Patents by Inventor Seiji Yasunaga

Seiji Yasunaga 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: 8552323
    Abstract: A push switch includes a first fixed contact and a second fixed contact disposed apart from the first fixed contact. Furthermore, the push switch includes a dome-shaped metallic movable contact facing the first fixed contact with a space therebetween, and a protrusion disposed above a center of the movable contact. When the protrusion is pressed, the movable contact is elastically reversed, and the first fixed contact and the second fixed contact become electrically conductive with each other via the movable contact.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventors: Seiji Yasunaga, Masatsugu Takeuchi
  • Publication number: 20110284357
    Abstract: A push switch includes a first fixed contact and a second fixed contact disposed apart from the first fixed contact. Furthermore, the push switch includes a dome-shaped metallic movable contact facing the first fixed contact with a space therebetween, and a protrusion disposed above a center of the movable contact. When the protrusion is pressed, the movable contact is elastically reversed, and the first fixed contact and the second fixed contact become electrically conductive with each other via the movable contact.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 24, 2011
    Applicant: Panasonic Corporation
    Inventors: Seiji Yasunaga, Masatsugu Takeuchi
  • Patent number: 5532434
    Abstract: An insulated wire having a conductor coated with insulating material wherein a light absorbing layer is provided between the conductor and the insulating material, thereby an insulating coating can be easily peeled off by means of laser.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: July 2, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shozui Takeno, Masaharu Moriyasu, Kazumichi Machida, Seiji Yasunaga
  • Patent number: 5099791
    Abstract: An apparatus for depositing, through evaporation, a thin film on a substrate disposed in a vacuum vessel by ionizing a beam of clusters emitted from an evaporation source and causing the ionized cluster beam to impinge on the substrate, comprises a thermionic emission portion for emitting thermoelectrons disposed in a plane orthogonal to the center axis of the cluster beam, a shield plate for preventing the cluster beam from striking the thermionic emission portion, and a reflection electrode for directing the thermoelectrons emitted from the thermionic emission portion toward the center axis of the cluster beam.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: March 31, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisashi Tsukazaki, Kenichiro Yamanishi, Seiji Yasunaga
  • Patent number: 4812326
    Abstract: An evaporation source in which an evaporation material is vaporized and jetted through a nozzle having a gradually opening cross-section, whereby the size of atom clusters of the jetted vapor can be controlled.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 14, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisashi Tsukazaki, Kenichiro Yamanishi, Seiji Yasunaga
  • Patent number: 4811690
    Abstract: A thin film deposition apparatus includes an ionizing means for ionizing part of clusters from a vapor generating source by the cluster ion beam method. The ionizing means has an ionizing filament for emitting thermoelectrons to ionize the clusters, an electron extracting electrode for accelerating the thermoelectrons toward the clusters, and an electron controlling electrode disposed on the side of the electron extracting electrode for controlling the presence of the thermoelectrons at the center of the ionizing section. The thermoelectrons are substantially eliminated in the vicinity of the center of the ionizing portion due to the provision of the thermoelectron extracting electrode, thereby substantially eliminating the cluster ions generated in the vicinity of the center of the ionizing portion and reducing the quantity of clusters that concentrate on the center of a substrate.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: March 14, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasuyuki Kawagoe, Kenichiro Yamanishi, Seiji Yasunaga
  • Patent number: 4684782
    Abstract: A feedback signal of a beam accelerating voltage, which is input into a feedback control system is fixed at a predetermined value corresponding to a signal under the condition before generation of arcing, when the arcing is generated, and thereafter, the fixed feedback signal is released to continue a feedback control.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hidenobu Murakami, Seiji Yasunaga