KH

Koichiro Hayashi

HC Hitachi Powdered Metals Co.: 17 patents #4 of 246Top 2%
EM Elpida Memory: 7 patents #89 of 692Top 15%
ST Sandisk Technologies: 5 patents #524 of 2,224Top 25%
Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%
PS Ps4 Luxco S.A.R.L.: 4 patents #29 of 276Top 15%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
IT Itoki: 2 patents #31 of 73Top 45%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
TC Toyoda Gosei Co.: 2 patents #900 of 2,296Top 40%
IC Itoki Crebio: 2 patents #4 of 22Top 20%
FW Fts Welding: 1 patents #12 of 67Top 20%
LL Longitude Licensing Limited: 1 patents #14 of 27Top 55%
LS Longitude Semiconductor S.A.R.L.: 1 patents #11 of 67Top 20%
IH Ihi: 1 patents #624 of 1,178Top 55%
Overall (All Time): #73,291 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
7040601 Valve guide for internal combustion engine made from iron base sintered alloy Katsunao Chikahata, Katsuaki Sato 2006-05-09
D512251 Desk Tamio Sakurai 2005-12-06
D510492 Desk Tamio Sakurai 2005-10-11
6852143 Turbo component for turbocharger Michiharu Mogami 2005-02-08
6660056 Valve seat for internal combustion engines Hideaki Kawata, Toru Tsuboi 2003-12-09
6616726 Material for valve guides Katsunao Chikahata 2003-09-09
6562098 Wear resistant sintered member Hiroki Fujitsuka, Hideaki Kawata, Tomonori Miyazawa, Koji Koyanagi, Akira Fujiki +4 more 2003-05-13
6340377 High-temperature wear-resistant sintered alloy Hideaki Kawata, Kei Ishii, Yoshimasa Aoki, Atsushi Ehira, Kunio Maki +1 more 2002-01-22
6302937 Sintered alloy having superior wear resistance Yoshimasa Aoki, Koichi Aonuma 2001-10-16
6251157 Sintered alloy having superb wear resistance and process for producing the same Yoshimasa Aoki, Koichi Aonuma, Toru Tsuboi 2001-06-26
6012703 Valve guide and process for manufacturing thereof Katsunao Chikahata 2000-01-11
5952590 Sintered alloy having superb wear resistance and process for producing the same Hideaki Kawata, Katsuaki Sato, Tsutomu Saka 1999-09-14
5949003 High-temperature wear-resistant sintered alloy Yoshimasa Aoki, Kei Ishii, Kouichi Aonuma, Hideaki Kawata, Kunio Maki +4 more 1999-09-07
5834664 Wear-resistant sintered alloy, and its production method Koichi Aonuma, Yoshimasa Aoki 1998-11-10
5824922 Wear-resistant sintered alloy, and its production method Koichi Aonuma, Yoshimasa Aoki 1998-10-20
5326526 Sintered iron alloy composition and method of manufacturing the same Yutaka Ikenoue, Makoto Kano, Akira Fujiki 1994-07-05
5259860 Sintered metal parts and their production method Yutaka Ikenoue, Ryoji Satoh, Katsunao Chikahata 1993-11-09