Patents by Inventor Isao Mochida

Isao Mochida 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: 7077877
    Abstract: A non-aqueous electrolyte secondary battery has an electrode plate assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte including a lithium salt and a non-aqueous solvent; and a gas absorbing element that absorbs gas produced in the secondary battery, wetting of the gas absorbing element with the non-aqueous solvent is controlled.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: July 18, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Sumihito Ishida, Shoichiro Watanabe, Isao Mochida, Takashi Takeuchi
  • Patent number: 7041412
    Abstract: In a non-aqueous electrolyte secondary battery having: an electrode plate assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte including a lithium salt and a non-aqueous solvent; and a gas absorbing element that absorbs gas produced in the secondary battery, wetting of the gas absorbing element with the non-aqueous solvent is controlled.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 9, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Sumihito Ishida, Shoichiro Watanabe, Isao Mochida, Takashi Takeuchi
  • Publication number: 20060057054
    Abstract: A carbon nano-fibrous rod 12 is constituted of a hexagonal carbon layer 11 having a central axis extending in one direction, and the carbon nano-fibrous rods 12 are three-dimensionally gathered to form fibrous nanocarbon.
    Type: Application
    Filed: November 21, 2003
    Publication date: March 16, 2006
    Inventors: Yuichi Fujioka, Akinori Yasutake, Toshihiko Setoguchi, Isao Mochida
  • Publication number: 20050155217
    Abstract: A non-aqueous electrolyte secondary battery has an electrode plate assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte including a lithium salt and a non-aqueous solvent; and a gas absorbing element that absorbs gas produced in the secondary battery, wetting of the gas absorbing element with the non-aqueous solvent is controlled.
    Type: Application
    Filed: March 17, 2005
    Publication date: July 21, 2005
    Inventors: Sumihito Ishida, Shoichiro Watanabe, Isao Mochida, Takashi Takeuchi
  • Patent number: 6814948
    Abstract: An active carbon for use in the treatment of exhaust gas can be obtained by heat-treating a starting active carbon fiber derived from polyacrylonitrile, pitch or the like or a starting particulate active carbon in a non-oxidizing atmosphere. The heat-treating temperature is preferably in the range of 600 to 1,200 ° C. for use in the desulfurization of exhaust gas, and in range of 600 to 1,000° C. for use in the denitration of exhaust gas. By using the resulting heat-treated active carbon for the purpose of desulfurization, the sulfur oxide concentration in exhaust gas can be reduced to 5 ppm or below. Moreover, by using the heat-treated active carbon in combination with conventional denitration based on selective catalytic reduction, the nitrogen oxide concentration in exhaust gas can be reduced to 1 ppm or below.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: November 9, 2004
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Osaka Gas Company Limited
    Inventors: Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa, Isao Mochida
  • Publication number: 20030049519
    Abstract: In a non-aqueous electrolyte secondary battery having: an electrode plate assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte including a lithium salt and a non-aqueous solvent; and a gas absorbing element that absorbs gas produced in the secondary battery, wetting of the gas absorbing element with the non-aqueous solvent is controlled.
    Type: Application
    Filed: July 19, 2002
    Publication date: March 13, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Sumihito Ishida, Shoichiro Watanabe, Isao Mochida, Takashi Takeuchi
  • Publication number: 20020132735
    Abstract: This invention relates to a technique for removing nitrogen oxides (NOx) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100° C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200° C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100° C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600. to 1,200° C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.
