Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6279443 | Die cut roll | Kenji Nakahara, Koichi Ibusuki, Shouji Eguchi, Kohei Kitahara, Shigeya Sakaguchi | 2001-08-28 |
| 5545248 | Titanium-base hard sintered alloy | Tetsunori Kitada, Hironobu Shinoaki, Shigeya Sakaguchi | 1996-08-13 |
| 4997192 | Mechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing same | Yataro Nagai, Mitsuyoshi Matsushita, Osamu Ishibashi, Kiyoshi Terasaki | 1991-03-05 |
| 4925490 | Mechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing same | Yataro Nagai, Mitsuyoshi Matsushita, Osamu Ishibashi, Kiyoshi Terasaki | 1990-05-15 |