Patents by Inventor Katsuyuki Oshima

Katsuyuki Oshima 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).

  • Patent number: 6245429
    Abstract: A protect layer transfer sheet of the present invention comprises a substrate, an untransferable release layer and a thermally transferable protect layer, the protect layer being disposed on at least one area of a surface of the substrate by the medium of the release layer. The untransferable release layer comprises at least a cross-linking resin having a chemical structure comprises at least a side chain A and a side chain B on a principle chain formed of a carbon chain, and cross-linking at least a part of the side chain A and the side chain B. Therefore, the adhesive strength between the substrate and the untransferable release layer can always be stronger than the adhesive strength between the untransferable release layer and the thermally transferable protect layer.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: June 12, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Jiro Onishi, Katsuyuki Oshima
  • Patent number: 6232267
    Abstract: A thermal transfer sheet is comprises a substrate sheet, a dye layer of at least one color, a white layer to cover an image-receiving portion of a receiving material after an image is formed therein, and if necessary, a transferable receptor layer to be transferred to the image-receiving portion of the receiving material before the formation of the image, those layers being alternately disposed side by side on a surface of the substrate sheet, wherein said white layer being capable of adhering to the image-receiving portion already provided with the image and being disposed on the substrate sheet via a peeling layer interposed therebetween. The white layer has a white screenability to provide excellent light diffusivity and light transmissivity for a background of the printed image. The white layer may be formed by applying a coating liquid containing an adhesive binder resin and a white pigment or a coating liquid containing a binder resin, an adhesive, and a white pigment on the peeling layer.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: May 15, 2001
    Assignee: DAI Nippon Printing Co., Ltd.
    Inventors: Katsuyuki Oshima, Satoru Kawai, Hideki Usuki
  • Patent number: 6224964
    Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: May 1, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Suto, Katsuyuki Oshima
  • Patent number: 6214149
    Abstract: A thermal transfer sheet of the present invention is used in order to previously form an image in a receptor layer of the intermediate transfer recording medium before the receptor layer is re-transferred to a transfer receiving material, and it comprises: a substrate film, a peelable layer disposed on the substrate film, and a heat fusible black ink layer disposed on the substrate film via the peelable layer, wherein the peelable layer is formed of a material having peelable property to the substrate film while having adhesive property to the transfer receiving material so that the peelable layer is transferred to the receptor layer of the intermediate transfer recording medium together with the heat fusible black ink layer when the image is formed in the receptor layer so as to constitute an uppermost layer of the receptor layer, the uppermost layer being adhesive to the transfer receiving material.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: April 10, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshinori Nakano, Mikiko Narita, Katsuyuki Oshima
  • Patent number: 6162517
    Abstract: The present invention provides a thermal transfer image-receiving sheet comprises (1) an adhesive sheet portion 1 comprising a support 2, a dye receptor layer 3 disposed on a front surface of the support and an adhesive layer 4 disposed on a back surface of the support and (2) a release sheet 5 temporarily bonded to the adhesive layer so as to be peelable therefrom. The support 2 is a layered product comprising a foamed resin film layer 6 disposed on a dye receptor layer side thereof and a non-foamed resin film layer 7 disposed on an adhesive layer side thereof. In the adhesive sheet portion 1, it is preferable to form a cut line 9 which is provided with at least one uncut portion.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: December 19, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Katsuyuki Oshima, Atsushi Tatehana, Koichi Shirai, Mineo Yamauchi, Kazunobu Imoto
  • Patent number: 6153558
    Abstract: A thermal transfer image-receiving sheet for a sticker comprises a sticker portion and a release sheet portion, the sticker portion being comprising a substrate, a receptor layer disposed on a front surface side of the substrate and an adhesive layer disposed on a back surface side of the substrate, the release sheet portion being comprising a support sheet and a grip layer disposed on a back surface side of the support sheet, and an adhesive area of a back surface of the sticker portion being covered with the release sheet in a peelable adhesion with a front surface of the release sheet portion facing to the back surface of the sticker portion, wherein said grip layer is a non-oriented synthetic resin layer having a softening point of 110.degree. C. or more. The grip layer is well bitten by spikes of a grip roller of a printer to prevent misregistering. The grip layer is preferably formed by extrusion lamination.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: November 28, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Koichi Shirai, Atsushi Tatehana, Katsuyuki Oshima
