Inventor · disambiguated record
Hiroyuki Urushibata
Also filed as: URUSHIBATA HIROYUKI
4 granted patents·204 citations·filing 1981–1991
79Inventor score
Technology areasG11B
Files withSONY CORP4
Top patents by PatentIndex Score
4 records- 0197US4755978ADisc playerSONY CORP·Filed 1987·Granted Jul 5, 1988·153 cites·5 claims
- 0277US5172361ADisc loading apparatusSONY CORP·Filed 1991·Granted Dec 15, 1992·34 cites·7 claims
- 0361US5063557ADisc drive apparatusSONY CORP·Filed 1989·Granted Nov 5, 1991·13 cites·17 claims
- 0438US4412321ARecord changerSONY CORP·Filed 1981·Granted Oct 25, 1983·4 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Hiroyuki Urushibata 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 →