Inventor

SUGANUMA YUICHIRO

JP5 patents

Patents

5 patents

US4881258ANov 14, 1989

Portable type mobile radio telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD58 citations91

US4670633AJun 2, 1987

Keyboard assembly with lighting

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD51 citations91

US6914982B2Jul 5, 2005

Folding portable cellular phone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations90

US6428924B1Aug 6, 2002

Battery storage structure for portable electronic device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations90

US4609790ASep 2, 1986

Locking apparatus for telephone

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations71