Patents by Inventor Kazuo Umemura

Kazuo Umemura 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: 20090306233
    Abstract: To provide an ion exchange membrane for alkaline chloride electrolysis having a low electric resistance and further having a sufficient mechanical strength. To employ an ion exchange membrane containing a polymer having units (U1). Q1, Q2=a perfluoroalkylene group or the like; Rf1, Rf2=a perfluoroalkyl group or the like; X1=an oxygen atom or the like; a=0 or the like; Y1=a fluorine atom or the like; r=0 or 1; and M=a hydrogen atom or an alkali metal atom.
    Type: Application
    Filed: July 16, 2009
    Publication date: December 10, 2009
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kazuo UMEMURA, Hiromitsu KUSANO, Tetsuji SHIMOHIRA, Susumu SAITO
  • Publication number: 20090270846
    Abstract: The position of a metal marker 5 relative to an optical fiber 6 is fixed, and the metal marker 5 can be moved up close to a target site such as a thrombus. It is preferable that the position, in an optical fiber longitudinal direction, of a front-end face of the optical fiber 6 is coincident with the position, in an optical fiber longitudinal direction, of a front-end face of the metal marker 5. More specifically, since the distance between the target site and the front end of the optical fiber 6 is known by radiography, it becomes unnecessary to use a large quantity of contrast agent and irradiate a laser beam depending on skill and intuition, and therefore an effective laser beam irradiation becomes possible.
    Type: Application
    Filed: October 25, 2006
    Publication date: October 29, 2009
    Applicants: Teiji Nakayama, Hamamatsu Photonics K.K.
    Inventors: Hiroyuki Okada, Teiji Nakayama, Kazuo Umemura, Daisuke Yamashita, Yutaka Yamashita, Katsuhiro Kobayashi
  • Publication number: 20080254043
    Abstract: The present invention relates to a pharmaceutical composition which includes a tissue factor inhibitor, which is administered after the onset of a thromboembolic ischemic disease, particularly after thrombus or embolus formation; a secondary thrombus formation inhibitor which includes a tissue factor inhibitor, which is administered after primary thrombus formation; a blood flow reduction inhibitor which includes a tissue factor inhibitor to be administered after thrombus formation or embolism formation; and a method of suppressing secondary thrombus formation by inhibiting tissue factor function following formation of a primary thrombus.
    Type: Application
    Filed: February 7, 2006
    Publication date: October 16, 2008
    Inventors: Kazuo Umemura, Atsushi Muto, Sachiya Ikeda
  • Publication number: 20070161718
    Abstract: To provide an ion exchange membrane capable of stably developing a high current efficiency in electrolysis of an aqueous alkali chloride solution containing organic substances and thereby capable of producing an aqueous alkali hydroxide solution stably with high efficiency. A fluorinated ion exchange membrane containing at least one layer of a fluoropolymer having a pendant side chain structure having a carboxylic acid group bonded to the polymer main chain by means of a connecting chain, wherein the connecting chain up to the carboxylic acid group in the pendant side chain is a continuous chain composed of from 6 to 8 atoms, and the connecting chain has a diether structure with no branched structure.
    Type: Application
    Filed: February 1, 2007
    Publication date: July 12, 2007
    Applicant: ASAHI GLASS CO., LTD.
    Inventors: Kazuo Umemura, Tetsuji Shimohira
  • Patent number: 6338784
    Abstract: An apparatus for producing deionized water, comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged to form demineralizing compartments and concentrating compartments and having ion exchangers accommodated in the demineralizing compartments, and designed to conduct an electric current while supplying water to be treated to the demineralizing compartments, wherein a spacer is arranged in each concentrating compartment to maintain the thickness of the concentrating compartment, and the cation exchange membranes or the anion exchange membranes are incorporated in their dry state in the electrodialyzer, whereby water is supplied to the electrodialyzer, while each ion exchange membrane is brought in contact with the spacer by a pressure from the demineralizing compartment side.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: January 15, 2002
    Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, Incorporated
    Inventors: Ichiro Terada, Hiroshi Toda, Kazuo Umemura, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
  • Patent number: 6228240
    Abstract: An apparatus for producing deionized water consisting essentially of an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between a cathode and an anode to form demineralizing compartments and concentrating compartments, and ion exchangers accommodated in the demineralizing compartments, wherein a pressure of from 0.1 to 20 kg/cm2 is exerted between the ion exchangers accommodated in the demineralizing compartments and the cation exchange membranes and anion exchange membranes defining the demineralizing compartments.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: May 8, 2001
    Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, Incorporated
    Inventors: Ichiro Terada, Hiroshi Toda, Junjiro Iwamoto, Kazuo Umemura, Ken Komatsu, Tohru Hoshi, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
  • Patent number: 6071397
    Abstract: An apparatus for producing deionized water comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between a cathode and an anode to form demineralizing compartments and concentrating compartments, and ion exchange resin particles packed in the demineralizing compartments, wherein the ion exchange resin particles are a mixture of at least two groups of ion exchange resin particles having a particle size distribution such that particles having particle sizes of from 75 to 125% of the average particle size, are at least 85 wt % of the total amount, and the average particle size of a group of ion exchange resin particles having the maximum average particle size, is at least 1.5 times the average particle size of a group of ion exchange resin particles having the minimum average particle size.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 6, 2000
    Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, Incorporated
    Inventors: Ichiro Terada, Kazuo Umemura, Junjiro Iwamoto, Ken Komatsu, Mark Philip Huehnergard
  • Patent number: 6028094
    Abstract: The present invention is to provide an agent for the prevention and depression of dry coughing caused by angiotensin converting enzyme inhibitors which comprises a thromboxane synthetase inhibitor or thromboxane receptor antagonist as the active ingredient. Administering the drug is effective in preventing and depressing dry coughing caused by angiotensin converting enzyme inhibitors. For example, the use of the drug in combination with ozagrel hydrochloride was found to be effective in significantly dry coughing in hypertonic patients suffering from dry coughing attributable to the administration of captopril.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: February 22, 2000
    Assignees: Kissei Pharmaceutical Co., Ltd., Ono Pharmaceutical Co., Ltd.
