Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10461104 | Friction material | Katsuji Seki | 2019-10-29 |
| 10060492 | Friction material | Yoichi Onda, Hiroshi Yamamoto, Satoshi Kusaka, Katsuji Seki | 2018-08-28 |
| 9656921 | Friction material composition and friction material | Takuya Kitami, Katsuji Seki | 2017-05-23 |
| 9541144 | Vehicular disc brake rotor and manufacturing method of vehicular disc brake rotor | Katsuji Seki, Takuya TAKADA | 2017-01-10 |
| 9422994 | Manufacturing method of cast-iron friction member | Katsuji Seki, Takuya TAKADA | 2016-08-23 |
| 8197731 | Granules and friction material, and manufacturing method thereof | Hiroshi Idei | 2012-06-12 |
| 7820239 | Method of manufacturing iron member | Hiroshi Idei, Hisao Kamii, Akinori Hashimoto, Masanori Kato | 2010-10-26 |
| 7416061 | Brake member and bonding method | Hiroshi Idei, Sho Kurihara, Katsuhiro Kikuchi, Yoshihiro Aoyagi | 2008-08-26 |
| 6265356 | Granules of raw material for friction material and method of manufacturing the same | — | 2001-07-24 |