Patents by Inventor Kiyoshi Tamura

Kiyoshi Tamura 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: 8436881
    Abstract: An image recording medium transfer apparatus includes: a capstan that transfers a recording medium for an image; a pinch roller provided opposite the capstan to pass the recording medium between the pinch roller and the capstan; and a pressing force application unit configured to exert a pressing force to press the capstan and the pinch roller against each other via the recording medium. The capstan includes a plurality of projections on a pressing surface of the capstan that presses the recording medium. When a height of each of the projections from the pressing surface is defined as H, the height H is in a range of 20 mm<H?40 mm.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: May 7, 2013
    Assignee: Sony Corporation
    Inventor: Kiyoshi Tamura
  • Publication number: 20100259591
    Abstract: An image recording medium transfer apparatus includes: a capstan that transfers a recording medium for an image; a pinch roller provided opposite the capstan to pass the recording medium between the pinch roller and the capstan; and a pressing force application unit configured to exert a pressing force to press the capstan and the pinch roller against each other via the recording medium. The capstan includes a plurality of projections on a pressing surface of the capstan that presses the recording medium. When a height of each of the projections from the pressing surface is defined as H, the height H is in a range of 20 mm<H?40 mm.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 14, 2010
    Applicant: SONY CORPORATION
    Inventor: Kiyoshi Tamura
  • Patent number: 7525245
    Abstract: A fluorescence emitting device is provided using a phosphor emitting a light by bombardment of an electron beam and having excellent luminance lifetime. The electron beam excited phosphor comprises a solid solution prepared by an AlN crystal or AlN solid solution crystal formed with at least Eu, Si and oxygen represented by the composition formula Eua Alb Sic Nd Oe [Wherein a+b+c+d+e=1, and a, b, c, d and e satisfy the following conditions: 0.00001?a?0.1 0.4?b?0.55 0.001?c?0.1 0.4?d?0.55 0.001?e?0.1].
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: April 28, 2009
    Assignees: Futaba Corporation, National Institute for Materials Science
    Inventors: Kiyoshi Tamura, Naoto Hirosaki
  • Publication number: 20060226764
    Abstract: A fluorescence emitting device is provided using a phosphor emitting a light by bombardment of an electron beam and having excellent luminance lifetime. The electron beam excited phosphor comprises a solid solution prepared by an AIN crystal or AIN solid solution crystal formed with at least Eu, Si and oxygen represented by the composition formula Eua AIb Sic Nd Oe[Wherein a+b+c+d+e=1, and a, b, c, d and e satisfy the following conditions: 0.00001?a?0.1 0.4?b?0.55 0.001?c?0.1 0.4?d?0.55 0.001?e?0.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 12, 2006
    Inventors: Kiyoshi Tamura, Naoto Hirosaki
  • Publication number: 20060006789
    Abstract: A fluorescent display tube is provided, which employs a non-evaporation type getter, instead of the evaporation-type Ba getter, whereby the serviceable life of the fluorescent substance containing SrTiO3 as a base component is prolonged. At least one or more elements selected from the group consisting of Zr, V, Fe, Ti, Ma, Mn, and La are used for the getter for fluorescent display tubes, each which employs a fluorescent substance containing SrTiO3 as a base component. This feature allows carbon series residual gases remaining in the tube to be removed, so that the serviceable operation can be prolonged.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 12, 2006
    Inventors: Shigeo Itoh, Hitoshi Toki, Hirokazu Takanashi, Hisamitsu Takahashi, Yoshitaka Sato, Kazuhiko Itakura, Takuya Hamada, Takao Shiraga, Kiyoshi Tamura, Tatsuo Yamaura
  • Patent number: 6660187
    Abstract: A phosphor for use with low speed electron beams is characterized by the following general composition formula. (Y, Ce)2O3.nSiO2 0.4≦n<1.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: December 9, 2003
    Assignees: Nichia Corporation, Futaba Corporation
    Inventors: Yasunobu Noguchi, Kiyoshi Tamura
  • Patent number: 6517740
