Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11214751 | Metalworking oil composition and metalworking method | Naoki Nagase, Hideo Sugii, Keiji Noma, Seikichi Kitabatake, Isao Noguchi +2 more | 2022-01-04 |
| 10886055 | Wound core and manufacturing method thereof | Takahito MIZUMURA, Masato Mizokami, Masao Yabumoto, Toshihiko Uemura, Fumiaki Takahashi | 2021-01-05 |
| 5174833 | Production of grain-oriented silicon steel sheets having an insulating film formed thereon | Osamu Tanaka, Norikazu Fujii, Kikuji Hirose | 1992-12-29 |