Patents by Inventor Hiroyuki Uemura

Hiroyuki Uemura 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: 5786435
    Abstract: The present invention relates to a low solvent content-type resin composition, a low solvent content-type coating composition containing such a resin composition as a binder, and a method for coating such a coating composition. The resin composition comprises an oligomer containing an alicyclic epoxy group in a molecule and having a number average molecular weight (Mn) of 300 to 2000, a weight average molecular weight (Mw) of 300 to 4000 and an Mw/Mn ratio of 1 to 2.5. The coating composition comprises such a resin composition and a cationic polymerization catalyst, wherein the content of an organic solvent content is 0 to 40 wt. %. Since the present composition contains a low molecular weight oligomer, the viscosity of the composition is low even though the solid content is high. Accordingly, the content of the organic solvent can be much reduced.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: July 28, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Yoshiaki Marutani, Tadamitsu Nakahama, Shinji Sasaki, Hiroyuki Uemura, Kazuhi Koga, Takashi Tomita, Mika Ohsawa
  • Patent number: 5726121
    Abstract: An image receiving sheet for sublimation transfer has a dye receiving layer formed on a substrate directly or through an intermediate layer. This dye receiving layer is mainly constructed by hardened resin. Further, a gel fraction of the dye receiving layer is equal to or greater than 70% by weight. In accordance with this construction, it is possible to improve a surface release property of the image receiving sheet used in combination with a thermally sublimating transfer recording medium. Further, when this image receiving sheet is applied to n-fold mode recording process, no image receiving sheet is stuck to a dye layer of recording medium.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 10, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Uemura, Chiharu Nogawa
  • Patent number: 5705567
    Abstract: There are disclosed a high solids content resin composition excellent in solubility in an organic solvent, comprising an acrylic oligomer having a blocked hydroxyl group, a curing agent having a reactivity with a hydroxyl group and a dissociation or curing catalyst, and a high solids content type paint using the resin composition. There are also disclosed a coating process and a baking process comprising coating and baking the resin composition or the paint while rotating a material to be coated at an appropriate speed. The resin composition and the paint of the present invention have substantially no sagging and solvent popping. Further, the thus obtained paint film have improved smoothness, solvent resistance, weather resistance and resistance to scratching.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: January 6, 1998
    Assignees: Dainippon Ink and Chemicals, Inc., Mazda Motor Corporation
    Inventors: Goro Iwamura, Shigeki Matsui, Ichiro Azuma, Yoshiaki Marutani, Hiroyuki Uemura, Shinji Sasaki, Kazuhi Koga
  • Patent number: 5686382
    Abstract: Thermal recording structure and a method of thermal recording wherein a desired sublimation dye image is formed on an information recording medium provided with a thermal recording layer having a sublimation dye accepting function on at least one surface of a base substrate. The transparency of the thermal recording layer is reversible depending upon temperature to which the medium is heated. At least the sublimation dye image portion of the medium is heated to a temperature sufficient to reverse the transparency of the transfer image.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: November 11, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Suzuki, Masaki Yoshino, Yoshihiko Hotta, Hiroyuki Uemura
  • Patent number: 5650475
    Abstract: The present invention relates to a low solvent content type-coating composition which provides the resultant coating with improved surface appearance, acid resistance, alkali resistance, weathering resistance, scuff resistance and solvent resistance, while the content of an organic solvent of the coating composition can be much reduced to 0 to 30% at 25.degree. C. The low solvent content type-coating composition comprises a vinyl oligomer having a blocked carboxyl group and an additional group selected from an epoxy group, a silanol group, a hydrolyzable silyl group and an acid anhydride group. The vinyl oligomer has a number average molecular weight (Mn) of 600 to 2000, a weight average molecular weight (Mw) of 600 to 5000, and a ratio of a weight average molecular weight/a number average molecular weight (Mw/Mn) of 1.0 to 2.5. The blocked carboxyl group and an additional group may be present in the same or different vinyl oligomers.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 22, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Yoshiaki Marutani, Tadamitsu Nakahama, Takashi Tomita, Hiroyuki Uemura, Kazuhi Koga, Mika Ohsawa, Goro Iwamura
  • Patent number: 5597774
    Abstract: An image receiving sheet for sublimation transfer has a dye receiving layer formed on a substrate directly or through an intermediate layer. This dye receiving layer is mainly constructed by hardened resin. Further, a gel fraction of the dye receiving layer is equal to or greater than 70% by weight. In accordance with this construction, it is possible to improve a surface release property of the image receiving sheet used in combination with a thermally sublimating transfer recording medium. Further, when this image receiving sheet is applied to n-fold mode recording process, no image receiving sheet is stuck to a dye layer of the recording medium.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: January 28, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Uemura, Chiharu Nogawa
  • Patent number: 5565404
