Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7001480 | Synthetic chloroprene rubber adhesive composition and process for producing speaker by using the same | Yoshio Baba, Kazutami Wakabayashi | 2006-02-21 |
| 6341167 | Speaker | Masatoshi Okuyama, Masahide Sumiyama, Mutsufumi Fujii | 2002-01-22 |