Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669116 | Orifice plate | — | 2003-12-30 |
| 6599467 | Process for forging titanium-based material, process for producing engine valve, and engine valve | Toshiya Yamaguchi, Akio Hotta, Yoshinori Shibata, Tadahiko Furuta, Takashi Saito +2 more | 2003-07-29 |
| 5964120 | Hot extrusion forging die for use in titanium alloy | Mikiharu Yoshizaka, Shigeki Yamada, Hiroyuki Fujimoto | 1999-10-12 |
| 5056219 | Method of manufacturing hollow engine valve | — | 1991-10-15 |
| 4468867 | Drying apparatus | — | 1984-09-04 |