Issued Patents 1989
Showing 1–4 of 4 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, Takayuki Yanagimoto, Hiroaki Sasaki | 1989-06-27 |
| 4836774 | Method and apparatus for heating a strip of metallic material in a continuous annealing furnace | Masahiro Harada, Kenichi Yanagi, Takeo Fukushima, Naohiko Soeda, Norio Ohta +2 more | 1989-06-06 |
| 4798772 | Steel sheets for painting and a method of producing the same | — | 1989-01-17 |
| 4795681 | Steel sheets for painting and a method of producing the same | Teruo Fujiwara | 1989-01-03 |