Issued Patents All Time
Showing 26–50 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D408820 | Audio mixer | Masafumi Ito, Yasunobu Shimizu | 1999-04-27 |
| D402984 | Combined audio mixer and tape recorder | Masafumi Ito, Yasunobu Shimizu | 1998-12-22 |
| D401586 | Audio remote controller | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1998-11-24 |
| D396719 | Digital audio tape recorder | Masafumi Ito, Katsuhiro Takashima | 1998-08-04 |
| D394059 | Digital audio tape recorder | Masafumi Ito, Katsuhiro Takashima | 1998-05-05 |
| D391957 | Optical disc player | Masafumi Ito, Katsuhiro Takashima, Yasunobu Shimizu | 1998-03-10 |
| D389128 | Optical disc drive | Masafumi Ito, Katsuhiro Takashima, Yasunobu Shimizu | 1998-01-13 |
| D387760 | Combined digital audio disc player, radio tuner, amplifier and tape recorder | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1997-12-16 |
| D386482 | Optical disc drive | Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima | 1997-11-18 |
| D385275 | Digital audio disc player | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1997-10-21 |
| D384356 | Combined audio mixer and tape recorder | Masafumi Ito, Shigeru Hasegawa, Katsuhiro Takashima | 1997-09-30 |
| D374233 | Speaker box | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1996-10-01 |
| D372915 | Combined tuner and amplifier | Masafumi Ito, Shigeru Hasegawa, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1996-08-20 |
| D367275 | Combined amplifier and radio tuner | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1996-02-20 |
| D365822 | Front panel for a combined digital audio disc player, radio receiver, amplifier tape recorder and speakers | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1996-01-02 |
| D353440 | Water purifier | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1994-12-13 |
| D351932 | Air cleaner | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1994-11-01 |
| D350355 | Graphic equalizer | Masafumi Ito, Minoru Sube | 1994-09-06 |
| D349288 | Combined digital audio disc player and radio receiver | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1994-08-02 |
| D345561 | Combined tape recorder and amplifier | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1994-03-29 |
| D344940 | Video tape recorder | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1994-03-08 |
| D343393 | Combined digital audio disc player, radio receiver, amplifier and tape recorder | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1994-01-18 |
| D342255 | Loudspeaker box | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe | 1993-12-14 |
| D341832 | Combined amplifier and radio receiver | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1993-11-30 |
| D339587 | Combined digital audio disk player and tape recorder | Masafumi Ito, Minoru Sube, Hiroyuki Watanabe, Yukio Iikura | 1993-09-21 |