Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347587 | Speaker driving device | Toru Hayase, Kunihiko Ohbayashi | 1994-09-13 |
RT
Ryutaro Takahashi
Overall (1994): #71,723 of 165,921Top 45%
1
Patents 1994