Patents by Inventor Taketo Uesugi

Taketo Uesugi 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: 6013379
    Abstract: A coated steel sheet for alkaline dry cell positive electrode cans, comprising a Ni-electroplated steel sheet having a chemical conversion coating formed on the surface thereof, and further formed thereon a resin coating film containing a conductive agent, wherein said coated steel sheet has a Ni coating layer made to have a hardness of from 300 to 650 as Vickers hardness. This coated steel sheet promises a superior coating adhesion after worked into positive electrode cans by pressing.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: January 11, 2000
    Assignees: Nisshin Steel Co., Ltd., Sanyo Electric Co., Ltd., Sanyo Excell Co., Ltd.
    Inventors: Taketo Uesugi, deceased, Masaaki Kurimura, Kazuhiro Shikada, Kenji Koshiishi, Yasuharu Maeda, Masahiro Murakami, Tomonori Makino
  • Patent number: 5527641
    Abstract: A coated metal sheet for alkaline dry cell positive electrode cans, comprising a metal sheet covered via a chromate film, preferably a chromate film containing carbon black, with a coating film mainly composed of at least one of an epoxy resin, an epoxy-acrylic resin and a polyester resin, containing at least one of graphite powder having a purity of not less than 95%, an aspect ratio of not less than 50 and an average particle diameter of not larger than 50 .mu.m and carbon black having an oil absorption of not less than 250 ml/100 g as measured using DBP, or a coating film further incorporated with a cross-linking agent. This coated metal sheet may be only worked by drawing to produce the positive electrode cans.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: June 18, 1996
    Assignees: Nisshin Steel Co., Ltd., Sanyo Electric Co., Ltd., Sanyo Excell Co., Ltd.
    Inventors: Kenji Koshiishi, Kazuyuki Hiraoka, Keiichi Sawaya, Kenji Ogawa, Toshio Nagatomo, Taketo Uesugi, Masaaki Kurimura, Kazuhiro Shikada, Kunio Hoshi, Toru Kobayashi, Masanobu Koda