Inventor
IKEDA HISASHI
16 patents
⚠️ This page may combine multiple inventors who share the name “IKEDA HISASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
9 patentsUS6477239B1Nov 5, 2002
Sign language telephone device
HITACHI LTD217 citations98
US6181778B1Jan 30, 2001
Chronological telephone system
HITACHI LTD162 citations98
US5990878ANov 23, 1999
Sign language editing apparatus
HITACHI LTD94 citations97
US7100110B2Aug 29, 2006
System for filling in documents using an electronic pen
HITACHI LTD17 citations78
US6912516B1Jun 28, 2005
Place name expressing dictionary generating method and its apparatus
HITACHI LTD9 citations73
US7231601B2Jun 12, 2007
Application system with function for preventing modification
HITACHI LTD8 citations72
US7907797B2Mar 15, 2011
Image processing apparatus
HITACHI LTD6 citations62
US7843590B2Nov 30, 2010
Information management method and information management system
HITACHI LTD4 citations57
US7783634B2Aug 24, 2010
Device, a program and a system for managing electronic documents
HITACHI LTD0 citations41