  • Patent number: 6114027
    Abstract: A protect layer transfer sheet of the present invention comprises a substrate, an untransferable release layer and a thermally transferable protect layer, the protect layer being disposed on at least one area of a surface of the substrate by the medium of the release layer. The release layer contains at least one substance selected from the group consisting of inorganic particles having a mean particle size of 40 nm or less, alkyl vinyl ether--maleic anhydride copolymer, derivatives of the alkyl vinyl ether--maleic anhydride copolymer and ionomer. According to the present invention, it is possible that a protect layer is surely and constantly transferred on an image formed in a printed product at all times. Furthermore it is also possible to make the thermally transferable protect layer a single-ply structure by omitting an adhesive layer. The single-ply structure of the protect layer has an improved transparency, thus increasing the highest density of a highly quality image covered with the protect layer.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: September 5, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Jiro Onishi, Katsuyuki Oshima, Hideki Usuki
  • Patent number: 6071596
    Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: June 6, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Suto, Katsuyuki Oshima
  • Patent number: 6040269
    Abstract: A thermal transfer sheet includes a support and, provided thereon, at least a yellow dye-holding layer, a magenta dye-holding layer, and a cyan dye-holding layer, the dye-holding layers each including a thermal transfer dye and a binder resin, the yellow dye-holding layer includes as the thermal transfer dye, a dye represented by the following formula 1 and/or a dye represented by the following formula 2, the magenta dye-holding layer includes as the thermal transfer dye, a dye represented by the following formula 3 and at least one dye selected from those represented by the following formulae 4 and 5; and the cyan dye-holding layer includes as the thermal transfer dye, a dye represented by the following formula 6: ##STR1##
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: March 21, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kazunobu Imoto, Katsuyuki Oshima, Hideki Nishikawa
  • Patent number: 6001771
    Abstract: A receptor layer transfer sheet, as intermediate transfer medium film, provided with a receptor layer to be transferred on a surface of a transfer-receiving material with an image preliminarily formed on the receptor layer comprises: a substrate film; an ionizing radiation (electron beam) hardening resin layer formed on the substrate film to be separable; and a receptor layer formed on the ionizing radiation hardening resin layer. The receptor layer is transferred together with the ionizing radiation hardening resin layer to the transfer-receiving material at a transferring process. A card-shaped printed product can be manufactured by using the receptor layer transfer sheet of the character mentioned above, in which an image is formed, through a sublimation thermal transfer process, on a receptor layer of a receptor layer transfer sheet. The receptor layer is transferred together with the ionizing radiation hardening resin layer on a card-shaped transfer-receiving material through a thermal transfer process.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: December 14, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yoshinori Nakano, Mikiko Narita, Katsuyuki Oshima
  • Patent number: 5977022
    Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: November 2, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Suto, Katsuyuki Oshima
  • Patent number: 5932053
    Abstract: A process for producing a thermal transfer image-receiving sheet, wherein the transferable resin layer of a receiving layer transfer sheet is transferred to a substrate sheet.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 3, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mikio Asajima, Takeshi Ueno, Katsuyuki Oshima, Hidetake Takahara, Mineo Yamauchi
  • Patent number: 5928989
    Abstract: In order to enable stamping or writing with an aqueous ink on a print with a colorant image or the like formed thereon and, at the same time, to impart fastness properties, such as weather resistance, chemical resistance, and solvent resistance to the print, there are provided a thermal transfer film for a protective layer, which, upon transfer on a print, can form a protective layer having a water-absorptive property and the above fastness, and a print with a protective layer transferred from the above transfer film.The thermal transfer film for a protective layer basically comprises a heat-resistant substrate film and a thermally transferable protective layer laminated thereto. The thermally transferable protective layer is thermally separated from the substrate and laminated on a print with a colorant image.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: July 27, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Jiro Ohnishi, Katsuyuki Oshima, Mikiko Kudo, Atsushi Tatehana
  • Patent number: 5885927
