Inventor · disambiguated record
Takahiko Ishizu
Also filed as: ISHIZU TAKAHIKO
68 granted patents·13 pending applications·333 citations·filing 2012–2025
98Inventor score
Top patents by PatentIndex Score
81 records- 0198US10388364B2Memory device, driving method thereof, semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2017·Granted Aug 20, 2019·41 cites·8 claims
- 0297US10096631B2Signal processing circuit and semiconductor device including the signal processing circuitSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Oct 9, 2018·31 cites·22 claims
- 0396US9704562B2Semiconductor device with stacked structure of memory cells over sensing amplifiers, circuit board, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Jul 11, 2017·21 cites·22 claims
- 0496US9443564B2Semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Sep 13, 2016·15 cites·8 claims
- 0595US9240244B2Method for driving semiconductor device and semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Jan 19, 2016·18 cites·15 claims
- 0695US8787102B2Memory device and signal processing circuitISHIZU TAKAHIKO·Filed 2012·Granted Jul 22, 2014·31 cites·21 claims
- 0793US12380938B2Memory device, semiconductor device, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2024·Granted Aug 5, 2025·1 cites·15 claims
- 0892US9589611B2Memory device, semiconductor device, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Mar 7, 2017·11 cites·10 claims
- 0991US10490258B2Semiconductor device with stacked structure of memory cells over sensing amplifiers, circuit board and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2017·Granted Nov 26, 2019·9 cites·24 claims
- 1091US9755643B2Semiconductor device including buffer circuit and level shifter circuit, and electronic device including the sameSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Sep 5, 2017·12 cites·20 claims
- 1191US9748274B2Memory device comprising stacked memory cells and electronic device including the sameSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Aug 29, 2017·11 cites·15 claims
- 1291US8964450B2Memory device and signal processing circuitISHIZU TAKAHIKO·Filed 2012·Granted Feb 24, 2015·15 cites·20 claims
- 1390US11705184B2Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2022·Granted Jul 18, 2023·1 cites·5 claims
- 1489US10950297B2Semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2019·Granted Mar 16, 2021·4 cites·7 claims
- 1589US9406370B2Memory device, and semiconductor device and electronic appliance including the sameSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Aug 2, 2016·9 cites·12 claims
- 1687US10068640B2Semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2017·Granted Sep 4, 2018·4 cites·14 claims
- 1787US9472293B2Method for driving semiconductor device and semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Oct 18, 2016·4 cites·12 claims
- 1886US11404107B2Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2019·Granted Aug 2, 2022·4 cites·13 claims
- 1986US11309431B2Memory device, semiconductor device, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2019·Granted Apr 19, 2022·3 cites·8 claims
- 2086US10943646B2Memory device, driving method thereof, semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2019·Granted Mar 9, 2021·3 cites·10 claims
- 2185US9583177B2Memory device and semiconductor device including memory deviceSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Feb 28, 2017·7 cites·22 claims
- 2285US9257173B2Arithmetic processing unit and driving method thereofSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Feb 9, 2016·9 cites·10 claims
- 2385US9171630B2Method for driving semiconductor device and semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Oct 27, 2015·9 cites·17 claims
- 2484US10573374B2Storage device and driving method thereof for gain cell including cancel circuitSEMICONDUCTOR ENERGY LAB·Filed 2017·Granted Feb 25, 2020·5 cites·19 claims
- 2584US10559612B2Signal processing circuit and semiconductor device including the signal processing circuitSEMICONDUCTOR ENERGY LAB·Filed 2018·Granted Feb 11, 2020·3 cites·6 claims
- 2684US9627010B2Semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted Apr 18, 2017·6 cites·21 claims
- 2783US12260898B2Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2024·Granted Mar 25, 2025·0 cites·4 claims
- 2882US10236884B2Word line driver comprising NAND circuitSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Mar 19, 2019·6 cites·5 claims
- 2980US12336291B2Semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2024·Granted Jun 17, 2025·0 cites·12 claims
- 3080US10559341B2Method for operating the semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2017·Granted Feb 11, 2020·4 cites·12 claims
- 3179US12229661B2Arithmetic device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2023·Granted Feb 18, 2025·0 cites·5 claims
- 3279US11984152B2Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2023·Granted May 14, 2024·0 cites·4 claims
- 3379US11908947B2Semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2020·Granted Feb 20, 2024·1 cites·15 claims
- 3479US2025280603A1Semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2025·Application pending·0 cites
- 3579US2025210094A1Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2025·Application pending·0 cites
- 3678US11275993B2Arithmetic device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2018·Granted Mar 15, 2022·2 cites·5 claims
- 3778US9647665B2Semiconductor device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2015·Granted May 9, 2017·3 cites·12 claims
- 3878US2025015614A1Semiconductor device and battery packSEMICONDUCTOR ENERGY LAB·Filed 2024·Application pending·0 cites
- 3977US11062762B2Storage device applying a cancel circuitSEMICONDUCTOR ENERGY LAB·Filed 2020·Granted Jul 13, 2021·1 cites·12 claims
- 4077US2025260240A1Semiconductor device and operating method of semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2025·Application pending·0 cites
- 4176US9245593B2Method for driving arithmetic processing unitSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Jan 26, 2016·5 cites·18 claims
- 4276US2025081425A1Memory device, semiconductor device, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2024·Application pending·0 cites
- 4375US9202814B2Memory device and signal processing circuitSEMICONDUCTOR ENERGY LAB·Filed 2014·Granted Dec 1, 2015·4 cites·21 claims
- 4474US12107171B2Memory device, semiconductor device, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2023·Granted Oct 1, 2024·0 cites·10 claims
- 4574US11854599B2Semiconductor device, electronic component, and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2022·Granted Dec 26, 2023·0 cites·3 claims
- 4674US11462538B2Semiconductor deviceSEMICONDUCTOR ENERGY LAB·Filed 2018·Granted Oct 4, 2022·3 cites·9 claims
- 4774US10090031B2Semiconductor device comprising memory circuit and selection circuitSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Oct 2, 2018·4 cites·20 claims
- 4874US9715920B2Memory device, and semiconductor device and electronic appliance including the sameSEMICONDUCTOR ENERGY LAB·Filed 2016·Granted Jul 25, 2017·3 cites·15 claims
- 4973US11868877B2Arithmetic device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2022·Granted Jan 9, 2024·0 cites·10 claims
- 5072US11922999B2Memory device and electronic deviceSEMICONDUCTOR ENERGY LAB·Filed 2022·Granted Mar 5, 2024·0 cites·5 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →