Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333012 | Process for producing ammonium metavanadate | Toshiaki Akahoshi, Akira Sakuma, Aritoshi Inoue | 2001-12-25 |
| 6033637 | Method for treating combustion ashes | Toshiaki Akahoshi, Akira Sakuma, Aritoshi Inoue | 2000-03-07 |
| 5787343 | Method of processing calls between mobile terminals and fixed terminals | Takaaki Kawakami | 1998-07-28 |
| 5519771 | Called subscriber selecting system | — | 1996-05-21 |