Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402858 | Super-clean steel | — | 2002-06-11 |
| 6277220 | Steel wire rod and process for producing steel for steel wire rod | Takanari Hamada, Yusuke Nakano | 2001-08-21 |
| 4941923 | Water-insoluble black pigment | Teruhito Sotogoshi, Katsunori Nakamura | 1990-07-17 |
| 4682192 | Heat-sensitive recording sheet | Masaharu Nomura, Hiroaki Tsugawa, Hiroomi Hosoi | 1987-07-21 |