Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666542 | Multimedia information add-on system | Toshifumi Kogure, Toshio Watanabe, Mitsuyoshi Yamazaki | 1997-09-09 |
YK
Yoshiyuki Katai
Overall (All Time): #3,724,472 of 4,157,543Top 90%
1
Patents All Time