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71. 发明专利

JP3895166B2 How to create a computer-generated hologram 有权
公开(公告)号：JP3895166B2
公开(公告)日：2007-03-22
申请号：JP2001383339
申请日：2001-12-17
申请人：大日本印刷株式会社
发明人：満北村
IPC分类号： G03H1/08 , G11B7/0065
CPC分类号： G03H1/0841 , G03H1/028 , G03H1/0808 , G03H2001/0478 , G03H2001/085 , G03H2001/2242 , G03H2210/30 , G03H2210/32 , G03H2210/33 , G03H2210/36 , G03H2210/441 , G03H2210/452 , G03H2210/55 , G03H2210/56 , G03H2240/41 , G03H2240/62

72. 发明专利

JP3892537B2 Method of suppressing streak noise in the computer-generated hologram 失效
公开(公告)号：JP3892537B2
公开(公告)日：2007-03-14
申请号：JP18923097
申请日：1997-06-30
申请人：大日本印刷株式会社
发明人：満北村 , 智恒浜野
IPC分类号： G03H1/08 , G03H1/20

73. 发明专利

JP3810917B2 Computer-generated hologram, and how to create them 失效
公开(公告)号：JP3810917B2
公开(公告)日：2006-08-16
申请号：JP2260498
申请日：1998-01-20
申请人：大日本印刷株式会社
发明人：満北村 , 智恒浜野
IPC分类号： G03H1/08
CPC分类号： G03H1/0841 , G03H1/08 , G03H2210/30
摘要： PROBLEM TO BE SOLVED: To obtain a hyproduced image high in quality in the reproducing environment of indoor illumination while reducing arithmetic operation burdens. SOLUTION: Many unit line segments and rectangular area are defined with a prescribed pitch (h) on an original image and on a recording surface. To an (m)-th unit segment Am on the original image, an (m)-th rectangular area Cm on the recording surface corresponds. Many point light sources Pmi are defined on the unit line segment Am and interference fringes by object lights from respective point light sources and reference light Rϕ radiated from an oblique upper part are recorded in the rectangular area Cm . At the time of computing the interference fringes, the spread in the Y axis direction of the object lights from the respective point light sources is limited to a prescribed spreading angle ξ and the interference fringes considering only the object lights from the point light sources on the corresponding unit line segment Am are recorded inside the rectangular area Cm . The interference fringes are obtained for all the rectangular areas, an interference fringe pattern obtained on a recording surface 20 is binarized, the binary image is plotted on a medium by an electron beam plotting device and emboss hologram is prepared.

74. 发明专利

JP3708349B2 Computer-generated hologram, and how to create them 有权
公开(公告)号：JP3708349B2
公开(公告)日：2005-10-19
申请号：JP1587199
申请日：1999-01-25
申请人：大日本印刷株式会社
发明人：満北村 , 智恒浜野
IPC分类号： G11C13/04 , G03H1/08
CPC分类号： G03H1/0891 , G03H2001/0858 , G03H2240/41 , G03H2240/42

75. 发明专利

JPWO2016153063A1 離型シートおよび樹脂皮革有权
公开(公告)号：JPWO2016153063A1
公开(公告)日：2017-04-27
申请号：JP2016558815
申请日：2016-03-25
申请人：大日本印刷株式会社
发明人：豪千葉 , 豪千葉 , 北村　満 , 満北村
IPC分类号： B32B3/30 , B32B27/00
CPC分类号： B32B3/30 , B32B27/00 , D06N3/00
摘要：基材と、上記基材上に位置し、複数の単位画素転写部が配置されてなる単位画素転写部群を表面に備える離型層と、を有し、上記単位画素転写部内では、少なくとも5本以上のライン状の凹凸パターンが、一の方向に周期的に配置されており、上記単位画素転写部群内では、隣接する2つの上記単位画素転写部のうち、一方の上記単位画素転写部の凹凸パターンの長手方向と、他方の上記単位画素転写部の凹凸パターンの長手方向とが、交差関係にある離型シートを提供する。

76. 发明专利

JP5598613B2 Anti-counterfeit marker sheet and method of manufacturing the same, anti-counterfeiting feature imparting member, articles with anti-counterfeit function 有权
公开(公告)号：JP5598613B2
公开(公告)日：2014-10-01
申请号：JP2013544240
申请日：2012-11-09
申请人：大日本印刷株式会社
发明人：陽子関根 , 豪山内 , 満北村
IPC分类号： B42D25/378 , B42D25/445
CPC分类号： B42D25/41 , B41M3/14 , B42D25/21 , B42D25/29 , B42D25/42 , B42D2033/20 , B42D2035/34 , B42D2035/44 , C09J7/29 , C09J2203/338 , G03F7/20 , G03F7/2024
摘要： The purpose of the invention is to obtain an anti-counterfeiting marker sheet that is inexpensive and with which authenticity can be assessed easily. The invention uses an anti-counterfeiting marker sheet (1) characterized in being provided with a substrate (3), and multiple markers (5), which are formed directly on the substrate (3) and the contour shape of which can be recognized by magnified examination. It is preferable that: the markers are not unevenly distributed but are irregularly disposed on the substrate; there are multiple marker (5) colors; and there are multiple types of shapes for the marker (5) contour shapes. It is also preferable that the minimum radius of curvature of the corners of the shapes formed when the markers (5) are viewed in plan view is 250 nm to less than 10µm.