    Abstract: A sublimation-type thermal image transfer recording medium is composed of a support, a dye-containing layer formed on the support, containing a sublimable dye, and a top layer formed on the dye-containing layer, containing a hydrolyzed product of a silane coupling agent. This sublimation-type thermal image transfer recording medium may be composed of a support, at least two dye-containing layers formed on the support, containing a sublimable dye and an organic binder agent in which the sublimable dye is dispersed, and a top layer formed on at least the two dye-containing layers, containing a hydrolyzed product of a silane coupling agent.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 15, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidehiro Mochizuki, Yutaka Ariga, Hiroki Kuboyama, Hiroyuki Uemura, Chiharu Nogawa
  • Patent number: 5547915
    Abstract: An information recording medium is composed of a support; a thermosensitive recording layer provided at least on one side of the support, the thermosensitive recording layer being composed of a matrix resin and an organic low-molecular-weight material which is dispersed in the matrix resin, the transparency of the thermosensitive recording layer being reversibly changeable depending upon the temperature thereof; and a thermal transfer image receiving layer for thermal printing thereon by thermal transfer recording, which is provided at least on one side of the support, opposite to the thermosensitive recording layer. A printing method using the above information recording medium is also provided.The thermosensitive recording layer and the thermal transfer image receiving layer may be replaced by a single sublimable material receiving reversible thermosensitive recording layer which have the two functions of the thermosensitive recording layer and the thermal transfer image receiving layer.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: August 20, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Suzuki, Yoshihiko Hotta, Hiroyuki Uemura
  • Patent number: 5525573
    Abstract: An image receiving sheet for sublimation-type thermal image recording includes substrate; and a dye receiving layer which is formed on the substrate directly or through an intermediate layer, the dye receiving layer including a dyeable cured resin and having a gel percentage of 70 wt. % or more. A sublimation-type thermal image transfer recording method for recording images by use of this image receiving sheet and a sublimation-type thermal image transfer recording medium is disclosed.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: June 11, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Uemura, Chiharu Nogawa, Hidehiro Mochizuki, Hiroki Kuboyama, Yutaka Ariga
  • Patent number: 5472931
    Abstract: An image receiving medium for use in a sublimation-type thermal image transfer recording system, comprising a substrate, and a dye receiving layer formed thereon, comprising (a) a resin which can be dyed with a heat-sublimable dye, such as a copolymer of vinyl chloride and vinyl acetate, (b) a first silicone oil which is compatible with the resin, such as polyether-modified silicone oil, and (c) a second silicone oil which is not compatible with the resin, such as amino-modified silicone oil.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: December 5, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoya Morohoshi, Hiroyuki Uemura, Hidehiro Mochizuki, Masaru Shimada
  • Patent number: 5468711
    Abstract: An information recording medium is composed of a support; a thermosensitive recording layer provided at least on one side of the support, the thermosensitive recording layer being composed of a matrix resin and an organic low-molecular-weight material which is dispersed in the matrix resin, the transparency of the thermosensitive recording layer being reversibly changeable depending upon the temperature thereof; and a thermal transfer image receiving layer for thermal printing thereon by thermal transfer recording, which is provided at least on one side of the support, opposite to the thermosensitive recording layer. A printing method using the above information recording medium is also provided.The thermosensitive recording layer and the thermal transfer image receiving layer may be replaced by a single sublimable material receiving reversible thermosensitive recording layer which have the two functions of the thermosensitive recording layer and the thermal transfer image receiving layer.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: November 21, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Suzuki, Yoshihiko Hotta, Hiroyuki Uemura
  • Patent number: 5376619
    Abstract: A sublimation-type thermal color image transfer recording medium for transferring images onto an image receiving sheet by moving the sublimation-type thermal color image transfer recording medium with a speed of 1/n (n>1) relative to the image receiving sheet with a speed of 1 is composed of at least one support, and an ink layer formed on the support. The ink layer includes at least one dye-supply layer formed on the support, which is composed of a resin binder agent and one sublimable dye dispersed therein, such as a yellow sublimable dye, a magenta sublimable dye, and a cyan sublimable dye; and a dye-transfer-contribution layer formed on the dye-supply layer, which is composed of a resin binder agent and a sublimable dye with substantially the same color as that of the sublimable dye in the dye-supply layer, wherein the total of the sublimable dye contained in the dye-supply layer and that in the dye-transfer contribution layer, M g/m.sup.2, and the value of M.multidot.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: December 27, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidehiro Mochizuki, Hiroyuki Uemura, Yutaka Ariga
  • Patent number: 5348931
