Patents by Inventor Minoru Umeda

Minoru Umeda 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: 9954239
    Abstract: There are provided: a solid polymer power generation or electrolysis method that does not require injection of energy from the outside and maintenance of a high temperature, and is capable of converting carbon dioxide to a useful hydrocarbon while producing energy, controlling the production amounts of the hydrocarbons or the like and a ratio sorted by kind of the hydrocarbons, improving utilization efficiency of a product, and simplifying equipment for separation and recovery; and a system for implementing the solid polymer power generation or electrolysis method. Carbon dioxide is supplied to the side of one electrode 111 of a reactor 110 having a membrane electrode assembly 113, hydrogen is supplied to the side of the other electrode 112, and the amounts of the hydrocarbons produced per unit time and the ratio sorted by kind of the hydrocarbons are changed by controlling a power generation voltage of the reactor 110.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: April 24, 2018
    Assignee: JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Yoshitsugu Sone, Masato Sakurai, Asuka Shima, Minoru Umeda, Tetsuya Nakabeppu, Ryota Shinozaki, Toru Kinoshita
  • Publication number: 20160226090
    Abstract: There are provided: a solid polymer power generation or electrolysis method that does not require injection of energy from the outside and maintenance of a high temperature, and is capable of converting carbon dioxide to a useful hydrocarbon while producing energy, controlling the production amounts of the hydrocarbons or the like and a ratio sorted by kind of the hydrocarbons, improving utilization efficiency of a product, and simplifying equipment for separation and recovery; and a system for implementing the solid polymer power generation or electrolysis method. Carbon dioxide is supplied to the side of one electrode 111 of a reactor 110 having a membrane electrode assembly 113, hydrogen is supplied to the side of the other electrode 112, and the amounts of the hydrocarbons produced per unit time and the ratio sorted by kind of the hydrocarbons are changed by controlling a power generation voltage of the reactor 110.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Yoshitsugu Sone, Masato Sakurai, Asuka Shima, Minoru Umeda, Tetsuya Nakabeppu, Ryota Shinozaki, Toru Kinoshita
  • Patent number: 8586270
    Abstract: An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer thereon, wherein the photoconductive layer contains a diazapentadiene derivative represented by general formula (1): where “X” represents general formula (a), (b) or (c); “R1” and “R2” each represent substituted or unsubstituted alkyl group or aromatic hydrocarbon group, and may be the same or different; “R1” and “R2” may be joined together via “Y” to form a ring; “Y” represents single bond, oxygen atom, —CH2CH2—, or —CH?CH—, where “R3” represents substituted or unsubstituted alkyl group, aromatic hydrocarbon group, alkoxy group, alkoxycarbonyl group, or halogen group; “R4” represents substituted or unsubstituted alkyl or aromatic hydrocarbon group; “n” represents integer ranging from 0 to 4; and when “n” is integer of 2 to 4, “R3” may be the same or different.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 19, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryota Arai, Tomoyuki Shimada, Minoru Umeda
  • Publication number: 20120251934
    Abstract: An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer thereon, wherein the photoconductive layer contains a diazapentadiene derivative represented by general formula (1): where “X” represents general formula (a), (b) or (c); “R1” and “R2” each represent substituted or unsubstituted alkyl group or aromatic hydrocarbon group, and may be the same or different; “R1” and “R2” may be joined together via “Y” to form a ring; “Y” represents single bond, oxygen atom, —CH2CH2—, or —CH?CH—, where “R3” represents substituted or unsubstituted alkyl group, aromatic hydrocarbon group, alkoxy group, alkoxycarbonyl group, or halogen group; “R4” represents substituted or unsubstituted alkyl or aromatic hydrocarbon group; “n” represents integer ranging from 0 to 4; and when “n” is integer of 2 to 4, “R3” may be the same or different.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Inventors: Ryota ARAI, Tomoyuki SHIMADA, Minoru UMEDA
  • Patent number: 7972743
    Abstract: A membrane-electrode assembly (MEA) 1 has a solid polymer electrolyte membrane 2. The membrane 2 has ion-conductive domains 3 and non-ion-conductive domains 4 and an electrode catalyst 5. The electrode catalyst 5 is present selectively on surface sites of the solid polymer electrolyte membrane 2 which corresponds to the ion-conductive domains 3 rather than surface sites of the membrane 2 which corresponds to the non-ion-conductive domains 4. A spray liquid containing the electrode catalyst and a solvent is applied onto a surface of the membrane 2 by electrostatic spray deposition to selectively adhere the electrode catalyst 5 on the surface sites of the membrane 2 which corresponds to the ion-conductive domains 3. The membrane 2 is preferably subjected to a hydrophilization treatment before being sprayed with the spray liquid.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: July 5, 2011
    Assignee: Nagaoka University of Technology
    Inventors: Minoru Umeda, Akifumi Yamada, Isamu Uchida
  • Patent number: 7960070
    Abstract: An electrocatalyst for ethanol oxidization includes an elemental mixture containing platinum and ruthenium and at least one element, wherein the foregoing at least one element is selected from the group of tungsten, tin, molybdenum, copper, gold, manganese, and vanadium.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 14, 2011
    Assignees: Ricoh Company, Ltd., Tohoku Ricoh Co., Ltd.
