Inventor
SAGAWA MASAKAZU
JP50 patents
⚠️ This page may combine multiple inventors who share the name “SAGAWA MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
39 patentsUS6737318B2May 18, 2004
Semiconductor integrated circuit device having switching misfet and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD105 citations99
US5504029AApr 2, 1996
Method of producing semiconductor integrated circuit device having memory cell and peripheral circuit MISFETs
HITACHI LTD99 citations97
US6608620B1Aug 19, 2003
Display apparatus
HITACHI LTD74 citations96
US5780882AJul 14, 1998
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD33 citations96
US5331191AJul 19, 1994
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD24 citations96
US5202275AApr 13, 1993
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD43 citations96
US5153685AOct 6, 1992
Semiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD72 citations96
US5309392AMay 3, 1994
Semiconductor IC device using ferroelectric material in data storage cells with light assisted state transition
HITACHI LTD22 citations93
US6963171B2Nov 8, 2005
Cold cathode type flat panel display
HITACHI LTD21 citations92
US6873115B2Mar 29, 2005
Field emission display
HITACHI LTD31 citations92
US6538391B1Mar 25, 2003
Image display and a manufacturing method of the same
HITACHI LTD28 citations92
US6047098AApr 4, 2000
Plastic optical waveguide and optical switch using same
HITACHI LTD22 citations92
US5930624AJul 27, 1999
Method of producing semiconductor integrated circuit device having switching MISFET and capacitor element including wiring
HITACHI LTD22 citations92
US7385355B2Jun 10, 2008
Display device having a thin film electron source array
HITACHI LTD12 citations84
US6873309B2Mar 29, 2005
Display apparatus using luminance modulation elements
HITACHI LTD14 citations84
US6548847B2Apr 15, 2003
Semiconductor 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 film
HITACHI LTD12 citations82
US6342412B1Jan 29, 2002
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD8 citations82
US6169324B1Jan 2, 2001
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD13 citations82
US6127255AOct 3, 2000
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD8 citations82
US5811316ASep 22, 1998
Method of forming teos oxide and silicon nitride passivation layer on aluminum wiring
HITACHI LTD8 citations82
US5739589AApr 14, 1998
Semiconductor integrated circuit device process for fabricating the same and apparatus for fabricating the same
HITACHI LTD13 citations82
US5753550AMay 19, 1998
Semiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD7 citations74
US5557147ASep 17, 1996
Semiconductor integrated circuit device, process for fabricating the same, and apparatus for fabricating the same
HITACHI LTD7 citations74
US7116291B1Oct 3, 2006
Image display and method of driving image display
HITACHI LTD8 citations73
US6818941B1Nov 16, 2004
Thin film electron emitter, display device using the same and applied machine
HITACHI LTD7 citations73
US6570321B1May 27, 2003
Thin-film electron source, process for manufacturing thin-film electron source, and display
HITACHI LTD7 citations73
US7310076B2Dec 18, 2007
Display apparatus
HITACHI LTD3 citations63
US7218058B2May 15, 2007
Cold cathode type flat panel display
HITACHI LTD4 citations63
US7129641B2Oct 31, 2006
Display device having a thin film electron source array
HITACHI LTD5 citations63
US6975075B2Dec 13, 2005
Field emission display
HITACHI LTD2 citations63
US6841946B2Jan 11, 2005
Display apparatus and driving method of the same
HITACHI LTD4 citations63
US6765347B2Jul 20, 2004
Display device
HITACHI LTD6 citations63
US6614169B2Sep 2, 2003
Display device using thin film cathode and its process
HITACHI LTD2 citations63
US7095169B2Aug 22, 2006
Flat panel display device
HITACHI LTD6 citations61
USRE41828EOct 19, 2010
Image display and a manufacturing method of the same
HITACHI LTD0 citations52
US7417379B2Aug 26, 2008
Cold cathode type flat panel display
HITACHI LTD0 citations52
US7919911B2Apr 5, 2011
Image display apparatus
HITACHI LTD0 citations42
US7750548B2Jul 6, 2010
Image display device
HITACHI LTD0 citations42
US7298080B2Nov 20, 2007
Display device
HITACHI LTD0 citations41
HITACHI POWER SEMICONDUCTOR DEVICE LTD
3 patentsUS10529813B2Jan 7, 2020
Semiconductor device, power module, and power conversion device
HITACHI POWER SEMICONDUCTOR DEVICE LTD3 citations72
US10522638B2Dec 31, 2019
Semiconductor chip and power module, and manufacturing method of the same
HITACHI POWER SEMICONDUCTOR DEVICE LTD0 citations52
US12339309B2Jun 24, 2025
Energization inspection apparatus, method for manufacturing semiconductor device, and energization method
HITACHI POWER SEMICONDUCTOR DEVICE LTD0 citations50