Patents by Inventor Masaru Okawa

Masaru Okawa 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: 4797169
    Abstract: A method for assembling veneer sheet into a plywood comprising the steps of supplying the veneer sheets to a feed conveyer, stopping the veneer sheet so that the forward edge thereof is precisely oriented in the transverse direction perpendicular to the feed direction, detecting the position of the veneer sheet in the transverse direction and calculating deviation thereof from a reference line extending along the feed direction by a computer, and transporting the veneer sheet by a transfer unit to a position on an assembling conveyer for fabricating a stepped lamination. The assembling conveyer extends parallel to the feed conveyer and is operated intermittently. The transfer unit includes a holding member for holding the veneer sheet during the transportation and is controlled by the computer for correcting the deviation while transporting the veneer sheet.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: January 10, 1989
    Assignee: Hashimoto Denki Co. Ltd.
    Inventors: Tadashi Aizawa, Toshimichi Nishiyama, Masaru Okawa, Kazuo Nakane
  • Patent number: 4194730
    Abstract: Molten metal handling vessels e.g. tundishes consist of an outer metal casing, a relatively permanent refractory lining and an inner disposible lining made of a plurality of slabs of refractory heat insulating material. Channels formed in the permanent lining adjacent the joints between the slabs or by rebates in the slabs are filled with refractory material, either preformed shapes or a refractory composition filled in situ. Such refractory material minimizes steel penetration through the joints between the slabs. The refractory material may contain carbonaceous material to enhance this antipenetration property.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: March 25, 1980
    Assignee: Foseco Trading AG
    Inventors: Chiaki Matsumoto, Hirokatsu Imai, Masaru Okawa