Noboru Ishida

This inventor holds 26 USPTO granted patents, primarily in Lubricant Compositions. Top assignees: Nippon Oil Company, Nippon Mitsubishi Oil Corporation. Active years: 1980-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noboru Ishida. Retrieved from https://idiyas.com/inventor/noboru-ishida-isv4byae

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

USPTO Granted Patents = 26

% Patents Active = 96.2

Average Co-Inventor Count = 2.9

ph-index = 9

Forward Citations = 288(Granted Patents)

Location History:

Kanagawa, JP (1981)
Sagamihara, JP (1980 - 1983)
Kawasaki, JP (1988 - 1995)
Kanagawa-ken, JP (2001)
Yokohama, JP (1993 - 2006)

Company Filing History:

Nippon Mitsubishi Oil Corporation

patents

Years Active: 1980-2006

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Areas of Expertise:

Refrigeration Oils

Chlorine-Free Refrigerants

Lubricant Additive

Synthetic Lubricating Oil

Traction Drive Fluid

Fuel Additive

Electrical Insulating Oil

Rust Inhibitors

Fluid Compositions

Lubricating Oil

Metal Deactivator

Naphthalene Derivatives

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7052626 - Fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants (2006-05-30),

2. 6998065 - Fluid compositions containing refrigerator oils and chlorine-free fluorocarbon refrigerants (2006-02-14),

3. 6828286 - Lubricant compositions (2004-12-07),

4. 6638417 - Traction drive fluid (2003-10-28),

5. 6582621 - Refrigerator oils for use with chlorine-free fluorocarbon refrigerants (2003-06-24),

6. 6242393 - Traction drive fluid (2001-06-05),

7. 6153118 - Fluid compositions containing refrigerator oils and chlorine-free (2000-11-28),

8. 5928393 - Fuel additive (1999-07-27),

9. 5837016 - Fuel additive (1998-11-17),

10. 5755833 - Fuel additive (1998-05-26),

11. 5746933 - Lubricating oil and composition for refrigerating machine, and (1998-05-05),

12. 5663125 - Lubricating oil for two-cycle engines (1997-09-02),

13. 5543081 - Lubricant additive (1996-08-06),

14. 5447647 - Synthetic lubricating oil (1995-09-05),

15. 5391311 - Fluid compositions for refrigerators (1995-02-21),

Title: Noboru Ishida: Innovator in Refrigeration Technologies

Introduction

Noboru Ishida, an accomplished inventor based in Yokohama, Japan, boasts an impressive portfolio of 26 patents. His contributions predominantly focus on advancements in fluid compositions, significantly impacting the refrigeration industry. With a keen eye for innovation, Ishida has pioneered several solutions aimed at improving refrigeration efficiency and sustainability.

Latest Patents

Ishida’s latest patents revolve around fluid compositions containing refrigeration oils and chlorine-free fluorocarbon refrigerants. One notable patent outlines a fluid composition for a refrigerator, which combines a chlorine-free fluorocarbon refrigerant with a particular refrigerator oil. This oil is a tetraester of pentaerythritol, specifically formulated with both 2-ethylhexanoic acid and 3,5,5-trimethylhexanoic acid, exhibiting a pour point not higher than -10°C. Another essential patent details a refrigerator oil suitable for compressors using a hydrogen-containing halogenocarbon as a refrigerant. This oil comprises ester types selected from pentaerythritol esters and polyol esters, alongside epoxy compounds, showcasing his innovative approach to modern refrigeration challenges.

Career Highlights

Throughout his career, Ishida has made significant strides in the field of refrigeration technologies. He has been affiliated with notable companies such as Nippon Oil Company and Nippon Mitsubishi Oil Corporation. His work in these leading firms has profoundly influenced the development and commercialization of cutting-edge refrigeration solutions.

Collaborations

During his innovative journey, Ishida has collaborated with esteemed professionals like Hiroshi Hasegawa and Umekichi Sasaki. These partnerships have fostered an environment of creativity and technical expertise, enabling enhanced product development and research in refrigeration technologies.

Conclusion

Noboru Ishida stands as a prominent figure in the realm of refrigeration innovations. His 26 patents reflect not only his technical talents but also his commitment to advancing sustainable refrigeration solutions. Through his work and collaborations, Ishida continues to shape the future of this crucial industry, making significant contributions to both technology and environmental sustainability.

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]