Inventor · disambiguated record
Ryuta Kumagai
Also filed as: KUMAGAI RYUTA
4 granted patents·0 citations·filing 2014–2023
55Inventor score
Files withTOSHIBA KK4
Top patents by PatentIndex Score
4 records- 0159US12300278B2Magnetic disk device and write methodTOSHIBA KK·Filed 2023·Granted May 13, 2025·0 cites·12 claims
- 0253US10872040B2Magnetic disk device and recording method of the sameTOSHIBA KK·Filed 2020·Granted Dec 22, 2020·0 cites·13 claims
- 0353US10592423B2Magnetic disk device and recording method of the sameTOSHIBA KK·Filed 2018·Granted Mar 17, 2020·0 cites·7 claims
- 0447US9105297B2Information recording device and data recovery methodTOSHIBA KK·Filed 2014·Granted Aug 11, 2015·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →