Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11623306 | Brazing filler material for bonding iron-based sintered member, and method for producing iron-based sintered part | Hiroshi Ohmori, Yuji Yamanishi | 2023-04-11 |
| 7556864 | Sintered gear | Yuji Yamanishi, Ryoji Sato, Kei Ishii, Tomoaki Arakawa, Jyun-ichi Yamada +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 |
| 7156743 | Mechanical fuse and method of manufacturing the same | Kei Ishii, Yoshihiro Tanimura, Kouji Yamada, Yuuichi Aoki | 2007-01-02 |
| 7078112 | Mechanical fuse and production method for the same | Takashi Suzuki, Kei Ishii, 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 |
| 6228138 | Good machinability Fe-based sintered alloy and process of manufacture therefor | Yuuji Yamanishi, Kei Ishii | 2001-05-08 |
| 5967110 | Fe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing cap | Bo Hu, Kei Ishii, Hideo Shikata, Jun Sakai | 1999-10-19 |
| 5819154 | Manufacturing process of sintered iron alloy improved in machinability, mixed powder for manufacturing, modification of iron alloy and iron alloy product | Bo Hu, Kei Ishii, Hideo Shikata, Jun Sakai | 1998-10-06 |
| 5682588 | Method for producing ferrous sintered alloy having quenched structure | Kei Ishii, Hideo Shikata, Sumihisa Kotani | 1997-10-28 |
| 5049183 | Sintered machine part and method | Tsutomu Saka, Akira Fujiwara, Osamu Murai, Kei Ishii | 1991-09-17 |