Patents by Inventor Tadahiro Ishida
Tadahiro Ishida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130142969Abstract: A thermal transfer sheet comprising: a substrate; a heat resistant slip layer provided on one side of the substrate; an undercoat layer and a dye layer provided in that order on the other side of the substrate, wherein the undercoat layer is formed by using colloidal inorganic pigment ultrafine particles and a copolymer resin of vinyl pyrrolidone and vinyl acetate as main components.Type: ApplicationFiled: November 29, 2012Publication date: June 6, 2013Inventors: Hiroyuki YAMASHITA, Tadahiro ISHIDA, Keiji HIROSE, Hirotaka WATANABE, Toshikazu KUWABARA, Daisuke FUKUI, Hideo ITO
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Patent number: 8450241Abstract: A film transfer sheet including a sheet substrate provided with a layer via a resin layer and a peelable transparent sheet provided with an adhesive layer. The sheet substrate and the peelable transparent sheet are laminated together such that the layer is overlapped on the peelable transparent sheet and peeling is designed to occur between the layer and the peelable transparent sheet so as to transfer the peelable transparent sheet provided with the adhesive layer to a transfer-receiving member. The resin layer includes as an essential component a pressure-sensitive adhesive having a storage elastic modulus of 3.0 ×105 Pa to 1.2 ×106 Pa at a temperature of 130° C. to 150° C. Also provided is an intermediate transfer recording medium including a sheet substrate provided with a layer via resin layer and a peelable transparent sheet provided with a dye receptive layer, in which the sheet substrate and the peelable transparent sheet are laminated together.Type: GrantFiled: September 16, 2008Date of Patent: May 28, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventor: Tadahiro Ishida
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Patent number: 8343889Abstract: It is an object of the present invention to provide a thermal transfer sheet which has a high transfer sensitivity in thermal transfer printing to obtain a high density print, has a high sharpness of thermal transfer images, can prevent an abnormal transfer in printing even after being stored at high temperature and high humidity, and can provide a sufficiently satisfactory printed matter.Type: GrantFiled: December 8, 2006Date of Patent: January 1, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroyuki Yamashita, Tadahiro Ishida, Keiji Hirose, Hirotaka Watanabe, Toshikazu Kuwabara, Daisuke Fukui, Hideo Ito
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Patent number: 7934752Abstract: An image forming method is provided to attain a higher security for preventing forgery and falsification of information by using an optical diffraction structure. In a body (10) whereupon a layer is to be transferred, printing information (2) is recorded. On the body (10), a layer (20d) including a hologram and a diffraction lattice provided on an optical diffraction structure transfer sheet (20) is transferred, and an image including recorded printing information (2) and optical diffraction structures (3, 4, 5) is formed. The layer (20d) including the optical diffraction structure is transferred so that the diffraction lattice (5) to be transferred forms diffraction lattice information (5) showing a prescribed regularity in a corresponding relationship between the printing information (2).Type: GrantFiled: March 8, 2004Date of Patent: May 3, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Norikazu Saito, Fumihiko Mizukami, Makoto Aoyagi, Tetsuya Matsuyama, Hiroshi Funada, Tadahiro Ishida
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Patent number: 7824515Abstract: This invention provides a method for image formation, which can produce a thermally transferred image possessing excellent heat resistance and various fastness properties even under severe service conditions, and an intermediate transfer recording medium and an image formed object.Type: GrantFiled: March 28, 2006Date of Patent: November 2, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventor: Tadahiro Ishida
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Patent number: 7563545Abstract: It is an object of the invention is to provide a hologram transfer sheet comprising: at least, a peelable layer; a relief formation layer having a relief; and a metal thin layer, which are sequentially formed on a substrate, capable of preventing a crack or discoloration of the metal thin layer which may be caused by heat or stress when a transfer layer is aligned with and transferred onto a transfer receiving body or preventing a disfigurement of the external appearance which may be caused by a crack mark of the metal thin layer following the thermal deformation of the substrate when performing an entire surface transfer by means of a heat roller. Such a hologram transfer sheet (1) comprising: at least, a peelable layer (3); a relief formation layer (4) having a relief; and a metal thin layer (5), which are sequentially formed on a substrate (2), is characterized in that the peelable layer (3) is made of a norbornene-based resin having a chemical structure containing a norbornene structure at least.Type: GrantFiled: June 3, 2004Date of Patent: July 21, 2009Assignee: Dai Nippon Printing Co., Ltd.Inventor: Tadahiro Ishida
