Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492040 | Welding construction and heat exchanger using the welding construction | Koji Noishiki, Kenichirou Mitsuhashi, Masahiro Gotou | 2002-12-10 |
| 6430962 | Production method for oxygen | Shinichi Miura, Masayuki Tanaka, Koji Noishiki | 2002-08-13 |