Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824588 | Apparatus and method for purifying air used in cryogenic air separation | Morimitsu Nakamura, Kazuhiko Fujie, Yasuo Tatsumi | 2004-11-30 |
| 6767386 | Method and apparatus for producing nitrogen | Akihiro Nakamura, Masayoshi Hayashida, Yoshinori Watanabe, Shinichi Marumo | 2004-07-27 |
| 6752851 | Gas separating and purifying method and its apparatus | Akihiro Nakamura, Tooru Nagasaka, Shigeru Hayashida | 2004-06-22 |