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Publication number: 20090130348Abstract: It is an object of the present invention to provide a thermal transfer sheet which has a high transfer sensitivity in thermal transfer printing to obtain a high density print, has a high sharpness of thermal transfer images, can prevent an abnormal transfer in printing even after being stored at high temperature and high humidity, and can provide a sufficiently satisfactory printed matter.Type: ApplicationFiled: December 8, 2006Publication date: May 21, 2009Inventors: Hiroyuki Yamashita, Tadahiro Ishida, Keiji Hirose, Hirotaka Watanabe, Toshikazu Kuwabara, Daisuke Fukui, Hideo Ito
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Publication number: 20090081389Abstract: A film transfer sheet including a sheet substrate provided with a peelable layer via a resin layer and a transparent sheet provided with an adhesive layer. The sheet substrate and the transparent sheet are laminated together such that the peelable layer is overlapped on the transparent sheet and peeling is designed to occur between the peelable layer and the transparent sheet so as to transfer the transparent sheet provided with the adhesive layer to a transfer-receiving member. The resin layer includes as an essential component a pressure-sensitive adhesive having a storage elastic modulus of 3.0×105 Pa to 1.2×106 Pa at a temperature of 130° C. to 150° C. Also provided is an intermediate transfer recording medium including a sheet substrate provided with a peelable layer via resin layer and a transparent sheet provided with a dye receptive layer, in which the sheet substrate and the transparent sheet are laminated together.Type: ApplicationFiled: September 16, 2008Publication date: March 26, 2009Inventor: Tadahiro Ishida
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Publication number: 20080312077Abstract: The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and an intermediate transfer recording medium for use in the method for image formation. The method for image formation comprises the steps of: providing an intermediate transfer recording medium comprising a substrate film and a transfer portion provided separably on the substrate film; forming an image on the intermediate transfer recording medium in its transfer portion; transferring the transfer portion onto an object; and, thereafter, again transferring the intermediate transfer recording medium in its next transfer portion once or more onto the object with the image formed thereon. In this case, in the intermediate transfer recording medium, a hologram image is set every at least second image plane, and an image can be formed on the transfer portion having the hologram image.Type: ApplicationFiled: August 8, 2008Publication date: December 18, 2008Applicant: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Publication number: 20080240787Abstract: An image forming method is provided to attain a higher security for preventing forgery and falsification of information by using an optical diffraction structure. In a body (10) whereupon a layer is to be transferred, printing information (2) is recorded. On the body (10), a layer (20d) including a hologram and a diffraction lattice provided on an optical diffraction structure transfer sheet (20) is transferred, and an image including recorded printing structures (3, 4, 5) is formed. The layer (20d) including the optical diffraction structure is transferred so that the diffraction lattice (5) to be transferred forms diffraction lattice information (5) showing a prescribed regularity in a corresponding relationship between the printing information (2).Type: ApplicationFiled: March 8, 2004Publication date: October 2, 2008Inventors: Norikazu Saito, Fumihiko Mizukami, Makoto Aoyagi, Tetsuya Matsuyama, Hiroshi Funada, Tadahiro Ishida
