Patents by Inventor Masahisa Yamaguchi

Masahisa Yamaguchi 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: 5292710
    Abstract: An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet, said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Noritaka Egashira, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Masaki Kutsukake, Kazunobu Imoto
  • Patent number: 5276004
    Abstract: An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet, said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: January 4, 1994
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Noritaka Egashira, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Masaki Kutsukake, Kazunobu Imoto
  • Patent number: 5210068
    Abstract: An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet, said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: May 11, 1993
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Noritaka Egashira, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Masaki Kutsukake, Kazunobu Imoto
  • Patent number: 5200253
    Abstract: A thin film of molten polypropylene resin extruded from a T die is pressed and cooled with a chill roll equipped with a hologram relief master plate on its peripheral surface, whereupon a hologram pattern is simultaneously formed as an integral part of the polypropylene resin sheet being molded. Since the polypropylene resin has a Rockwell hardness of at least 70, the hologram pattern formed in the resulting hologram forming sheet is less likely to be damaged or lost during subsequent processing.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: April 6, 1993
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Masahisa Yamaguchi, Hitoshi Fujii, Shuichi Kobayashi, Takahiro Kawai
  • Patent number: 5078427
    Abstract: A label having a sublimation transferred image constituted of an image-receiving sheet, comprising a tacky layer, a sheet substrate and an image-receiving layer laminated in this order on a peeling sheet. The tacky layer, sheet substrate and image-receiving layer form a label portion, and the image-receiving sheet has a structure peelable between the label portion and the peeling sheet. The label has one or more frames of sublimation transferred images formed by transfer of a sublimable dye in a colorant layer of a heat transfer sheet by heating according to an image information. The label portion is applied with half-cut treatment with cutting lines for sectionalizing every frame of the sublimation transferred image.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: January 7, 1992
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Tohru Ishii, Koichi Asahi, Masahisa Yamaguchi
  • Patent number: 5053382
    Abstract: The dye receiving sheet for preparation of a transparency according to the present invention is a sheet to be used in combination with a heat transfer sheet having a dye layer formed thereon and includes (2) a transparent substrate, (3) a transparent receiving layer provided on the transparent substrate for receiving the dye migrating from the heat transfer sheet corresponding to the energy applied from a thermal head and (5) an optically detectable layer provided on at least a part of the heat transferable sheet. By the provision of the optically detectable layer (5), improvement of running performance, operability within a heat-sensitive device as well as image density and sensitivity during printing can be attained, and also a detection mark can be freely added, whereby operability of the dye receiving sheet can be further improved.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: October 1, 1991
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Masanori Akada, Noritaka Egashira, Mikizo Mizuno, Masaki Kutsukake, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Takao Suzuki, Hitoshi Arita, Kazuyoshi Sorimachi, Tamami Iwata
  • Patent number: 5001106
    Abstract: An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet, said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: March 19, 1991
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Noritaka Egashira, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Masaki Kutsukake, Kazunobu Imoto
  • Patent number: 4984823
    Abstract: A label having a sublimation transferred image constituted of an image-receiving sheet, comprising a tacky layer, a sheet substrate and an image-receiving layer laminated in this order on a peeling sheet. The tacky layer, sheet substrate and image-receiving layer form a label portion, and the image-receiving sheet has a structure peelable between the label portion and the peeling sheet. The label has one or more frames of sublimation transferred images formed by transfer of a sublimable dye in a colorant layer of a heat transfer sheet by heating according to an image information. The label portion is applied with half-cut treatment with cutting lines for sectionalizing every frame of the sublimation transferred image.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: January 15, 1991
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Tohru Ishii, Koichi Asahi, Masahisa Yamaguchi
  • Patent number: 4910188
    Abstract: The dye receiving sheet for preparation of a transparency according to the present invention is a sheet to be used in combination with a heat transfer sheet having a dye layer formed thereon and includes (2) a transparent substrate, (3) a transparent receiving layer provided on the transparent substrate for receiving the dye migrating from the heat transfer sheet corresponding to the energy applied from a thermal head and (5) an optically detectable layer provided on at least a part of the heat transferable sheet. By the provision of the optically detectable layer (5), improvement of running performance, operability within a heat-sensitive device as well as image density and sensitivity during printing can be attained, and also a detection mark can be freely added, whereby operability of the dye receiving sheet can be further improved.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: March 20, 1990
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Masanori Akada, Noritaka Egashira, Mikizo Mizuno, Masaki Kutsukake, Yoshikazu Ito, Tatsuya Kita, Masahisa Yamaguchi, Takao Suzuki, Hitoshi Arita, Kazuyoshi Sorimachi, Tamami Iwata
  • Patent number: 4097804
    Abstract: A diversity system using a phase control circuit for combining respective outputs of a plurality of routes of different path lengths transferring the same analog signal. An analog variable delay circuit, which is capable of controlling its amount of delay by varying the repetition frequency of clock pulses, and a low-pass filter connected to the output of the analog variable delay circuit are inserted in each route other than a reference one of the plurality of receiving routes. A phase difference between the output signal of the low-pass filter and the signal of the reference route is detected. The repetition frequency of the clock pulses is controlled by the detected phase difference for controlling the analog variable delay circuit in a manner to reduce the phase difference, so that the phase difference between the respective output signals of the plurality of receiving routes is substantially negligible to allow combining the output signals.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: June 27, 1978
    Assignee: Kokusai Denshin Denwa Kabushiki Kaisha
    Inventors: Masahisa Yamaguchi, Tatsuo Watanabe
  • Patent number: 4068186
    Abstract: A circuit for compensating for the nonlinearity in a high-frequency amplifier, in which a pair of a first transmission line and a second transmission line respectively have a delay line and a nonlinear distortion generating high-frequency amplifier. An input signal is divided into two signal parts, which are respectively applied to the first transmission line and the second transmission line. The vector sum of respective outputs of the first transmission line and the second transmission line is obtained to provide a nonlinear characteristic for compensating for the amplitude and phase nonlinear characteristics in the high-frequency amplifier connected in cascade to this circuit.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: January 10, 1978
    Assignee: Kokusai Denshin Denwa Kabushiki Kaisha
    Inventors: Gunkichi Sato, Masahisa Yamaguchi
  • Patent number: 4052670
    Abstract: A space diversity PCM-TDMA telecommunication system using a stationary communication satellite, in which fixed delay circuits are respectively inserted in the sending side and the receiving side of one route at a control equipment, while variable delay circuits are inserted in the sending side and the receiving side of the other route at the control equipment, so that electrical length of one route from the satellite to the control equipment may be the same as that of the other route from the satellite to the control equipment through the route including connection links between the two sites. Diversity switching can be performed with no duplication and lack of signals in accordance with the above construction.
    Type: Grant
    Filed: December 23, 1975
    Date of Patent: October 4, 1977
    Assignee: Kokusai Denshin Denwa Kabushiki Kaisha
    Inventors: Tatsuo Watanabe, Hideki Saito, Akira Ogawa, Masahisa Yamaguchi, deceased