Inventor
TOKUNAGA HAJIME
JP62 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEMICONDUCTOR ENERGY LAB
42 patentsUS9741865B2Aug 22, 2017
Method of forming semiconductor device including oxide semiconductor stack with different ratio of indium and gallium
SEMICONDUCTOR ENERGY LAB39 citations98
US9496408B2Nov 15, 2016
Semiconductor device including oxide semiconductor stack with different ratio of indium and gallium
SEMICONDUCTOR ENERGY LAB102 citations98
US9209256B2Dec 8, 2015
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB38 citations98
US7719001B2May 18, 2010
Semiconductor device with metal oxides and an organic compound
SEMICONDUCTOR ENERGY LAB69 citations98
US9087726B2Jul 21, 2015
Semiconductor device
SEMICONDUCTOR ENERGY LAB26 citations96
US7838346B2Nov 23, 2010
Manufacturing method of semiconductor device
SEMICONDUCTOR ENERGY LAB33 citations96
US9899536B2Feb 20, 2018
Method of forming semiconductor device with different energy gap oxide semiconductor stacked layers
SEMICONDUCTOR ENERGY LAB30 citations94
US9287411B2Mar 15, 2016
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB30 citations94
US9530892B2Dec 27, 2016
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB20 citations93
US9349869B2May 24, 2016
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB15 citations93
US7782651B2Aug 24, 2010
Semiconductor device including storage device and method for driving the same
SEMICONDUCTOR ENERGY LAB15 citations93
US7714408B2May 11, 2010
Semiconductor device and manufacturing method thereof
SEMICONDUCTOR ENERGY LAB23 citations93
US7575959B2Aug 18, 2009
Manufacturing method of semiconductor device
SEMICONDUCTOR ENERGY LAB13 citations93
US7335556B2Feb 26, 2008
Manufacturing method of semiconductor device
SEMICONDUCTOR ENERGY LAB19 citations93
US10361318B2Jul 23, 2019
Semiconductor device
SEMICONDUCTOR ENERGY LAB10 citations92
US9812583B2Nov 7, 2017
Semiconductor device
SEMICONDUCTOR ENERGY LAB16 citations92
US9449819B2Sep 20, 2016
Semiconductor device
SEMICONDUCTOR ENERGY LAB12 citations92
US9219165B2Dec 22, 2015
Semiconductor device
SEMICONDUCTOR ENERGY LAB16 citations92
US11710794B2Jul 25, 2023
Semiconductor device
SEMICONDUCTOR ENERGY LAB4 citations86
US11152494B2Oct 19, 2021
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB4 citations84
US10886413B2Jan 5, 2021
Semiconductor device
SEMICONDUCTOR ENERGY LAB7 citations84
US10516062B2Dec 24, 2019
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB4 citations84
US10361291B2Jul 23, 2019
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB4 citations84
US9997639B2Jun 12, 2018
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB4 citations84
US9583634B2Feb 28, 2017
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB8 citations84
US9324810B2Apr 26, 2016
Semiconductor device including oxide semiconductor film
SEMICONDUCTOR ENERGY LAB6 citations84
US7825021B2Nov 2, 2010
Method for manufacturing display device
SEMICONDUCTOR ENERGY LAB11 citations84
US8053290B2Nov 8, 2011
Manufacturing method of semiconductor device
SEMICONDUCTOR ENERGY LAB6 citations74
US11824105B2Nov 21, 2023
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB1 citations73
US11355648B2Jun 7, 2022
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB3 citations73
US10749015B2Aug 18, 2020
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB2 citations73
US10014414B2Jul 3, 2018
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB3 citations73
US9972718B2May 15, 2018
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB2 citations73
US9865746B2Jan 9, 2018
Semiconductor device
SEMICONDUCTOR ENERGY LAB2 citations73
US9857860B2Jan 2, 2018
Power supply control circuit and signal processing circuit
SEMICONDUCTOR ENERGY LAB3 citations73
US12495619B2Dec 9, 2025
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB0 citations63
US10032934B2Jul 24, 2018
Semiconductor device and method for manufacturing the same
SEMICONDUCTOR ENERGY LAB1 citations63
US9761738B2Sep 12, 2017
Semiconductor device having first and second oxide semiconductors with difference energy level
SEMICONDUCTOR ENERGY LAB1 citations63
US7994607B2Aug 9, 2011
Semiconductor device and manufacturing method thereof
SEMICONDUCTOR ENERGY LAB5 citations63
US7858972B2Dec 28, 2010
Memory device and semiconductor device
SEMICONDUCTOR ENERGY LAB4 citations63
US12243943B2Mar 4, 2025
Semiconductor device
SEMICONDUCTOR ENERGY LAB0 citations62
US10217796B2Feb 26, 2019
Semiconductor device comprising an oxide layer and an oxide semiconductor layer
SEMICONDUCTOR ENERGY LAB1 citations62
TOKUNAGA HAJIME
6 patentsUS8274814B2Sep 25, 2012
Semiconductor device including storage device and method for driving the same
TOKUNAGA HAJIME19 citations92
US8476632B2Jul 2, 2013
Semiconductor device and manufacturing method thereof
TOKUNAGA HAJIME7 citations84
US8338238B2Dec 25, 2012
Manufacturing method of semiconductor device
TOKUNAGA HAJIME8 citations84
US8330249B2Dec 11, 2012
Semiconductor device with driver circuit and memory element
TOKUNAGA HAJIME9 citations84
US8687407B2Apr 1, 2014
Semiconductor device including storage device and method for driving the same
TOKUNAGA HAJIME3 citations63
US8203142B2Jun 19, 2012
Memory device and semiconductor device
TOKUNAGA HAJIME3 citations63
TAJIMA RYOTA
1 patentYAMAGUCHI TETSUJI
1 patentShowing the top 50 of 62 patents by PatentIndex Score.