Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6483746 | Electronic apparatus | Masahiko Haraguchi | 2002-11-19 |
| 5020099 | Private branch exchange | — | 1991-05-28 |
| 5010569 | Telephone-call distributor | — | 1991-04-23 |
HK
Hiromi Katagawa
Overall (All Time): #1,619,165 of 4,157,543Top 40%
3
Patents All Time