Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5433798 | High strength martensitic stainless steel having superior rusting resistance | Koji Takano, Satoshi Araki, Takayoshi Matsui, Wataru Murata, Koichi Yoshimura | 1995-07-18 |
| 5194222 | Alloy and composite steel tube with corrosion resistance in combustion environment where V, NA, S and C1 are present | Hiroyuki Ogawa, Tetsuo Ishitsuka, Kozo Denpo, Akihiro Miyasaka, Michihisa Ito | 1993-03-16 |
| 4463061 | Boiler tube having improved high temperature mechanical strength, improved high temperature corrosion resistant property and resistance to embrittlement during service | Yasuo Otoguro, Mikio Yamanaka, Katukuni Hashimoto, Masao Onoyama | 1984-07-31 |