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For the Inventor, By the Inventor

Ora-gun, Japan

Takashi Sunaga

This inventor holds 11 USPTO granted patents and 1 EPO patent. Top assignees: Sanyo Electric Co., Ltd., Idemitsu Kosan Company, Limited. Active years: 1989-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Sunaga. Retrieved from https://idiyas.com/inventor/takashi-sunaga-oegef5pk

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

Calculating rank
USPTO Granted Patents = 11

% Patents Active = 100.0


Average Co-Inventor Count = 4.2

ph-index = 7

Forward Citations = 165(Granted Patents)


Location History:

  • Oura, JP (1989)
  • Moriguchi, JP (1991)
  • Ora, JP (1994)
  • Ohra-gun, JP (1996 - 1998)
  • Gunma-ken, JP (1999 - 2002)
  • Ora-Machi, JP (2002)
  • Ora-gun, JP (1998 - 2003)

Company Filing History:

goldMedal10 out of 8,782 
 
Sanyo Electric Co., Ltd.
 patents
silverMedal2 out of 2,283 
 
Idemitsu Kosan Company, Limited
 patents
where one patent can have more than one assignee

Years Active: 1989-2003

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11 patents (USPTO):Explore Patents
1. 6592347 - Rotary compressor (2003-07-15),
2. 6454960 - Refrigerator using a polyvinyl ether refrigerator oil (2002-09-24),
3. 6435850 - Rotary compressor (2002-08-20),
4. 6035661 - Refrigerant compressor and cooling apparatus comprising the same (2000-03-14),
5. 5956959 - Refrigerant compressor and cooling apparatus comprising the same (1999-09-28),
6. 5806336 - Refrigeration apparatus and lubricating oil composition (1998-09-15),
7. 5704216 - Refrigerating unit (1998-01-06),
8. 5557944 - Refrigerating unit (1996-09-24),
9. 5369287 - Refrigerator oil composition containing phenolic antioxidant amine and (1994-11-29),
10. 4983313 - Refrigerating machine oil composition (1991-01-08),
11. 4800013 - Refrigerator oil composition (1989-01-24),

Title: The Innovative Mind of Takashi Sunaga

Introduction

Takashi Sunaga, hailing from Ora-gun, Japan, is a notable inventor with a remarkable portfolio of 11 patents. His innovative contributions primarily lie in the field of refrigeration technology, where he has made significant strides in improving efficiency and functionality.

Latest Patents

Among his latest innovations are a rotary compressor and a refrigerator utilizing polyvinyl ether refrigerator oil. These patents showcase his commitment to advancing refrigeration technology and highlights his expertise in mechanical engineering.

Career Highlights

Throughout his career, Sunaga has been associated with esteemed companies, including Sanyo Electric Co., Ltd. and Idemitsu Kosan Company, Limited. His work in these organizations has allowed him to develop and refine his inventions, leading to significant advancements in refrigeration systems.

Collaborations

Sunaga's journey in innovation has also seen him collaborate with skilled professionals such as Yasuki Takahashi and Masato Watanabe. These partnerships have undoubtedly enriched his work and fostered a spirit of collaboration, essential for driving innovation.

Conclusion

Takashi Sunaga's contributions to the field of refrigeration exemplify his ingenuity and dedication to enhancing technological solutions. With 11 patents to his name, he continues to inspire future inventors and innovators in Japan and beyond.

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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