Inventor · disambiguated record
Osamu Nagashima
Also filed as: NAGASHIMA OSAMU
70 granted patents·13 pending applications·1,503 citations·filing 1987–2025
99Inventor score
Top patents by PatentIndex Score
83 records- 0198US5724297ASemiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 1996·Granted Mar 3, 1998·138 cites·40 claims
- 0296USD646222SBatterySONY CORP·Filed 2011·Granted Oct 4, 2011·83 cites·1 claims
- 0396US7466577B2Semiconductor storage device having a plurality of stacked memory chipsHITACHI LTD INTELLECTUAL PROPE·Filed 2006·Granted Dec 16, 2008·107 cites·19 claims
- 0495US6339344B1Semiconductor integrated circuit deviceHITACHI LTD·Filed 2000·Granted Jan 15, 2002·79 cites·25 claims
- 0594US8350792B2Display deviceHITACHI DISPLAYS LTD·Filed 2009·Granted Jan 8, 2013·24 cites·4 claims
- 0693US7847522B2Battery deviceSONY CORP·Filed 2007·Granted Dec 7, 2010·15 cites·19 claims
- 0793US6335901B1Semiconductor deviceHITACHI LTD·Filed 2000·Granted Jan 1, 2002·66 cites·38 claims
- 0893US5926430ASemiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 1997·Granted Jul 20, 1999·52 cites·46 claims
- 0992US6222792B1Phase control circuit, semiconductor device and semiconductor memoryHITACHI LTD·Filed 2000·Granted Apr 24, 2001·62 cites·7 claims
- 1092US2025383802A1Memory devices with multiple sets of latencies and methods for operating the sameLODESTAR LICENSING GROUP LLC·Filed 2025·Application pending·0 cites
- 1191US8785022B2Secondary batterySONY CORP·Filed 2013·Granted Jul 22, 2014·6 cites·8 claims
- 1291US6407963B1Semiconductor memory device of DDR configuration having improvement in glitch immunityHITACHI LTD·Filed 2000·Granted Jun 18, 2002·64 cites·22 claims
- 1389US7855012B2Secondary batterySONY CORP·Filed 2006·Granted Dec 21, 2010·9 cites·17 claims
- 1489US6205086B1Phase control circuit, semiconductor device and semiconductor memoryHITACHI LTD·Filed 2000·Granted Mar 20, 2001·45 cites·18 claims
- 1587US6411543B2Dynamic random access memory (RAM), semiconductor storage device, and semiconductor integrated circuit (IC) deviceHITACHI LTD·Filed 2001·Granted Jun 25, 2002·43 cites·18 claims
- 1686US6754133B2Semiconductor deviceHITACHI LTD·Filed 2002·Granted Jun 22, 2004·33 cites·2 claims
- 1785US6483349B2Semiconductor integrated circuit deviceHITACHI LTD·Filed 2001·Granted Nov 19, 2002·37 cites·5 claims
- 1885US6201728B1Dynamic RAM, semiconductor storage device, and semiconductor integrated circuit deviceHITACHI LTD·Filed 1996·Granted Mar 13, 2001·60 cites·23 claims
- 1984US12423010B2Memory devices with multiple sets of latencies and methods for operating the sameLODESTAR LICENSING GROUP LLC·Filed 2024·Granted Sep 23, 2025·0 cites·20 claims
- 2084US9869916B2Liquid crystal display deviceJAPAN DISPLAY INC·Filed 2016·Granted Jan 16, 2018·3 cites·16 claims
- 2184US6671212B2Method and apparatus for data inversion in memory deviceELPIDA MEMORY INC·Filed 2002·Granted Dec 30, 2003·25 cites·21 claims
- 2284US6341088B2Dynamic random access memory in switch MOSFETs between sense amplifiers and bit linesHITACHI LTD·Filed 2000·Granted Jan 22, 2002·28 cites·5 claims
- 2384US5726930ASemiconductor memory deviceHITACHI LTD·Filed 1996·Granted Mar 10, 1998·59 cites·14 claims
- 2484US4947373ADynamic ramHITACHI LTD·Filed 1987·Granted Aug 7, 1990·53 cites·11 claims
- 2583US9299303B2Liquid crystal display deviceNAGASHIMA OSAMU·Filed 2013·Granted Mar 29, 2016·5 cites·20 claims
