Inventor
TAKEUCHI ITSUO
JP32 patents
⚠️ This page may combine multiple inventors who share the name “TAKEUCHI ITSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NHK SPRING CO LTD
20 patentsUS5602381AFeb 11, 1997
Objects to be checked for authenticity, and method and apparatus for checking whether or not objects are authentic
NHK SPRING CO LTD158 citations98
US5300764AApr 5, 1994
Transparent optical identification label with infrared directivity
NHK SPRING CO LTD132 citations98
US5451759ASep 19, 1995
Using high-permeability magnetic elements randomly scattered in the objects
NHK SPRING CO LTD68 citations96
US6301047B1Oct 9, 2001
System for optically identifying an object
NHK SPRING CO LTD75 citations95
US6061122AMay 9, 2000
Optical identification system using cholesteric liquid crystals
NHK SPRING CO LTD86 citations95
US5497227AMar 5, 1996
System for determining the authenticity of an object
NHK SPRING CO LTD131 citations95
US5756220AMay 26, 1998
Object to be checked for authenticity and a method for manufacturing the same
NHK SPRING CO LTD73 citations94
US5601931AFeb 11, 1997
Object to be checked for authenticity and a method for manufacturing the same
NHK SPRING CO LTD68 citations94
US7201821B2Apr 10, 2007
Identifying medium and identifying method for object
NHK SPRING CO LTD21 citations92
US6740431B2May 25, 2004
Medium for identifying matter to be identified and method for production thereof
NHK SPRING CO LTD20 citations92
US5473147ADec 5, 1995
Method and an apparatus for checking objects to be checked for authenticity
NHK SPRING CO LTD31 citations92
US7391546B2Jun 24, 2008
Discrimination medium and discrimination method using the same
NHK SPRING CO LTD14 citations84
US7388627B2Jun 17, 2008
Discrimination medium and article to be discriminated
NHK SPRING CO LTD8 citations70
US7879415B2Feb 1, 2011
Discrimination medium and discrimination method therefor
NHK SPRING CO LTD5 citations63
US7590239B2Sep 15, 2009
Object identifying medium using multi-layer thin-film
NHK SPRING CO LTD2 citations62
US5707753AJan 13, 1998
Pulse generating element and a method and an apparatus for manufacturing the same
NHK SPRING CO LTD5 citations62
US7943392B2May 17, 2011
Discrimination medium, discrimination method, article to be discriminated, and discrimination apparatus
NHK SPRING CO LTD5 citations60
US9643444B2May 9, 2017
Identification medium
NHK SPRING CO LTD0 citations51
US7812937B2Oct 12, 2010
Identification medium, article, identification device, and method of identifying identification medium
NHK SPRING CO LTD1 citations50
US9688090B2Jun 27, 2017
Identification medium
NHK SPRING CO LTD0 citations34
HOSHINO HIDEKAZU
7 patentsUS8915437B2Dec 23, 2014
Identification medium, method for reading data therefrom, apparatus for identification, and method and apparatus for production thereof
HOSHINO HIDEKAZU12 citations83
US8970953B2Mar 3, 2015
Identification medium and identification method therefor
HOSHINO HIDEKAZU3 citations61
US8168080B2May 1, 2012
Identifying medium, identifying medium manufacturing method, article, and identifying medium identifying method
HOSHINO HIDEKAZU3 citations60
US8322753B2Dec 4, 2012
Identification medium, identification method, and identification apparatus
HOSHINO HIDEKAZU3 citations59
US9298036B2Mar 29, 2016
Identification medium
HOSHINO HIDEKAZU2 citations58
US8652592B2Feb 18, 2014
Discrimination medium and discrimination method for discriminating the same
HOSHINO HIDEKAZU1 citations52
US8279394B2Oct 2, 2012
Discrimination medium comprising a liquid crystal layer acting as a half-wave plate wherein a gradation of gradual or continuous color changes are displayed according to an area
HOSHINO HIDEKAZU0 citations48