Otsu, Japan

Hiromasa Ashitani

This inventor holds 7 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1999-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromasa Ashitani. Retrieved from https://idiyas.com/inventor/hiromasa-ashitani

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


% Patents Active = 42.9

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 276(Granted Patents)


Location History:

  • Shiga, JP (2000 - 2005)
  • Otsu, JP (1999 - 2006)

Company Filing History:


Years Active: 1999-2006

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7 patents (USPTO):Explore Patents

Title: Hiromasa Ashitani: Innovator in Refrigeration Technology

Introduction

Hiromasa Ashitani is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 7 patents. His innovative designs have advanced the efficiency and functionality of cooling systems.

Latest Patents

Among his latest patents, Ashitani has developed a refrigerant pump with rotors in bearing. This refrigerant pump features a thin-walled hermetic vessel and a thick-walled hermetic vessel, with a stator of an electric motor unit fitted outside the thin-walled vessel. The rotor is accommodated inside the thin-walled vessel, and a pump mechanism is located within the thick-walled vessel. The rotational force of the rotor is transmitted to the pump mechanism via a drive shaft. Another notable invention is a semiconductor cooling device, which includes a cold plate for cooling a semiconductor element, a condenser, and an inverter-controlled refrigerant pump. These components are fluid-connected in series to create a refrigerating cycle, and the device is equipped with a fan, a temperature detector, and a controller for optimal performance.

Career Highlights

Hiromasa Ashitani is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate and develop advanced refrigeration technologies. His work has been instrumental in enhancing the efficiency of cooling systems used in various applications.

Collaborations

Throughout his career, Ashitani has collaborated with notable colleagues, including Masao Nakano and Takashi Morimoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hiromasa Ashitani's contributions to refrigeration technology exemplify his dedication to innovation. His patents reflect a commitment to improving cooling systems, making a lasting impact in the industry.

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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