Inventor · disambiguated record
Masakazu Sagawa
Also filed as: SAGAWA MASAKAZU
50 granted patents·31 pending applications·773 citations·filing 1988–2022
98Inventor score
Files withHITACHI LTD45HITACHI DISPLAYS LTD8SAGAWA MASAKAZU7HITACHI POWER SEMICONDUCTOR DEVICE LTD3KUSUNOKI TOSHIAKI3
Top patents by PatentIndex Score
81 records- 0197US6737318B2Semiconductor integrated circuit device having switching misfet and capacitor element and method of producing the same, including wiring therefor and method of producing such wiringHITACHI LTD·Filed 2001·Granted May 18, 2004·105 cites·14 claims
- 0297US5504029AMethod of producing semiconductor integrated circuit device having memory cell and peripheral circuit MISFETsHITACHI LTD·Filed 1994·Granted Apr 2, 1996·99 cites·23 claims
- 0395US5153685ASemiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiringHITACHI LTD·Filed 1988·Granted Oct 6, 1992·72 cites·22 claims
- 0494US6608620B1Display apparatusHITACHI LTD·Filed 2000·Granted Aug 19, 2003·74 cites·27 claims
- 0591US7385355B2Display device having a thin film electron source arrayHITACHI LTD·Filed 2006·Granted Jun 10, 2008·12 cites·7 claims
- 0691US6873115B2Field emission displayHITACHI LTD·Filed 2003·Granted Mar 29, 2005·31 cites·18 claims
- 0789US6538391B1Image display and a manufacturing method of the sameHITACHI LTD·Filed 2000·Granted Mar 25, 2003·28 cites·22 claims
- 0887US6963171B2Cold cathode type flat panel displayHITACHI LTD·Filed 2003·Granted Nov 8, 2005·21 cites·11 claims
- 0983US5202275ASemiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1990·Granted Apr 13, 1993·43 cites·23 claims
- 1081US10529813B2Semiconductor device, power module, and power conversion deviceHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2018·Granted Jan 7, 2020·3 cites·15 claims
- 1181US7291966B2Display deviceHITACHI DISPLAYS LTD·Filed 2005·Granted Nov 6, 2007·5 cites·7 claims
- 1280US7218058B2Cold cathode type flat panel displayHITACHI LTD·Filed 2005·Granted May 15, 2007·4 cites·5 claims
- 1379US5780882ASemiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1995·Granted Jul 14, 1998·33 cites·8 claims
- 1477US5930624AMethod of producing semiconductor integrated circuit device having switching MISFET and capacitor element including wiringHITACHI LTD·Filed 1998·Granted Jul 27, 1999·22 cites·5 claims
- 1576US6548847B2Semiconductor integrated circuit device having a first wiring strip exposed through a connecting hole, a transition-metal film in the connecting hole and an aluminum wiring strip thereover, and a transition-metal nitride film between the aluminum wiring strip and the transition-metal filmHITACHI LTD·Filed 2001·Granted Apr 15, 2003·12 cites·33 claims
- 1674US7442961B2Image display deviceHITACHI DISPLAYS LTD·Filed 2006·Granted Oct 28, 2008·3 cites·16 claims
- 1773US6873309B2Display apparatus using luminance modulation elementsHITACHI LTD·Filed 2001·Granted Mar 29, 2005·14 cites·25 claims
- 1873US5331191ASemiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1992·Granted Jul 19, 1994·24 cites·11 claims
- 1971US6047098APlastic optical waveguide and optical switch using sameHITACHI LTD·Filed 1998·Granted Apr 4, 2000·22 cites·10 claims
- 2068US7355336B2Image display deviceHITACHI DISPLAYS LTD·Filed 2006·Granted Apr 8, 2008·1 cites·5 claims
- 2167US6765347B2Display deviceHITACHI LTD·Filed 2002·Granted Jul 20, 2004·6 cites·12 claims
- 2266US7129641B2Display device having a thin film electron source arrayHITACHI LTD·Filed 2003·Granted Oct 31, 2006·5 cites·55 claims
- 2364US7116291B1Image display and method of driving image displayHITACHI LTD·Filed 2000·Granted Oct 3, 2006·8 cites·14 claims
