Inventor

HIMORI TOORU

JP4 patents

Patents

4 patents

US6512833B2Jan 28, 2003

Electret condenser microphone and method of producing same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations70

US7031480B2Apr 18, 2006

Electret condenser microphone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations59

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