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Publication number: 20080070125Abstract: Disclosed is an intermediate transfer recording medium for use in a method which comprises the steps of: forming an image using the intermediate transfer recording medium on an object; and forming a protective layer on the image. In this case, fastness properties can be fully imparted to the image, the protective layer can be transferred onto the image with high accuracy in a simple manner, blocking and the like attributable to the exposure of a pressure-sensitive adhesive do not take place, and the design and the fastness properties are excellent. An image forming method using the intermediate transfer recording medium is also disclosed.Type: ApplicationFiled: November 5, 2007Publication date: March 20, 2008Applicant: Dai Nippon Printing Co., Ltd.Inventors: Tatsuya KITA, Hitoshi Saito, Katsuyuki Oshima, Shinji Kometani, Masayasu Yamazaki, Kouzou Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Publication number: 20060240202Abstract: This invention provides a method for image formation, which can produce a thermally transferred image possessing excellent heat resistance and various fastness properties even under severe service conditions, and an intermediate transfer recording medium and an image formed object.Type: ApplicationFiled: March 28, 2006Publication date: October 26, 2006Applicant: Dai Nippon Printing Co., Ltd.Inventor: Tadahiro Ishida
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Publication number: 20060127623Abstract: It is an object of the invention is to provide a hologram transfer sheet comprising: at least, a peelable layer; a relief formation layer having a relief; and a metal thin layer, which are sequentially formed on a substrate, capable of preventing a crack or discoloration of the metal thin layer which may be caused by heat or stress when a transfer layer is aligned with and transferred onto a transfer receiving body or preventing a disfigurement of the external appearance which may be caused by a crack mark of the metal thin layer following the thermal deformation of the substrate when performing an entire surface transfer by means of a heat roller. Such a hologram transfer sheet (1) comprising: at least, a peelable layer (3); a relief formation layer (4) having a relief; and a metal thin layer (5), which are sequentially formed on a substrate (2), is characterized in that the peelable layer (3) is made of a norbornene-based resin having a chemical structure containing a norbornene structure at least.Type: ApplicationFiled: June 3, 2004Publication date: June 15, 2006Inventor: Tadahiro Ishida
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Patent number: 7033974Abstract: A thermal transfer sheet is provided that can yield thermally transferred images, which possess excellent various fastness or resistance properties even under severe service conditions, and comprises a transferable protective layer having good transferability. In a thermal transfer sheet comprising a substrate sheet and a thermally transferable protective layer on the substrate sheet, the thermally transferable protective layer comprises a scratch-resistant layer which is repeatedly provided one by one for each picture plane unit in the thermal transfer sheet. An area of the scratch-resistant layer for each picture plane unit is smaller than an area of an object in its transfer surface. By virtue of this construction, at the time of the transfer of a protective layer onto an object, layer cutting does not occur within the scratch-resistant layer but within other layer (such as peel layer or adhesive layer), and, consequently, the protective layer can be transferred with good transferability.Type: GrantFiled: May 19, 2004Date of Patent: April 25, 2006Assignee: Dai Nippon Printing, Co., Ltd.Inventors: Tadahiro Ishida, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Etsuo Takasaki
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Patent number: 6994765Abstract: The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and an intermediate transfer recording medium for use in the method for image formation. The method for image formation comprises the steps of: providing an intermediate transfer recording medium comprising a substrate film and a transfer portion provided separably on the substrate film; forming an image on the intermediate transfer recording medium in its transfer portion; transferring the transfer portion onto an object; and, thereafter, again transferring the intermediate transfer recording medium in its next transfer portion once or more onto the object with the image formed thereon. In this case, in the intermediate transfer recording medium, a hologram image is set every at least second image plane, and an image can be formed on the transfer portion having the hologram image.Type: GrantFiled: January 28, 2004Date of Patent: February 7, 2006Assignee: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Publication number: 20060024455Abstract: The present invention provides a method for image formation, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, and an intermediate transfer recording medium for use in the method for image formation. The method for image formation comprises the steps of: providing an intermediate transfer recording medium comprising a substrate film and a transfer portion provided separably on the substrate film; forming an image on the intermediate transfer recording medium in its transfer portion; transferring the transfer portion onto an object; and, thereafter, again transferring the intermediate transfer recording medium in