Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274196 | Apparatus and method for exchanging an atmosphere of spherical object | Katsumi Amano | 2001-08-14 |
| 6129045 | Apparatus and method for exchanging an atmosphere of spherical object | Katsumi Amano | 2000-10-10 |