    Abstract: There is provided a receptor layer transfer sheet which is capable of providing images of high quality on a transfer receiving material having an unsmooth surface, even when it is used in combination with a conventional thermal transfer material.There is also provided a thermal transfer sheet which is capable of providing images of high quality on a transfer receiving material having an unsmooth surface.There is further provided a thermal transfer method and a thermal transfer apparatus which are capable of providing images of high quality and do not require a special detection mark provided in (or on) a thermal transfer sheet to be used in combination therewith.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: March 23, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hidetake Takahara, Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi
  • Patent number: 5837648
    Abstract: A thermal transfer sheet is provided which can thermally transfer an excellent image capable of maintaining various types of durability, various types of fastness, particularly weather resistance and the like for a long period of time. The thermal transfer sheet comprises: a substrate film; a sublimable black dye layer and a transferable protective layer provided on the substrate film in a face serial manner, the sublimable black dye layer comprising a mixture of particular yellow, magenta, and cyan dyes. A thermal transfer method using such a thermal transfer sheet is also disclosed.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: November 17, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Atsushi Tatehana, Jiro Onishi, Katsuyuki Oshima
  • Patent number: 5763356
    Abstract: Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the substrate sheet is a pulp paper, the intermediate layer is formed from an organic solvent solution of a resin, and the dye receptor layer is formed from an aqueous resin liquid. By virtue of this structure, the thermal transfer image receiving sheet can be prevented from occurrence of curling caused by temperature change. Also disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the intermediate layer is formed from either an acrylic resin or a resin at least a part of which is crosslinked.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: June 9, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi, Kazunobu Imoto, Hidetaki Takahara, Jitsuhiko Ando
  • Patent number: 5741754
    Abstract: A method for forming an image on an object, including the steps of:thermally transferring a dye from a thermal transfer sheet to the dye-receptive layer of a thermal transfer image-receiving sheet thereby to form a dye image on the sheet;contacting the dye-receptive layer side of the thermal transfer image-receiving sheet with an object;thermally transferring the dye image on the thermal transfer image-receiving sheet to the object by heating of the sheet; andpeeling the sheet from the object.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 21, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kazunobu Imoto, Katsuyuki Oshima, Hideki Nishikawa
  • Patent number: 5728645
    Abstract: A heat transfer sheet comprising a polyester film substrate sheet, an adhesive layer formed on one surface of the substrate sheet by applying the adhesive layer to the substrate sheet and biaxially stretching both the layer and the sheet simultaneously, and at least two heat transfer layers formed on said adhesive layer, a first layer comprising a thermally migratable dye and an untransferable binder, and second layer comprising a dyed or pigmented, heat-meltable binder.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: March 17, 1998
    Assignee: Dai Nippon Insatsu K.K.
    Inventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
  • Patent number: 5726122
    Abstract: A thermal transfer image receiving sheet includes substrate sheet and a dye receptor layer disposed on at least one surface side of the substrate sheet, wherein the dye receptor layer has been formed on the substrate sheet by superposing the substrate sheet onto a receptor layer transfer film comprising a substrate film and the dye receptor layer disposed on one surface side thereof which is peelable from the substrate film, so that the receptor layer transfer film is bonded to the substrate sheet to form a laminate, and peeling the substrate film from the laminate.The thermal transfer sheet also includes a substrate film, an intermediate layer disposed on the substrate film, and a dye layer disposed on the substrate film by the medium of the intermediate layer, wherein the dye layer comprises a dye and a binder resin, and at least one of the intermediate layer and the dye layer contains bubbles.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: March 10, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hitoshi Saito, Kazunobu Imoto, Takeshi Ueno, Katsuyuki Oshima, Mineo Yamauchi, Hiroshi Eguchi, Hideaki Sato, Hideo Fujimura, Mikio Asajima
  • Patent number: 5710098
    Abstract: A receiving layer transfer sheet comprising a substrate sheet and a transferable resin layer provided on one surface of the substrate sheet, wherein said transferable resin layer comprises a dye-receiving layer and a cell-containing layer and the cell-containing layer contains at least two foaming agents different from each other in the foaming temperature; a thermal transfer image-receiving sheet comprising a substrate sheet and a resin layer provided on one surface of the substrate sheet, wherein said resin layer comprises a dye-receiving layer and a cell-containing layer and said cell-containing layer contains at least two foaming agents different from each other in the foaming temperature; and a process for producing the thermal transfer image-receiving sheet.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: January 20, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mikio Asajima, Takeshi Ueno, Katsuyuki Oshima, Hidetake Takahara, Mineo Yamauchi