Inventor
UEKI TOMIJI
JP11 patents
Patents
11 patentsUS5480249AJan 2, 1996
Lead dispensing storage container
KOTOBUKI & CO LTD24 citations91
US5971644AOct 26, 1999
Side knock-type writing instrument
KOTOBUKI & CO LTD19 citations84
US5702193ADec 30, 1997
Side knock type mechanical pencil
KOTOBUKI & CO LTD14 citations82
US6224282B1May 1, 2001
Side knock-type ball point pen
KOTOBUKI & CO LTD7 citations72
US5788118AAug 4, 1998
Lead dispensing storage container
KOTOBUKI & CO LTD7 citations72
US6210058B1Apr 3, 2001
Side knock type mechanical pencil
KOTOBUKI & CO LTD2 citations62
US6099182AAug 8, 2000
Side knock-type mechanical pencil
KOTOBUKI & CO LTD2 citations62
US5836707ANov 17, 1998
Side knock type mechanical pencil
KOTOBUKI & CO LTD1 citations62
US5791797AAug 11, 1998
Side knock type mechanical pencil
KOTOBUKI & CO LTD3 citations62
US5720643AFeb 24, 1998
Lead dispensing storage container
KOTOBUKI & CO LTD2 citations61
US5846009ADec 8, 1998
Writing tool
KOTOBUKI & CO LTD1 citations51