    Type: Application
    Filed: February 25, 2002
    Publication date: September 19, 2002
    Applicant: OSAKA GAS COMPANY LIMITED
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 6383463
    Abstract: A process for the denitration of combustion exhaust gas from combustion equipment by passing the exhaust gas through an ammonia reduction denitrator, comprises providing a bypass having a low-temperature denitrator installed therein; while the temperature of the exhaust gas is not high enough to allow the ammonia reduction denitrator to function properly, as encountered immediately after starting the combustion equipment, passing the exhaust gas through the bypass to perform the denitration thereof by means of the low-temperature denitrator; when the ammonia reduction denitrator has come to function properly, closing the bypass to perform the denitration of the exhaust gas by means of the ammonia reduction denitrator; and regenerating a catalyst within said low-temperature denitrator while the by-pass is closed.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: May 7, 2002
    Assignees: Mitsubishi Heavy Industries, Ltd., Osaka Gas Company Limited
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Hitoshi Nakamura, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 6228498
    Abstract: Disclosed is a novel structured body of carbon in the form of a particle having electric conductivity comparable with graphite, which has a frustum-formed protrusion formed from a top flat consisting of a single carbon pentagon and a lateral surface consisting of a plurality of carbon hexagons. The structured body of carbon is prepared by a two-stage heat treatment of a carbonaceous material having a carbon pentagon to form a crystalline structure, such as a fullerene compound, in a non-oxidizing atmosphere. The first stage heat treatment is conducted at 800 to 1200° C. to effect complete degradation of the crystalline structure of the starting material into an amorphous state and the second stage heat treatment is conducted at 1800 to 2500° C. to effect re-crystallization but not to cause graphitization.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: May 8, 2001
    Assignee: Japan as Represented by Director General of Agency of Industrial Science and Technology
    Inventors: Kiyoshi Yokogawa, Seiji Fukuyama, Bai An, Masamichi Yoshimura, Isao Mochida, Yozo Korai, Minato Egashira
  • Patent number: 6126864
    Abstract: A novel carbonaceous material having a unique periodical annular electronic surface structure as examined by means of a scanning tunnel microscopy can be obtained by the method comprising the steps of: (a) forming a layer of a carbonaceous material having a curved configuration by the method of vapor-phase deposition of a carbonaceous material; and (b) subjecting the vapor-phase deposited layer of the carbonaceous material to a heat treatment at a temperature of 1500 K or higher in a non-oxidizing atmosphere. The novel carbonaceous material is useful for carbon electrodes of various batteries.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: October 3, 2000
    Assignee: Agency of Industrial Science and Technology
    Inventors: Kiyoshi Yokogawa, Seiji Fukuyama, Bai An, Masamichi Yoshimura, Isao Mochida
  • Patent number: 6127312
    Abstract: This invention relates to a technique for removing nitrogen oxides (NO.sub.x) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100.degree. C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200.degree. C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100.degree. C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200.degree. C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: October 3, 2000
    Assignee: Osaka Gas Company Ltd.
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 6106791
    Abstract: An active carbon for use in the treatment of exhaust gas can be obtained by heat-treating a starting active carbon fiber derived from polyacrylonitrile, pitch or the like or a starting particulate active carbon in a non-oxidizing atmosphere. The heat-treating temperature is preferably in the range of 600 to 1,200.degree. C. for use in the desulfurization of exhaust gas, and in range of 600 to 1,000.degree. C. for use in the denitration of exhaust gas. By using the resulting heat-treated active carbon for the purpose of desulfurization, the sulfur oxide concentration in exhaust gas can be reduced to 5 ppm or below. Moreover, by using the heat-treated active carbon in combination with conventional denitration based on selective catalytic reduction, the nitrogen oxide concentration in exhaust gas can be reduced to 1 ppm or below.
    Type: Grant
    Filed: December 24, 1998
    Date of Patent: August 22, 2000
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Osaka Gas Company Limited
    Inventors: Isao Mochida, Akinori Yasutake, Toshihiko Setoguchi, Norihisa Kobayashi, Takahiro Kasuh, Masaaki Yoshikawa
  • Patent number: 5609800
    Abstract: Self-adhesive carbonaceous grains for use in the manufacture of high-density and high-strength carbon artifacts containing 0.5-1.5 wt % of a quinoline-soluble but pyridine-insoluble component and at least 97 wt % of a quinoline-insoluble component and which are prepared by heat-treating in a nonoxidizing atmosphere a mesophase pitch that is obtained by polymerizing condensed polycyclic hydrocarbons or substances containing them in the presence of a superacid consisting of hydrogen fluoride and boron trifluoride. The carbonaceous grains are molded and the mold is baked at a sufficient temperature to achieve its carbonization, with the heating rate being not more than 20.degree. C./h in the temperature range from 400 .degree. to 600.degree. C. In this way, high-density and high-strength carbon artifacts showing a homogeneous fine mosaic texture of optical anisotropy can be efficiently manufactured in high carbon yield.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: March 11, 1997
