Patents by Inventor Mutsuhiro Maeda

Mutsuhiro Maeda 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: 8092939
    Abstract: A virtually lead additive-free but highly reliable and practical anode zinc can for a battery with improved process-ability and corrosion resistance. A manganese dry battery comprising such a zinc can. A manufacturing method for making the zinc can and a battery.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: January 10, 2012
    Assignees: Toshiba Consumer Electronics Holdings Corporation, Kabushiki Kaisha Toshiba, Toshiba Home Appliances Corporation
    Inventors: Kazunari Kobayashi, Mutsuhiro Maeda
  • Patent number: 7874346
    Abstract: A method for manufacturing non lead added anode zinc material for manganese dry batteries comprising compounding a zinc alloy by melting zinc, 0.1 mass % or more and 0.7 mass % or less of bismuth and other impurity elements inevitably contained in zinc in a melting furnace; casting the compounded molten zinc alloy to a molded material in the form of a band or in the form of a bar; rolling the molded material in band form to form a zinc alloy sheet; and punching the rolled zinc alloy sheet in a designated thickness into a designated shape.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: January 25, 2011
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Mutsuhiro Maeda, Kazunari Kobayashi, Yuk Fai Lau
  • Patent number: 7829217
    Abstract: Presented is a virtually lead additive-free but highly reliable and practical anode zinc can for battery with improved process-ability and corrosion resistance, and a manganese dry battery made by using such a zinc can. Disclosed is a manufacturing method of a proposed zinc can and a battery along with engineering clues for material evaluation and processing with regard to metallographic aspect.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: November 9, 2010
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Kazunari Kobayashi, Mutsuhiro Maeda
  • Publication number: 20100068618
    Abstract: A manganese dry battery made from a virtually lead additive-free but highly reliable and practical anode zinc can that has improved process-ability and corrosion resistance.
    Type: Application
    Filed: November 18, 2009
    Publication date: March 18, 2010
    Applicant: TOSHIBA BATTERY CO., LTD.
    Inventors: Kazunari KOBAYASHI, Yoshiki FURUKOSHI, Mutsuhiro MAEDA
  • Publication number: 20100055561
    Abstract: A virtually lead additive-free but highly reliable and practical anode zinc can for a battery with improved process-ability and corrosion resistance. A manganese dry battery comprising such a zinc can. A manufacturing method for making the zinc can and a battery.
    Type: Application
    Filed: November 12, 2009
    Publication date: March 4, 2010
    Applicant: TOSHIBA BATTERY CO., LTD.
    Inventors: Kazunari KOBAYASHI, Mutsuhiro Maeda
  • Publication number: 20080029189
    Abstract: Presented is methods to make high quality anode zinc pellets without adding lead by continuous or non-continuous casting and rolling method in high productivity. Disclosed is full details of material and process engineering as regards alloy compound, process machinery or equipment, and test and evaluation method addressing metallographic aspect in addition to chemical factors.
    Type: Application
    Filed: June 6, 2005
    Publication date: February 7, 2008
    Applicants: TOSHIBA BATTERY CO.,LTD., Advanced Zone Ltd.
    Inventor: Mutsuhiro MAEDA
  • Publication number: 20070190410
    Abstract: This invention presents an anode zinc can for battery with excellent process-ability and corrosion resistance without adding lead to zinc, and a manganese dry battery made by using such a can. Disclosed is a manufacturing method of the proposed can along with technical clues including material composition, optimum hardness, process temperature, and crystal grains with regard to metallographic aspect.
    Type: Application
    Filed: December 24, 2004
    Publication date: August 16, 2007
    Applicant: TOSHIBA BATTERY CO., LTD.
    Inventors: Kazunari Kobayashi, Yoshiki Furukoshi, Mutsuhiro Maeda
  • Publication number: 20070134553
    Abstract: Presented is a virtually lead additive-free but highly reliable and practical anode active material with improved process-ability and corrosion resistance and a manganese dry battery made from that material. And, disclosed is a variation of manufacturing method of the material aforementioned in material composition of bismuth and others to add to zinc instead of lead together with engineering matters involved, and a manufacturing method of a manganese dry batteries with use of the proposed material.
    Type: Application
    Filed: November 5, 2004
    Publication date: June 14, 2007
    Applicant: Toshiba Battery Co., LTD.
    Inventors: Kazunari Kobayashi, Mutsuhiro Maeda, Yoshiki Furukoshi
  • Publication number: 20070111096
    Abstract: Presented is a virtually lead additive-free but highly reliable and practical anode zinc can for battery with improved process-ability and corrosion resistance, and a manganese dry battery made by using such a zinc can. Disclosed is a manufacturing method of a proposed zinc can and a battery along with engineering clues for material evaluation and processing with regard to metallographic aspect.
    Type: Application
    Filed: December 24, 2004
    Publication date: May 17, 2007
    Applicant: TOSHIBA BATTERY CO., LTD.
    Inventors: Kazunari Kobayashi, Mutsuhiro Maeda
  • Patent number: 6146789
    Abstract: In a battery in which a metallic battery case for accommodating electricity-generating elements also serves as an electrode, a visible-light or near-infrared-light curing resin is used for providing a coating to insulate an end face and a peripheral edge portion of an opening portion of the battery case or a gap between a positive electrode and a negative electrode. The visible-light or near-infrared-light curing resin excels in a depth-curing characteristic as compared with a conventional ultraviolet curing resin, and cures well even up to a portion such as an insulating seal of a battery where a light-receiving port is light and the light is difficult to reach. Hence, the visible-light or near-infrared-light curing resin is prevented from becoming peeled off and provides a reliable insulting characteristic.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: November 14, 2000
    Assignee: Three Bond Co., Ltd.
    Inventors: Kenichi Horie, Katsuhiko Kishi, Teiji Okayama, Mutsuhiro Maeda