Inventor · disambiguated record
Toshiyuki Haruna
Also filed as: HARUNA TOSHIYUKI
7 granted patents·204 citations·filing 1982–1996
88Inventor score
Files withHITACHI LTD7
Top patents by PatentIndex Score
7 records- 0193US4542429AApparatus for reducing starting adhesion between a magnetic disc and flying headHITACHI LTD·Filed 1982·Granted Sep 17, 1985·48 cites·12 claims
- 0287US5012166AControl system for brushless DC motorHITACHI LTD·Filed 1990·Granted Apr 30, 1991·57 cites·34 claims
- 0378US4803572ARecording/reproducing method and apparatus of magnetic disk unit in which playback commences before the magnetic head is completely centered on the trackHITACHI LTD·Filed 1987·Granted Feb 7, 1989·24 cites·10 claims
- 0466US5105318AHead positioning device for use in magnetic disk equipmentHITACHI LTD·Filed 1988·Granted Apr 14, 1992·14 cites·19 claims
- 0564US5584012ACache control method and rotary storage device having cache controlHITACHI LTD·Filed 1994·Granted Dec 10, 1996·37 cites·32 claims
- 0650US5742933ARotary memory storage device with cache control method and apparatusHITACHI LTD·Filed 1996·Granted Apr 21, 1998·21 cites·18 claims
- 0734US4727439AMagnetic disc unit systemHITACHI LTD·Filed 1986·Granted Feb 23, 1988·3 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Toshiyuki Haruna 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 →