Inventor
KIUCHI ITSUKO
JP6 patents
Patents
6 patentsUS6182062B1Jan 30, 2001
Knowledge based information retrieval system
HITACHI LTD158 citations98
US5555408ASep 10, 1996
Knowledge based information retrieval system
HITACHI LTD177 citations98
US5404506AApr 4, 1995
Knowledge based information retrieval system
HITACHI LTD274 citations98
US5644740AJul 1, 1997
Method and apparatus for displaying items of information organized in a hierarchical structure
HITACHI LTD373 citations97
US5696916ADec 9, 1997
Information storage and retrieval system and display method therefor
HITACHI LTD157 citations96
US5553226ASep 3, 1996
System for displaying concept networks
HITACHI LTD99 citations96