DY

Dou Yuanzhu

AC Alps Electric Co.: 39 patents #13 of 2,177Top 1%
Overall (All Time): #83,352 of 4,157,543Top 3%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
6580400 Primary radiator having improved receiving efficiency by reducing side lobes Keiichiro Sato, Toshiaki Konno, Shuji Saito 2003-06-17
6567054 Primary radiator suitable for miniaturization 2003-05-20
6552636 Small-sized cylindrical waveguide bend having low reflection characteristic 2003-04-22
6529089 Circularly polarized wave generator using a dielectric plate as a 90° phase shifter 2003-03-04
6501432 Primary radiator capable of achieving both low reflection and low loss 2002-12-31
6452559 Circular-Polarized-wave converter 2002-09-17
6445356 Primary radiator having reduced side lobe 2002-09-03
6437753 Primary radiator suitable for size reduction and preventing deterioration of cross polarization characteristic 2002-08-20
6437754 Primary radiator having a shorter dielectric plate 2002-08-20
6353417 Primary radiator in which the total length of dielectric feeder is reduced 2002-03-05
6320554 Feed horn having elliptic open end 2001-11-20
6313808 Freedhorn capable of receiving radio waves from plurality of neighboring satellites 2001-11-06
6301464 Satellite broadcasting converter 2001-10-09
6124830 Planar antenna 2000-09-26