Issued Patents All Time
Showing 51–75 of 136 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D408407 | Digital audio disc player | Masafumi Ito, Keiji Tsunoda | 1999-04-20 |
| D405448 | Digital audio disc player | Masafumi Ito | 1999-02-09 |
| D401917 | Disk drive | Masafumi Ito, Yoshinori Fuse | 1998-12-01 |
| D397197 | Air cleaner | Masafumi Ito | 1998-08-18 |
| D391571 | Optical disc player | Masafumi Ito, Keiji Tsunoda, Tooru Katayama | 1998-03-03 |
| D391258 | Combined tuner and amplifier | Masafumi Ito, Hiroyuki Watanabe, Minoru Sube | 1998-02-24 |
| D391259 | Combined tuner and amplifier | Masafumi Ito, Hiroyuki Watanabe, Minoru Sube | 1998-02-24 |
| D386482 | Optical disc drive | Masafumi Ito, Haruki Takita, Katsuhiro Takashima | 1997-11-18 |
| D384356 | Combined audio mixer and tape recorder | Masafumi Ito, Haruki Takita, Katsuhiro Takashima | 1997-09-30 |
| D384045 | Optical disc drive | Masafumi Ito | 1997-09-23 |
| D372915 | Combined tuner and amplifier | Masafumi Ito, Minoru Sube, Haruki Takita, Hiroyuki Watanabe, Yukio Iikura | 1996-08-20 |
| D371783 | Digital audio disc player | Masafumi Ito, Katsuhiro Takashima, Yasunobu Shimizu, Yukio Iikura | 1996-07-16 |
| D370895 | Disk drive unit | Masafumi Ito, Katsuhiro Takashima | 1996-06-18 |
| D368714 | Digital audio tape recorder | Masafumi Ito, Katsuhiro Takashima | 1996-04-09 |
| D367052 | Combined audio mixer and tape recorder | Masafumi Ito, Katsuhiro Takashima, Keiji Tsunoda, Yasunobu Shimizu | 1996-02-13 |
| D366471 | Disk drive unit | Masafumi Ito | 1996-01-23 |
| D365097 | Streaming cassette tape drive for measuring apparatus | Masafumi Ito, Katsuhiro Takashima, Yasunobu Shimizu | 1995-12-12 |
| 5463231 | Method of operating thyristor with insulated gates | Tsuneo Ogura, Kiminori Watanabe, Akio Nakagawa, Yoshihiro Yamaguchi, Norio Yasuhara +2 more | 1995-10-31 |
| D362845 | Streaming cassette tape drive for measuring apparatus | Masafumi Ito, Koji Suzuki | 1995-10-03 |
| D362666 | Digital audio tape recorder | Masafumi Ito, Katsuhiro Takashima, Keiji Tsunoda | 1995-09-26 |
| D362002 | Disk recording/reproducing apparatus | Masafumi Ito, Katsuhiro Takashima | 1995-09-05 |
| D361566 | Video tape recorder | Masafumi Ito, Katsuhiro Takashima, Yasunobu Shimizu | 1995-08-22 |
| D360883 | Data recording and reproducing apparatus | Masafumi Ito, Koji Suzuki | 1995-08-01 |
| 5428228 | Method of operating thyristor with insulated gates | Tsuneo Ogura, Kiminori Watanabe, Akio Nakagawa, Yoshihiro Yamaguchi, Norio Yasuhara +2 more | 1995-06-27 |
| D358378 | Disc drive | Masafumi Ito, Katsuhiro Takashima | 1995-05-16 |