This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd.. Active years: 1981-1983.
Company Filing History:
3 out of 42,726 
2 out of 1,641 Years Active: 1981-1983
Title: Norihiro Ooki: Innovator in Electrical Engineering
Introduction
Norihiro Ooki is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of electrical engineering, particularly in the design of components for dynamo-electric machines. With a total of 3 patents to his name, Ooki's work has had a lasting impact on the industry.
Latest Patents
Ooki's latest patents include innovative designs that enhance the functionality and efficiency of electrical machines. One of his notable inventions is a brush holder with a coated clamp for dynamo-electric machines. This brush holder features a brush that makes sliding contact with a rotary collector, a stationary holder part, and a detachable holder part that secures the brush. The design includes a retainer that clamps the brush when detached and unclamps it when attached, reducing issues such as brush jumping and sparking.
Another significant patent is the slip ring cooling device for electrical rotary machines. This device comprises multiple closed chambers that extend axially in the slip ring's peripheral portion. The design allows for the uniform distribution of a volatile liquid, which evaporates and cools the slip ring through a pressure difference, enhancing the performance and longevity of the machine.
Career Highlights
Throughout his career, Norihiro Ooki has worked with prominent companies such as Hitachi, Ltd. and Hitachi Chemical Company, Ltd. His experience in these organizations has contributed to his expertise in electrical engineering and innovation.
Collaborations
Ooki has collaborated with notable colleagues, including Shoji Motegi and Yasuyuki Wachi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Norihiro Ooki's contributions to electrical engineering through his patents and collaborations highlight his role as an influential inventor. His innovative designs continue to shape the future of dynamo-electric machines and related technologies.