Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D658163 | Microphone | — | 2012-04-24 |
| D580436 | Transmitter | Masaaki Kiyomiya, Kazuyuki Fujii | 2008-11-11 |
| D580437 | Receiver | Masaaki Kiyomiya, Kazuyuki Fujii | 2008-11-11 |
| D555632 | Digital audio disc player | — | 2007-11-20 |
| D522985 | Digital audio disk player with radio tuner and tape recorder | Shigeru Hasegawa, Hiroyuki Watanabe | 2006-06-13 |
| D506471 | Data memory storage drive | Satoshi Sukeguchi | 2005-06-21 |
| D447469 | Digital audio disc player | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 2001-09-04 |
| D444138 | Combined amplifier and tuner | Masafumi Ito, Minoru Sube | 2001-06-26 |
| D443868 | Combined digital audio disc player, amplifier and tuner | Masafumi Ito, Hiroyuki Watanabe | 2001-06-19 |
| D442937 | Combined record player, radio tuner and amplifier | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 2001-05-29 |
| D442573 | Combined digital audio disc player, radio tuner and amplifier | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 2001-05-22 |
| D441351 | Combined digital audio disc player, amplifier and tuner | Masafumi Ito, Hiroyuki Watanabe | 2001-05-01 |
| D439240 | Speaker box | Masafumi Ito, Hiroyuki Watanabe, Minoru Sube | 2001-03-20 |
| D439239 | Speaker box | Masafumi Ito, Hiroyuki Watanabe | 2001-03-20 |
| D439236 | Combined digital audio disc player and tape recorder | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 2001-03-20 |
| D436942 | Combined amplifier and tuner | Masafumi Ito, Hiroyuki Watanabe | 2001-01-30 |
| D434749 | Combined digital audio disc player, amplifier and tuner | Masafumi Ito, Keiji Tsunoda, Hiroyuki Watanabe, Ayumi Kobayashi | 2000-12-05 |
| D431238 | Combined digital audio disc player, amplifier and tuner | Masafumi Ito, Hiroyuki Watanabe | 2000-09-26 |
| D428404 | Digital audio disc player | Masafumi Ito, Hiroyuki Watanabe | 2000-07-18 |
| D426824 | Tape recorder | Masafumi Ito, Hiroyuki Watanabe | 2000-06-20 |
| D425061 | Digital audio disc recorder | Masafumi Ito, Hiroyuki Watanabe | 2000-05-16 |
| D423499 | Combined digital audio disc player, radio tuner, amplifier, tape recorder and record player | Masafumi Ito, Hiroyuki Watanabe | 2000-04-25 |
| D415758 | Digital audio disc player | Masafumi Ito, Hiroyuki Watanabe | 1999-10-26 |
| D410923 | Digital audio disc player | Masafumi Ito, Hiroyuki Watanabe | 1999-06-15 |
| D406589 | Audio remote controller | Masafumi Ito | 1999-03-09 |