Inventor · disambiguated record
Takashi Yokoyama
Also filed as: UCHIDA SHINZI · YOKOYAMA TAKASHI
183 granted patents·41 pending applications·3,175 citations·filing 1975–2025
99Inventor score
Top patents by PatentIndex Score
224 records- 0198US6245665B1Semiconductor device and method of fabricating the sameNEC CORP·Filed 1999·Granted Jun 12, 2001·493 cites·8 claims
- 0298US5068712ASemiconductor deviceHITACHI LTD·Filed 1989·Granted Nov 26, 1991·165 cites·36 claims
- 0397US6727544B2Semiconductor memory including cell(s) with both charge storage layer(s) and control gate laterally surrounding island-like semiconductor layerMASUOKA FUJIO·Filed 2002·Granted Apr 27, 2004·148 cites·32 claims
- 0496US9577005B2Semiconductor device and solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2015·Granted Feb 21, 2017·11 cites·7 claims
- 0596US9171887B2Semiconductor device and method of manufacturing sameSONY CORP·Filed 2014·Granted Oct 27, 2015·18 cites·20 claims
- 0696US9093575B2Semiconductor device and solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2013·Granted Jul 28, 2015·16 cites·16 claims
- 0795US10930697B2Semiconductor device, solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2020·Granted Feb 23, 2021·3 cites·15 claims
- 0895US9412788B2Semiconductor device structure useful for bulk transistor and method of manufacturing the sameSONY CORP·Filed 2014·Granted Aug 9, 2016·16 cites·9 claims
- 0995US6263204B1Switching center for mobile handoverHITACHI LTD·Filed 2000·Granted Jul 17, 2001·97 cites·7 claims
- 1094US11043532B2Semiconductor deviceSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2017·Granted Jun 22, 2021·10 cites·20 claims
- 1194US9947710B2Semiconductor device, solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2017·Granted Apr 17, 2018·8 cites·12 claims
- 1294US7304343B2Semiconductor memory device and manufacturing method for the sameFUJIO MASUOKA·Filed 2005·Granted Dec 4, 2007·39 cites·11 claims
- 1394US6933556B2Semiconductor memory with gate at least partially located in recess defined in vertically oriented semiconductor layerSHARP KK·Filed 2002·Granted Aug 23, 2005·88 cites·46 claims
- 1493US10319775B2Semiconductor device, solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2018·Granted Jun 11, 2019·6 cites·8 claims
- 1593US6870215B2Semiconductor memory and its production processMASUOKA FUJIO·Filed 2002·Granted Mar 22, 2005·99 cites·22 claims
- 1692US10615214B2Semiconductor device, solid-state imaging device with tantalum oxide layer formed by diffusing a material of an electrode of necessity or a counter electrodeSONY CORP·Filed 2018·Granted Apr 7, 2020·5 cites·7 claims
- 1792US9837534B2Semiconductor device and fabrication method thereforSONY CORP·Filed 2015·Granted Dec 5, 2017·8 cites·30 claims
- 1892US9219077B2Semiconductor device and fabrication method thereforYOKOYAMA TAKASHI·Filed 2012·Granted Dec 22, 2015·14 cites·26 claims
- 1990US7733859B2Apparatus and method for packet forwarding in layer 2 networkHITACHI LTD·Filed 2007·Granted Jun 8, 2010·25 cites·13 claims
- 2089US10192925B2Semiconductor device structure useful for bulk transistor and method of manufacturing sameSONY CORP·Filed 2018·Granted Jan 29, 2019·4 cites·15 claims
- 2189US8585014B2Linear solenoid and valve device using the sameOIKAWA NAOKI·Filed 2010·Granted Nov 19, 2013·10 cites·13 claims
- 2289US7213861B2Retractable seat deviceAISIN SEIKI·Filed 2005·Granted May 8, 2007·31 cites·8 claims
- 2388US6754495B2Handover method in mobile communication systemHITACHI LTD·Filed 2001·Granted Jun 22, 2004·39 cites·4 claims
- 2487US7532624B2Multicast packet control apparatusHITACHI COMM TECH LTD·Filed 2006·Granted May 12, 2009·25 cites·10 claims