- 2683US6473358B2Semiconductor memory deviceHITACHI LTD·Filed 2002·Granted Oct 29, 2002·31 cites·3 claims
- 2781US8665192B2Liquid crystal display deviceNAGASHIMA OSAMU·Filed 2010·Granted Mar 4, 2014·5 cites·20 claims
- 2881US5615145ASemiconductor memory with ferroelectric capacitorsHITACHI LTD·Filed 1995·Granted Mar 25, 1997·50 cites·18 claims
- 2981US2025342112A1Apparatuses and methods for training operationsMICRON TECHNOLOGY INC·Filed 2025·Application pending·0 cites
- 3080US7579811B2Battery pack, battery protection processing apparatus and control method thereofSONY CORP·Filed 2004·Granted Aug 25, 2009·49 cites·17 claims
- 3180US6385100B2Semiconductor memory device with improved column selecting operationHITACHI LTD·Filed 2001·Granted May 7, 2002·28 cites·10 claims
- 3279US8237906B2Liquid crystal display deviceIGETA KOICHI·Filed 2009·Granted Aug 7, 2012·6 cites·9 claims
- 3378US6212110B1Semiconductor memory deviceHITACHI LTD·Filed 1999·Granted Apr 3, 2001·33 cites·16 claims
- 3476US10481819B2Memory devices with multiple sets of latencies and methods for operating the sameMICRON TECHNOLOGY INC·Filed 2017·Granted Nov 19, 2019·2 cites·22 claims
- 3576USD618171SRechargeable batterySONY CORP·Filed 2009·Granted Jun 22, 2010·18 cites·1 claims
- 3676US7514902B2Battery pack and remaining battery power calculation methodSONY CORP·Filed 2004·Granted Apr 7, 2009·13 cites·19 claims
- 3776US6498762B2Semiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 2002·Granted Dec 24, 2002·13 cites·12 claims
- 3876US6459627B1Semiconductor memory deviceHITACHI LTD·Filed 2002·Granted Oct 1, 2002·18 cites·5 claims
- 3975US6680869B2Semiconductor deviceHITACHI LTD·Filed 2002·Granted Jan 20, 2004·19 cites·2 claims
- 4073US12367133B2Apparatuses and methods for training operationsMICRON TECHNOLOGY INC·Filed 2023·Granted Jul 22, 2025·0 cites·20 claims
- 4173US11914874B2Memory devices with multiple sets of latencies and methods for operating the sameLODESTAR LICENSING GROUP LLC·Filed 2021·Granted Feb 27, 2024·0 cites·31 claims
- 4273USD635512SBatterySONY CORP·Filed 2010·Granted Apr 5, 2011·16 cites·1 claims
- 4373US7710285B2Battery device and electronic apparatusSONY CORP·Filed 2007·Granted May 4, 2010·4 cites·11 claims
- 4473US6678204B2Semiconductor memory device with high-speed operation and methods of using and designing thereofELPIDA MEMORY INC·Filed 2001·Granted Jan 13, 2004·20 cites·29 claims
- 4571US8709633B2Battery loading and unloading mechanismYAMASAKI TAKAYOSHI·Filed 2005·Granted Apr 29, 2014·1 cites·20 claims
- 4671US8264198B2Battery pack, battery charger and charging method having multiple charging modesSATO MASANAO·Filed 2008·Granted Sep 11, 2012·10 cites·20 claims
- 4770US8557424B2Secondary batterySATO HIROAKI·Filed 2006·Granted Oct 15, 2013·1 cites·19 claims
- 4870US6275440B2Semiconductor integrated circuit device and method of activating the sameHITACHI LTD·Filed 2000·Granted Aug 14, 2001·10 cites·25 claims
- 4968US11150821B2Memory devices with multiple sets of latencies and methods for operating the sameMICRON TECHNOLOGY INC·Filed 2019·Granted Oct 19, 2021·0 cites·31 claims
- 5068US9178195B2Battery loading and unloading mechanismSONY CORP·Filed 2014·Granted Nov 3, 2015·0 cites·18 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
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