Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5122288 | Cold rolling oil for steel sheet | Kaoru Shiraishi, Takeru Sharyo, Ryoichiro Takahashi, Masaaki Watanabe, Sakae Sonoda +1 more | 1992-06-16 |
| 5116521 | Aqueous lubrication treatment liquid and method of cold plastic working metallic materials | Hiroyuki Fujii, Tokuo Shirai, Takanori Mizutani, Yoshio Nagae, Koji HETSUGI +1 more | 1992-05-26 |
| 4874480 | Process for treatment of titanium and titanium alloys | Sakae Sonoda, Kouji Hetsugi, Yoshihiko Sawasaki, Yasunobu Matsushima | 1989-10-17 |