Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700052 | Chair for an acoustically designed building | Ryokichi Yamazaki, Takeshi Sakai | 1997-12-23 |
| 5642425 | Sound field control device | — | 1997-06-24 |
FK
Fukushi Kawakami
Overall (1997): #40,580 of 185,788Top 25%
2
Patents 1997