- 2464US7095169B2Flat panel display deviceHITACHI LTD·Filed 2003·Granted Aug 22, 2006·6 cites·20 claims
- 2562US6894334B2Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI VLSI ENG·Filed 2003·Granted May 17, 2005·5 cites·33 claims
- 2662US5309392ASemiconductor IC device using ferroelectric material in data storage cells with light assisted state transitionHITACHI LTD·Filed 1993·Granted May 3, 1994·22 cites·8 claims
- 2761US6169324B1Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1999·Granted Jan 2, 2001·13 cites·19 claims
- 2861US5739589ASemiconductor integrated circuit device process for fabricating the same and apparatus for fabricating the sameHITACHI LTD·Filed 1996·Granted Apr 14, 1998·13 cites·21 claims
- 2960US7417379B2Cold cathode type flat panel displayHITACHI LTD·Filed 2007·Granted Aug 26, 2008·0 cites·4 claims
- 3058US6975075B2Field emission displayHITACHI LTD·Filed 2004·Granted Dec 13, 2005·2 cites·12 claims
- 3157US6841946B2Display apparatus and driving method of the sameHITACHI LTD·Filed 2002·Granted Jan 11, 2005·4 cites·18 claims
- 3254US6614169B2Display device using thin film cathode and its processHITACHI LTD·Filed 2001·Granted Sep 2, 2003·2 cites·18 claims
- 3353US7310076B2Display apparatusHITACHI LTD·Filed 2004·Granted Dec 18, 2007·3 cites·24 claims
- 3453US5753550ASemiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiringHITACHI LTD·Filed 1996·Granted May 19, 1998·7 cites·20 claims
- 3552US2009184895A1Plasma display panel and display device having the sameHITACHI LTD·Filed 2008·Application pending·0 cites
- 3652US2008185955A1Image Display DeviceSAGAWA MASAKAZU·Filed 2008·Application pending·0 cites
- 3751US12339309B2Energization inspection apparatus, method for manufacturing semiconductor device, and energization methodHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2022·Granted Jun 24, 2025·0 cites·5 claims
- 3851US10522638B2Semiconductor chip and power module, and manufacturing method of the sameHITACHI POWER SEMICONDUCTOR DEVICE LTD·Filed 2018·Granted Dec 31, 2019·0 cites·15 claims
- 3951US7750548B2Image display deviceHITACHI LTD·Filed 2007·Granted Jul 6, 2010·0 cites·10 claims
- 4051US6342412B1Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1999·Granted Jan 29, 2002·8 cites·19 claims
- 4151US2008290781A1Emissive Display ApparatusMIKAMI YOSHIRO·Filed 2008·Application pending·0 cites
- 4251US2011155226A1Compound thin film solar cell, method of manufacturing a compound thin film solar cell, and a compound thin film solar cell moduleHITACHI LTD·Filed 2010·Application pending·0 cites
- 4350US6127255ASemiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the sameHITACHI LTD·Filed 1997·Granted Oct 3, 2000·8 cites·12 claims
- 4450US5811316AMethod of forming teos oxide and silicon nitride passivation layer on aluminum wiringHITACHI LTD·Filed 1995·Granted Sep 22, 1998·8 cites·13 claims
- 4549US7919911B2Image display apparatusHITACHI LTD·Filed 2008·Granted Apr 5, 2011·0 cites·18 claims
- 4649US2009001870A1Image Display ApparatusHITACHI LTD·Filed 2008·Application pending·0 cites
- 4749US2007200801A1Display deviceHITACHI DISPLAYS LTD·Filed 2007·Application pending·0 cites
- 4849US2007228929A1Display apparatusHITACHI DISPLAYS LTD·Filed 2007·Application pending·0 cites
- 4948US6818941B1Thin film electron emitter, display device using the same and applied machineHITACHI LTD·Filed 1999·Granted Nov 16, 2004·7 cites·46 claims
- 5048US2007216283A1Image display apparatusHITACHI DISPLAYS LTD·Filed 2007·Application pending·0 cites
Showing the top 50 of 81 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masakazu Sagawa 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 →