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: 5646089
    Abstract: The present invention relates to a heat transfer cover film characterized in that a specific transparent resin layer (2) is releasably provided on a substrate film (1). This transparent resin layer (2) can be easily laminated on the surface of the resulting image (7Y, 7M and 7C) by heat transfer means, making it possible to provide expeditious provision of image representations which are improved in terms of such properties as durability, gloss and color development and is curl-free.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 8, 1997
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
  • Patent number: 5610119
    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: December 19, 1995
    Date of Patent: March 11, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi, Kazunobu Imoto, Hidetake Takahara, Jitsuhiko Ando
  • Patent number: 5593939
    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: July 27, 1994
    Date of Patent: January 14, 1997
    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: 5589434
    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: March 7, 1995
    Date of Patent: December 31, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hidetake Takahara, Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi
  • Patent number: 5575507
    Abstract: The present invention relates to a heat transfer recording medium in which a substrate has items of information such as an image and characters formed on a surface thereof by heat transfer and a transparent protective layer is provided on at least a part of the surface of the thus recorded information through an adhesive layer, if required, characterized in that the adhesive layer and/or protective layer function to provide security against counterfeiting. Combining information recorded by heat transfer with a function to provide security against counterfeiting, the present invention provides greater security against falsifying or counterfeiting.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: November 19, 1996
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Mineo Yamauchi, Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii, Hideo Fujimura, Tamami Iwata
  • Patent number: 5563110
    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 said cell-containing layer contains a cell and/or a foaming agent capable of increasing the thickness of the transferable resin layer by a factor of 1.1 to 4 upon being heated; and 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 a cell and/or a foaming agent capable of increasing the thickness of the transferable resin layer by a factor of 1.1 to 4 upon being heated.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: October 8, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mikio Asajima, Takeshi Ueno, Katsuyuki Oshima, Hidetake Takahara, Mineo Yamauchi
  • Patent number: 5538831
    Abstract: There is provided a thermal transfer film comprising: a substrate film; a sublimable dye layer region comprised of at least one color layer; and a hot-melt ink layer region, the sublimable dye layer region and the hot-melt ink layer region being provided in parallel to each other on the substrate film,the hot-melt ink layer region comprising at least a release layer, a release protective layer, and a hot-melt ink layer laminated in that order on the substrate film,the hot-melt ink layer region being broader than one color layer in the sublimable dye layer region.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 23, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Katsuyuki Oshima, Mikiko Kudo
  • Patent number: 5527759
    Abstract: The present invention relates to a heat transfer cover film characterized in that a specific transparent resin layer (2) is releasably provided on a substrate film (1). This transparent resin layer (2) can be easily laminated on the surface of the resulting image (7Y, 7M and 7C) by heat transfer means, making it possible to provide expeditious provision of image representations which are improved in terms of such properties as durability, gloss and color development and is curl-free.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: June 18, 1996
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
  • Patent number: 5496072
    Abstract: The present invention relates to a heat transfer recording medium in which a substrate has items of information such as an image and characters formed on the surface thereof by heat transfer and a transparent protective layer is provided on at least a part of the surface of the thus recorded information through an adhesive layer, if required, characterized in that the adhesive layer and/or protective layer function to provide security against counterfeiting. Combining information recorded by heat transfer with a function to provide security against counterfeiting, the present invention provides greater security against falsifying or counterfeiting.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: March 5, 1996
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Mineo Yamauchi, Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii, Hideo Fujimura, Tamami Iwata
  • Patent number: 5494885
    Abstract: A protective layer transfer film comprising a substrate film, and a thermally-transferable resin layer provided thereon, which comprises a resin combined with a reactive ultraviolet-absorbing agent by reaction.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: February 27, 1996
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mikiko Kudo, Katsuyuki Oshima, Hitoshi Saito
  • Patent number: 5468714
