Inventor

KAJIHARA KAZUHIKO

JP3 patents

Patents

3 patents

US5210792AMay 11, 1993

Ear-hang type headset

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD192 citations93

US7062052B2Jun 13, 2006

Electret condenser microphone and method of producing same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations57

US7233675B2Jun 19, 2007

Method of forming an electret condenser microphone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations46