Patents by Inventor Kazuhiro Ishikawa

Kazuhiro Ishikawa 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).

  • Publication number: 20070068383
    Abstract: In a multiphase hydrogen permeation alloy comprising a phase in charge of hydrogen permeation and a phase in charge of hydrogen embrittlement resistance, a structure in which the phase in charge of hydrogen permeability is continuously interconnected and in which more preferably the growth direction of the aforementioned phase in charge of hydrogen permeation lies aligned in the thickness direction of the permeation membrane. As the hydrogen permeation alloy, an Nb—Ti—Co alloy is exemplified, wherein the phase in charge of hydrogen permeability is made of an (Nb, Ti) phase and the aforementioned phase in charge of hydrogen embrittlement resistance is made of a CoTi phase. By virtue of the fact that the growth direction of the phase in charge of hydrogen permeation lies aligned in the thickness direction of the permeation membrane, the hydrogen permeation pass length becomes short to give further improved hydrogen permeation property.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 29, 2007
    Inventors: Tsuyoshi Sasaki, Toshiki Kabutomori, Kiyoshi Aoki, Kazuhiro Ishikawa
  • Publication number: 20070056660
    Abstract: A (Nb, Ti) phase in an Nb—Ti—Co alloy is composed of a granular structure. The Nb—Ti—Co alloy is preferably subjected to heat treatment at 800° C. or more so that the eutectic structure in the casted state can be changed to a granular structure. The Nb—Ti—Co alloy used there is preferably NbxTi(100-x-y)Coy, (x?70, 20?y?50 (mol %)). By properly predetermining the heating temperature and time, the resulting alloy exhibits improved hydrogen permeability in combination with a good hydrogen embrittlement resistance characteristic in the CoTi phase, making it possible to provide a practical hydrogen permeable membrane having an advantageously high performance.
    Type: Application
    Filed: March 28, 2006
    Publication date: March 15, 2007
    Inventors: Kiyoshi Aoki, Kazuhiro Ishikawa, Tsuyoshi Sasaki, Toshiki Kabutomori
  • Publication number: 20070048171
    Abstract: An Nb—Ti—Co alloy having both good hydrogen permeability and good hydrogen embrittlement resistance comprises one of Fe, Cu or Mn as a fourth element, incorporating from 1 to 14 mol %. The content of Mn, if any, is preferably from 1 to 9 mol %. The desired hydrogen permeability can be attained by the (Nb, Ti) phase and the desired hydrogen embrittlement resistance can be attained by the CoTi phase, making is possible to obtain excellent hydrogen permeability and excellent hydrogen embrittlement resistance. None of Fe, Cu or Mn can impair these properties. Fe, Cu or Mn can replace some of the Co elements. Fe, Cu or Mn enhances the workability of the alloy.
    Type: Application
    Filed: March 28, 2006
    Publication date: March 1, 2007
    Inventors: Kiyoshi Aoki, Kazuhiro Ishikawa, Tsuyoshi Sasaki, Toshiki Kabutomori
  • Publication number: 20060281064
    Abstract: In an image communication system for compositing and generating an image for enhancing the communication, a composite image generator in a communication terminal analyzes voice data and image data, and an analyzer analyzes voice data to detect an emotion parameter. Basic emotion data are generated by a movement controller, an emotion movement pattern storage and a basic emotion generator, based on the emotion parameter. An expression compositor composites the basic emotion data with expression data, extracted from image data, to generate composite expression data. An image compositor composites the composite expression data with character data to generate a composite character image.
    Type: Application
    Filed: May 24, 2006
    Publication date: December 14, 2006
    Applicant: Oki Electric Industry Co., Ltd.
    Inventors: Noriyuki Sato, Kazuhiro Ishikawa, Mieko Tshikawa, Seiji Inoue
  • Publication number: 20050217480
    Abstract: An Ni—Ti—Nb based multiple phase alloy consists of a combined phase which comprises a phase for the hydrogen permeability and a phase for the resistance to hydrogen embrittlement. The alloy has a composition satisfying the formula: NixTiyNb(100-x-y) in which x=25˜45 mol % and y=25˜55 mol %. A metal membrane for hydrogen separation-purification is prepared using the alloy material. The alloy material is prepared by blending Ni, Ti and Nb and melting the blend. The metal membrane permits the hydrogen separation-purification and thus the resulting purified hydrogen gas can be used as a fuel and can be applied to fields of production of semiconductors.
