KI

Kei Ishii

HC Hitachi Powdered Metals Co.: 18 patents #1 of 246Top 1%
Nissan Motor Co.: 6 patents #1,257 of 8,689Top 15%
DE Denso: 4 patents #3,129 of 11,792Top 30%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
MC Mitsubishi Steel Mfg. Co.: 1 patents #53 of 145Top 40%
Overall (All Time): #259,251 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
7556864 Sintered gear Yuji Yamanishi, Ryoji Sato, Tomoaki Arakawa, Jyun-ichi Yamada, Tadayuki Tsutsui +1 more 2009-07-07
7309465 Sintered sprocket for silent chain and production method therefor Akira Fujiki, Yukihiro Maekawa, Yutaka Mabuchi, Takashi Murata, Takashi Suzuki +2 more 2007-12-18
7273527 Production method for powdered core Chio Ishihara, Kazuo Asaka, Tamio Takada, Tsuyoshi Akao, Isao Makino 2007-09-25
7211158 Production method for powdered core Chio Ishihara, Kazuo Asaka, Tamio Takada, Tsuyoshi Akao, Isao Makino 2007-05-01
7156743 Mechanical fuse and method of manufacturing the same Tadayuki Tsutsui, Yoshihiro Tanimura, Kouji Yamada, Yuuichi Aoki 2007-01-02
7078112 Mechanical fuse and production method for the same Takashi Suzuki, Tadayuki Tsutsui, Yoshihiro Tanimura 2006-07-18
7041149 Sintered sprocket for silent chain and production method therefor Akira Fujiki, Yukihiro Maekawa, Yutaka Mabuchi, Takashi Murata, Takashi Suzuki +2 more 2006-05-09
6340377 High-temperature wear-resistant sintered alloy Hideaki Kawata, Koichiro Hayashi, Yoshimasa Aoki, Atsushi Ehira, Kunio Maki +1 more 2002-01-22
6228138 Good machinability Fe-based sintered alloy and process of manufacture therefor Yuuji Yamanishi, Tadayuki Tsutsui 2001-05-08
5967110 Fe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing cap Tadayuki Tsutsui, Bo Hu, Hideo Shikata, Jun Sakai 1999-10-19
5949003 High-temperature wear-resistant sintered alloy Yoshimasa Aoki, Koichiro Hayashi, Kouichi Aonuma, Hideaki Kawata, Kunio Maki +4 more 1999-09-07
5819154 Manufacturing process of sintered iron alloy improved in machinability, mixed powder for manufacturing, modification of iron alloy and iron alloy product Bo Hu, Tadayuki Tsutsui, Hideo Shikata, Jun Sakai 1998-10-06
5753005 Source powder for wear-resistant sintered material Yoshimasa Aoki, Yukio Tokuyama, Yuji Soda 1998-05-19
5682588 Method for producing ferrous sintered alloy having quenched structure Tadayuki Tsutsui, Hideo Shikata, Sumihisa Kotani 1997-10-28
5529602 Sintered iron alloy resistant to abrasion at high temperature and method of manufacturing the same Yoshimasa Aoki, Hideaki Kawata, Akira Fujiki, Katsuyuki Nakamura, Kazuhiko Takahashi 1996-06-25
5049183 Sintered machine part and method Tsutomu Saka, Akira Fujiwara, Tadayuki Tsutsui, Osamu Murai 1991-09-17
4778522 Wear resistant iron-base sintered alloy Yoshihiro Maki, Makoto Kano, Akira Fujiki, Ichiro Tanimoto, Hiroyuki Endo +1 more 1988-10-18
4648903 Iron base sintered, wear-resistant materials and method for producing the same Yutaka Ikenoue, Hiroyuki Endoh, Keitaro Suzuki 1987-03-10