Location History:
- Saitama, JP (1992)
- Okegawa, JP (1996)
Company Filing History:
Years Active: 1992-1996
Title: Tsutomu Oka: Innovator in Engine Valve Technology
Introduction
Tsutomu Oka is a notable inventor based in Okegawa, Japan. He has made significant contributions to the field of engine valve technology, holding a total of 3 patents. His work focuses on improving the performance and durability of engine components.
Latest Patents
One of Tsutomu Oka's latest patents is for an engine valve that features improved high-temperature wear resistance. This innovative valve is constructed from an Fe-based alloy with a specific composition that includes elements such as carbon, manganese, chromium, molybdenum, nickel, nitrogen, silicon, and optional elements like niobium, tantalum, and tungsten. The valve's design incorporates a two-phase structure consisting of an austenitic phase and an eutectic carbide phase, enhancing its durability under extreme conditions. Additionally, the Fe-based alloys are applied to the valve face using advanced techniques such as plasma beam or laser beam coating.
Another patent involves an apparatus for applying hard facing to valves. This fillet welding apparatus is designed for internal combustion engine valves and includes a storage station for valve blanks, a welding torch, and a feed apparatus that counts and transports the valves to a testing station. This innovation streamlines the manufacturing process and ensures high-quality production.
Career Highlights
Tsutomu Oka is currently employed at Mitsubishi Materials Corporation, where he continues to develop cutting-edge technologies in the field of engine components. His expertise and innovative spirit have made him a valuable asset to the company.
Collaborations
Throughout his career, Tsutomu Oka has collaborated with talented individuals such as Yoshiharu Mae and Akira Mitsuhashi. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Tsutomu Oka's contributions to engine valve technology exemplify his dedication to innovation and excellence. His patents reflect a deep understanding of materials science and engineering, positioning him as a key figure in the automotive industry.