Patents by Inventor Mituru Harada

Mituru Harada 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: 8410677
    Abstract: The present invention provides a blue phosphor having high luminance and showing less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor that includes: an alkaline earth metal aluminate represented by a general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, and a+b?0.97 are satisfied; and 0.008 mol to 0.800 mol of MWO4 with respect to 1 mol of the aluminate, where M is at least one element selected from a group consisting of Ba, Sr, and Ca.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: April 2, 2013
    Assignee: Panasonic Corporation
    Inventors: Kojiro Okuyama, Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada
  • Patent number: 8366965
    Abstract: The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2.eWO3, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, 0.001?e?0.100, and a+b?0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2?=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 ?.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: February 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Kojiro Okuyama, Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada
  • Patent number: 8308979
    Abstract: An ink for an organic electroluminescent device includes a functional material, a first solvent, a second solvent, and a third solvent. The functional material is for forming a functional layer of the organic electroluminescent device. The first solvent is for dissolving the functional material. The second solvent has a diester backbone and a second boiling point that is at most equal to a first boiling point of the first solvent or greater than the first boiling point of the first solvent by at most 20° C. The third solvent is an aliphatic alcohol and has a third boiling point that is less than the first boiling point of the first solvent and less than the second boiling point of the second solvent.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: November 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Shinichiro Ishino, Tomoki Masuda, Hirotaka Nanno, Yuko Kawanami, Noriyuki Matsusue, Mituru Harada
  • Publication number: 20120181480
    Abstract: The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2.eWO3, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, 0.001?e?0.100, and a+b?0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2?=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 ?.
    Type: Application
    Filed: July 11, 2011
    Publication date: July 19, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Kojiro OKUYAMA, Yayoi KITAMURA, Seigo SHIRAISHI, Kazuhiko SUGIMOTO, Mituru HARADA
  • Publication number: 20120001124
    Abstract: An ink for an organic electroluminescent device includes a functional material, a first solvent, a second solvent, and a third solvent. The functional material is for forming a functional layer of the organic electroluminescent device. The first solvent is for dissolving the functional material. The second solvent has a diester backbone and a second boiling point that is at most equal to a first boiling point of the first solvent or greater than the first boiling point of the first solvent by at most 20° C. The third solvent is an aliphatic alcohol and has a third boiling point that is less than the first boiling point of the first solvent and less than the second boiling point of the second solvent.
    Type: Application
    Filed: August 25, 2011
    Publication date: January 5, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Shinichiro ISHINO, Tomoki MASUDA, Hirotaka NANNO, Yuko KAWANAMI, Noriyuki MATSUSUE, Mituru HARADA
  • Patent number: 8040063
    Abstract: The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2.eWO3, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, 0.001?e?0.100, and a+b?0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2?=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 ?.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: October 18, 2011
    Assignee: Panasonic Corporation
    Inventors: Kojiro Okuyama, Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada
  • Patent number: 7794628
    Abstract: A chip-shaped electronic component includes a substrate and an end face electrode layer provided on an end face of the substrate, in which the end face electrode layer contains a mixed material. The mixed material includes as a conductive particle, a carbon powder, a whisker-like inorganic filler coated with a conductive film, and a flake-like conductive powder. Additionally, an epoxy resin has a weight-average molecular weight between 1,000 and 80,000.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: September 14, 2010
    Assignee: Panasonic Corporation
    Inventors: Naohiro Takashima, Shoji Hoshitoku, Takasi Oobayasi, Mituru Harada
  • Publication number: 20100141113
    Abstract: The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2.eWO3, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, 0.001?e?0.100, and a+b?0.97 are satisfied. In this blue phosphor, two peaks whose tops are located in a range of diffraction angle 2?=13.0 to 13.6 degrees are present in an X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 ?.
    Type: Application
    Filed: March 25, 2008
    Publication date: June 10, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Kojiro Okuyama, Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada
  • Publication number: 20100052506
    Abstract: The present invention provides a blue phosphor having high luminance and showing less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor that includes: an alkaline earth metal aluminate represented by a general formula aBaO.bSrO.(1?a?b)EuO.cMgO.dAlO3/2, where 0.70?a?0.95, 0?b?0.15, 0.95?c?1.15, 9.00?d?11.00, and a+b?0.97 are satisfied; and 0.008 mol to 0.800 mol of MWO4 with respect to 1 mol of the aluminate, where M is at least one element selected from a group consisting of Ba, Sr, and Ca.
    Type: Application
    Filed: March 25, 2008
    Publication date: March 4, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Kojiro Okuyama, Yayoi Kitamura, Seigo Shiraishi, Kazuhiko Sugimoto, Mituru Harada
  • Publication number: 20090134361
    Abstract: A chip-shaped electronic component comprising a substrate and an end face electrode layer provided on an end face of the substrate, in which the end face electrode layer contains a mixed material including, as a conductive particle, a carbon powder, a whisker-like inorganic filler coated with a conductive film, and a flake-like conductive powder, and an epoxy resin having a weight-average molecular weight between 1,000 and 80,000.
    Type: Application
    Filed: August 28, 2006
    Publication date: May 28, 2009
    Inventors: Naohiro Takashima, Shoji Hoshitoku, Takasi Oobayasi, Mituru Harada
  • Publication number: 20070200944
    Abstract: A light receiving region 21 and a floating diffusion region 22 are formed apart from each other in a semiconductor substrate 20 (S11), translucent adhesive 31 is applied to an area corresponding to the light receiving region 21 on the semiconductor substrate 20 (S22), and a translucent plate 30 is attached to the semiconductor substrate 20 on which the translucent adhesive 31 has been applied (S23). In this semiconductor manufacturing process, before the translucent adhesive 31 is applied, a dam member 24 is formed on the semiconductor substrate 20 so as to prevent the translucent adhesive 31 from flowing into an area corresponding to the floating diffusion region 22 on the semiconductor substrate 20 (S18).
    Type: Application
    Filed: October 27, 2006
    Publication date: August 30, 2007
    Inventors: Yasuo Takeuchi, Tomoko Komatsu, Nobukazu Teranishi, Tomoki Masuda, Yutaka Harada, Mituru Harada, Takashi Ohbayashi