US Patent No: 5,700,550

Number of patents in Portfolio can not be more than 2000

Transparent hologram seal

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A hologram forming layer, transparent evaporated layer, colored layer, adhesion anchor layer, and adhesive layer are sequentially laminated on the under surface of a base member. The laminated body is used as a seal by the presence of the adhesive layer. It is preferable for the base member to have adequate rigidity (flexibility, tensile strength) and surface flatness. The hologram forming layer has a relief type hologram image. The transparent evaporated layer is a multi-layered ceramic layer constructed by alternately laminating high-refractive index layers and low-refractive index layers and the thickness thereof is preferably set to 1 .mu.m or less. In the transparent evaporated layer, the color of visible light in predetermined wavelength range is changed according to the viewing angle when it is transmitted therethrough or reflected therefrom.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOPPAN PRINTING CO., LTD.TOKYO503

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Takahiro Nikaho, JP 56 349
Hoshino, Kazuhisa Chiba, JP 4 94
Kano, Mitsuru Fukushima-ken, JP 74 674
Kitamura, Satoshi Sakai, JP 93 321
Matsudaira, Nagahisa Kasukabe, JP 5 93
Noguchi, Fuminobu Kumamoto, JP 2 38
Shikakubo, Tsutomu Shiki, JP 3 43
Uyama, Haruo Tokyo, JP 2 38

Cited Art

Patent Info (Count) # Cites Year
 
NATIONAL RESEARCH COUNCIL OF CANADA (2)
4,626,445 Method of manufacturing an optical interference authenticating device 14 1985
5,009,486 Form depicting, optical interference authenticating device 61 1989
 
ALCAN INTERNATIONAL LIMITED (1)
5,149,386 Tamper-evident structures 23 1990
 
FLEX PRODUCTS, INC. (1)
4,705,356 Thin film optical variable article having substantial color shift with angle and method 113 1984
 
LEONHARD KURZ GMBH & CO. (1)
5,383,687 Value document and embossing foil for the production thereof 92 1993
 
MINOLTA CAMERA KABUSHIKI KAISHA (1)
5,140,464 Interference film filter for copying machine 11 1989
 
NIPPONDENSO CO., LTD. (1)
5,313,317 Hologram 42 1992
 
OVD KINEGRAM AG (1)
5,104,471 Interlaminar sandwich with diffraction structure 22 1990
 
SANWA BANK CALIFORNIA (1)
5,276,537 Diamondlike carbon thin film protected hologram and method of making same 17 1992

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
JDS UNIPHASE CORPORATION (26)
6,761,959 Diffractive surfaces with color shifting backgrounds 28 1999
6,692,830 Diffractive pigment flakes and compositions 30 2001
6,749,936 Achromatic multilayer diffractive pigments and foils 23 2001
6,841,238 Chromatic diffractive pigments and foils 30 2002
7,006,204 Automated verification systems and methods for use with optical interference devices 6 2002
6,749,777 Diffractive pigment flakes and compositions 28 2002
6,987,590 Patterned reflective optical structures 26 2003
7,005,178 Security articles having diffractive surfaces and color shifting backgrounds 6 2003
7,754,112 Methods for forming security articles having diffractive surfaces and color shifting backgrounds 0 2003
7,029,745 Security articles having diffractive surfaces and color shifting backgrounds 4 2003
7,224,528 Optically variable security devices 8 2005
7,184,133 Automated verification systems and method for use with optical interference devices 8 2005
7,645,510 Provision of frames or borders around opaque flakes for covert security applications 0 2005
7,667,895 Patterned structures with optically variable effects 1 2005
8,343,615 Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures 0 2006
7,674,501 Two-step method of coating an article for security printing by application of electric or magnetic field 1 2006
7,630,109 Covert security coating 0 2006
7,625,632 Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom 3 2006
7,876,481 Patterned optical structures with enhanced security feature 0 2006
7,729,026 Security device with metameric features using diffractive pigment flakes 0 2006
7,934,451 Apparatus for orienting magnetic flakes 1 2007
8,164,810 Security devices incorporating optically variable adhesive 1 2007
8,118,963 Stamping a coating of cured field aligned special effect flakes and image formed thereby 0 2007
7,550,197 Non-toxic flakes for authentication of pharmaceutical articles 1 2007
7,880,943 Patterned optical structures with enhanced security feature 0 2007
8,025,952 Printed magnetic ink overt security image 1 2007
 
DAI NIPPON PRINTING CO., LTD. (2)
7,085,024 Hologram laminate and hologram label 4 2002
7,268,926 Hologram laminate and hologram label 0 2006
 
DE LA RUE INTERNATIONAL LIMITED (1)
7,054,042 Optically variable security device 12 2001
 
EBSCO INDUSTRIES, INC. (1)
6,018,902 Iridescent coating for fishing lure 9 1997
 
HEWLETT-PACKARD INDIGO B.V. (1)
6,977,101 Foil printing 1 2003
 
IMATION CORP. (1)
6,221,545 Adhesives for preparing a multilayer laminate featuring an ink-bearing surface bonded to a second surface 11 1999
 
LG DISPLAY CO., LTD. (1)
7,807,082 Apparatus for fabricating flat panel display device and method for fabricating thereof 0 2006
 
ROBERT BOSCH GMBH (1)
6,273,432 Sealing element for sensors 10 1998
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
5,988,503 Anti-counterfeit card and method for manufacturing the card 18 1997