Patents by Inventor Takashi Uemura

Takashi Uemura 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: 6329076
    Abstract: A hydrogen storage material (1) having excellent hydrogen storage capability and having such a low hydrogen desorption temperature as not to significantly hinder the use thereof, and also capable of being mass-produced, and a manufacturing method of the same can be obtained. The hydrogen storage material has a layered deformation structure including plastic deformation, and one layer (2) of the layered deformation structure is formed from an alloy or compound including an element of groups 2A, 3A and 4A or an element of at least one of the groups 2A, 3A and 4A, and another layer (3) being in contact with the one layer is formed from an alloy or compound including an element of groups 6A, 7A and 8A or an element of at least one of the groups 6A, 7A and 8A.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: December 11, 2001
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Nozomu Kawabe, Kouichi Sogabe, Shousaku Yamanaka, Yoshinobu Takeda, Takashi Uemura
  • Patent number: 6075065
    Abstract: The invention provides a photocurable resin composition which inhibits the deactivation of a bisacylphosphine oxide-series photopolymerization initiator and is useful for coating optical fibers. The photocurable resin composition comprises (A) a polyurethane (meth)acrylate oligomer, (B) an ethylenically unsaturated compound, (C) a bisacylphosphine oxide-series photopolymerization initiator, and (D) a tertiary amine and no tin component. Incorporation of the component (D) inhibits the decomposition and deactivation of the component (C). The component (A) may contain an aliphatic C.sub.14-40 polyol (hydrogenated dimerdiol, 12-hydroxystearyl alcohol) as a polyol component. This resin composition is used for a primary coating of a glass fiber or an indirect coating of an optical fiber through the primary layer, the coating layer being cured by light irradiation to provide an optical fiber coated with the resin composition.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: June 13, 2000
    Assignees: Takeda Chemical Industries, Ltd., Shin-Etsu Chemical Co., Ltd.
    Inventors: Kyuya Yamazaki, Mitsuhiro Nishimura, Takashi Uemura, Akira Yamamoto, Shouhei Kozakai, Masatoshi Asano
  • Patent number: 6057034
    Abstract: In the coating composition for a optical fiber of the present invention, a polyurethane (meth)acrylate oligomer (A), which is based on a urethane prepolymer having an equivalent ratio of NCO group in a polyisocyanate (a) to OH group in a polyol (b) of more than 3.0, is used and the oligomer (A) has a mixing weight ratio of an oligomer (d) having a number average molecular weight of 800 or less to an oligomer (e) having a number average molecular weight of 1,000 or more of 30/70-70/30.The coating composition of this invention has a low viscosity, and therefore, is suitable for a rapid fiber-drawing in a production of an optical fiber. Further, a cured material obtained from the coating composition of the present invention has both a high elastic modulus and a high elongation, which properties are required for a hard material, and has a slight change of elastic modulus with a change of temperature to improve a long-term reliability of an optical fiber.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: May 2, 2000
    Assignees: Takeda Chemical Industries, Ltd., Shin-Etsu Chemical Co., Ltd.
    Inventors: Kyuya Yamazaki, Mitsuhiro Nishimura, Takashi Uemura, Akira Yamamoto, Shouhei Kozakai, Masatoshi Asano
  • Patent number: 5983792
    Abstract: A device for detecting a printing press for printing a securities printed matter with infrared ray ink of which spectrum characteristics in an infrared region are different from those under white light comprises, infrared ray irradiating means for irradiating infrared ray towards the securities printed matter printed and conveyed, image pick up means for taking an image on the securities printed matter, memory means for previously memorizing the image of a proper securities printed matter printed with infrared ray ink, by irradiating infrared ray, as a standard value, and judgment means for reading out the image memorized in the memory means, comparing an image taken by the image pick up means and the image of the standard value in order to improve an efficiency of quality control of a printing process and detecting process for a printed matter with infrared ray ink and a reliance of a detecting device.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 16, 1999
    Assignee: Komori Corporation
    Inventors: Shigetomo Yoshijima, Takashi Uemura, Seishi Naito, Masaaki Hayashi
  • Patent number: 5968358
    Abstract: A method for washing a hollow fiber membrane used for blood dialysis, comprising washing the inner wall of the hollow fiber with a clearing solvent comprising, as a main component, a specific aliphatic hydrocarbon having a boiling point of 110-240.degree. C. and a flash point of not less than 21.degree. C. According to the present invention, the lipophilic liquid contained in the core part of the hollow fiber can be removed selectively without removing the glycerol filled in the pores of the hollow fiber membrane. In addition, the method of the present invention is free of the problems of flammability and pollution of global environment.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: October 19, 1999
    Assignee: Nissho Corporation
    Inventors: Takeshi Nizuka, Takashi Uemura, Kenji Sugimoto
  • Patent number: 5821003
    Abstract: An organic electroluminescent device having the hole-transport layer in which the hole-transport material is dispersed in the resin binder having a glass transition temperature of not less than 170.degree. C.Since the above organic electroluminescent device has the hole-transport layer exhibiting sufficient durability and higher hole-transport property, it is excellent in luminous efficiency, luminance and stability.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: October 13, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Uemura, Hiroya Kimura, Nobuyuki Okuda, Yoshinobu Ueba, Yasuko Okuda, Hajime Osaka
  • Patent number: 5792567
    Abstract: The triazole derivatives of this invention are expressed by the general formula (1).The organic electroluminescent device of this invention have a layer containing at least one triazole derivative of the general formulas (1) and (2).Such triazole derivatives are excellent in electron-transport efficiency, hole-blocking properties and heat resistance, and such organic electroluminescent devices are excellent in luminous efficiency, luminance and stability. ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 have the same meanings as indicated in the specification.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: August 11, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Junji Kido, Takashi Uemura, Hiroya Kimura, Nobuyuki Okuda, Yoshinobu Ueba, Yasuko Okuda, Hajime Osaka
  • Patent number: 5637260
    Abstract: A stabilized carbon cluster conducting material comprising (i) a core comprising a conducting or superconducting carbon cluster and (ii) a sheath covering the core; a device comprising a substrate having thereon a film of a conducting or superconducting carbon cluster covered with a protective film capable of substantially preventing permeation of oxygen and water in the atmosphere; and processes for producing the stabilized carbon cluster conducting material and the device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 10, 1997
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Nobuyuki Okuda, Takashi Uemura, Yoshinobu Ueba, Koji Tada, Kengo Ohkura, Hirokazu Kugai
  • Patent number: 5635455
    Abstract: A stabilized carbon cluster conducting material comprising (i) a core comprising a conducting or superconducting carbon cluster and (ii) a sheath covering the core; a device comprising a substrate having thereon a film of a conducting or superconducting carbon cluster covered with a protective film capable of substantially preventing permeation of oxygen and water in the atmosphere; and processes for producing the stabilized carbon cluster conducting material and the device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 3, 1997
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Nobuyuki Okuda, Takashi Uemura, Yoshinobu Ueba, Koji Tada, Kengo Ohkura, Hirokazu Kugai
  • Patent number: 5589281
    Abstract: A stabilized carbon cluster conducting material comprising (i) a core comprising a conducting or superconducting carbon cluster and (ii) a sheath covering the core; a device comprising a substrate having thereon a film of a conducting or superconducting carbon cluster covered with a protective film capable of substantially preventing permeation of oxygen and water in the atmosphere; and processes for producing the stabilized carbon cluster conducting material and the device.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: December 31, 1996
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Nobuyuki Okuda, Takashi Uemura, Yoshinobu Ueba, Koji Tada, Kengo Ohkura, Hirokazu Kugai
  • Patent number: 4701305
    Abstract: A device for sampling blood and measuring erythrocyte sedimentation rate. The device comprises a tube with one end closed, a blood sampling portion on an opened end of the tube and an erythrocyte sedimentation rate measuring portion extending from the blood sampling portion. A stopper is located on the open end of said tube, and may be pierced with a blood drawing needle. Finally a partition member is located within said tube and extends substantially over the entire length of said tube. Blood is directly sampled into the device and the device mixes the sampled blood with a solution of an anticoagulant with a high efficiency in the device. Accordingly, measurement of erythrocyte sedimentation rate can be performed quickly and easily.
    Type: Grant
    Filed: June 25, 1986
    Date of Patent: October 20, 1987
    Assignee: Nissho Corporation
    Inventors: Hiroyuki Hattori, Takashi Uemura, Toshio Yamauchi