    Inventors: Isamu Uchida, Minoru Umeda, Hiroyuki Ojima
  • Publication number: 20100163352
    Abstract: A brake pad backing plate made using powder metallurgy has an inner surface to which a friction material mass is attached and which cooperates with the mass to resist shearing of the mass relative to the plate. Formations can be made on the inner surface that resist shearing of the friction material mass from the backing plate, the mass can have mating formations and the plate can be steam treated for additional benefits.
    Type: Application
    Filed: February 8, 2008
    Publication date: July 1, 2010
    Inventor: Marcos Minoru Umeda
  • Publication number: 20080032885
    Abstract: An electrocatalyst for ethanol oxidization includes an elemental mixture containing platinum and ruthenium and at least one element, wherein the foregoing at least one element is selected from the group of tungsten, tin, molybdenum, copper, gold, manganese, and vanadium.
    Type: Application
    Filed: May 30, 2007
    Publication date: February 7, 2008
    Inventors: Isamu UCHIDA, Minoru Umeda, Hiroyuki Ojima
  • Publication number: 20070003817
    Abstract: A membrane-electrode assembly (MEA) 1 has a solid polymer electrolyte membrane 2. The membrane 2 has ion-conductive domains 3 and non-ion-conductive domains 4 and an electrode catalyst 5. The electrode catalyst 5 is present selectively on surface sites of the solid polymer electrolyte membrane 2 which corresponds to the ion-conductive domains 3 rather than surface sites of the membrane 2 which corresponds to the non-ion-conductive domains 4. A spray liquid containing the electrode catalyst and a solvent is applied onto a surface of the membrane 2 by electrostatic spray deposition to selectively adhere the electrode catalyst 5 on the surface sites of the membrane 2 which corresponds to the ion-conductive domains 3. The membrane 2 is preferably subjected to a hydrophilization treatment before being sprayed with the spray liquid.
    Type: Application
    Filed: February 25, 2005
    Publication date: January 4, 2007
    Inventors: Minoru Umeda, Akifumi Yamada, Isamu Uchida
  • Patent number: 7121826
    Abstract: An orthodontic model has a single block body made of catalyzing acrylic resin with a pair of prism boxes inversely positioned and interconnected by a pair of posterior walls with a window, the prism boxes have covers of the same shape and are provided with perimetral depressions for fitting to the boxes and to reach a welding of edges of each dental arch or the model, and a method of its production is proposed.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: October 17, 2006
    Inventor: Minoru Umeda
  • Publication number: 20060008775
    Abstract: An orthodontic model has a single block body made of catalyzing acrylic resin with a pair of prism boxes inversely positioned and interconnected by a pair of posterior walls with a window, the prism boxes have covers of the same shape and are provided with perimetral depressions for fitting to the boxes and to reach a welding of edges of each dental arch or the model, and a method of its production is proposed.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 12, 2006
    Inventor: Minoru Umeda
  • Publication number: 20040126631
    Abstract: A process for generating power includes (1) generating power from a fuel cell including a fuel electrode, an air electrode and an electrolyte membrane sandwiched therebetween wherein the fuel electrode is made of an alloy including platinum, and a fuel is a liquid including a secondary alcohol, by directly feeding the fuel to the fuel electrode; (2) contacting the air electrode in the fuel cell with an oxidizable material and applying a current from an external electric source between the fuel electrode as negative and the, air electrode as positive, after step (1); and (3) generating power from the fuel cell after step (2).
