Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7110233 | Electronic equipment and electronic equipment activation method | — | 2006-09-19 |
| 6873512 | Electronic equipment and electronic equipment activation method | — | 2005-03-29 |
| 6335974 | Speaker system for television receiver with sound ducts and perforated panels | — | 2002-01-01 |
| 5243656 | Audio circuit | Kikuo Tanida, Kazumi Shoji | 1993-09-07 |