- 2587US4561486AMethod for fabricating polycrystalline silicon waferHOXAN KK·Filed 1982·Granted Dec 31, 1985·37 cites·1 claims
- 2686US10615334B2Memory cell structure, method of manufacturing a memory, and memory apparatusSONY CORP·Filed 2018·Granted Apr 7, 2020·5 cites·20 claims
- 2786US10002907B2Semiconductor device and method of manufacturing sameSONY CORP·Filed 2017·Granted Jun 19, 2018·3 cites·16 claims
- 2886US5530286ASemiconductor deviceHITACHI LTD·Filed 1994·Granted Jun 25, 1996·53 cites·6 claims
- 2985US7686398B2Seat apparatus for vehicleAISIN SEIKI·Filed 2008·Granted Mar 30, 2010·24 cites·7 claims
- 3085US4970577ASemiconductor chip moduleHITACHI LTD·Filed 1989·Granted Nov 13, 1990·71 cites·16 claims
- 3184US5358904ASemiconductor deviceHITACHI LTD·Filed 1992·Granted Oct 25, 1994·47 cites·15 claims
- 3283US9917129B2Semiconductor device with transistor in semiconductor subtrate and insulated contact plug extending trough the substrateSONY CORP·Filed 2014·Granted Mar 13, 2018·5 cites·25 claims
- 3383US7408143B2Previous amplifier circuit, light-receiving amplifier circuit, and optical pickup apparatus having grounded emitter amplifier circuits each with a grounded emitter transistorSHARP KK·Filed 2007·Granted Aug 5, 2008·5 cites·15 claims
- 3482US10319785B2Semiconductor device and method of manufacturing sameSONY CORP·Filed 2018·Granted Jun 11, 2019·2 cites·11 claims
- 3582US7135726B2Semiconductor memory and its production processSHARP KK·Filed 2001·Granted Nov 14, 2006·31 cites·38 claims
- 3682US6627996B1Semiconductor device having fluorine containing silicon oxide layer as dielectric for wiring pattern having anti-reflective layer and insulating layer thereonNEC ELECTRONICS CORP·Filed 2000·Granted Sep 30, 2003·24 cites·7 claims
- 3781US7524371B2Method for manufacturing defect-free silicon single crystalSUMCO TECHXIV CORP·Filed 2007·Granted Apr 28, 2009·6 cites·16 claims
- 3881US6259920B1Handover method in mobile communication systemHITACHI LTD·Filed 2000·Granted Jul 10, 2001·22 cites·7 claims
- 3980US11293122B2Airbag and method of producing weaving pattern for the sameTOYOTA BOSHOKU KK·Filed 2019·Granted Apr 5, 2022·2 cites·11 claims
- 4080US7691203B2Film forming apparatusAIR WATER INC·Filed 2006·Granted Apr 6, 2010·4 cites·8 claims
- 4180US6326681B1Semiconductor deviceHITACHI LTD·Filed 2000·Granted Dec 4, 2001·14 cites·14 claims
- 4280US5793099ASemiconductor deviceHITACHI LTD·Filed 1996·Granted Aug 11, 1998·30 cites·12 claims
- 4379US9698199B2Semiconductor device and method of manufacturing sameSONY CORP·Filed 2015·Granted Jul 4, 2017·2 cites·9 claims
- 4479US7217654B2Semiconductor device and method of manufacturing the sameNEC ELECTRONICS CORP·Filed 2004·Granted May 15, 2007·18 cites·5 claims
- 4579US6081023ASemiconductor deviceHITACHI LTD·Filed 1999·Granted Jun 27, 2000·28 cites·13 claims
- 4679US5105728ABalanced variable-displacement compressorHITACHI LTD·Filed 1990·Granted Apr 21, 1992·40 cites·10 claims
- 4778US9972772B2Memory cell structure, method of manufacturing a memory, and memory apparatusSONY CORP·Filed 2017·Granted May 15, 2018·3 cites·11 claims
- 4878US8972988B2Remote virtual machine migration port management device and systemIKEGAMI KOZO·Filed 2012·Granted Mar 3, 2015·9 cites·7 claims
- 4978US8881354B2Tool radius adjusting system for boring holder, tool radius adjusting method in machine tool, and machine toolNAKAMURA EIJI·Filed 2010·Granted Nov 11, 2014·7 cites·5 claims
- 5078US6255732B1Semiconductor device and process for producing the sameNEC CORP·Filed 1999·Granted Jul 3, 2001·46 cites·14 claims
Showing the top 50 of 224 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Takashi Yokoyama 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 →