Inventor
OKAMOTO TOSHIHARU
JP21 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO TOSHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
7 patentsUS6229379B1May 8, 2001
Generation of negative voltage using reference voltage
NEC CORP60 citations96
US6154100ANov 28, 2000
Ring oscillator and delay circuit using low threshold voltage type MOSFETS
NEC CORP62 citations96
US5781489AJul 14, 1998
Semiconductor storage device
NEC CORP35 citations92
US5646891AJul 8, 1997
Electrically erasable and programmable read only memory device with erase verify circuit for exactly verifying erased state of memory cells
NEC CORP34 citations92
US5760630AJun 2, 1998
Input protection circuit having load resistor implemented by p-channel MIS transistor
NEC CORP15 citations73
US5726938AMar 10, 1998
Semiconductor device provided with a level conversion means for enabling a connection between logic circuits
NEC CORP8 citations73
US5446693AAug 29, 1995
Semiconductor storage device
NEC CORP18 citations73
NISSHIN SPINNING
5 patentsUS5706165AJan 6, 1998
Electric double-layer capacitor
NISSHIN SPINNING89 citations96
US5786555AJul 28, 1998
Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using said polarizable electrode
NISSHIN SPINNING70 citations95
US6764624B2Jul 20, 2004
Method of producing fuel cell separator, fuel cell separator, and polymer electrolyte fuel cell
NISSHIN SPINNING22 citations92
US6436567B1Aug 20, 2002
Separator for fuel cells
NISSHIN SPINNING21 citations92
US5838531ANov 17, 1998
Polarizable electrode for electric double-layer capacitor, and electric double-layer capacitor using polarizable electrode
NISSHIN SPINNING10 citations74
NEC ELECTRONICS CORP
4 patentsUS7274248B2Sep 25, 2007
Booster circuit and semiconductor device having same
NEC ELECTRONICS CORP28 citations92
US7746161B2Jun 29, 2010
Semiconductor integrated circuit device having internal voltage generating circuit
NEC ELECTRONICS CORP4 citations62
US6601003B2Jul 29, 2003
Operating efficiency of a nonvolatile memory
NEC ELECTRONICS CORP4 citations62
US7446594B2Nov 4, 2008
Booster circuit including an oscillator
NEC ELECTRONICS CORP3 citations61