Inventor

HIGASA MASAHIKO

JP3 patents

Patents

3 patents

US6897813B2May 24, 2005

Combined antenna with antenna combining circularly polarized wave antenna and vertical antenna

ALPS ELECTRIC CO LTD12 citations76

US6707426B2Mar 16, 2004

Compact, vibration-resistant circularly polarized wave antenna

ALPS ELECTRIC CO LTD2 citations58

US7679566B2Mar 16, 2010

Antenna structure having stable properties and headset

ALPS ELECTRIC CO LTD1 citations49