Inventor
HASEGAWA MASATOSHI
JP48 patents
⚠️ This page may combine multiple inventors who share the name “HASEGAWA MASATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
23 patentsUS7177215B2Feb 13, 2007
Semiconductor memory device operating at high speed and low power consumption
HITACHI LTD123 citations98
US6977856B2Dec 20, 2005
Semiconductor integrated circuit device operating at high speed and low power consumption
HITACHI LTD115 citations98
US6795358B2Sep 21, 2004
Semiconductor integrated circuit device
HITACHI LTD130 citations98
US5726930AMar 10, 1998
Semiconductor memory device
HITACHI LTD59 citations96
US7016214B2Mar 21, 2006
Semiconductor integrated circuit device
HITACHI LTD195 citations95
US6201728B1Mar 13, 2001
Dynamic RAM, semiconductor storage device, and semiconductor integrated circuit device
HITACHI LTD60 citations95
US6603688B2Aug 5, 2003
Semiconductor memory device having improved arrangement for replacing failed bit lines
HITACHI LTD23 citations93
US6954371B2Oct 11, 2005
Semiconductor integrated circuit device
HITACHI LTD23 citations92
US6794678B2Sep 21, 2004
Semiconductor integrated circuit device, method of testing semiconductor integrated circuit device and method of manufacturing semiconductor integrated circuit device
HITACHI LTD16 citations92
US5905685AMay 18, 1999
Dynamic memory
HITACHI LTD48 citations92
US5615145AMar 25, 1997
Semiconductor memory with ferroelectric capacitors
HITACHI LTD50 citations92
US6411543B2Jun 25, 2002
Dynamic random access memory (RAM), semiconductor storage device, and semiconductor integrated circuit (IC) device
HITACHI LTD43 citations91
US5963467AOct 5, 1999
Semiconductor memory device
HITACHI LTD41 citations91
US7440350B2Oct 21, 2008
Semiconductor integrated circuit device
HITACHI LTD15 citations82
US6909646B2Jun 21, 2005
Semiconductor memory device having improved arrangement for replacing failed bit lines
HITACHI LTD8 citations74
US6865127B2Mar 8, 2005
Semiconductor integrated circuit device
HITACHI LTD5 citations74
US7145792B2Dec 5, 2006
Semiconductor integrated circuit device
HITACHI LTD10 citations73
US6178108B1Jan 23, 2001
Semiconductor memory device
HITACHI LTD10 citations72
US7023749B2Apr 4, 2006
Semiconductor integrated circuit device
HITACHI LTD2 citations63
US7729198B2Jun 1, 2010
Synchronous memory circuit
HITACHI LTD2 citations62
US7403408B2Jul 22, 2008
Semiconductor memory device and semiconductor device
HITACHI LTD2 citations62
US7251149B2Jul 31, 2007
Semiconductor memory device provided with a write column selection switch and a read column selection switch separately
HITACHI LTD3 citations62
US7129549B2Oct 31, 2006
Semiconductor integrated circuit device
HITACHI LTD1 citations46
HITACHI ULSI SYS CO LTD
4 patentsUS7193912B2Mar 20, 2007
Semiconductor integrated circuit device
HITACHI ULSI SYS CO LTD32 citations91
US7184330B2Feb 27, 2007
Semiconductor memory device
HITACHI ULSI SYS CO LTD9 citations73
US7162671B2Jan 9, 2007
Semiconductor integrated circuit device, method of testing semiconductor integrated circuit device and method of manufacturing semiconductor integrated circuit device
HITACHI ULSI SYS CO LTD6 citations73
US7113434B2Sep 26, 2006
Semiconductor integrated circuit having programmable delays for generating timing signals with time difference being non-integral multiple of clock cycle
HITACHI ULSI SYS CO LTD5 citations62
HASEGAWA MASATOSHI
3 patentsUS8466252B2Jun 18, 2013
Optical film, optical film manufacturing method, transparent substrate, image display device, and solar cell
HASEGAWA MASATOSHI2 citations61
US9023974B2May 5, 2015
Ester group-containing tetracarboxylic acid dianhydride, novel polyesterimide precursor derived therefrom, and polyesterimide
HASEGAWA MASATOSHI1 citations50
US9096566B2Aug 4, 2015
Ester group-containing tetracarboxylic acid dianhydride, polyester polyimide precursor, polyesterimide, and methods for producing same
HASEGAWA MASATOSHI0 citations41
YAMAHA CORP
3 patentsUS12212941B2Jan 28, 2025
Signal processing apparatus and signal processing method
YAMAHA CORP0 citations52
US9753689B2Sep 5, 2017
Audio processing apparatus
YAMAHA CORP1 citations52
US12585422B2Mar 24, 2026
Data processing method of processing multitrack audio data and data processing apparatus
YAMAHA CORP0 citations46
SONY CORP
2 patentsUS7521167B2Apr 21, 2009
Ester group-containing poly (imide-azomethine) copolymer, ester group-containing poly (amide acid-azomethine) copolymer, and positive photosensitive resin composition
SONY CORP7 citations74
US7635551B2Dec 22, 2009
Poly (imide-azomethine) copolymer, poly (amic acid-azomethine) copolymer, and positive photosensitive resin composition
SONY CORP2 citations63