Inventor
HIRAO YASUHIRO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “HIRAO YASUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO ELECTRIC CO
13 patentsUS5844453ADec 1, 1998
Surface acoustic wave filter utilizing a transducer having interdigital electrodes and continuously adjacent electrodes
SANYO ELECTRIC CO27 citations92
US5760522AJun 2, 1998
Surface acoustic wave device
SANYO ELECTRIC CO19 citations92
US5534829AJul 9, 1996
Antenna duplexer
SANYO ELECTRIC CO28 citations92
US5543757AAug 6, 1996
Surface acoustic wave filter including alternate open and shorted reflector grating
SANYO ELECTRIC CO17 citations81
US6037699AMar 14, 2000
Surface acoustic wave device
SANYO ELECTRIC CO14 citations73
US5808523ASep 15, 1998
High frequency filter including both dielectric and surface acoustic wave resonators
SANYO ELECTRIC CO6 citations73
US5877662AMar 2, 1999
Surface acoustic wave filter including series and parallel interdigital transducers
SANYO ELECTRIC CO11 citations72
US6191668B1Feb 20, 2001
Coaxial resonator and dielectric filter using the same
SANYO ELECTRIC CO4 citations63
US6034577AMar 7, 2000
Integrated interdigital electrode saw filter with specified distances between input/output electrodes
SANYO ELECTRIC CO3 citations62
US5719537AFeb 17, 1998
Surface acoustic wave filter with range of a frequency difference between resonance frequencies of series and parallel resonators
SANYO ELECTRIC CO3 citations62
US5719536AFeb 17, 1998
Surface acoustic wave filter with optimized parallel and series resonator capacitances
SANYO ELECTRIC CO4 citations62
US5663697ASep 2, 1997
Surface accoustic wave filter
SANYO ELECTRIC CO1 citations61
US5675207AOct 7, 1997
Surface acoustic waver convolver
SANYO ELECTRIC CO1 citations52
MAEKAWA SEISAKUSHO KK
6 patentsUS6165053ADec 26, 2000
Method and apparatus for processing in cold air blast
MAEKAWA SEISAKUSHO KK28 citations84
US7322204B2Jan 29, 2008
Low temperature zoning formation system for holding freshness of food
MAEKAWA SEISAKUSHO KK12 citations77
US6532761B2Mar 18, 2003
Low temperature physical distribution system and method and apparatus for maintaining quality in auction market
MAEKAWA SEISAKUSHO KK4 citations62
US6334332B1Jan 1, 2002
Low temperature waste crushing system taking advantage of cold shortness
MAEKAWA SEISAKUSHO KK5 citations61
US6792768B2Sep 21, 2004
Low temperature physical distribution system and method and apparatus for maintaining quality in auction market
MAEKAWA SEISAKUSHO KK0 citations52
US7051546B2May 30, 2006
Defrosting system using compressed air
MAEKAWA SEISAKUSHO KK1 citations45