Patents by Inventor Takayuki Hiraishi

Takayuki Hiraishi 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: 9748087
    Abstract: Disclosed herein are a short arc type flash lamp having high lamp starting performance and capable of reducing the diameter of its seal tube part, and a light source device thereof. The flash lamp has an electrode shaft of one of the main electrodes, and an electrode shaft of the other of the main electrodes and leads for starting auxiliary electrodes which are respectively led out from the second seal tube part, and an external trigger is disposed in a state in which it extends in the circumferential direction on the outer peripheral surface of one end side region of the second seal tube part. The light source device is structured by a concave reflection mirror disposed on the second seal tube part side of the flash lamp in a state in which a focal point of the concave reflection mirror coincides with a luminous point of the flash lamp.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: August 29, 2017
    Assignee: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Masahiko Kase, Takayuki Hiraishi
  • Patent number: 9153428
    Abstract: A double-capped short arc flash lamp includes an arc tube, a pair of main electrodes disposed in the arc tube, and a pair of auxiliary electrodes disposed in the arc tube. The flash lamp also includes inner leads and outer leads associated with the two auxiliary electrodes, respectively. The flash lamp also includes a first sealing tube and a second sealing tube provided at opposite ends of the arc tube. A sealing glass tube is partly received in the second sealing tube. Grooves are formed in the outer surface of the sealing glass tube in a region where the sealing glass tube overlaps the second sealing tube. The grooves extend in the axial direction of the sealing glass tube, and are configured to receive the inner leads and the outer leads. Metallic foils electrically connect the inner leads with the outer leads, respectively.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 6, 2015
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventors: Masahiko Kase, Takayuki Hiraishi, Hirohisa Ishikawa
  • Publication number: 20150249003
    Abstract: Disclosed herein are a short arc type flash lamp having high lamp starting performance and capable of reducing the diameter of its seal tube part, and a light source device thereof. The flash lamp has an electrode shaft of one of the main electrodes, and an electrode shaft of the other of the main electrodes and leads for starting auxiliary electrodes which are respectively led out from the second seal tube part, and an external trigger is disposed in a state in which it extends in the circumferential direction on the outer peripheral surface of one end side region of the second seal tube part. The light source device is structured by a concave reflection mirror disposed on the second seal tube part side of the flash lamp in a state in which a focal point of the concave reflection mirror coincides with a luminous point of the flash lamp.
    Type: Application
    Filed: February 13, 2015
    Publication date: September 3, 2015
    Applicant: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Masahiko KASE, Takayuki HIRAISHI
  • Publication number: 20150115794
    Abstract: A double-capped short arc flash lamp includes an arc tube, a pair of main electrodes disposed in the arc tube, and a pair of auxiliary electrodes disposed in the arc tube. The flash lamp also includes inner leads and outer leads associated with the two auxiliary electrodes, respectively. The flash lamp also includes a first sealing tube and a second sealing tube provided at opposite ends of the arc tube. A sealing glass tube is partly received in the second sealing tube. Grooves are formed in the outer surface of the sealing glass tube in a region where the sealing glass tube overlaps the second sealing tube. The grooves extend in the axial direction of the sealing glass tube, and are configured to receive the inner leads and the outer leads. Metallic foils electrically connect the inner leads with the outer leads, respectively.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 30, 2015
    Applicant: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Masahiko KASE, Takayuki HIRAISHI, Hirohisa ISHIKAWA
  • Publication number: 20120186961
    Abstract: An information processing apparatus includes a keyboard having a plurality of keys. The keyboard includes a sheet having a plurality of switch units for switching a non-conductive state and a conductive state according to operation with which the plurality of keys are respectively pressed down, the sheet having a first opening portion at a position corresponding to at least one of the keys, and a light emitting member provided below the sheet to emit light toward the key, the light emitting member having a second opening portion at a position corresponding to at least one of the keys.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 26, 2012
    Applicant: SONY CORPORATION
    Inventors: Shin Oike, Junichi Tadano, Tomoaki Watanabe, Takayuki Hiraishi
  • Patent number: 7602126
    Abstract: Flash discharge lamp having an arc tube in which there is a pair of opposed electrodes, a rod-shaped trigger electrode which runs along the outside surface of the arc tube in its lengthwise direction; and a sealed tubular body which jackets the trigger electrode and has a hermetically sealed arrangement containing a metal foil. The trigger electrode has a recessed part on its surface in the vicinity of the metal foil and the recessed part is at least partially filled with the material of which the sealed tubular body is formed.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: October 13, 2009
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Tetsuo Fuse, Katsumi Shojo, Takayuki Hiraishi
  • Publication number: 20070267974
    Abstract: Flash discharge lamp having an arc tube in which there is a pair of opposed electrodes, a rod-shaped trigger electrode which runs along the outside surface of the arc tube in its lengthwise direction; and a sealed tubular body which jackets the trigger electrode and has a hermetically sealed arrangement containing a metal foil. The trigger electrode has a recessed part on its surface in the vicinity of the metal foil and the recessed part is at least partially filled with the material of which the sealed tubular body is formed.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 22, 2007
    Applicant: USHIODENKI KABUSHIKI KAISHA
    Inventors: Tetsuo FUSE, Katsumi SHOJO, Takayuki HIRAISHI