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Featured researches published by Hiromi Yokota.


Jsae Review | 1999

Development of anti-corrosive and wear resistant copper alloy for bushings

Toshihiko Kira; Hiromi Yokota; Soji Kamiya

Abstract Recent diesel engines require higher performance and longer life. Due to high cylinder pressure, the operating unit load and temperature of piston pin bushings become high. Therefore, good load carrying capacity, wear resistance and corrosion resistance are required for piston pin bushings. For this reason, we have studied the effect of elements added to copper alloy for corrosion resistance and the effects of hard particles added into the copper matrix for wear resistance and the machinability of materials. Based on the experimental results, we have developed a new bushing material which improves the wear resistance and the corrosion resistance.


Archive | 1998

Copper-base sintered sliding material excellent in slipperiness and machinability

Toshihiko Kira; Hiromi Yokota; Youichiro Kitagawa; Eichi Sato


Archive | 2005

Pb-free copper-alloy sliding material

Hiromi Yokota; Daisuke Yoshitome; Hiroaki Kobayasi; Hiroyuki Kawaguti


Archive | 2005

Pb-free bearing used for fuel-injection pump

Hiromi Yokota; Daisuke Yoshitome; Hiroaki Hayakawa; Naruhiko Kariya-shi Aichi Inayoshi; Youichi Murakami; Masashi Suzuki; Takahiro Nozu


Archive | 2008

Pb-FREE COPPER ALLOY SLIDING MATERIAL AND PLAIN BEARINGS

Hiromi Yokota; Ryo Mukai; Shinichi Kato; Nahomi Hamaguchi


Archive | 2007

Lead-free copper alloy sliding material

Hiromi Yokota; Daisuke Yoshitome


Archive | 2004

Pb-FREE BEARING FOR FUEL INJECTION PUMP

Hiroaki Hayakawa; Shigehiko Inayoshi; Yoichi Murakami; Takahiro Nosu; Masashi Suzuki; Hiromi Yokota; Daisuke Yoshitome; 大輔 吉留; 宏明 早川; 洋一 村上; 裕美 横田; 成彦 稲吉; 敬弘 野須; 雅詞 鈴木


Archive | 2010

LEAD-FREE COPPER-BASED SINTERED SLIDING MATERIAL AND SLIDING PARTS

Ryo Mukai; Atsushi Koyama; Nahomi Hamaguchi; Kao Mouri; Hiromi Yokota


Archive | 2009

SLIDING COMPONENT CONSISTING OF Pb-FREE Cu-Bi TYPE SINTERED MATERIAL

Ryo Mukai; Hiromi Yokota; Kao Mouri


Archive | 2004

COMPOSITE SLIDING MATERIAL SUPERIOR IN SEIZURE RESISTANCE MADE OF Pb-FREE COPPER ALLOY

Akira Mukai; Hiromi Yokota; Daisuke Yoshitome; 大輔 吉留; 亮 向井; 裕美 横田

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