Inventor · disambiguated record
Ryota Fujitsuka
Also filed as: FUJITSUKA RYOTA
29 granted patents·17 pending applications·140 citations·filing 2007–2024
95Inventor score
Top patents by PatentIndex Score
46 records- 0196US7999304B2Semiconductor deviceTOSHIBA KK·Filed 2008·Granted Aug 16, 2011·52 cites·8 claims
- 0291US8110865B2Semiconductor device and method for manufacturing the sameTANAKA MASAYUKI·Filed 2010·Granted Feb 7, 2012·12 cites·5 claims
- 0389US11758728B2Semiconductor device and method of manufacturing the sameKIOXIA CORP·Filed 2021·Granted Sep 12, 2023·2 cites·4 claims
- 0488US7723772B2Semiconductor memory device and method of manufacturing the sameTOSHIBA KK·Filed 2007·Granted May 25, 2010·11 cites·8 claims
- 0584US8450715B2Nonvolatile metal oxide memory element and nonvolatile memory deviceTAKANO KENSUKE·Filed 2010·Granted May 28, 2013·10 cites·18 claims
- 0681US7927949B2Semiconductor memory device and method of manufacturing the sameTOSHIBA KK·Filed 2010·Granted Apr 19, 2011·5 cites·6 claims
- 0779US8558208B2Resistance random access memory including variable-resistance layersFUJITSUKA RYOTA·Filed 2011·Granted Oct 15, 2013·9 cites·10 claims
- 0876US8008152B2Method of manufacturing semiconductor deviceTOSHIBA KK·Filed 2007·Granted Aug 30, 2011·4 cites·10 claims
- 0975US8796757B2Semiconductor memory device and method of manufacturing the sameKAI TETSUYA·Filed 2011·Granted Aug 5, 2014·4 cites·6 claims
- 1074US8598561B2Nonvolatile memory device and method for manufacturing sameSEKINE KATSUYUKI·Filed 2011·Granted Dec 3, 2013·3 cites·17 claims
- 1174US8411486B2Nonvolatile memory device and method of manufacturing the sameSEKINE KATSUYUKI·Filed 2010·Granted Apr 2, 2013·4 cites·9 claims
- 1273US7682899B2Method of manufacturing semiconductor deviceTOSHIBA KK·Filed 2007·Granted Mar 23, 2010·3 cites·8 claims
- 1373US7635891B2Semiconductor deviceTOSHIBA KK·Filed 2007·Granted Dec 22, 2009·5 cites·20 claims
- 1471US7972927B2Method of manufacturing a nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2009·Granted Jul 5, 2011·4 cites·16 claims
- 1570US9406811B2Nonvolatile semiconductor memory device including a charge storage layer formed on first and second insulating layersTOSHIBA KK·Filed 2014·Granted Aug 2, 2016·2 cites·12 claims
- 1667US8759901B2Nonvolatile semiconductor memory device including a charge storage layer and semiconductor region in a grooveHIGUCHI MASAAKI·Filed 2010·Granted Jun 24, 2014·2 cites·7 claims
- 1766US8278696B2Semiconductor device and method of manufacturing the sameOZAWA YOSHIO·Filed 2009·Granted Oct 2, 2012·3 cites·5 claims
- 1865US8609487B2Method of manufacturing semiconductor deviceNATORI KATSUAKI·Filed 2010·Granted Dec 17, 2013·2 cites·7 claims
- 1963US2025261369A1Semiconductor device manufacturing methodKIOXIA CORP·Filed 2024·Application pending·0 cites
- 2062US7635890B2Semiconductor deviceTOSHIBA KK·Filed 2007·Granted Dec 22, 2009·2 cites·12 claims
- 2159US10355006B2Semiconductor storage device and manufacturing method thereofTOSHIBA MEMORY CORP·Filed 2016·Granted Jul 16, 2019·1 cites·2 claims
- 2256US10854488B2Wafer conveying apparatus and wafer conveying methodTOSHIBA MEMORY CORP·Filed 2019·Granted Dec 1, 2020·0 cites·8 claims
- 2356US2024098998A1Semiconductor memory device and method of manufacturing semiconductor memory deviceKIOXIA CORP·Filed 2023·Application pending·0 cites
