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).
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Publication number: 20090306233Abstract: 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: ApplicationFiled: July 16, 2009Publication date: December 10, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kazuo UMEMURA, Hiromitsu KUSANO, Tetsuji SHIMOHIRA, Susumu SAITO
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Publication number: 20090270846Abstract: 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: ApplicationFiled: October 25, 2006Publication date: October 29, 2009Applicants: Teiji Nakayama, Hamamatsu Photonics K.K.Inventors: Hiroyuki Okada, Teiji Nakayama, Kazuo Umemura, Daisuke Yamashita, Yutaka Yamashita, Katsuhiro Kobayashi
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Publication number: 20080254043Abstract: 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: ApplicationFiled: February 7, 2006Publication date: October 16, 2008Inventors: Kazuo Umemura, Atsushi Muto, Sachiya Ikeda
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Publication number: 20070161718Abstract: 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: ApplicationFiled: February 1, 2007Publication date: July 12, 2007Applicant: ASAHI GLASS CO., LTD.Inventors: Kazuo Umemura, Tetsuji Shimohira
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Patent number: 6338784Abstract: 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: GrantFiled: February 26, 1998Date of Patent: January 15, 2002Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, IncorporatedInventors: Ichiro Terada, Hiroshi Toda, Kazuo Umemura, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
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Patent number: 6228240Abstract: 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: GrantFiled: June 23, 1999Date of Patent: May 8, 2001Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, IncorporatedInventors: Ichiro Terada, Hiroshi Toda, Junjiro Iwamoto, Kazuo Umemura, Ken Komatsu, Tohru Hoshi, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
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Patent number: 6071397Abstract: 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: GrantFiled: March 18, 1998Date of Patent: June 6, 2000Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, IncorporatedInventors: Ichiro Terada, Kazuo Umemura, Junjiro Iwamoto, Ken Komatsu, Mark Philip Huehnergard
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Patent number: 6028094Abstract: 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: GrantFiled: June 15, 1998Date of Patent: February 22, 2000Assignees: Kissei Pharmaceutical Co., Ltd., Ono Pharmaceutical Co., Ltd.Inventors: Mitsuyoshi Nakashima, Kazuo Umemura
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Patent number: 5961805Abstract: 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: GrantFiled: November 21, 1997Date of Patent: October 5, 1999Assignees: Ashai Glass Company Ltd., Glegg Water Conditioning, IncorporatedInventors: Ichiro Terada, Hiroshi Toda, Junjiro Iwamoto, Kazuo Umemura, Ken Komatsu, Tohru Hoshi, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
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Patent number: 5948826Abstract: 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: GrantFiled: July 23, 1997Date of Patent: September 7, 1999Assignee: Asahi Glass Company Ltd.Inventors: Ichiro Terada, Yoshiaki Higuchi, Haruhisa Miyake, Kazuo Umemura
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Patent number: 5759373Abstract: 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: GrantFiled: September 19, 1996Date of Patent: June 2, 1998Assignee: Asahi Glass Company Ltd.Inventors: Ichiro Terada, Iku Saito, Haruhisa Miyake, Ken Komatsu, Kazuo Umemura, Junjiro Iwamoto
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Patent number: 5401408Abstract: 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: GrantFiled: December 3, 1993Date of Patent: March 28, 1995Assignee: Asahi Glass Company Ltd.Inventors: Kazuo Umemura, Tutomu Naganuma, Haruhisa Miyake
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Patent number: 5397445Abstract: 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: GrantFiled: January 19, 1994Date of Patent: March 14, 1995Assignee: Asahi Glass Company Ltd.Inventors: Kazuo Umemura, Tsutomu Naganuma, Haruhisa Miyake
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Patent number: 5258393Abstract: 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: GrantFiled: November 27, 1991Date of Patent: November 2, 1993Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Mitsuyoshi Nakashima, Toshihiko Uematsu, Kazuo Umemura, Yutaka Kohno
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Patent number: 4986525Abstract: 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: GrantFiled: January 22, 1990Date of Patent: January 22, 1991Assignee: Brother Kogyo Kabushiki KaishaInventors: Kazuhiko Takagi, Rikuo Sonoda, Kazuo Umemura
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Patent number: 4966358Abstract: 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: GrantFiled: July 20, 1988Date of Patent: October 30, 1990Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeshi Yokoi, Hiroyasu Kuragairi, Shigeo Nakamura, Tamotu Kato, Kazuo Umemura, Hiroshi Yamanaka