Inventor
EHARA HISANORI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “EHARA HISANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
8 patentsUS6377140B1Apr 23, 2002
Saw resonator filter with bridged-T configuration
OKI ELECTRIC IND CO LTD170 citations98
US5905418AMay 18, 1999
Surface-acoustic-wave filters with poles of attenuation created by impedance circuits
OKI ELECTRIC IND CO LTD97 citations97
US6765456B2Jul 20, 2004
Surface acoustic wave duplexer and portable communication device using the same
OKI ELECTRIC IND CO LTD22 citations92
USRE37639EApr 9, 2002
Surface-acoustic-wave filters with poles of attenuation created by impedance circuits
OKI ELECTRIC IND CO LTD25 citations92
US6424239B1Jul 23, 2002
Differential surface acoustic wave filter
OKI ELECTRIC IND CO LTD10 citations71
US6911878B2Jun 28, 2005
Acoustic wave branching filter having transmitting filter with optimal power handling
OKI ELECTRIC IND CO LTD2 citations61
US7420440B2Sep 2, 2008
Transmitting filter including SAW resonators
OKI ELECTRIC IND CO LTD0 citations51
US6861925B2Mar 1, 2005
Surface acoustic wave filter
OKI ELECTRIC IND CO LTD0 citations51