Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5567493 | Die for extrusion of multi-hole tube and multi-hole tube made with the die | Toshihiro Imai, Ken Yamamoto, Shingoro Fukuoka | 1996-10-22 |
| 5116521 | Aqueous lubrication treatment liquid and method of cold plastic working metallic materials | Hiroyuki Fujii, Takanori Mizutani, Yoshio Nagae, Koji HETSUGI, Yasuo Tanizawa +1 more | 1992-05-26 |
| 4900459 | Metal processing lubricating oil composition and process for producing the same | Toshihide Ohmori, Kazuhiko Kitamura, Masuhiko Kawamura, Atsushi Danno, Yukio Sugiura +1 more | 1990-02-13 |
| 4847968 | Forging method for producing a pulley | Kazuhiro Morita | 1989-07-18 |