77. 发明专利

JP5505607B2 Holograms and security medium using the hologram 有权
公开(公告)号：JP5505607B2
公开(公告)日：2014-05-28
申请号：JP2009209671
申请日：2009-09-10
申请人：大日本印刷株式会社
发明人：盛久法元 , 徳博福山 , 康之大八木 , 満北村 , 幹雄石川 , 尚子中田
IPC分类号： G03H1/26 , B42D25/328 , B42D25/40 , G03H1/02
摘要： PROBLEM TO BE SOLVED: To provide a method for creating a hologram, for creating a hologram excellent in security property with high accuracy by an efficient method, and to provide a hologram excellent in security property and a security medium using the hologram. SOLUTION: The method for creating a hologram comprises recording a pattern based on an original image 10 on a hologram recording face by computing by use of a computer and creating a hologram 200 based on the pattern. The method includes steps of: recording a pattern based on the original image 10 in an original image region 1 on a hologram recording face 20; defining a near-field light region 101 on the hologram recording face 20; determining a pattern in the near-field light region 101; erasing a portion of the original image region 1 on the hologram recording face 20, the portion corresponding to the near-field light region 101, and overwriting the near-field light region 101 thereon so as to obtain the data of the original image region 1 and the near-field light region 101 on the hologram recording face 20; and drawing an image based on the data. COPYRIGHT: (C)2011,JPO&INPIT

78. 发明专利

JP5273358B2 Hologram creation method, hologram and security medium using the hologram 有权
公开(公告)号：JP5273358B2
公开(公告)日：2013-08-28
申请号：JP2008179310
申请日：2008-07-09
申请人：大日本印刷株式会社
发明人：満北村
IPC分类号： G03H1/08 , B42D15/10
CPC分类号： G03H1/08 , B42D15/0073 , B42D25/29 , B42D25/328 , B42D2035/24 , G03H1/00 , G03H1/0011 , G03H1/0891 , G03H1/2249 , G03H2001/2257 , G03H2210/30 , G03H2210/52 , G03H2210/55 , G03H2240/13
摘要： A method of preparing a hologram where an original image is recorded as interference fringes on a predetermined recording surface by arithmetic operations using a computer, the method including: a step of defining an original image formed as a three-dimensional image, a hologram recording plane for recording the original image, and reference light to be irradiated onto the hologram recording plane, a step of defining a large number of arithmetic operation points on the hologram recording plane and arithmetically determining the intensity of the interference wave formed by an object light beam emitted from each object and the reference light for each of the arithmetic operation points and a step of preparing physical interference fringes on a medium on the basis of the intensity distribution of interference wave obtained on the recording plane in the arithmetically determining step, the front-most part of the three-dimensional image being arranged near the hologram recording plane at the time of defining the original image.

79. 发明专利

JP5257640B2 Manufacturing method and computer-generated hologram that has been produced by the method of computer-generated hologram 有权
公开(公告)号：JP5257640B2
公开(公告)日：2013-08-07
申请号：JP2012166111
申请日：2012-07-26
申请人：大日本印刷株式会社
发明人：満北村
IPC分类号： G03H1/08
摘要： The invention provides a fabrication process for a computer-generated hologram 1 wherein amplitude information and phase information are recorded on a given recording surface by means of computation by a computer. The computer-generated hologram 1 is characterized by having a first direction X and a second direction Y orthogonal to the first direction X, and parallax in the first direction X alone. The hologram 1 comprises unit areas B1, B2, B3 to Bm to BM, each one having a given width in the second direction Y. In each unit area B1, B2, B3 to Bm to BM, there is a diffraction pattern having aspatial frequency Cm1, Cm2, Cm3 to Cmt to CmT that varies in the second direction.

80. 发明专利

JP5158328B2 Hologram photographing optical system 有权
公开(公告)号：JP5158328B2
公开(公告)日：2013-03-06
申请号：JP2007185459
申请日：2007-07-17
申请人：大日本印刷株式会社
发明人：誠子塩尻 , 壮周渡部 , 満北村
IPC分类号： G03H1/04 , G11B7/0065

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