Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6526840 | Method for measuring sound absorption power of a theater chair with a human being seated thereon and a dummy sound absorber | Takeshi Sakai | 2003-03-04 |
KF
Kawakami Fukushi
Overall (2003): #185,855 of 273,478Top 70%
1
Patents 2003