Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6301214 | Disk device | Sadayuki Ishii | 2001-10-09 |
| 6222690 | Tape speed sensor, control circuit using tape speed sensor and method of controlling tape speed sensor using control circuit | Masanobu Tanaka | 2001-04-24 |
| 6130744 | Optical disk discriminating method, including memory storage, for automatic multiple-disk changer | Kenji Abe, Isao Asano, Shoichiro SAITO | 2000-10-10 |
| 6127677 | Optical encoder having optical conductor at the outer circumference of rotor | Masanobu Tanaka, Shoichi Kyoya | 2000-10-03 |
| 6052351 | Disk device | Sadayuki Ishii | 2000-04-18 |
| 6009069 | Disk package capable of loading a disk package containing multiple disks of different types and locking mechanism dependent on individual disk type | Kenji Abe | 1999-12-28 |
| 5987000 | Disc package | Kenji Abe | 1999-11-16 |
| 5982734 | Disk package | Kenji Abe | 1999-11-09 |
| 5978340 | Compact switching means for driving a recording medium | Masanobu Tanaka | 1999-11-02 |
| 5963534 | Driving device for a recording medium | Masanobu Tanaka | 1999-10-05 |
| 5959950 | Disk drive capable of loading a disk package containing multiple disks of different types and locking mechanism dependent on individual disk type | Kenji Abe | 1999-09-28 |
| 5959949 | Disk package for storage of multiple disks of different types and locking mechanism dependent on individual disk type | Kenji Abe | 1999-09-28 |
| 5886961 | Optical disk device capable of accessing a plural different types of optical disks | Kenji Abe | 1999-03-23 |
| 5490018 | Data processing apparatus having a digital recording and reproducing system and an analog reproducing system | — | 1996-02-06 |
| 5349479 | Data transfer method of magnetic recording/reproducing apparatus | Noriji Arimura | 1994-09-20 |
| 5345345 | Rotary head type magnetic recording/reproducing unit | Seiichi Nagai | 1994-09-06 |
| 5136442 | Cassette loading device of a tape player utilizing power from capstan motor | — | 1992-08-04 |
| 5063466 | Rotary head type magnetic recording and reproducing apparatus | — | 1991-11-05 |
| 5021900 | Tape guide driving device for rotating head type tape player | Seiichi Nagai | 1991-06-04 |
| 5018036 | Rotary head type magnetic recording and reproducing apparatus with dedicated recording and reproducing magnetic heads | — | 1991-05-21 |
| 4924325 | Head position controlling method | — | 1990-05-08 |
| 4709287 | Head height adjustment construction in magnetic recording and reproducing apparatus with rotary cylinder | — | 1987-11-24 |
| 4669002 | Multiple magnetic head rotary transducer drum for simultaneous recording and reproducing | Toru Nishioka | 1987-05-26 |
| 4649306 | Direct drive motor having adjustable bearing for spindle | — | 1987-03-10 |
| 4623944 | Magnetic tape guide drum with grounding device | — | 1986-11-18 |