Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775654 | Digital audio reproducing apparatus | Kazuhisa Matsushima, Hiroshi Okubo, Tadayoshi Katoh, Takashi Saito | 2004-08-10 |
| 6730743 | Rubber composition | Ryuji Nakagawa | 2004-05-04 |