Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |