Inventor · disambiguated record
Yojiro Sumi
Also filed as: SUMI YOJIRO
3 granted patents·2 pending applications·5 citations·filing 2010–2013
56Inventor score
Technology areasG11B
Top patents by PatentIndex Score
5 records- 0173US8305866B2Pickup apparatus, optical recording and reproduction apparatus, and recording and reproduction methodTANABE NORIHIRO·Filed 2010·Granted Nov 6, 2012·4 cites·6 claims
- 0262US8488430B2Recording medium and reproducing apparatusSAITO KIMIHIRO·Filed 2011·Granted Jul 16, 2013·1 cites·6 claims
- 0342US2014044940A1Optical recording medium and method for manufacturing optical recording mediumSONY CORP·Filed 2013·Application pending·0 cites
- 0438US2012127848A1Recording medium, method of initializing the same, initializing device, and reproducing methodSAITO KIMIHIRO·Filed 2011·Application pending·0 cites
- 0533US8553516B2Reproducing device and optical path length servo control methodMIURA TAKAHIRO·Filed 2011·Granted Oct 8, 2013·0 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Yojiro Sumi 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 →