Inventor
OBA MICHIKO
JP6 patents
Patents
6 patentsUS5764898AJun 9, 1998
System for task tracking and controlling electronic mail
HITACHI LTD76 citations95
US5241465AAug 31, 1993
Method for determining optimum schedule in computer-aided scheduling system
HITACHI LTD101 citations95
US5303144AApr 12, 1994
Computer aided planning support system
HITACHI LTD71 citations94
US6434603B1Aug 13, 2002
System for task tracking and controlling electronic mail
HITACHI LTD23 citations92
US6047315AApr 4, 2000
System for task tracking and controlling electronic mail
HITACHI LTD32 citations92
US5303147AApr 12, 1994
Computer aided planning method and system
HITACHI LTD27 citations92