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Isao Mochida, Ryuji Fujiura, Takashi Kojima, Hitoshi Sakamoto
  • Patent number: 5484520
    Abstract: Self-adhesive carbonaceous grains for use in the manufacture of high-density and high-strength carbon artifacts containing 0.5-1.5 wt % of a quinoline-soluble but pyridine-insoluble component and at least 97 wt % of a quinoline-insoluble component and which are prepared by heat-treating in a nonoxidizing atmosphere a mesophase pitch that is obtained by polymerizing condensed polycyclic hydrocarbons or substances containing them in the presence of a superacid consisting of hydrogen fluoride and boron trifluoride. The carbonaceous grains are molded and the mold is baked at a sufficient temperature to achieve its carbonization, with the heating rate being not more than 20.degree. C./h in the temperature range from 400.degree. to 600.degree. C. In this way, high-density and high-strength carbon artifacts showing a homogeneous fine mosaic texture of optical anisotropy can be efficiently manufactured in high carbon yield.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: January 16, 1996
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Isao Mochida, Ryuji Fujiura, Takashi Kojima, Hitoshi Sakamoto
  • Patent number: 5205888
    Abstract: A process for making carbon fiber reinforced materials which not only have desirable qualities which include high strength, high heat resistance, chemical resistance, wear resistance and lightweightness but also which are produced in a short time and at low cost. The process includes the steps of impregnating a carbon fiber assembly with a melt of mesophase pitch or mixing short carbon fibers with the mesophase pitch, shaping the pitch-impregnated assembly or the pitch/short carbon fiber mixture, and firing the same. The process requires that the mesophase pitch used in the process be almost 100% of an optical anistropic phase as examined under a polarizing microscope; have a softening point of no higher than 350.degree. C. and be capable of being carbonized in a yield of at least 70% when gradually heated to a temperature of about 600.degree. C. in an inert gas atmosphere and then held at that temperature for two hours.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: April 27, 1993
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Isao Mochida, Ryuji Fujiura
  • Patent number: 5182010
    Abstract: Pitch that is obtained from naphthalene derivatives having at least one methyl group and the content of an optically anisotropic phase in which is substantially 100% is disclosed. This mesophase pitch has a H/C atomic ratio of about 0.5-1.0 and an aromatic carbon ratio (fa) of at least about 0.7, contains methylic carbon in an amount of at least about 4% of the total carbon atoms, and has a softening point of 200.degree.-250.degree. C. The pitch contains about 12-20 mole % of molecules having an average molecular weight of less than about 600, about 55-70 mole % of molecules having an average molecular weight of from about 600-1,500 and about 20-30 mole % of molecules having an average molecular weight of higher than about 1,500. Fibers melt spun from this mesophase pitch can be converted to carbon or graphite fibers having high strength and modulus of elasticity by a heat treatment which consists of heating to a temperature of 200.degree.-350.degree. C. in an air atmosphere, then heating to about 1,000.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: January 26, 1993
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Isao Mochida, Yukio Sakai, Hiroyuki Ohtsuka
  • Patent number: 4891126
    Abstract: Pitch that is obtained from a condensed polycyclic aromatic hydrocarbon and the content of an optically anisotropic phase in which is substantially 100% is disclosed. This mesophase pitch has a H/C atomic ratio of 0.5-1.0, contains naphthenic carbon in an amount of at least 7% of the total carbon, and has a softening point of 180.degree.-400.degree. C. Fibers melt-spun from this mesophase pitch can be converted to carbon or graphite fibers having high strength and modulus of elasticity by a heat treatment which consists of heating to a temperature of 250.degree.-300.degree. C. in an air atmosphere, then heating to 1,000.degree. C. or higher in an inert gas atmosphere. Such mesophase pitch is produced by polymerizing a condensed polycyclic aromatic hydrocarbon for 5-300 minutes at a temperature of 180.degree.-400.degree. C. and at a pressure of 5-100 atmospheres in the presence of 0.1-20 moles of HF and 0.05-1 mole of BF.sub.3 per mole of the condensed polycyclic aromatic hydrocarbon.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: January 2, 1990
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Isao Mochida, Yukio Sakai, Hiroyuki Otsuka
  • Patent number: 4789455
    Abstract: A process for producing pitch useful as a starting material for the manufacture of a carbon material is provided. The pitch is produced by polymerizing a condensed nuclear aromatic compound or a material containing the same. The polymerization is carried out in the presence of a hydrogen fluoride/boron trifluoride catalyst system. The condensed nuclear aromatic compounds which may be used in this process are naphthalene, anthracene, phenanthrene, acenaphthene, acenaphthylene, pyrene and mixtures thereof.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: December 6, 1988
    Assignee: Mitsubishi Gas Chemical Co. Inc.
    Inventors: Isao Mochida, Susumu Fujiyama, Yukio Sakai, Hiroyuki Otsuka