    Inventors: Mitsuyoshi Nakashima, Kazuo Umemura
  • Patent number: 5961805
    Abstract: An apparatus for producing deionized water consisting essentially of an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between a cathode and an anode to form demineralizing compartments and concentrating compartments, and ion exchangers accommodated in the demineralizing compartments, wherein a pressure of from 0.1 to 20 kg/cm.sup.2 is exerted between the ion exchangers accommodated in the demineralizing compartments and the cation exchange membranes and anion exchange membranes defining the demineralizing compartments.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: October 5, 1999
    Assignees: Ashai Glass Company Ltd., Glegg Water Conditioning, Incorporated
    Inventors: Ichiro Terada, Hiroshi Toda, Junjiro Iwamoto, Kazuo Umemura, Ken Komatsu, Tohru Hoshi, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
  • Patent number: 5948826
    Abstract: A heterogeneous ion exchange membrane comprising an ion exchange resin and a binder polymer, wherein the binder polymer is a polymer containing at least a mixture comprising low density polyethylene and ethylene-propylene rubber or ethylene-propylene-diene rubber.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: September 7, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ichiro Terada, Yoshiaki Higuchi, Haruhisa Miyake, Kazuo Umemura
  • Patent number: 5759373
    Abstract: A porous ion exchanger which has a porous structure having ion exchange resin particles bound by a binder polymer, and which has a water permeability of at least 30 kg.multidot.cm.sup.-1 .multidot.hr.sup.-1 under a pressure of 0.35 kg/cm.sup.2.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: June 2, 1998
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ichiro Terada, Iku Saito, Haruhisa Miyake, Ken Komatsu, Kazuo Umemura, Junjiro Iwamoto
  • Patent number: 5401408
    Abstract: A bipolar membrane comprising a cation exchange membrane, an anion exchange membrane and an inorganic ion exchanger layer having a thickness of from 0.01 to 100 .mu.m present at the interface between the cation exchange membrane and the anion exchange membrane.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: March 28, 1995
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuo Umemura, Tutomu Naganuma, Haruhisa Miyake
  • Patent number: 5397445
    Abstract: A method for producing an acid and/or an alkali metal hydroxide, from a neutral salt by electrodialysis employing a bipolar membrane and an anion exchange membrane and/or a cation exchange membrane, wherein as the anion exchange membrane, an anion exchange membrane made of a polymer having repeating units of the formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 is a hydrogen atom or an alkyl group having up to two carbon atoms, and having an ion-exchange capacity of from 1 to 5 meq/g dry resin, is used.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: March 14, 1995
    Assignee: Asahi Glass Company Ltd.
    Inventors: Kazuo Umemura, Tsutomu Naganuma, Haruhisa Miyake
  • Patent number: 5258393
    Abstract: The invention relates to a method for improving inner ear microcirculation, which comprises administering an effective amount of a dihydropyridine compound of the general formula: ##STR1## wherein R.sup.1 is a nitrophenyl group; and R.sup.2, R.sup.3 and R.sup.4 each is a lower alkyl group, or a pharmaceutically acceptable salt thereof to a human or animal.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 2, 1993
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Mitsuyoshi Nakashima, Toshihiko Uematsu, Kazuo Umemura, Yutaka Kohno
  • Patent number: 4986525
    Abstract: A sheet feed device for feeding a sheet-like material includes a feed roller disposed upstream with respect to a sheet feeding direction for feeding the sheet-like material and main and auxiliary roller pair disposed downstream with respect thereto for further feeding the sheet-like material fed out by the feed roller. At the start of feeding the sheet-like material, both the feed roller and the main and auxiliary roller pair are rotated, and after the sheet-like material is fed a certain distance and grasped by the main and auxiliary roller pair, only the main and auxiliary roller pair is rotated, whereby a load imposed to a motor for rotating both the feed roller and main and auxiliary roller pair is lessened.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: January 22, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuhiko Takagi, Rikuo Sonoda, Kazuo Umemura
  • Patent number: 4966358
    Abstract: A feeding apparatus for a printer wherein an uppermost sheet of a sheet stack placed on a support member is delivered by a feed roll in contact with the uppermost sheet, through a clearance formed between a presser member which engages the upper surface of the uppermost sheet, and an elastic member which is disposed adjacent to the presser member for abutting contact with the edges of the sheet stack. The apparatus includes a support mechanism for supporting the presser and elastic members such that the two members are movable toward and away from each other, and a biasing spring for biasing the two members toward each other. The relative position of the presser and elastic members and the amount of the clearance therebetween during a normal sheet feeding operation are determined by a stopper device.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: October 30, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takeshi Yokoi, Hiroyasu Kuragairi, Shigeo Nakamura, Tamotu Kato, Kazuo Umemura, Hiroshi Yamanaka