- 2455US2023422505A1Semiconductor memory device and method of manufacturing semiconductor memory deviceKIOXIA CORP·Filed 2023·Application pending·0 cites
- 2554US12457740B2Semiconductor storage device including a low on-resistance joint between arraysKIOXIA CORP·Filed 2022·Granted Oct 28, 2025·0 cites·8 claims
- 2652US10403531B2Semiconductor manufacturing apparatus with supporting columns and tablesTOSHIBA MEMORY CORP·Filed 2018·Granted Sep 3, 2019·0 cites·7 claims
- 2751US9293563B2Semiconductor memory device and method of manufacturing the sameTOSHIBA KK·Filed 2014·Granted Mar 22, 2016·0 cites·11 claims
- 2851US9263319B2Semiconductor memory device and method for manufacturing the sameTOSHIBA KK·Filed 2014·Granted Feb 16, 2016·0 cites·11 claims
- 2951US8278697B2Semiconductor device and method for manufacturing the sameTANAKA MASAYUKI·Filed 2012·Granted Oct 2, 2012·0 cites·5 claims
- 3048US2007241390A1Semiconductor device and method for manufacturing the sameTANAKA MASAYUKI·Filed 2007·Application pending·0 cites
- 3147US7999305B2Semiconductor deviceTOSHIBA KK·Filed 2009·Granted Aug 16, 2011·0 cites·9 claims
- 3246US2009001448A1Semiconductor memory device and method of manufacturing the sameSEKINE KATSUYUKI·Filed 2008·Application pending·0 cites
- 3346US2023276627A1Semiconductor device and manufacturing method thereofKIOXIA CORP·Filed 2022·Application pending·0 cites
- 3445US11309322B2Semiconductor memory deviceKIOXIA CORP·Filed 2019·Granted Apr 19, 2022·0 cites·4 claims
- 3544US2020294861A1Semiconductor device and semiconductor device manufacturing methodTOSHIBA MEMORY CORP·Filed 2019·Application pending·0 cites
- 3644US2009273021A1Semiconductor device and method for manufacturing the sameSEKINE KATSUYUKI·Filed 2009·Application pending·0 cites
- 3744US2012217461A1Semiconductor memory device and method of manufacturing the sameKOBAYASHI SHIGEKI·Filed 2012·Application pending·0 cites
- 3840US2010006923A1Semiconductor device and method for manufacturing the sameFUJITSUKA RYOTA·Filed 2009·Application pending·0 cites
- 3939US2009256192A1Nonvolatile semiconductor memory device and method of manufacturing the sameFUJITSUKA RYOTA·Filed 2009·Application pending·0 cites
- 4038US2018269226A1Semiconductor memory device and method for manufacturing sameTOSHIBA MEMORY CORP·Filed 2018·Application pending·0 cites
- 4136US2018277406A1Substrate treatment apparatus and manufacturing method of semiconductor deviceTOSHIBA MEMORY CORP·Filed 2017·Application pending·0 cites
- 4236US2008277716A1Semiconductor deviceNISHIDA DAISUKE·Filed 2008·Application pending·0 cites
- 4335US2007183208A1Nonvolatile semiconductor memory device and data writing method thereforTANAKA MASAYUKI·Filed 2007·Application pending·0 cites
- 4434US2014367767A1Semiconductor device and manufacturing method thereofTOSHIBA KK·Filed 2013·Application pending·0 cites
- 4533US9920427B2Semiconductor manufacturing apparatus and manufacturing method of semiconductor deviceTOSHIBA MEMORY CORP·Filed 2015·Granted Mar 20, 2018·0 cites·2 claims
- 4633US2011176351A1Nonvolatile memory device and method for manufacturing sameTOSHIBA KK·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ryota Fujitsuka 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 →