Inventor
MARUYAMA KISHIKO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA KISHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
9 patentsUS6922630B2Jul 26, 2005
Portable terminal with the function of walking navigation
HITACHI LTD99 citations98
US6748317B2Jun 8, 2004
Portable terminal with the function of walking navigation
HITACHI LTD104 citations98
US6430498B1Aug 6, 2002
Portable terminal with the function of walking navigation
HITACHI LTD253 citations98
US7248965B2Jul 24, 2007
Map information supply device for mobile units
HITACHI LTD60 citations97
US6295066B1Sep 25, 2001
Method for generating virtual three-dimensional space
HITACHI LTD56 citations96
US6580999B2Jun 17, 2003
Portable terminal with the function of walking navigation
HITACHI LTD65 citations95
US7392133B2Jun 24, 2008
Car navigation system
HITACHI LTD48 citations92
US5978520ANov 2, 1999
Method of recognizing image data and apparatus therefor
HITACHI LTD44 citations90
US7839306B2Nov 23, 2010
Map display method
HITACHI LTD9 citations84
ZANAVY INFORMATICS KK
6 patentsUS7522997B2Apr 21, 2009
Navigation apparatus
ZANAVY INFORMATICS KK20 citations84
US7668650B2Feb 23, 2010
On-vehicle information terminal, abridged map generating apparatus, abridged map display method and display apparatus
ZANAVY INFORMATICS KK2 citations62
US7561962B2Jul 14, 2009
Abridged map generating apparatus, on-vehicle information terminal, abridged map distribution system and abridged map generating method
ZANAVY INFORMATICS KK4 citations62
US7493212B2Feb 17, 2009
Abridged map generating apparatus, on-vehicle information terminal, abridged map distribution system and abridged map generating method
ZANAVY INFORMATICS KK6 citations62
US7477269B2Jan 13, 2009
Abridged map generating apparatus, on-vehicle information terminal, abridged map distribution system and abridged map generating method
ZANAVY INFORMATICS KK3 citations62
US7327366B2Feb 5, 2008
Navigation apparatus, map data distribution apparatus, map data distribution system and map display method
ZANAVY INFORMATICS KK0 citations51
HITACHI SOLUTIONS LTD
3 patentsUS12511865B2Dec 30, 2025
Overhead wire recognition device and overhead wire recognition method
HITACHI SOLUTIONS LTD0 citations51
US11295130B2Apr 5, 2022
Aerial line extraction system and aerial line extraction method
HITACHI SOLUTIONS LTD0 citations51
US11495026B2Nov 8, 2022
Aerial line extraction system and method
HITACHI SOLUTIONS LTD0 citations50