    Type: Application
    Filed: February 17, 2005
    Publication date: October 6, 2005
    Inventors: Kiyoshi Aoki, Takeshi Matsuda, Kazuhiro Ishikawa
  • Publication number: 20030190552
    Abstract: The present invention provides an optical recording medium containing a phthalocyanine compound in its recording layer and, particularly, a CD-R in which the color of the disk as viewed from the substrate side disappears apparently as if the colorant-containing recording layer were not present Disclosed is an optical recording medium produced by laminating a recording layer, a reflecting layer and a protective layer on the transparent substrate, the recording layer comprising a phthalocyanine compound and a reddish colorant.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 9, 2003
    Applicant: TOYO INK MANUFACTURING CO., LTD.
    Inventors: Tetsuya Kaneko, Kazuhiro Ishikawa, Makoto Sakamoto
  • Patent number: 6420662
    Abstract: A power source (ground) line, which would have been formed with a broad conducting path is divided into multiple fine-line interconnections. A short-circuiting joint is formed to connect between the divided, multiple fine-line interconnections.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: July 16, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kazuhiro Ishikawa
  • Publication number: 20020015858
    Abstract: The present invention provides an optical recording medium containing a phthalocyanine compound in its recording layer and, particularly, a CD-R in which the color of the disk as viewed from the substrate side disappears apparently as if the colorant-containing recording layer were not present. Disclosed is an optical recording medium produced by laminating a recording layer, a reflecting layer and a protective layer on the transparent substrate, the recording layer comprising a phthalocyanine compound and a reddish colorant.
    Type: Application
    Filed: February 7, 2001
    Publication date: February 7, 2002
    Applicant: TOYO INK MFG. CO., LTD.
    Inventors: Tetsuya Kaneko, Kazuhiro Ishikawa, Makoto Sakamoto
  • Patent number: 5812045
    Abstract: In an inverter transformer comprising a primary winding and secondary winding which are wound on a first and a second spool respectively and disposed in juxtaposing relationship.with each other with the axes of the first and second spools being substantially parallel to each other, and a pair of cores which are disposed in abutting relationship to each other so as to define a closed magnetic path, the primary and secondary windings being electromagnetically coupled to each other through the pair of cores, at least one of said cores being provided with a protuberance which is disposed in opposing relationship to the other core, with a small distance maintained therebetween, the protuberance being interposed between the primary winding and the secondary winding, the arrangement is made such that secondary-side minimum sectional area of that portion of the cores through which magnetic flux is permitted to pass, is given substantially by S.sub.1 K, where S.sub.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: September 22, 1998
    Assignee: Toko, Inc.
    Inventors: Kazuhiro Ishikawa, Shigetoshi Watanabe, Minoru Nakano, Koji Ito
  • Patent number: 5588523
    Abstract: The rotation of transmitting rollers can be transmitted to carrier rollers by making the transmission rollers contact with the carrier rollers paired in the front and rear direction by moving bearing member toward the upper side, whereas the rotation of the transmission rollers can be prevented from transmission to the carrier rollers by separating the transmission rollers from the carrier rollers by moving the bearing members to the lower side.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: December 31, 1996
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Shoji Hara, Takenori Yanai, Kazuhiro Ishikawa
  • Patent number: 4491382
    Abstract: A resilient contact member to be installed in a jack for use in conjunction with a pin-plug comprising a fixed leg portion to be fixed to an inner wall of a housing of the jack, a movable leg portion having a portion which is to be engaged with a pin portion of the pin-plug inserted into the jack to make an electrical connection between the jack and pin-plug, a substantially U-shaped portion for connecting the fixed and movable leg portions to each other at their one ends, said fixed and movable leg portions extending in parallel with each other. The fixed and movable leg portions and U-shaped portion are all formed integrally with each other by punching a thin metal plate. The contact member further comprises a reinforcing member which engaging with the movable leg portion. The movable leg portion can be moved toward the fixed leg portion in a resilient manner against the resilient force of the movable leg portion and the reinforcing member.
