Patents by Inventor Tetsutaro Uematsu

Tetsutaro Uematsu 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).

  • Dual-purpose fluid for cutting and electrical discharge machining
    Patent number: 5349149
    Abstract: A cutting and machining fluid applicable to both cutting and electrical discharge machining. This cutting and machining fluid comprises a water-soluble organic compound that shows an electrical resistivity of not less than 10,000 .OMEGA..cm when it is contained in deionized water having an electrical resistivity of not less than 1,000,000 .OMEGA..cm, in a concentration of from 1 to 10 % by weight, a nonionic surface active agent, or a mixture of these. The organic compound is selected from the group of ethylene glycols, propylene glycols, glycol monoethers, and polyoxyethylene fatty acid esters.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: September 20, 1994
    Assignee: Castrol Limited Burmah Castrol House
    Inventors: Harumitsu Shiraki, Hiroyasu Sohtome, Kiyoshi Suzuki, Tetsutaro Uematsu, Lao-Sou Su
  • Machine tool with grinding function and truing/dressing method of grinding stone using it
    Patent number: 5045664
    Abstract: A machining tool is provided with an electric discharge truing/dressing apparatus comprising a spindle stock for containing and supporting a workpiece spindle which is driven for rotation while holding a workpiece or an electrode; a tool rest which moves parallel and perpendicular to the spindle of the spindle stock and holds an electrode machining tool and a grinding wheel; a feed electricity means disposed between a workpiece supporting portion of the spindle and the tool rest; a magazine disposed at an outside area of a machining area of the tool rest and adapted to store the workpiece and the electrode; and a loading device disposed between the magazine and the spindle. The grinding wheel on the tool rest is subjected to truing/dressing by feeding the electrode from the magazine to the spindle stock.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: September 3, 1991
    Assignees: Yamazaki Mazak Corporation, Takeo Nakagawa
    Inventors: Takeo Nakagawa, Kiyoshi Suzuki, Tetsutaro Uematsu, Norihiko Shimizu, Sakae Hatano, Munetada Kurita, Kanji Sato, Yoshiharu Takada
  • Automatic copying belt grinding machine
    Patent number: 4075791
    Abstract: An automatic copying belt grinding machine comprising a vertically moving Z-axis slide, a horizontally moving X-axis slide, a horizontally moving X-axis slide slidably mounted on said Z-axis slide, a duplex electronic copying sensor and a grinding head swivelling device mounted together on said X-axis slide, and a pair of synchronously rotating fixture tables for respectively vertically mounting a copying model to be brought into interaction with said duplex electronic copying sensor and a workpiece to be brought into interaction with said grinding head swivelling device, whereby all these components are made to perform a copy grind machining operation jointly under the control of a simultaneous control unit.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: February 28, 1978
    Assignees: Tahara Shoyei Kiko K.K., Hoshiden Electronics, Co., Ltd.
    Inventors: Sakae Koide, Shigeo Aoki, Tetsutaro Uematsu