Patents by Inventor Michinari Ohuchi

Michinari Ohuchi 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).

  • Copper-containing silica glass, method for producing the same, and xenon flash lamp using the same
    Patent number: 8635886
    Abstract: It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: January 28, 2014
    Assignees: Shin-Etsu Quartz Products Co., Ltd., Opto-Electronics Laboratory, Inc.
    Inventors: Tetsuji Ueda, Michinari Ohuchi, Hiroyuki Nishimura, Akira Fujinoki, Masahiro Nakatsuka, Hidetsugu Yoshida
  • COPPER-CONTANING SILICA GLASS, METHOD FOR PRODUCING THE SAME, AND XENON FLASH LAMP USING THE SAME
    Publication number: 20120291488
    Abstract: It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 22, 2012
    Applicants: OPTO-ELECTRONICS LABORATORY, INC., SHIN-ETSU QUARTZ PRODUCTS CO., LTD.
    Inventors: Tetsuji Ueda, Michinari Ohuchi, Hiroyuki Nishimura, Akira Fujinoki, Masahiro Nakatsuka, Hidetsugu Yoshida
  • COPPER-CONTANING SILICA GLASS, METHOD FOR PRODUCING THE SAME, AND XENON FLASH LAMP USING THE SAME
    Publication number: 20100109509
    Abstract: It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
    Type: Application
    Filed: April 28, 2008
    Publication date: May 6, 2010
    Applicants: SHIN-ETSU QUARTZ PRODUCTS CO., LTD. (SQP), OPTO-ELECTRONICS LABORATORY, INC.
    Inventors: Tetsuji Ueda, Michinari Ohuchi, Hiroyuki Nishimura, Akira Fujinoki, Masahiro Nakatsuka, Hidetsugu Yoshida