    Abstract: A sublimation-type thermal image transfer recording medium is composed of a support, a dye-containing layer formed on the support, containing a sublimable dye, and a top layer formed on the dye-containing layer, containing a hydrolyzed product of a silane coupling agent. This sublimation-type thermal image transfer recording medium may be composed of a support at least to dye-containing layers formed on the support, containing a sublimable dye and an organic binder agent in which the sublimable dye is dispersed, and a top layer formed on at least the two dye-containing layers, containing a sublimable product of a silane coupling agent.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: September 20, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidehiro Mochizuki, Yutaka Ariga, Hiroki Kuboyama, Hiroyuki Uemura, Chiharu Nogawa
  • Patent number: 5314861
    Abstract: A sublimation type thermal image transfer image receiving medium is composed of a substrate and a dye receiving layer formed thereon, and the substrate is composed of a first laminated sheet on which the dye receiving layer is provided and a second laminated sheet, with an elastic adhesive layer or a plastic adhesive layer being interposed between the first laminated sheet and the second laminated sheet.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: May 24, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoya Morohoshi, Hiroyuki Uemura, Chiharu Nogawa
  • Patent number: 5302575
    Abstract: An image receiving medium for use in combination with a sublimation type thermal image transfer recording medium with a sublimation-type dye containing image transfer layer is composed of a substrate including a sheet made of a fibrous material and a polymeric material in the form of partcles or a porous resin, the polymeric material or the porous resin being located in the interstices within the fibrous material; and a dye receiving layer formed the substrate.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: April 12, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Chiharu Nogawa, Naoya Morohoshi, Hiroyuki Uemura, Hidehiro Mochizuki, Hiroki Kuboyama, Yutaka Ariga
  • Patent number: 5286706
    Abstract: A sublimation-type thermal image transfer recording medium is composed of a support and a plurality of ink layers, such as yellow, magenta and cyan ink layers, and a black ink layer if necessary, formed on the support side by side, or on different separate supports, each ink layer containing an organic binder agent and a sublimable dye dispersed in the organic binder agent, with the gram-absorptivity coefficient of the sublimable dye being 150,000 or more.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: February 15, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidehiro Mochizuki, Masaru Shimada, Naoya Morohoshi, Hiroyuki Uemura, Chiharu Nogawa, Yutaka Ariga
  • Patent number: 5144334
    Abstract: A thermosensitive recording method comprising the steps of superimposing a sublimation-type thermosensitive image transfer recording medium on an image receiving sheet, and applying heat imagewise to the recording medium while moving the recording medium and the image receiving sheet in such a manner that the running speed of the image receiving sheet is greater than that of the recording medium. The recording medium for use with the above method comprises an ink layer containing a sublimable dye and one or more organic binder agents in which the sublimable dye is dispersed in the form of granules.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: September 1, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Suzuki, Hidehiro Mochizuki, Masaru Shimada, Hiroyuki Uemura, Naoya Morohoshi
  • Patent number: 5106816
    Abstract: An image receiving medium for use in a sublimation-type image transfer recording system is composed of a support, an intermediate layer containing an isocyanate compound, and a dye-receiving layer containing an active-hydrogen-containing resin, an isocyanate compound and a polyether-modified silicone, which layers are overlaid in this order on the substrate.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: April 21, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoya Morohoshi, Hiroyuki Uemura, Hidehiro Mochizuki, Masaru Shimada, Chiharu Nogawa, Yutaka Ariga
  • Patent number: 5102692
    Abstract: A method for repairing a high solid metallic coating on car bodies which involves applying at the area to be repaired an undercoat composition based on the same coating composition as used in the baked high solid metallic coating and with specified amounts of melamine resin and isocyanate compound added, the melamine resin having imino and methylol groups and the sum of the imino groups and methylol groups per triazine ring being 2.3 to 3.3, applying onto the undercoat a two-package urethane clear top coat composition on a wet-on-wet basis and finally drying the coats at 80.degree. C. or less.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: April 7, 1992
    Assignees: Nippon Paint Co., Ltd., Mazda Motor Corporation
    Inventors: Hajime Tanigami, Kazuhiko Kobayashi, Yoshio Tanimoto, Tadamitsu Nakahama, Hiroyuki Uemura
  • Patent number: 5049538
    Abstract: A sublimation type thermosensitive image transfer recording medium and a thermosensitive recording method using the sublimation type thermosensitive image transfer recording medium are disclosed, which comprises a support, an ink layer formed on the support, comprising (a) a dye supplying layer formed on the support, comprising a sublimable dye and at least one binder agent in which the sublimable dye is dispersed in the form of undissolved granules, and (b) an image transfer facilitating layer formed on the dye supplying layer, comprising the sublimable dye and at least one organic binder agent in which the sublimable dye is dissolved, in which the dye supplying layer and the image transfer facilitating layer are constructed in such a manner that (i) the concentration of the sublimation dye in the dye supplying layer is greater than that of the sublimable dye in the image transfer facilitating layer or (ii) the diffusion coefficient of said sublimable dye in the dye supplying layer is greater than that of th
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: September 17, 1991
    Assignee: Ricoh Company, Ltd.
    Inventors: Hidehiro Mochizuki, Akira Suzuki, Masaru Shimada, Hiroyuki Uemura