Takehiro Saruwatari

Steering device for vehicle, has speed reduction mechanism with pulleys and belt where belt is toothed helicoidal belt, and pulleys are constituted by toothed helicoidal pulleys engaging with helicoidal belt

Tetsuya Murakami, Takehiro Saruwatari, Hiroshi Yamato-Koriyama Murataka, 2004 .

Steering system, converts rotation of steering assistance motor into displacement of steering column using ball screw spindle mechanism, and female and male thread grooves enter in contact with balls

Tetsuya Murakami, Takehiro Saruwatari, 2004 .

An electric power steering device

Takehiro Saruwatari, Hiroshi Yamato-Koriyama Murataka, Akihiro Yamato-Koryama Hironaka, 2004 .

The steering apparatus of the vehicle

Takehiro Saruwatari, Osamu Sano, Atsuya Miyata, 2003 .