Patents by Inventor Hidetsugu Takaoka

Hidetsugu Takaoka 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).

  • Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generation
    Patent number: 9852898
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer, disposed on the substrate, for generating ultraviolet light in response to an electron beam. The light-emitting layer includes a powdery or granular oxide crystal containing Lu and Si doped with an activator (e.g., Pr:LPS and Pr:LSO crystals).
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 26, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Takashi Suzuki
  • Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generation
    Patent number: 9728393
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light UV in response to an electron beam. The light-emitting layer includes a powdery or granular rare-earth-containing aluminum garnet crystal doped with an activator. The light-emitting layer has an ultraviolet light emission peak wavelength of 300 nm or shorter.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 8, 2017
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Takashi Suzuki
  • Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generation
    Patent number: 9240313
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light in response to an electron beam. The light-emitting layer includes a polycrystalline film constituted by an oxide polycrystal containing Lu and Si doped with an activator or a polycrystalline film constituted by a rare-earth-containing aluminum garnet polycrystal doped with an activator.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: January 19, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Norio Ichikawa, Takashi Suzuki
  • TARGET FOR ULTRAVIOLET LIGHT GENERATION, ELECTRON BEAM-EXCITED ULTRAVIOLET LIGHT SOURCE, AND PRODUCTION METHOD FOR TARGET FOR ULTRAVIOLET LIGHT GENERATION
    Publication number: 20150294853
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light in response to an electron beam. The light-emitting layer includes a polycrystalline film constituted by an oxide polycrystal containing Lu and Si doped with an activator or a polycrystalline film constituted by a rare-earth-containing aluminum garnet polycrystal doped with an activator.
    Type: Application
    Filed: September 6, 2013
    Publication date: October 15, 2015
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Norio Ichikawa, Takashi Suzuki
  • TARGET FOR ULTRAVIOLET LIGHT GENERATION, ELECTRON BEAM-EXCITED ULTRAVIOLET LIGHT SOURCE, AND PRODUCTION METHOD FOR TARGET FOR ULTRAVIOLET LIGHT GENERATION
    Publication number: 20150287587
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer disposed on the substrate and generating ultraviolet light UV in response to an electron beam. The light-emitting layer includes a powdery or granular rare-earth-containing aluminum garnet crystal doped with an activator. The light-emitting layer has an ultraviolet light emission peak wavelength of 300 nm or shorter.
    Type: Application
    Filed: September 6, 2013
    Publication date: October 8, 2015
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Takashi Suzuki
  • TARGET FOR ULTRAVIOLET LIGHT GENERATION, ELECTRON BEAM-EXCITED ULTRAVIOLET LIGHT SOURCE, AND PRODUCTION METHOD FOR TARGET FOR ULTRAVIOLET LIGHT GENERATION
    Publication number: 20150270116
    Abstract: A target for ultraviolet light generation comprises a substrate adapted to transmit ultraviolet light therethrough and a light-emitting layer, disposed on the substrate, for generating ultraviolet light in response to an electron beam. The light-emitting layer includes a powdery or granular oxide crystal containing Lu and Si doped with an activator (e.g., Pr:LPS and Pr:LSO crystals).
    Type: Application
    Filed: September 6, 2013
    Publication date: September 24, 2015
    Inventors: Yoshinori Honda, Hiroyuki Taketomi, Fumitsugu Fukuyo, Koji Kawai, Hidetsugu Takaoka, Takashi Suzuki
  • X-ray tube
    Patent number: 7526069
    Abstract: The present invention relates to an X-ray tube capable of efficiently extracting X-rays of low energy and provided with a structure having excellent durability. The X-ray tube is provided with a silicon foil having a thickness of 3 ?m or more but 30 ?m or less as a part of a vessel body. The silicon foil is directly or indirectly affixed on the closed vessel in a state that the silicon foil covers the opening provided in the closed vessel, and functions as a transmission window of the closed vessel.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: April 28, 2009
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Tatsuya Matsumura, Tomoyuki Okada, Tooru Yamamoto, Hidetsugu Takaoka, Tetsuro Endo
  • X-ray tube
    Publication number: 20060280290
    Abstract: The present invention relates to an X-ray tube capable of efficiently extracting X-rays of low energy and provided with a structure having excellent durability. The X-ray tube is provided with a silicon foil having a thickness of 3 ?m or more but 30 ?m or less as a part of a vessel body. The silicon foil is directly or indirectly affixed on the closed vessel in a state that the silicon foil covers the opening provided in the closed vessel, and functions as a transmission window of the closed vessel.
    Type: Application
    Filed: September 15, 2004
    Publication date: December 14, 2006
    Inventors: Tatsuya Matsumura, Tomoyuki Okada, Tooru Yamamoto, Hidetsugu Takaoka, Tetsuro Endo