Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803242 | Diaphragm for loudspeakers | Kousaku Murata, Satoshi Takayama, Hiroyuki Takewa, Tsuneo Tanaka | 1989-02-07 |
SS
Shuji Saiki
Overall (1989): #56,987 of 140,708Top 45%
1
Patents 1989