Inventor
HIRATA SEIICHIRO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA SEIICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
12 patentsUS5265025ANov 23, 1993
Navigation system using satellite signals
MITSUBISHI ELECTRIC CORP216 citations98
US5257195AOct 26, 1993
On-board vehicle position detector
MITSUBISHI ELECTRIC CORP143 citations97
US4903212AFeb 20, 1990
GPS/self-contained combination type navigation system
MITSUBISHI ELECTRIC CORP428 citations97
US6329946B1Dec 11, 2001
GPS position measuring system and GPS position measuring apparatus
MITSUBISHI ELECTRIC CORP64 citations94
US6297770B1Oct 2, 2001
Global positioning system and global positioning method with improved sensitivity by detecting navigation data inversion boundaries
MITSUBISHI ELECTRIC CORP27 citations92
US5280642AJan 18, 1994
Radio receiver for identifying a region transmitting a broadcast signal
MITSUBISHI ELECTRIC CORP50 citations92
US4688176AAug 18, 1987
Navigator for use aboard a vehicle
MITSUBISHI ELECTRIC CORP44 citations92
US6674402B2Jan 6, 2004
Global positioning system and global positioning apparatus
MITSUBISHI ELECTRIC CORP16 citations90
US6483457B2Nov 19, 2002
Global positioning system and global positioning apparatus
MITSUBISHI ELECTRIC CORP23 citations90
US6437736B2Aug 20, 2002
Global positioning method, terminal, and system
MITSUBISHI ELECTRIC CORP12 citations73
US4414687ANov 8, 1983
Radio receiver
MITSUBISHI ELECTRIC CORP10 citations73
US7764227B2Jul 27, 2010
Positioning apparatus
MITSUBISHI ELECTRIC CORP0 citations38