    Type: Application
    Filed: October 3, 2003
    Publication date: July 1, 2004
    Inventors: Isamu Uchida, Minoru Umeda, Hiroyuki Ojima
  • Patent number: 6590696
    Abstract: An image display medium including a pair of electroconductive layers, at least one of which is light-transmissive and which are opposed each other to form a cell; and a dispersion contained in the cell, wherein the dispersion includes a colored particulate material having at least one of an acidic group and a basic group; a hydrocarbon solvent; a resin soluble in the hydrocarbon solvent and having at least one of a basic group and an acidic group; and a compound having a nonionic polar group, and wherein when the particulate material has an acidic group, the resin has a basic group, and when the particulate material has a basic group, the resin has an acidic group.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: July 8, 2003
    Assignee: Ricoh Company Limited
    Inventors: Masahiro Yanagisawa, Minoru Umeda
  • Patent number: 6521386
    Abstract: An electrophotographic photoreceptor including an electroconductive substrate and a photoreceptive layer, which is formed overlying the substrate, wherein the photoreceptive layer includes a charge carrier generation layer including a charge carrier generation material and a charge carrier transport layer including a charge carrier transport material, and wherein when an electric field of from 2.5×105 V/cm to 5.5×105 V/cm is applied to the charge carrier transport layer, the relationship, tCTL/&mgr;CTL≦1.5×103 V·s/m, is satisfied, wherein tCTL represents a thickness of the charge carrier transport layer and &mgr;CTL represents a charge mobility of the charge carrier transport layer.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: February 18, 2003
    Assignee: Ricoh Company Ltd.
    Inventors: Yohta Sakon, Narihito Kojima, Minoru Umeda, Masao Yoshikawa, Hiroshi Nagame, Ryuta Takeichi, Akiyo Namiki
  • Publication number: 20020027701
    Abstract: An image display medium including a pair of electroconductive layers, at least one of which is light-transmissive and which are opposed each other to form a cell; and a dispersion contained in the cell, wherein the dispersion includes a colored particulate material having at least one of an acidic group and a basic group; a hydrocarbon solvent; a resin soluble in the hydrocarbon solvent and having at least one of a basic group and an acidic group; and a compound having a nonionic polar group, and wherein when the particulate material has an acidic group, the resin has a basic group, and when the particulate material has a basic group, the resin has an acidic group.
    Type: Application
    Filed: June 5, 2001
    Publication date: March 7, 2002
    Applicant: RICOH COMPANY LIMITED
    Inventors: Masahiro Yanagisawa, Minoru Umeda
  • Patent number: 5804343
    Abstract: An electrophotographic photoconductor including an electroconductive support and a photoconductive layer formed thereon, which has at least a charge generation layer containing a charge generating material and a polymeric charge transporting material, and a charge transport layer containing a polymeric charge transporting material.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: September 8, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Umeda, Tatsuya Niimi
  • Patent number: 5749029
    Abstract: In an electrophotographic process using an electrophotographic photoconductor having a photoconductive layer which contains a charge generation material and a charge transport material, the charge transport material being convertible from a neutral state into a charged state during the photoconduction in the photoconductive layer, when light is applied to the photoconductive layer, there is employed at least one type of rays of light selected from type 1 which has a light emission peak, and type 2 and type 3, each of which has a continuous spectrum with a threshold wavelength value, in such a manner that a half-width wavelength range of type 1 does not overlap a peak wavelength or a half-width wavelength range of an absorption peak of the charge transport material in the charged state, and a half value of a threshold wavelength value of each of type 2 or type 3 is beyond the wavelength or a half-width wavelength range of any of extreme end absorption peaks in terms of the wavelength of the absorption light of
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: May 5, 1998
    Assignee: Ricoh Company, Ltd.
    Inventor: Minoru Umeda
  • Patent number: 5677094
    Abstract: An electrophotographic photoconductor is disclosed which includes an electroconductive support, and a photoconductive layer formed thereon and having a charge generation layer and a charge transport layer, wherein the charge generation layer contains a polymeric charge transporting material having an ionization potential of 6.0 eV or less. The photoconductor may include an undercoat layer, an intermediate layer and/or a surface protecting layer, each of which may contain a polymeric charge transporting material. Specific use of the polymeric charge transporting material together with a charge transporting small molecule is also disclosed.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: October 14, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Umeda, Tatsuya Niimi
  • Patent number: 5547790
    Abstract: An electrophotographic photoconductor including an electroconductive support and a photoconductive layer formed thereon, which has at least a charge generation layer containing a charge generating material and a polymeric charge transporting material, and a charge transport layer containing a polymeric charge transporting material.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: August 20, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Umeda, Tatsuya Niimi
  • Patent number: 4863822
    Abstract: An electrophotographic photoconductor is disclosed, which comprises an electroconductive support and a photoconductive layer comprising (i) a charge generation layer and (ii) a charge transport layer formed on the support, in which the charge generation layer comprises a charge generating material and one component selected from the group consisting of an aliphatic alcohol and a crown ether, or the charge transport layer comprises a charge transporting material and one component selected from the group consisting of an aliphatic alcohol, a polyalkylene glycol, a polyalkylene glycol ester, a polyalkylene glycol ether, and a crown ether.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: September 5, 1989
    Assignee: Ricoh Company Ltd.
    Inventors: Toshio Fukagai, Kiyoshi Taniguchi, Katsuichi Ohta, Kayoko Yokoyama, Minoru Umeda