Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6882713 | Telephone apparatus | Hajime Sakai, Youji Manabe, Yuji Hirai, Hideyuki Matsuo, Kentaro Oka | 2005-04-19 |
| 5519765 | Telephone answering machine | Keiko Sonoda | 1996-05-21 |
TS
Toshiaki Sakiyama
Overall (All Time): #2,179,394 of 4,157,543Top 55%
2
Patents All Time