Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6373421 | Voice recording/reproducing device by using adaptive differential pulse code modulation method | Itsuo Uchiyama | 2002-04-16 |
| 6344249 | Multi-layered article | Takeshi Hara, Yoshihiro Terada, Takao Ota | 2002-02-05 |