Inventor
IWATA RITSUO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “IWATA RITSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
13 patentsUS5422170AJun 6, 1995
Wood based panels
YAMAHA CORP158 citations97
US6376582B1Apr 23, 2002
Wood fiberboard and manufacturing method therefor
YAMAHA CORP52 citations94
US5736218AApr 7, 1998
Wood board and a flooring material made therefrom
YAMAHA CORP45 citations94
US5554429ASep 10, 1996
Wood board and flooring material
YAMAHA CORP97 citations94
US5506026AApr 9, 1996
Wood board and a flooring material made therefrom
YAMAHA CORP56 citations94
US5705001AJan 6, 1998
Method of manufacturing wood based panels
YAMAHA CORP26 citations91
US6632326B1Oct 14, 2003
Modifying method for wood elements
YAMAHA CORP42 citations89
US4911969AMar 27, 1990
Decorative sheet and method of manufacturing the same
YAMAHA CORP38 citations89
US6129871AOct 10, 2000
Manufacturing method for a wood board
YAMAHA CORP46 citations87
US6723766B1Apr 20, 2004
Method for manufacturing ligneous material
YAMAHA CORP15 citations84
US4963214AOct 16, 1990
Method for producing a wooden decorative article
YAMAHA CORP14 citations71
US5058777AOct 22, 1991
Automatic method and apparatus for scattering wood pieces in production of a decorative board
YAMAHA CORP9 citations68
US7074844B2Jul 11, 2006
Adhesives
YAMAHA CORP4 citations61