    Abstract: A heat transfer sheet having improved releasability includes a substrate film and a dye layer system formed on the substrate film. The dye layer system is composed of a dye allowed to migrate and transfer thermally onto an image-receiving sheet and a binder, wherein the dye layer system comprises two layers, only the outer surface layer of which contains a slip agent and/or a releasant.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: November 21, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Masaki Kutsukake, Hideaki Sato, Kenichiro Sudo
  • Patent number: 5432145
    Abstract: A protective layer transfer sheet, including a heat-resistant layer provided on one surface of a substrate film, and an adhesive layer, a releasable protective layer, and a heat seal layer laminated in this order on the other surface of the substrate film.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: July 11, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Hideo Fujimura, Jitsuhiko Ando
  • Patent number: 5430004
    Abstract: This invention relates to a heat transfer sheet including a substrate film and a dye layer formed on the surface of the substrate film, the dye layer containing a dye and a binder resin and, if required, a release agent. The binder resin and/or release agent include a graft copolymer containing at least releasable segment selected from polysiloxane, carbon fluoride and long-chain alkyl segments grafted onto its major chain. According to this invention, there is provided a heat transfer sheet which enables an image of high density to be made at high speeds with neither adhesion between the dye layer and the dye-receiving layer nor peeling-off of the dye layer at the time of heat transfer and can produce an image on the surface of which a transparent film can be laminated.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: July 4, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Hideo Fujimura, Minoru Furuse
  • Patent number: 5427997
    Abstract: The present invention relates to a heat transfer cover film characterized in that a specific transparent resin layer (2) is releasably provided on a substrate film (1). This transparent resin layer (2) can be easily laminated on the surface of the resulting image (7Y, 7M and 7C) by heat transfer means, making it possible to provide expeditious provision of image representations which are improved in terms of such properties as durability, gloss and color development and is curl-free.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: June 27, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Katsuyuki Oshima, Jitsuhiko Ando, Masanori Torii
  • Patent number: 5424267
    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 6, 1993
    Date of Patent: June 13, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hidetake Takahara, Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi
  • Patent number: 5418207
    Abstract: A thermal transfer image-receiving sheet including a substrate and a resin layer formed on one surface of the substrate. The resin layer includes at least a dye receiving layer and a heat foamable foaming agent having a volumetric hollowness of 50% or more in a foamed state. The resin layer has a hollowness ranging from 10 to 90% in a foamed state.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 23, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Mikio Asajima, Takeshi Ueno, Katsuyuki Oshima, Hidetake Takahara, Mineo Yamauchi
  • Patent number: 5405823
    Abstract: The present invention relates to a thermosensitive recording material used in combination with a heat transfer sheet carried thereon with a thermally transferable dye, which is characterized in that it comprises a substrate 1 and a dye-receiving layer 2 provided on at least one surface of the substrate 1, the dye-receiving layer 2 being obtained by crosslinking and curing a resin having a crosslinkable reaction group with an additive having a crosslinkable reaction group.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: April 11, 1995
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Hideo Fujimura, Haruo Takeuchi, Katsuyuki Oshima
  • Patent number: 5392059
    Abstract: An image forming method using a thermal transfer, wherein a dye-receptive layer on a transfer film is transferred to a print sheet and then dye layers on a dye transfer film are superposed on the dye-receptive layer and subjected to an image forming operation of a thermal head so that an image is transferred to the dye-receptive layer. In order to transfer the dye-receptive layer to the print sheet uniformly to enable subsequent formation of an excellent dye image, the quantity of thermal energy being applied by the thermal head to the transfer film is decreased with elapse of time. This principle can also be used for transferring a protective layer to the print sheet on which a dye image has been formed.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: February 21, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takeshi Ueno, Katsuyuki Oshima, Hidetake Takahara, Jitsuhiko Ando, Mineo Yamauchi
  • Patent number: 5369079
    Abstract: A heat transfer recording material such as a heat transfer image-receiving sheet including a dye-receiving layer formed on the surface of a substrate film or a heat transfer sheet including a dye layer having of a dye and a binder and formed on the surface of a substrate film. By containing a specific silane coupling agent in or on the dye-receiving layer or dye layer, this recording material can give a heat-transferred image which has excellent resistance to fingerprints and oils, such as plasticizers, and is of high density and resolution.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: November 29, 1994
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Youichi Higuchi, Katsuyuki Oshima, Mineo Yamauchi
  • Patent number: 5318943
    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: May 22, 1992
    Date of Patent: June 7, 1994
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takeshi Ueno, Katsuyuki Oshima, Mikio Asajima, Mineo Yamauchi, Kazunobu Imoto, Hidetake Takahara, Jitsuhiko Ando