Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815603 | Unbreakable and economical optical sensor array and keyboard musical instrument using the same | Shigeru Muramatsu | 2004-11-09 |
TK
Tadaharu Kato
Overall (2004): #106,449 of 270,089Top 40%
1
Patents 2004