Inventor
OHKUMA SADAYUKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “OHKUMA SADAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6195306B1Feb 27, 2001
Semiconductor device
HITACHI LTD57 citations96
US5638335AJun 10, 1997
Semiconductor device
HITACHI LTD91 citations96
US5115413AMay 19, 1992
Semiconductor memory device
HITACHI LTD55 citations96
US6870790B2Mar 22, 2005
Semiconductor device having a power down mode
HITACHI LTD15 citations93
US6680875B2Jan 20, 2004
Semiconductor device, such as a synchronous DRAM, including a control circuit for reducing power consumption
HITACHI LTD13 citations93
US5497353AMar 5, 1996
Semiconductor memory device
HITACHI LTD19 citations92
US5313423AMay 17, 1994
Semiconductor memory device
HITACHI LTD24 citations92
US7082074B2Jul 25, 2006
Semiconductor device having a power down mode
HITACHI LTD9 citations82
US7072202B2Jul 4, 2006
Semiconductor device having a power down mode
HITACHI LTD10 citations82
US7411856B2Aug 12, 2008
Semiconductor device with improved power supply arrangement
HITACHI LTD3 citations74
US7298662B2Nov 20, 2007
Semiconductor device with power down arrangement for reduce power consumption
HITACHI LTD7 citations74
US5436870AJul 25, 1995
Semiconductor memory device
HITACHI LTD7 citations74
US5274594ADec 28, 1993
Static RAM
HITACHI LTD7 citations74
US7411855B2Aug 12, 2008
Semiconductor device with improved power supply arrangement
HITACHI LTD1 citations63