This inventor holds 7 USPTO granted patents and 5 published patent applications and 3 EPO patents. Top assignees: Hitachi, Ltd., Hitachi Industrial Equipment Systems Co., Ltd., Hitachi-Johnson Controls Air Conditioning, Inc.. Active years: 2019-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
5 out of 42,731 
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1 out of 95 
Years Active: 2019-2022
Title: Masanao Kotani: Innovator in Fluid Machinery
Introduction
Masanao Kotani is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of fluid machinery, holding a total of 7 patents. His innovative designs focus on enhancing the efficiency and effectiveness of compressors and fluid machines.
Latest Patents
One of his latest patents is a liquid-cooled type compressor featuring first and second nozzle injection ports with different characteristics. This invention effectively cools air during the compression process at a high stage while maintaining oil supply at the same pressure in both low and high stages. The compressor includes a body, at least one first nozzle, and at least one second nozzle, each equipped with multiple injection ports. The second nozzle's injection ports have a larger diameter than those of the first nozzle, optimizing refrigerant supply within the compressor body.
Another notable patent is for a fluid machine designed to disperse liquid extensively within a working chamber. This machine consists of a screw rotor and a casing that accommodates it. The liquid supply section allows for the introduction of liquid from outside the machine, ensuring that the liquid is dispersed along the longitudinal direction of the screw rotor's tooth groove, rather than across its width.
Career Highlights
Masanao Kotani has worked with reputable companies such as Hitachi, Ltd. and Hitachi Industrial Equipment Systems Co., Ltd. His experience in these organizations has contributed to his expertise in fluid machinery and compressor technology.
Collaborations
Throughout his career, Kotani has collaborated with notable colleagues, including Sachio Sekiya and Takeshi Tsuchiya. These partnerships have fostered innovation and development in their respective fields.
Conclusion
Masanao Kotani's contributions to fluid machinery through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in compressor technology and fluid dynamics.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile