Location History:
- Shizuoka, JP (1984 - 1988)
- Shizuoka City, JP (1988)
- Tokyo, JP (1994)
Company Filing History:
Years Active: 1984-1994
Title: Keiju Sakaino: Innovator in Compressor Technology
Introduction
Keiju Sakaino is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of compressor technology, holding a total of 4 patents. His work primarily focuses on enhancing the efficiency and reliability of compressors used in refrigeration and air conditioning systems.
Latest Patents
One of Sakaino's latest patents is for a delivery valve for a scroll compressor. This innovative design incorporates a discharge valve into a scroll compressor, which is essential for refrigerators and air conditioners. The valve element seating surface features a concave cylindrical shape, facilitating machining and reducing the top clearance of the compressor without compromising the rigidity of the stationary disk. This design prevents stress concentration on the delivery valve, thereby improving its reliability.
Another significant patent is for a multicylinder rotary compressor. This invention includes multiple cylinders housing rolling pistons, which are rotated by a common crankshaft. Each cylinder is equipped with a separate suction pipe, and at least one of these pipes contains a check valve. This check valve can be closed to unload the connected cylinder, enhancing the compressor's efficiency. The design also incorporates a shape-memory alloy spring that allows for automatic closure of the check valve when a cylinder is to be unloaded.
Career Highlights
Keiju Sakaino is currently employed at Mitsubishi Electric Corporation, where he continues to innovate in the field of compressor technology. His work has significantly impacted the efficiency and functionality of modern refrigeration systems.
Collaborations
Sakaino has collaborated with several talented individuals in his field, including Yoshinori Shirafuji and Sou Suzuki. Their combined expertise has contributed to the development of advanced technologies in compressor design.
Conclusion
Keiju Sakaino's contributions to compressor technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of engineering principles and a dedication to improving the reliability of refrigeration systems.