Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7224816 | Waved/corrugated and stepped surface design for speaker box, and method of standardization of speaker box assemblies for television of different screen sizes | Ryoji Naito | 2007-05-29 |
| 6580802 | Waved/corrugated and stepped surface design for speaker box, and method of standardization of speaker box assemblies for television of different screen sizes | Ryoji Naito | 2003-06-17 |