Inventor
KOUGAMI AKIHIKO
JP13 patents
⚠️ This page may combine multiple inventors who share the name “KOUGAMI AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS6518977B1Feb 11, 2003
Color image display apparatus and method
HITACHI LTD73 citations96
US6208467B1Mar 27, 2001
Display apparatus for displaying an image having gradation
HITACHI LTD37 citations96
US6014258AJan 11, 2000
Color image display apparatus and method
HITACHI LTD54 citations96
US6100939AAug 8, 2000
Tone display method and apparatus for displaying image signal
HITACHI LTD63 citations95
US6028573AFeb 22, 2000
Driving method and apparatus for display device
HITACHI LTD61 citations95
US6407506B1Jun 18, 2002
Display apparatus, display method and control-drive circuit for display apparatus
HITACHI LTD31 citations92
US6333766B1Dec 25, 2001
Tone display method and apparatus for displaying image signal
HITACHI LTD18 citations92
US6008687ADec 28, 1999
Switching circuit and display device using the same
HITACHI LTD28 citations91
US6741227B2May 25, 2004
Color image display apparatus and method
HITACHI LTD16 citations84
US6633268B2Oct 14, 2003
AC-type plasma display apparatus
HITACHI LTD8 citations74
US6504310B2Jan 7, 2003
Display apparatus
HITACHI LTD5 citations62
US4799058AJan 17, 1989
Driving apparatus for a gas discharge display panel
HITACHI LTD4 citations62