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Dive into the research topics where Koji Kazuoka is active.

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Featured researches published by Koji Kazuoka.


SAE International Congress and Exposition | 1985

DOUBLE-LAYER VALVE SEAT INSERTS FOR PASSENGER CAR DIESEL ENGINES

Naoki Motooka; Nobuhito Kuroishi; Mamoru Moritani; Akira Manabe; Koji Kazuoka; Tetsuya Suganuma

A new double-layer valve seat insert has been developed for use in high performance diesel engine of passenger car. The seat layer is composed of a sintered alloy of a high wear resistance and a high heat resistance. The base layer is composed of a sintered alloy of a higher heat resistance than that of the seat layer. This double-layer valve seat insert was proven to have good wear resistance and heat resistance in a durability test on the diesel engine with a turbocharger system.


Archive | 1984

Method for manufacturing a cam-cam shaft assembly

Tetsuya Suganuma; Koji Kazuoka; Shuichi Fujita; Yoshitaka Takahashi; Katsuhiko Ueda; Hitoshi Nakamura


Archive | 1984

Method for manufacturing a slide member

Tetsuya Suganuma; Koji Kazuoka


Archive | 1982

Anti-wear sintered alloy and manufacturing process thereof

Tetsuya Suganuma; Koji Kazuoka; Shuichi Fujita; Yoshitaka Takahashi; Takeshi Okujo


Archive | 1982

Verfahren zur herstellung eines gleitelements

Tetsuya Suganuma; Koji Kazuoka


Archive | 1984

Siège de soupape pour moteur à combustion interne

Nobuhito C; O Itami Works Kuroishi; Naoki C; O Itami Works Motooka; Tetsuya Suganuma; Koji Kazuoka


Archive | 1982

Verfahren zur herstellung eines gleitelements A process for producing a sliding member

Tetsuya Suganuma; Koji Kazuoka


Archive | 1982

Verfahren zur herstellung einer nocke-nockenwelle-baueinheit Process for the preparation of a cam-cam shaft assembly

Tetsuya Suganuma; Koji Kazuoka; Shuichi Fujita; Yoshitaka Takahashi; Katsuhiko Ueda; Hitoshi Nakamura


Archive | 1982

Verschleissfeste sinterlegierung, verfahren zu deren herstellung und daraus hergestellte nocke Wear-resistant sintered alloy, process for their preparation and derived cam

Tetsuya Suganuma; Koji Kazuoka; Shuichi Fujita; Yoshitaka Takahashi; Takeshi Okuzyo


Archive | 1982

A process for producing a sliding member

Tetsuya Suganuma; Koji Kazuoka

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Mamoru Moritani

Sumitomo Electric Industries

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Naoki Motooka

Sumitomo Electric Industries

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Nobuhito Kuroishi

Sumitomo Electric Industries

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