Inventor

KAIWA TAKESHI

JP3 patents

Patents

3 patents

US6804366B2Oct 12, 2004

Speaker apparatus

PIONEER CORP8 citations71

US6754362B2Jun 22, 2004

Speaker and speaker system

PIONEER CORP4 citations61

US7433486B2Oct 7, 2008

Speaker and manufacturing method for the same

PIONEER CORP5 citations60