This inventor holds 3 USPTO granted patents. Top assignees: Nippon Oil Company, Matsushita Electric Industrial Co., Ltd.. Active years: 1979-1985.
Location History:
- Kawasaki, JP (1979 - 1981)
- Yokohama, JP (1985)
Company Filing History:

Years Active: 1979-1985
Title: Masaaki Tsunemi: Innovator in Refrigeration Technology
Introduction
Masaaki Tsunemi is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 3 patents. His work focuses on developing advanced refrigeration oil compositions that enhance the efficiency and performance of refrigeration systems.
Latest Patents
Tsunemi's latest patents include a refrigeration oil composition that comprises a bicyclic compound designed to improve the dynamic viscosity of the oil at 40°C. This innovative composition is formulated to include various additives that inhibit wear, oxidation, and foaming. Another significant patent involves refrigeration lubricating oil compositions, which are specifically designed for rotary-type compressors used in refrigeration equipment. This composition blends polyglycol oil with specific additives, including glycidyl ether type epoxy compounds and epoxidized vegetable oils, to optimize lubrication performance.
Career Highlights
Throughout his career, Masaaki Tsunemi has worked with prominent companies such as Nippon Oil Company and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has allowed him to refine his expertise in refrigeration technologies and contribute to innovative solutions in the industry.
Collaborations
Tsunemi has collaborated with notable colleagues, including Umekichi Sasaki and Kaichi Yamada. These partnerships have fostered a collaborative environment that has led to the development of groundbreaking technologies in refrigeration.
Conclusion
Masaaki Tsunemi's contributions to refrigeration technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovative approaches continue to shape the future of refrigeration systems.