Inventor · disambiguated record
Yuji Kumai
Also filed as: KUMAI YUJI
3 granted patents·157 citations·filing 1988–2000
77Inventor score
Files withSONY CORP3
Top patents by PatentIndex Score
3 records- 0186US4995026AApparatus and method for encoding audio and lighting control data on the same optical discSONY CORP·Filed 1988·Granted Feb 19, 1991·56 cites·3 claims
- 0282US5742578AInformation recording and reproducing apparatus using light beam modulation on a spiral guide groove diskSONY CORP·Filed 1995·Granted Apr 21, 1998·51 cites·5 claims
- 0379US6636158B1Information processing apparatus and method, and program storage mediumSONY CORP·Filed 2000·Granted Oct 21, 2003·50 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Yuji Kumai 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 →