Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792121 | Audio signal amplifier circuit and portable telephone set and portable electronic device using the same audio signal amplifier circuit | Masanori Fujisawa | 2004-09-14 |
YK
Yasuyuki Koyama
Overall (2004): #85,249 of 270,089Top 35%
1
Patents 2004