Issued Patents All Time
Showing 25 most recent of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D462671 | Video disc recorder | Shigeru Hasegawa | 2002-09-10 |
| D445791 | Optical disc drive | Masafumi Ito, Shigeru Hasegawa, Hiroyuki Watanabe | 2001-07-31 |
| D432081 | Digital-analog converter | Masafumi Ito, Shigeru Hasegawa | 2000-10-17 |
| D429705 | Video tape recorder | Masafumi Ito, Shigeru Hasegawa, Hitoshi Yoshida | 2000-08-22 |
| D424053 | Recording and reproducing machine for telephone or radio communication equipment | Masafumi Ito, Shigeru Hasegawa | 2000-05-02 |
| D417669 | Combined audio mixer and magnetic disc recorder | Masafumi Ito, Haruki Takita | 1999-12-14 |
| D415738 | Data recorder | Masafumi Ito, Shigeru Hasegawa | 1999-10-26 |
| D411997 | Audio mixer | Masafumi Ito, Haruki Takita | 1999-07-13 |
| D408409 | Optical disc player | Masafumi Ito, Shigeru Hasegawa | 1999-04-20 |
| D396719 | Digital audio tape recorder | Masafumi Ito, Haruki Takita | 1998-08-04 |
| D394059 | Digital audio tape recorder | Masafumi Ito, Haruki Takita | 1998-05-05 |
| D391957 | Optical disc player | Masafumi Ito, Haruki Takita, Yasunobu Shimizu | 1998-03-10 |
| D389128 | Optical disc drive | Masafumi Ito, Haruki Takita, Yasunobu Shimizu | 1998-01-13 |
| D386482 | Optical disc drive | Masafumi Ito, Shigeru Hasegawa, Haruki Takita | 1997-11-18 |
| D384356 | Combined audio mixer and tape recorder | Masafumi Ito, Shigeru Hasegawa, Haruki Takita | 1997-09-30 |
| D371783 | Digital audio disc player | Masafumi Ito, Shigeru Hasegawa, Yasunobu Shimizu, Yukio Iikura | 1996-07-16 |
| D370895 | Disk drive unit | Masafumi Ito, Shigeru Hasegawa | 1996-06-18 |
| D368714 | Digital audio tape recorder | Masafumi Ito, Shigeru Hasegawa | 1996-04-09 |
| D367052 | Combined audio mixer and tape recorder | Masafumi Ito, Shigeru Hasegawa, Keiji Tsunoda, Yasunobu Shimizu | 1996-02-13 |
| D365097 | Streaming cassette tape drive for measuring apparatus | Masafumi Ito, Shigeru Hasegawa, Yasunobu Shimizu | 1995-12-12 |
| D362666 | Digital audio tape recorder | Masafumi Ito, Shigeru Hasegawa, Keiji Tsunoda | 1995-09-26 |
| D362002 | Disk recording/reproducing apparatus | Masafumi Ito, Shigeru Hasegawa | 1995-09-05 |
| D361566 | Video tape recorder | Masafumi Ito, Shigeru Hasegawa, Yasunobu Shimizu | 1995-08-22 |
| D358378 | Disc drive | Masafumi Ito, Shigeru Hasegawa | 1995-05-16 |
| D358152 | Remote controller for video tape recorder | Masafumi Ito, Shigeru Hasegawa, Yasunobu Shimizu | 1995-05-09 |