Patents by Inventor Shigeru Miyajima

Shigeru Miyajima 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: 7635507
    Abstract: A receiving paper for thermal transfer recording, having a paper substrate; an ink receiving layer located overlying one side of the paper substrate and configured to receive a heat-melted or heat-softened ink; and a tackifying layer located overlying another side of the substrate, wherein the ink receiving layer is formed by coating an ink receiving layer forming liquid including a resin emulsion overlying the paper substrate; and heating the coating of ink layer forming liquid to a temperature not less than a minimum filming temperature of the resin emulsion.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: December 22, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshifumi Noge, Shigeru Miyajima
  • Patent number: 7479470
    Abstract: The objects of the present invention are to provide a thermal transfer receiver adapted to form transferred images excellent in solvent resistance and superior in wear resistance, a method for producing the thermal transfer receiver, a method for recording an image, and a recorded image. The objects may be attained by the thermal transfer receiver which comprises a support and a receiving layer disposed on the support, and the receiving layer contains a polyethyleneimine derivative, a thermoplastic resin, and a crosslinker.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: January 20, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsunori Hiroishi, Shigeru Miyajima
  • Patent number: 7087276
    Abstract: A thermal transfer recording medium include a support; and a heat-sensitive transfer layer on the support, and wherein the heat-sensitive transfer layer includes: a resin made from monomer which includes a glycidyl ester of an unsaturated carboxylic acid; and sulfonamide. The present invention also provides a thermal transfer recording method including transferring an image from the thermal transfer recording medium to an image receiving member.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 8, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Sasaki, Shigeru Miyajima, Yoshiaki Yamada
  • Patent number: 7034856
    Abstract: A receiving cloth for thermal transfer recording, including at least a substrate formed of a woven or nonwoven fabric, having opposed sides; an ink receiving layer on one side of the substrate, which receives a heat-melted or softened ink; and a tackifying layer on the other side of the substrate, wherein the ink receiving layer includes at least a hollow particulate material including a gaseous body therein; and a thermoplastic material, and wherein the ink receiving layer has an island/sea structure in which the hollow particulate material is present as an island in a sea of the thermoplastic material. In addition, a thermal printing method using the receiving cloth is also provided.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: April 25, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeru Miyajima, Yoshifumi Noge
  • Publication number: 20060046003
    Abstract: The objects of the present invention are to provide a thermal transfer receiver adapted to form transferred images excellent in solvent resistance and superior in wear resistance, a method for producing the thermal transfer receiver, a method for recording an image, and a recorded image. The objects may be attained by the thermal transfer receiver which comprises a support and a receiving layer disposed on the support, and the receiving layer contains a polyethyleneimine derivative, a thermoplastic resin, and a crosslinker.
    Type: Application
    Filed: August 3, 2005
    Publication date: March 2, 2006
    Inventors: Katsunori Hiroishi, Shigeru Miyajima
  • Publication number: 20050209102
    Abstract: A thermal transfer recording medium include a support; and a heat-sensitive transfer layer on the support, and wherein the heat-sensitive transfer layer includes: a resin made from monomer which includes a glycidyl ester of an unsaturated carboxylic acid; and sulfonamide. The present invention also provides a thermal transfer recording method including transferring an image from the thermal transfer recording medium to an image receiving member.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 22, 2005
    Inventors: Takayuki Sasaki, Shigeru Miyajima, Yoshiaki Yamada
  • Publication number: 20040063579
    Abstract: A receiving paper for thermal transfer recording, having a paper substrate; an ink receiving layer located overlying one side of the paper substrate and configured to receive a heat-melted or heat-softened ink; and a tackifying layer located overlying another side of the substrate, wherein the ink receiving layer is formed by coating an ink receiving layer forming liquid including a resin emulsion overlying the paper substrate; and heating the coating of ink layer forming liquid to a temperature not less than a minimum filming temperature of the resin emulsion.
