This inventor holds 53 USPTO granted patents and 14 published patent applications, plus 3 CIPO patents and 10 EPO patents, primarily in Refrigeration Technology (CPC class F25B). Top assignees: Nippon Steel Corporation, Mitsubishi Heavy Industries Thermal Systems, Ltd., Nippon Steel Sumitomo Metal Corporation. Active years: 1989-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Inventors with similar research interests:
Location History:
- Sagamihara, JP (1989)
- Kanagawaken, JP (1992 - 1993)
- Chiba, JP (1998)
- Futtsu City, Chiba, JP (2001)
- Shiga-ken, JP (2003)
- Tokai, JP (2005)
- Aichi-ken, JP (2008)
- Futtsu, JP (1997 - 2014)
- Toyonaka, JP (2015)
- Tokyo, JP (2004 - 2024)
Company Filing History:
21 out of 3,721 
16 out of 173 
6 out of 1,102 
Years Active: 1989-2026
Areas of Expertise:
Title: **Yasushi Hasegawa: Innovator in Refrigeration Technology**
Introduction
Yasushi Hasegawa, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of refrigeration technology. With a remarkable portfolio of 50 patents, his innovations have advanced the efficiency and functionality of refrigeration systems. Hasegawa's latest inventions showcase his dedication to improving control mechanisms and the overall performance of refrigeration units.
Latest Patents
Hasegawa's recent patents include a control device and method for detecting abnormal operation states in parallel refrigerators. This invention allows for the detection of surging and droplet suction based on current deviations flowing through the electric motors that operate multiple compressors. Additionally, he has developed a turbo compressor and centrifugal chiller designed to reduce shaft length and suppress rotational shake, leading to more compact devices. These advancements not only enhance operational efficiency but also pave the way for smaller, more versatile refrigeration solutions.
Career Highlights
Hasegawa's impressive career includes experiences at esteemed companies such as Nippon Steel Corporation and Mitsubishi Heavy Industries Thermal Systems, Ltd. His work in these organizations has played a pivotal role in shaping modern refrigeration technologies. Hasegawa's patents reflect his commitment to innovation and demonstrate significant improvements in refrigeration control systems.
Collaborations
Throughout his career, Yasushi Hasegawa has collaborated with talented individuals such as Kenji Ueda and Hisashi Naoi. These partnerships have further enriched his inventions, leading to collaborative advancements in the technology sector. Working alongside such skilled colleagues has allowed Hasegawa to enhance his creative output and technical proficiency.
Conclusion
Yasushi Hasegawa stands out as a leading inventor in refrigeration technology, with a robust patent portfolio that highlights his innovative spirit. His recent patents not only demonstrate meticulous engineering but also contribute significantly to the industry's evolution. As technology continues to advance, Hasegawa's work remains integral in the pursuit of efficient and effective refrigeration solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile