Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841611 | Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling | Takashi Kusaba, Hideo Abe, Akira Torao, Kusuo Furukawa, Hiroaki Sasaki | 1989-06-27 |