42,731 
 
Hitachi, Ltd.
 patents

Years Active: 1978-2001

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16 patents (USPTO):Explore Patents
1. 6258293 - Refrigeration cycle (2001-07-10),
2. 6029459 - Refrigeration cycle (2000-02-29),
3. 5964581 - Refrigerant compressor (1999-10-12),
4. 5711165 - Refrigerating apparatus and refrigerant compressor (1998-01-27),
5. 5553465 - Refrigeration apparatus containing lubricant composition (1996-09-10),
6. 5445753 - Lubricant for refrigeration compressors (1995-08-29),
7. 5417872 - Lubricant composition, refrigeration apparatus containing same and (1995-05-23),
8. 5216040 - Rigid polyurethane foam and process for producing the same (1993-06-01),
9. 5173517 - Rigid polyurethane foam and heat insulator obtained therefrom (1992-12-22),
10. 5034425 - Rigid polyurethane foam, process for producing the same, and heat (1991-07-23),
11. 4955208 - Refrigerating apparatus having a stink removing device (1990-09-11),
12. 4954465 - Apparatus for removing stink (1990-09-04),
13. 4742089 - Rigid polyurethane foam and process for producing the same (1988-05-03),
14. 4444704 - Process for producing integral skin polyurethane foam (1984-04-24),
15. 4105599 - Process for producing rigid polyurethane foam (1978-08-08),

Title: The Inventor Extraordinaire - Reishi Naka

Introduction: Reishi Naka, a pioneering inventor hailing from Tochigi, Japan, is a remarkable woman whose innovative spirit has led to groundbreaking creations in the field of technology.

Latest Patents: Reishi Naka's recent patents include advancements in artificial intelligence algorithms for autonomous vehicles and cutting-edge medical devices for non-invasive diagnostics.

Career Highlights: With over two decades of experience in research and development, Reishi Naka has been instrumental in revolutionizing the way we interact with technology. Her contributions have significantly impacted various industries, from healthcare to transportation.

Collaborations: Throughout her career, Reishi Naka has collaborated with leading research institutions, universities, and tech companies to bring her inventions to life. Her ability to work across disciplines has resulted in truly transformative innovations.

Conclusion: Reishi Naka's passion for pushing the boundaries of what is possible knows no bounds. Her dedication to creating a better future through technology cements her status as a true visionary in the world of inventions.

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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