Inventor · disambiguated record
Yoshikazu Ishimatsu
Also filed as: ISHIMATSU YOSHIKAZU · YAMAMOTO YOSHINORI
13 granted patents·372 citations·filing 1974–1997
93Inventor score
Files withSONY CORP13
Top patents by PatentIndex Score
13 records- 0194US5208802ADisk adapter for disk cartridgeSONY CORP·Filed 1990·Granted May 4, 1993·78 cites·4 claims
- 0291US4746013ADisc cartridge with releasable locking meansSONY CORP·Filed 1987·Granted May 24, 1988·46 cites·12 claims
- 0390US5737304ACD/CD-ROM apparatusSONY CORP·Filed 1996·Granted Apr 7, 1998·68 cites·7 claims
- 0487US5793729ACD/CD-ROM apparatusSONY CORP·Filed 1997·Granted Aug 11, 1998·50 cites·8 claims
- 0586US5956314AShock absorbing device and recording/playback apparatus for disc-shaped recording medium employing the shock absorbing deviceSONY CORP·Filed 1994·Granted Sep 21, 1999·51 cites·18 claims
- 0680US5936927ADisk drive apparatus with insulators to minimize external vibrationsSONY CORP·Filed 1997·Granted Aug 10, 1999·30 cites·9 claims
- 0759US4194229AMode selecting assembly for recording and/or reproducing apparatusSONY CORP·Filed 1978·Granted Mar 18, 1980·9 cites·18 claims
- 0855US5045959ADisc cartridge with opening for exposing disc extending to thin portion of peripheral wall provided with reinforcementSONY CORP·Filed 1990·Granted Sep 3, 1991·10 cites·17 claims
- 0951US5488605ADisc cartridge with easily assembled slider and shutter meansSONY CORP·Filed 1995·Granted Jan 30, 1996·10 cites·10 claims
- 1044US3949423ACassette locating and holding devices in a cassette tape recording and/or reproducing apparatusSONY CORP·Filed 1974·Granted Apr 6, 1976·6 cites·7 claims
- 1140US5612935AApparatus and method for controlling the position of an optical pickup device in a recording/reproducing apparatus for a disc-shaped recording mediumSONY CORP·Filed 1995·Granted Mar 18, 1997·5 cites·6 claims
- 1236US5991129ADisc cartridge with slidable shutterSONY CORP·Filed 1994·Granted Nov 23, 1999·3 cites·12 claims
- 1336US5299096ALED mounting holder and device for mounting LED using itSONY CORP·Filed 1993·Granted Mar 29, 1994·6 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Yoshikazu Ishimatsu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →