Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE41469 | Optical disk recording method employing a plurality of recording areas and apparatus therefor | Yoshiro Kashiwabara, Yasuhiro Wada, Keisuke Umeda | 2010-08-03 |
| RE38704 | Optical disk recording method employing a plurality of recording areas and apparatus therefor | Yoshiro Kashiwabara, Yasuhiro Wada, Keisuke Umeda | 2005-02-15 |
| 5986988 | Optical disk recording method employing a plurality of recording areas and apparatus therefor | Yoshiro Kashiwabara, Yasuhiro Wada, Keisuke Umeda | 1999-11-16 |
| 5751676 | Optical disk recording and reproducing method and apparatus therefor | Yoshiro Kashiwabara, Yasuhiro Wada, Keisuke Umeda | 1998-05-12 |