its next transfer portion once or more onto the object with the image formed thereon. In this case, in the intermediate transfer recording medium, a hologram image is set every at least second image plane, and an image can be formed on the transfer portion having the hologram image.Type: ApplicationFiled: September 28, 2005Publication date: February 2, 2006Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Patent number: 6940534Abstract: The present invention relates to an intermediate transfer recording medium, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, can transfer a protective layer on an image with good accuracy in a simple manner, and can provide an object with an image formed thereon which is highly difficult to be altered or forged, a process for producing the same, and a method for image formation. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer, said transparent sheet provided with the receptive layer having been stacked on the sheet substrate provided with the resin layer, the transparent sheet portion including the receptive layer having been half cut, a hologram formation layer being stacked on the transparent sheet, the resin layer being separable from the transparent sheet.Type: GrantFiled: March 14, 2002Date of Patent: September 6, 2005Assignee: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Patent number: 6909444Abstract: The invention provides a transfer ribbon having a layered structure in which a substrate, a relief layer and a reflection layer are laminated in this order, wherein the relief layer comprises an ionizing radiation-cured resin. The transfer ribbon can precisely transfer fine dots and/and dots placed close to each other with a low energy and at a high speed without any of burrs, chippings or lacks by means of a thermal head. Also, the invention provides an image expressing medium, which can be produced using the transfer ribbon described above, and comprises a support, a color layer and plural dots of relief hologram and/or diffraction grating. In the medium: the color layer and the dots are disposed on the same surface of the support; and the each dot has an area in a range from 0.0001 to 0.09 mm2; the each dots has a diffraction direction different from that of at least one of adjacent dots, or the dot has two or more sections each of which has a diffraction direction different from each other.Type: GrantFiled: September 9, 2003Date of Patent: June 21, 2005Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tadahiro Ishida, Fumihiko Mizukami
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Publication number: 20040223044Abstract: The present invention relates to an intermediate transfer recording medium, that can yield thermally transferred images which are excellent in various fastness properties even under severe service conditions, can transfer a protective layer on an image with good accuracy in a simple manner, and can provide an object with an image formed thereon which is highly difficult to be altered or forged, a process for producing the same, and a method for image formation. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer, said transparent sheet provided with the receptive layer having been stacked on the sheet substrate provided with the resin layer, the transparent sheet portion including the receptive layer having been half cut, a hologram formation layer being stacked on the transparent sheet, the resin layer being separable from the transparent sheet.Type: ApplicationFiled: March 14, 2002Publication date: November 11, 2004Applicant: Dai Nippon Printing Co., Ltd.Inventors: Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Tadahiro Ishida, Etsuo Takasaki
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Patent number: 6815397Abstract: A thermal transfer sheet is provided that can yield thermally transferred images, which possess excellent various fastness or resistance properties even under severe service conditions, and comprises a transferable protective layer having good transferability. In a thermal transfer sheet comprising a substrate sheet and a thermally transferable protective layer on the substrate sheet, the thermally transferable protective layer comprises a scratch-resistant layer which is repeatedly provided one by one for each picture plane unit in the thermal transfer sheet. An area of the scratch-resistant layer for each picture plane unit is smaller than an area of an object in its transfer surface. By virtue of this construction, at the time of the transfer of a protective layer onto an object, layer cutting does not occur within the scratch-resistant layer but within other layer (such as peel layer or adhesive layer), and, consequently, the protective layer can be transferred with good transferability.Type: GrantFiled: June 7, 2002Date of Patent: November 9, 2004Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tadahiro Ishida, Katsuyuki Oshima, Kozo Odamura, Takayuki Imai, Etsuo Takasaki