    Type: Application
    Filed: August 5, 2003
    Publication date: April 1, 2004
    Inventors: Yoshifumi Noge, Shigeru Miyajima
  • Publication number: 20030133004
    Abstract: A receiving cloth for thermal transfer recording, including at least a substrate formed of a woven or nonwoven fabric, having opposed sides; an ink receiving layer on one side of the substrate, which receives a heat-melted or softened ink; and a tackifying layer on the other side of the substrate, wherein the ink receiving layer includes at least a hollow particulate material including a gaseous body therein; and a thermoplastic material, and wherein the ink receiving layer has an island/sea structure in which the hollow particulate material is present as an island in a sea of the thermoplastic material. In addition, a thermal printing method using the receiving cloth is also provided.
    Type: Application
    Filed: December 3, 2002
    Publication date: July 17, 2003
    Inventors: Shigeru Miyajima, Yoshifumi Noge
  • Patent number: 6117562
    Abstract: A thermal image transfer recording sodium includes a support and a thermal image transfer ink layer formed on the support. The thermal image transfer ink layer contains a coloring agent, a resin with a melting point of 120.degree. C. or more and an SP value of 10.5 to 12.5, and a melt viscosity lowering material for lowering the melt viscosity of the resin, with the compatibility of the resin and the malt viscosity lowering material, measured by a transparency measurement method, being 0.20 or less, or with the melt viscosity at 150.degree. C. of the thermal image transfer ink layer being in the range of 1.times.10.sup.2 to 5.times.10.sup.6 poise.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: September 12, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Junko Yamaguchi, Mitsuru Maeda, Tetsuji Kunitake, Kazuyoshi Inamura, Yasumitsu Kuga, Shigeru Miyajima, Tadafumi Tatewaki, Yoshiaki Yamada
  • Patent number: 5716477
    Abstract: A thermal image transfer recording medium includes a support and a thermal image transfer ink layer formed on the support. The thermal image transfer ink layer contains a coloring agent, a resin with a melting point of 120.degree. C. or more and an SP value of 10.5 to 12.5, and a melt viscosity lowering material for lowering the melt viscosity of the resin, with the compatibility of the resin and the melt viscosity lowering material, measured by a transparency measurement method, being 0.20 or less, or with the melt viscosity at 150.degree. C. of the thermal image transfer ink layer being in the range of 1.times.10.sup.2 to 5.times.10.sup.6 poise.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: February 10, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Junko Yamaguchi, Mitsuru Maeda, Tetsuji Kunitake, Kazuyoshi Inamura, Yasumitsu Kuga, Shigeru Miyajima, Tadafumi Tatewaki, Yoshiaki Yamada
  • Patent number: 5250346
    Abstract: A thermal image transfer recording medium is composed of a support and a thermofusible ink layer formed on the support, with the water-content ratio of the recording medium excluding the support being in the range of 0.3 to 4.0 wt. % of the total weight of the recording medium excluding the support.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: October 5, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Moriyasu Nagai, Yuichi Taka, Tadafumi Tatewaki, Shigeru Miyajima, Yoshihiko Hiyoshi, Youji Ide, Nobuyuki Maeda, Kumi Surizaki, Tetsuji Kunitake
  • Patent number: 5229189
    Abstract: A thermal image transfer recording medium is composed of a support and a thermofusible ink layer formed thereon, and the thermofusible ink layer contains as the main components a coloring agent, a wax component and a rubber elastomer component which is discontinuously dispersed in the form of layers in the thermofusible ink layer, or is composed of a first ink layer containing a wax component and a rubber elastomer and a second ink layer containing a coloring agent, a wax component and a binder resin, which is overlaid on the first ink layer.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: July 20, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihiko Hiyoshi, Tetsuji Kunitake, Shigeru Miyajima, Yuichi Taka, Moriyasu Nagai, Tadafumi Tatewaki, Youji Ide, Nobuyuki Maeda, Kumi Surizaki
  • Patent number: 4096570
    Abstract: A subchannel memory access control system for use in a data processing system having multiplexor channels to which input/output control units of a first group are connected, and block multiplexor channels to which input/output control units of second and third groups are connected. A plurality of input/output devices of corresponding groups are connected to each control unit.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: June 20, 1978
    Assignee: Fujitsu Limited
    Inventors: Masamichi Ishibashi, Shigeru Miyajima