    Abstract: The present invention provides a phosphor of formula A2SiO5:B (A is Y or Gd, and B is Ce or Tb) which is characterized by a surface elemental composition represented by (A+B)/Si ranging from 1.5 to 2.5, wherein A is Y or Gd, and B is Ce or Tb; and method for preparing said phosphor. One embodiment of the method is as follows: a SiO2 powder is mixed with co-precipitate (Y, Ce)2O3 (Ce/Y=0.01), in an amount ranging from 10 to 110 mol % based on the amount of (Y, Ce)2O3, and the mixture is charged into the inner crucible of a double-walled aluminum crucible. After graphite is charged between the inner and outer crucible, the mixture is calcined at 1450° C. for 2 hours to obtain an Y2SiO5:Ce phosphor. The luminous efficiency of a field emission display (FED) prepared employing the Y2SiO5:Ce phosphor was measured at an anode voltage of 600V, an electric power input of 30 Wp-p and a duty rate of 1/240.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: February 11, 2003
    Assignee: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Fumiaki Kataoka, Kiyoshi Tamura, Yoshitaka Sato, Yuji Nomura
  • Publication number: 20030006400
    Abstract: A phosphor for use with low speed electron beams is characterized by the following general composition formula.
    Type: Application
    Filed: June 6, 2002
    Publication date: January 9, 2003
    Inventors: Yasunobu Noguchi, Kiyoshi Tamura
  • Publication number: 20010023936
    Abstract: The present invention provides a phosphor of formula A2SiO5:B (A is Y or Gd, and B is Ce or Tb) which is characterized by a surface elemental composition represented by (A+B)/Si ranging from 1.5 to 2.5, wherein A is Y or Gd, and B is Ce or Tb; and method for preparing said phosphor. One embodiment of the method is as follows: a SiO2 powder is mixed with co-precipitate (Y, Ce)2O3 (Ce/Y=0.01), in an amount ranging from 10 to 110 mol % based on the amount of (Y, Ce)2O3, and the mixture is charged into the inner crucible of a double-walled aluminum crucible. After graphite is charged between the inner and outer crucible, the mixture is calcined at 1450° C. for 2 hours to obtain an Y2SiO5:Ce phosphor. The luminous efficiency of a field emission display (FED) prepared employing the Y2SiO5:Ce phosphor was measured at an anode voltage of 600V, an electric power input of 30 Wp-p and a duty rate of 1/240.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 27, 2001
    Applicant: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Fumiaki Kataoka, Kiyoshi Tamura, Yoshitaka Sato, Yuji Nomura
  • Patent number: 5637322
    Abstract: In producing a composition for solid medicine, comprising, as an active ingredient, a potassium channel activator and a pharmaceutically acceptable water-insoluble cellulose polymer, a method for producing a composition for solid medicine, which is characterized by dissolving a potassium channel activator in a solvent to give a medical solution, adding said medical solution to a water-insoluble cellulose polymer inert to said solvent in an amount necessary and sufficient to achieve a predetermined elution rate, homogeneously mixing them and drying the mixture to remove the solvent, and a composition for solid medicine, which is obtainable by said production method. According to the method of the present invention, elution rate of the active ingredient of a preparation comprising a potassium channel activator, which is a sustained release preparation, can be controlled with ease and with good reproducibility.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: June 10, 1997
    Assignees: Japan Tobacco Inc., Yoshitomi Pharmaceutical Industries Ltd.
    Inventors: Kiyoshi Tamura, Ken-ichi Sugimori, Kenji Ogawa
  • Patent number: 3963811
    Abstract: A process for producing a composite metal powder which comprises mixing a powder of a metal or alloy with a melt of a metal or alloy of a different class from that of the metal or alloy powder and atomizing the resulting molten mixture by jetting a high speed jet stream of water against the stream of the mixture to thereby obtain a composite metal powder in which the surface of the metal or alloy powder is coated with a layer of the originally molten or alloy.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: June 15, 1976
    Assignee: National Research Institute for Metals
    Inventors: Kiyoshi Tamura, Tohru Takeda