Patents by Inventor Yoshizumi Ito

Yoshizumi Ito 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: 8428448
    Abstract: A walking beam type heat treatment apparatus including a heating furnace having a heating body to heat a substrate by radiation, a pair of first beams that are rod-like and provided in the heating furnace and a second beam disposed between the pair of the first beams, one of the pair of the first beams and the second beam relatively moving alternately in longitudinal and vertical directions repeatedly to the other of the pair of the first beams and the second beam, to cause to deliver and receive the substrate between the pair of the first beams and the second beam, and accordingly, to convey the substrate through the heating furnace, includes a side edge support protrusion that protrudes from each of the pair of the first beams such that the side edge support protrusion can horizontally support the substrate in abutting contact with a side edge of the substrate; and a front edge support protrusion and a rear edge support protrusion that protrude from the second beam such that the front edge support protrusio
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: April 23, 2013
    Assignee: Noritake Co., Limited
    Inventors: Takashi Iwata, Yoshizumi Ito, Katsuhiro Kano
  • Publication number: 20100195992
    Abstract: A walking beam type heat treatment apparatus including a heating furnace having a heating body to heat a substrate by radiation, a pair of first beams that are rod-like and provided in the heating furnace and a second beam disposed between the pair of the first beams, one of the pair of the first beams and the second beam relatively moving alternately in longitudinal and vertical directions repeatedly to the other of the pair of the first beams and the second beam, to cause to deliver and receive the substrate between the pair of the first beams and the second beam, and accordingly, to convey the substrate through the heating furnace, includes a side edge support protrusion that protrudes from each of the pair of the first beams such that the side edge support protrusion can horizontally support the substrate in abutting contact with a side edge of the substrate; and a front edge support protrusion and a rear edge support protrusion that protrude from the second beam such that the front edge support protrusio
    Type: Application
    Filed: October 20, 2009
    Publication date: August 5, 2010
    Applicant: NORITAKE CO., LTD.
    Inventors: Takashi Iwata, Yoshizumi Ito, Katsuhiro Kano
  • Patent number: 6656280
    Abstract: A resist recycling apparatus includes a viscosity control tank supplied with wasted resist liquid; a solvent tank that supplies a solvent to the viscosity control tank; a viscometer that measures viscosity of the resist according to the viscosity measured by the viscometer and the temperature of the resist, and that determines an amount of solvent to supply to the viscosity control tank according to the difference between the calculated resin density and a predetermined resin density; and a filter that removes dust from the resist.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: December 2, 2003
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yasuharu Oota, Yoshizumi Ito
  • Publication number: 20030042183
    Abstract: This invention provides a resist recycling apparatus and the method for resist recycling. A resist recycling apparatus includes a viscosity control tank being supplied with wasted resist liquid, a solvent tank supplying a solvent to the viscosity control tank, a viscometer measuring viscosity of the resist in the viscosity control tank, a control portion calculating the resin density of the resist according to the viscosity measured by the viscometer and the temperature of the resist, determining an amount of solvent to supply to the viscosity control tank according to the difference between the calculated resin density and a predetermined resin density, and a filter for removing dust from the resist.
    Type: Application
    Filed: October 29, 2002
    Publication date: March 6, 2003
    Inventors: Yasuharu Oota, Yoshizumi Ito
  • Patent number: 6503568
    Abstract: This invention provides a resist recycling apparatus and the method for resist recycling. A resist recycling apparatus includes a viscosity control tank being supplied with wasted resist liquid, a solvent tank supplying a solvent to the viscosity control tank, a viscometer measuring viscosity of the resist in the viscosity control tank, a control portion calculating the resin density of the resist according to the viscosity measured by the viscometer and the temperature of the resist, determining an amount of solvent to supply to the viscosity control tank according to the difference between the calculated resin density and a predetermined resin density, and a filter for removing dust from the resist.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: January 7, 2003
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yasuharu Oota, Yoshizumi Ito
  • Patent number: 4724371
    Abstract: The present invention provides a rotation detection apparatus of a rotational axis connected to an output axis system of a reduction gear to count the rotation of a rotational axis driven rotationally, including a reduction gear, with an integer reduction ratio, whose rotational axis of a driving source is connected to an input axis. The apparatus provides a position signal once every rotation of the output axis, and a rotation angle signal in response to the rotation angle of said input axis is output to correlate said output position signal with one of said rotation angle signals to count the rotation of the rotational axis by these position and rotation angle signals. An accurate rotation can be detected even at one-way high-speed rotation.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: February 9, 1988
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Cho Kenkyusho
    Inventors: Yoshizumi Ito, Yasuo Ishiguro, Osamu Shiroshita