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Dive into the research topics where Oka Toshihiko is active.

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Featured researches published by Oka Toshihiko.


Archive | 2005

VALVE SYSTEM WITH CYLINDER RESTING MECHANISM OF INTERNAL COMBUSTION ENGINE

Takayasu Norio; Oka Toshihiko; Nagira Tetsushi; Ando Satoshi; Murata Shinichi; Tokuhisa Katsunori


Archive | 2001

HYDRAULIC CONTROL DEVICE OF VALVE MECHANISM

Oka Toshihiko; Okuno Takao; Nagira Tetsushi; Nagano Shuji


Archive | 2003

PIPE HAVING PARTITION WALL AND METHOD FOR MANUFACTURING IT

Murata Shinichi; Oka Toshihiko


Archive | 2001

CAST HOLLOW CAMSHAFT

Oka Toshihiko; Okuno Takao; Nagira Tetsushi; Nagano Shuji


Archive | 2003

Moving valve apparatus for internal combustion engine has piston having engagement surface whose edge protrudes from border surface when piston is in non-engaging position

Murata Shinichi; Oka Toshihiko


Archive | 2003

Durchflußwegstruktur eines Hohlrohrs

Murata Shinichi; Oka Toshihiko


Archive | 2005

MOVING VALVE DEVICE WITH CYLINDER REST MECHANISM FOR INTERNAL COMBUSTION ENGINE

Ando Satoshi; Murata Shinichi; Nagira Tetsushi; Oka Toshihiko; Takayasu Norio; Tokuhisa Masanori


Archive | 2005

MOVING VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE

Ando Satoshi; Murata Shinichi; Nagira Tetsushi; Oka Toshihiko; Takayasu Norio; Tokuhisa Masanori


Archive | 2004

Ventilsystem für einen Verbrennungsmotor

Nagano Shuji; Oka Toshihiko; Yoshimoto Koichi


Archive | 2004

OPERATING VALVE DEVICE OF INTERNAL COMBUSTION ENGINE, TO OPEN AND SHUT SUCTION VALVES OR EXHAUST VALVES BY DIFFERENT DRIVING TIMING

Nagano Shuji; Oka Toshihiko; Yoshimoto Koichi

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