Inventor

IWASE YASUYUKI

JP5 patents

Patents

5 patents

USD313245SDec 25, 1990

Marking pen

MITSUBISHI PENCIL CO50 citations93

US5957609ASep 28, 1999

Applicator

MITSUBISHI PENCIL CO20 citations79

US4789261ADec 6, 1988

Liquid aerosol applicator with sponge buffer to brush

MITSUBISHI PENCIL CO23 citations72

US4833751AMay 30, 1989

Fixing member for retaining liquid-application member of liquid applicator such as writing instrument, cosmetic instrument and the like

MITSUBISHI PENCIL CO7 citations71

US5067838ANov 26, 1991

Valve unit for writing instruments or liquid applicators

MITSUBISHI PENCIL CO3 citations59