Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7748164 | Micro gravity environmental control apparatus and micro gravity environmental control method | Masayuki Hirafuji, Kei Tanaka, Keiko Ibaraki | 2010-07-06 |
| 7399127 | Autonomous operation control system | Masayuki Hirafuji | 2008-07-15 |