Inventor
HISAMITSU TORU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “HISAMITSU TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS7047255B2May 16, 2006
Document information display system and method, and document search method
HITACHI LTD35 citations91
US6850937B1Feb 1, 2005
Word importance calculation method, document retrieving interface, word dictionary making method
HITACHI LTD44 citations91
US5768451AJun 16, 1998
Character recognition method and apparatus
HITACHI LTD48 citations89
US7277881B2Oct 2, 2007
Document retrieval system and search server
HITACHI LTD14 citations83
US7065518B2Jun 20, 2006
Search system
HITACHI LTD4 citations61
US10395766B2Aug 27, 2019
Diagnostic process analysis system
HITACHI LTD0 citations37