Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835287 | Apparatus, method for enrichment of the heavy isotope oxygen and production method for heavy oxygen water | Hitoshi Kihara, Hiroshi Tachibana, Hiroshi Kawakami | 2004-12-28 |
| 6752851 | Gas separating and purifying method and its apparatus | Masato Kawai, Akihiro Nakamura, Tooru Nagasaka | 2004-06-22 |