Inventor
SHIBA TAKASHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “SHIBA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS6134264AOct 17, 2000
Spread spectrum communication device and communication system
HITACHI LTD45 citations92
US5175711ADec 29, 1992
Surface acoustic wave apparatus and method of productivity and adjustment of the same
HITACHI LTD15 citations74
US4918349AApr 17, 1990
Surface acoustic wave device having apodized transducer provided with irregular pitch electrode group
HITACHI LTD16 citations74
US5905324AMay 18, 1999
Surface acoustic wave device and communication device employing the surface acoustic wave device
HITACHI LTD11 citations72
US4760359AJul 26, 1988
Surface acoustic wave resonator
HITACHI LTD11 citations70
US5729076AMar 17, 1998
Surface acoustic wave device, equipment including the same with electric circuit connected thereto and measuring method of parameters thereof
HITACHI LTD3 citations63
US4818961AApr 4, 1989
Surface acoustic wave filter with capacitive phase shifter
HITACHI LTD5 citations63
US4775846AOct 4, 1988
Unidirectional surface acoustic wave device
HITACHI LTD5 citations63
US4689586AAug 25, 1987
Surface elastic wave device
HITACHI LTD6 citations63
US6697418B1Feb 24, 2004
Spread spectrum communication device and communication system
HITACHI LTD2 citations62
US5331247AJul 19, 1994
Surface acoustic wave device and communication device using the same
HITACHI LTD6 citations62
US4728912AMar 1, 1988
Elastic surface wave device
HITACHI LTD4 citations54
US7274729B2Sep 25, 2007
Spread spectrum communication device and communication system
HITACHI LTD0 citations52
HITACHI MEDIA ELECTRON KK
5 patentsUS6057630AMay 2, 2000
Surface acoustic wave device
HITACHI MEDIA ELECTRON KK14 citations73
US7570622B2Aug 4, 2009
High-frequency circuit apparatus and communication apparatus using the same
HITACHI MEDIA ELECTRON KK4 citations61
US7760691B2Jul 20, 2010
High-frequency circuit apparatus and communication apparatus using the same
HITACHI MEDIA ELECTRON KK0 citations50
US7876031B2Jan 25, 2011
Piezoelectric thin-film acoustic wave device and information processing unit using the same
HITACHI MEDIA ELECTRON KK0 citations49
US7714485B2May 11, 2010
Piezoelectric thin-film acoustic wave device and information processing unit using the same
HITACHI MEDIA ELECTRON KK0 citations49