Inventor
YAMAUCHI TSUKASA
JP7 patents
Patents
7 patentsUS5852447ADec 22, 1998
Character and figure transforming system
HITACHI LTD58 citations94
US5781731AJul 14, 1998
Schedule management support system
HITACHI LTD90 citations94
US5539868AJul 23, 1996
Character and figure transferring system
HITACHI LTD72 citations94
US5247610ASep 21, 1993
Method and apparatus for generating graphics
HITACHI LTD39 citations91
US4176288ANov 27, 1979
Zero voltage switching solid state relay
HITACHI LTD26 citations81
US5687221ANov 11, 1997
Information processing apparatus having speech and non-speech communication functions
HITACHI LTD17 citations72
US9648286B2May 9, 2017
Video monitoring system, video monitoring method, and video monitoring system building method
HITACHI LTD0 citations40