Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7206395 | Telephone apparatus | Osamu Yamamoto, Hiroyuki Igarashi | 2007-04-17 |
| 6879824 | Portable telephone device | Tetsuro Otsubo, Kazunori Maekawa | 2005-04-12 |
| 5844691 | Facsimile server apparatus, a sound server apparatus, and a facsimile and sound server apparatus | Takao Nishiyama, Yasuki Iizuka, Takashi Matsuo, Takashi Mitoh | 1998-12-01 |