Inventor
OSADA TAKAHIRO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “OSADA TAKAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI PENCIL CO
18 patentsUS5993098ANov 30, 1999
Aqueous gel ink-filled ball point pen
MITSUBISHI PENCIL CO57 citations96
US6478495B2Nov 12, 2002
Capless writing instrument
MITSUBISHI PENCIL CO24 citations91
US6474893B1Nov 5, 2002
Writing instrument having excellent cap-off performance
MITSUBISHI PENCIL CO20 citations91
US7405865B2Jul 29, 2008
Liquid for electrophoretic display, display medium and display device using the same
MITSUBISHI PENCIL CO17 citations83
US6004388ADec 21, 1999
Non-aqueous ink for ball point pen, and ball point pen
MITSUBISHI PENCIL CO10 citations73
US5868511AFeb 9, 1999
Non-aqueous ink for ball point pen and ball point pen
MITSUBISHI PENCIL CO8 citations73
US6761496B2Jul 13, 2004
Writing utensil
MITSUBISHI PENCIL CO6 citations72
US5182324AJan 26, 1993
Alcoholic marking ink composition
MITSUBISHI PENCIL CO10 citations71
US6734233B2May 11, 2004
Solid adhesive composition
MITSUBISHI PENCIL CO7 citations69
US7883815B2Feb 8, 2011
Fuel-storing tank for fuel cell
MITSUBISHI PENCIL CO2 citations62
US7771890B2Aug 10, 2010
Method of preventing leak of liquid fuel
MITSUBISHI PENCIL CO3 citations62
US7615305B2Nov 10, 2009
Fuel reservoir for fuel cell
MITSUBISHI PENCIL CO5 citations62
US7579096B2Aug 25, 2009
Fuel reservoir for fuel cell
MITSUBISHI PENCIL CO3 citations62
US7556877B2Jul 7, 2009
Direct methanol fuel cell
MITSUBISHI PENCIL CO5 citations62
US7001094B2Feb 21, 2006
Writing utensil having excellent cap-off performance
MITSUBISHI PENCIL CO5 citations59
US7625656B2Dec 1, 2009
Direct methanol fuel cell
MITSUBISHI PENCIL CO0 citations51
US7837404B2Nov 23, 2010
Applicator
MITSUBISHI PENCIL CO1 citations50
US6955491B2Oct 18, 2005
Marking pen with excellent cap-off performance
MITSUBISHI PENCIL CO1 citations48