Inventor
KOYAMA TAKAO
JP29 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI PENCIL CO
11 patentsUS5977211ANov 2, 1999
Ball point pen filled with erasable ink
MITSUBISHI PENCIL CO34 citations92
US6409408B2Jun 25, 2002
Writing instrument
MITSUBISHI PENCIL CO15 citations84
US7405865B2Jul 29, 2008
Liquid for electrophoretic display, display medium and display device using the same
MITSUBISHI PENCIL CO17 citations83
US7600938B2Oct 13, 2009
Refill for correction pen and refill unit
MITSUBISHI PENCIL CO13 citations82
US5716434AFeb 10, 1998
Non-erasable pencil lead
MITSUBISHI PENCIL CO12 citations74
US4863649ASep 5, 1989
Process for producing carbon heat generator
MITSUBISHI PENCIL CO9 citations73
US6517273B2Feb 11, 2003
Free-ink type writing instrument
MITSUBISHI PENCIL CO12 citations71
US5178908AJan 12, 1993
Process for coating carbonized material with metal
MITSUBISHI PENCIL CO5 citations63
US5944438AAug 31, 1999
Writing instrument
MITSUBISHI PENCIL CO5 citations62
US7063475B2Jun 20, 2006
Ink-storing body for writing utensil
MITSUBISHI PENCIL CO2 citations61
US6443649B1Sep 3, 2002
Free-ink type writing instrument
MITSUBISHI PENCIL CO0 citations49
KAO CORP
7 patentsUS6706030B1Mar 16, 2004
Absorbent article
KAO CORP86 citations97
US6514382B1Feb 4, 2003
Process for producing bulky paper
KAO CORP99 citations96
US7094227B2Aug 22, 2006
Disposable diaper having leg flap absorbent articles
KAO CORP32 citations92
US7520874B2Apr 21, 2009
Disposable diaper with improved leak prevention properties
KAO CORP19 citations83
US7156830B2Jan 2, 2007
Disposable diaper including lateral side cores
KAO CORP12 citations83
US7938814B2May 10, 2011
Disposable diaper
KAO CORP15 citations82
US6878139B2Apr 12, 2005
Disposable diaper including lateral side cores
KAO CORP6 citations73
NISSAN MOTOR
7 patentsUS6401899B1Jun 11, 2002
Parking lock device and method for automatic transmission
NISSAN MOTOR47 citations92
US4949821AAug 21, 1990
Automatic transmission
NISSAN MOTOR23 citations92
US4974715ADec 4, 1990
Oil passages of torque converter
NISSAN MOTOR21 citations82
US7811187B2Oct 12, 2010
Continuously variable transmission
NISSAN MOTOR6 citations63
US6623393B2Sep 23, 2003
Drive belt for continuously variable transmission
NISSAN MOTOR3 citations63
US5755565AMay 26, 1998
Rotary pump having reinforcing wall in a passage
NISSAN MOTOR3 citations54
US4916899AApr 17, 1990
Stator shaft connection through oil pump of automatic transmission
NISSAN MOTOR1 citations52