Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228321 | Box annealing furnace method for annealing metal sheet using the same and annealed metal sheet | Akira Umetsu, Hiroyuki Kaito, Hidehiko Kimishima | 2001-05-08 |
| 5192485 | Continuous annealing line having carburizing/nitriding furnace | Koshi Kuramoto, Tsuguhiko Nakagawa, Satoshi Shibuya, Takao Ogawa, Toshikazu Kaihara | 1993-03-09 |
| 4923396 | 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 | 1990-05-08 |
| 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 |
| 4626651 | Apparatus for butt welding steel strips by using a laser beam in a steel strip-processing line | Shigeki Taniguchi, Fumiya Yanagishima, Hiroaki Sasaki | 1986-12-02 |