Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5815560 | Communication service control apparatus | Yoshihiro Kawanabe, Yoshikazu Takeda | 1998-09-29 |
SK
Sadayo Kasai
Overall (All Time): #3,698,145 of 4,157,543Top 90%
1
Patents All Time