Inventor
FUKUMURA TOYOSHI
JP11 patents
Patents
11 patentsUS6661391B2Dec 9, 2003
Antenna and radio device comprising the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD190 citations98
US6909422B2Jun 21, 2005
Track ball device and electronic apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6646211B2Nov 11, 2003
Switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US6504269B1Jan 7, 2003
Input device and electronic appliance using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations92
US7274354B2Sep 25, 2007
Portable electronic apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations83
US6634090B2Oct 21, 2003
Method of production of series of a tactile contact units and tactile contact unit, and series of tactile contact units and a tactile contact unit produced by using the same method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations72
US4013845AMar 22, 1977
Temperature compensating reproducing system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations71
US6245397B1Jun 12, 2001
Marking method and marked molding
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations70
US7158119B2Jan 2, 2007
Track ball device and electronic apparatus using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US3936619AFeb 3, 1976
Four-channel stereophonic reproducing system for reproducing discrete CD-4 four-channel stereo disc
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations60
US3931482AJan 6, 1976
Four-channel stereophonic reproducing system for reproducing discrete four-channel stereophonic discs
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60