    Type: Grant
    Filed: February 17, 1984
    Date of Patent: January 1, 1985
    Assignee: Iizuka Electric Industry Company Ltd.
    Inventor: Kazuhiro Ishikawa
  • Patent number: 4407924
    Abstract: A complex system for developing electrostatic images, and particularly a toner which comprises 100 parts by weight of a resin and for instance 0.5 to 5 parts by weight of the complex system, such as a metal complex composed of, e.g. a metal such as Cr, Co or Fe, and both an aromatic dicarboxylic acid which is capable of forming an acid anhydride or of a substituted such aromatic dicarboxylic acid, and an aromatic hydroxycarboxylic acid capable of forming a complex compound or a derivative thereof, e.g. a substituted such aromatic hydroxycarboxylic acid.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: October 4, 1983
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Hisashi Senshu, Kazuhiro Ishikawa, Yukihiko Ishida, Yoji Kawagishi
  • Patent number: 4404271
    Abstract: A complex system for developing electrostatic images, and particularly a toner which contains a metal complex represented by the formula ##STR1## wherein a or b is a benzene ring moiety or cyclohexene ring moiety with or without C.sub.4 -C.sub.9 alkyl substituents, R.sub.1 and R.sub.2 are each hydrogen, C.sub.4 -C.sub.9 alkyl or a substituent which may be in the form of a benzene ring moiety or cyclohexene ring moiety with or without C.sub.4 -C.sub.9 alkyl substituents, provided that both R.sub.1 and R.sub.2 are not hydrogen at the same time, Me is Cr, Co or Fe, and X is a counter ion such as hydrogen or sodium. The metal complex has good compatibility with the resin component of the toner and is substantially colorless, imparting outstanding durability to the toner.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: September 13, 1983
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Yoji Kawagishi, Yukihiko Ishida, Kazuhiro Ishikawa
  • Patent number: 4403027
    Abstract: A complex system for developing electrostatic images, and particularly a toner which comprises 100 parts by weight of a resin and for instance 0.5 to 5 parts by weight of the complex system, such as a metal complex of an aromatic dicarboxylic acid which is capable of forming an acid anhydride or of a substituted such aromatic dicarboxylic acid.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: September 6, 1983
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Kazuhiro Ishikawa, Yoji Kawagishi, Yukihiko Ishida
  • Patent number: 4266845
    Abstract: A resilient contact member to be installed in a jack for use in conjunction with a pin-plug comprising a fixed leg portion to be fixed to an inner wall of a housing of the jack, a movable leg portion having a portion which is to be engaged with a pin portion of the pin-plug inserted into the jack to make an electrical connection between the jack and pin-plug, a substantially U-shaped portion for connecting the fixed and movable leg portions to each other at their one ends, said fixed and movable leg portions extending in parallel with each other, and a projection integrally formed with the fixed leg portion or the movable leg portion and extending toward the movable leg portion or the fixed leg portion. The projection has such a length that the movable leg portion could not be displaced beyond an elastic limit of the U-shaped portion. The fixed and movable leg portions, U-shaped portion and projection are all formed integrally with each other by punching a thin metal plate.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: May 12, 1981
    Assignee: Iizuka Electric Industry Company Limited
    Inventor: Kazuhiro Ishikawa
  • Patent number: 4196328
    Abstract: An electric switch comprising a plurality of electrically conductive resilient strips secured to an electrically insulating base member and a supporting member for supporting the strips in such a manner that these strips extend substantially in parallel with each other at a given distance and store resilient force in a direction opposite to that of an operational force. An electrical contact is made by displacing one of the resilient strips toward the other strip against the stored resilient force. In a preferred embodiment prior to securing the strips to the base member the strips have been bent in the direction opposite to the acting direction of the operational force.
    Type: Grant
    Filed: August 1, 1978
    Date of Patent: April 1, 1980
    Assignee: Iizuka Electric Industry Company Limited
    Inventor: Kazuhiro Ishikawa