Shiga, Japan

Youichi Oonuma

This inventor holds 3 USPTO granted patents. Top assignee: Daikin Industries, Ltd.. Active years: 1998-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Youichi Oonuma. Retrieved from https://idiyas.com/inventor/youichi-oonuma

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Kusatsu, JP (1998)
  • Shiga, JP (1999 - 2003)

Company Filing History:


Years Active: 1998-2003

Loading Chart...
3 patents (USPTO):Explore Patents

Title: Youichi Oonuma: Innovator in Refrigeration Technology

Introduction

Youichi Oonuma is a notable inventor based in Shiga, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of refrigerating machines.

Latest Patents

Oonuma's latest patents include innovative solutions such as a refrigerating machine oil and a refrigerator utilizing this oil. The refrigerating machine oil is designed to effectively remove sludge generated in a refrigerant circuit, facilitating easy return to the compressor. This oil is a mixture of alkylbenzene oil and ether oil, which helps prevent clogging in capillaries while maintaining the lubricating performance of the compressor. Another patent involves a rotary compressor and refrigerating apparatus, where a blade is integrally fixed to a roller, partitioning the cylinder chamber into compression and suction chambers. This design uses a substitute fleon refrigerant, ensuring the oil's integrity within the compressor.

Career Highlights

Oonuma is currently employed at Daikin Industries, Ltd., a leading company in the HVAC industry. His work at Daikin has allowed him to develop and refine technologies that enhance refrigeration systems. His innovative approaches have contributed to the company's reputation for excellence in energy-efficient solutions.

Collaborations

Oonuma has collaborated with notable colleagues such as Shigeharu Taira and Katsumi Sakitani. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies in refrigeration.

Conclusion

Youichi Oonuma's contributions to refrigeration technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in the industry and provide practical solutions that enhance the performance of refrigeration systems.

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]
Loading…