Inventor
IIYAMA KEIICHI
JP5 patents
Patents
5 patentsUS6489883B1Dec 3, 2002
Non-contact data carrier system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD107 citations95
US6215272B1Apr 10, 2001
Fuel cell device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD67 citations95
US5949826ASep 7, 1999
Data transmission and reception system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations89
US6772953B2Aug 10, 2004
Contactless data carrier
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations71
US6894885B2May 17, 2005
Reader/writer and analog switching circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60