Inventor
AOKI MASAKAZU
JP152 patents
⚠️ This page may combine multiple inventors who share the name “AOKI MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
43 patentsUS5910924AJun 8, 1999
Semiconductor integrated circuit including voltage converter effective at low operational voltages
HITACHI LTD154 citations99
US5724297AMar 3, 1998
Semiconductor integrated circuit device and method of activating the same
HITACHI LTD138 citations99
US5614847AMar 25, 1997
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD140 citations99
US5583457ADec 10, 1996
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD251 citations99
US5539279AJul 23, 1996
Ferroelectric memory
HITACHI LTD218 citations99
US4661929AApr 28, 1987
Semiconductor memory having multiple level storage structure
HITACHI LTD239 citations99
US6535435B2Mar 18, 2003
Reference voltage generator permitting stable operation
HITACHI LTD82 citations98
US6335893B1Jan 1, 2002
Semiconductor integrated circuit device
HITACHI LTD91 citations98
US5629898AMay 13, 1997
Dynamic memory device, a memory module, and a method of refreshing a dynamic memory device
HITACHI LTD142 citations98
US5274601ADec 28, 1993
Semiconductor integrated circuit having a stand-by current reducing circuit
HITACHI LTD150 citations98
US4942556AJul 17, 1990
Semiconductor memory device
HITACHI LTD125 citations98
US6696865B2Feb 24, 2004
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD32 citations96
US6337817B1Jan 8, 2002
Semiconductor device having redundancy circuit
HITACHI LTD34 citations96
US6222406B1Apr 24, 2001
Semiconductor integrated circuit device, semiconductor memory system and clock synchronous circuit
HITACHI LTD55 citations96
US6128248AOct 3, 2000
Semiconductor memory device including a clocking circuit for controlling the read circuit operation
HITACHI LTD50 citations96
US5955905ASep 21, 1999
Signal generator with synchronous mirror delay circuit
HITACHI LTD54 citations96
US5926430AJul 20, 1999
Semiconductor integrated circuit device and method of activating the same
HITACHI LTD52 citations96
US5880604AMar 9, 1999
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD79 citations96
US5828235AOct 27, 1998
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD34 citations96
US5617365AApr 1, 1997
Semiconductor device having redundancy circuit
HITACHI LTD48 citations96
US5600163AFeb 4, 1997
Semiconductor element and semiconductor memory device using the same
HITACHI LTD32 citations96
US5455786AOct 3, 1995
Ferroelectric memory
HITACHI LTD62 citations96
US5426616AJun 20, 1995
Semiconductor IC device having a voltage conversion circuit which generates an internal supply voltage having value compensated for external supply voltage variations
HITACHI LTD95 citations96
US5384740AJan 24, 1995
Reference voltage generator
HITACHI LTD54 citations96
US5272393ADec 21, 1993
Voltage converter of semiconductor device
HITACHI LTD66 citations96
US5265055ANov 23, 1993
Semiconductor memory having redundancy circuit
HITACHI LTD59 citations96
US5262993ANov 16, 1993
Semiconductor memory having redundancy circuit with means to switch power from a normal memory block to a spare memory block
HITACHI LTD41 citations96
US5056095AOct 8, 1991
Semiconductor memory having error correction circuit
HITACHI LTD76 citations96
US4994688AFeb 19, 1991
Semiconductor device having a reference voltage generating circuit
HITACHI LTD105 citations96
US4726021AFeb 16, 1988
Semiconductor memory having error correcting means
HITACHI LTD71 citations96
US4701884AOct 20, 1987
Semiconductor memory for serial data access
HITACHI LTD120 citations96
US4653025AMar 24, 1987
Random access memory with high density and low power
HITACHI LTD58 citations96
US5364250ANov 15, 1994
Oil-free screw compressor and method of manufacture
HITACHI LTD65 citations95
US6611458B2Aug 26, 2003
Semiconductor integrated circuit device
HITACHI LTD23 citations93
US6504402B2Jan 7, 2003
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD16 citations93
US6461112B1Oct 8, 2002
Screw compression apparatus and operation control method thereof
HITACHI LTD39 citations93
US6414530B2Jul 2, 2002
Semiconductor integrated circuit device, semiconductor memory system and clock synchronous circuit
HITACHI LTD19 citations93
US6404239B1Jun 11, 2002
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD23 citations93
US6175251B1Jan 16, 2001
Semiconductor integrated circuit device having power reduction
HITACHI LTD17 citations93
US6107836AAug 22, 2000
Semiconductor integrated circuit device having power reduction mechanism
HITACHI LTD34 citations93
US5818792AOct 6, 1998
Semiconductor memory device and memory module using the same
HITACHI LTD19 citations93
US5528548AJun 18, 1996
Voltage converter of semiconductor device
HITACHI LTD42 citations93
US5447422ASep 5, 1995
Air-cooled oil-free rotary-type compressor
HITACHI LTD20 citations93
RENESAS TECH CORP
5 patentsUS6909647B2Jun 21, 2005
Semiconductor device having redundancy circuit
RENESAS TECH CORP38 citations96
US7750668B2Jul 6, 2010
Semiconductor integrated circuit device having power reduction mechanism
RENESAS TECH CORP13 citations93
US7312640B2Dec 25, 2007
Semiconductor integrated circuit device having power reduction mechanism
RENESAS TECH CORP18 citations93
US6894944B2May 17, 2005
Semiconductor integrated circuit device
RENESAS TECH CORP34 citations93
US6754114B2Jun 22, 2004
Semiconductor device having redundancy circuit
RENESAS TECH CORP13 citations93
KAO CORP
1 patentFUJI HEAVY IND LTD
1 patentShowing the top 50 of 152 patents by PatentIndex Score.