Patents by Inventor Osamu Ooshita

Osamu Ooshita 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).

  • Continuous gas carburizing furnace
    Patent number: 8617461
    Abstract: A continuous gas carburizing furnace includes a gas carburizing processing chamber (a preheating chamber 2, a heating chamber 3, a carburizing chamber 4, a diffusion chamber 5 and a temperature decrease chamber 6) in which a gas carburizing process is performed on a workpiece 50, an oil quenching chamber 8 in which oil quenching is performed on the workpiece 50, and a gas quenching chamber 7 in which gas quenching is performed on the workpiece 50. The gas carburizing processing chamber includes a temperature decrease chamber 6 in which the temperature of the workpiece heated by a gas carburizing process is lowered. The temperature decrease chamber 6, the gas quenching chamber 7 and the oil quenching chamber 8 are arranged in that order from the upstream side to the downstream side in the conveying direction of the workpiece 50, and are adjacent to each other.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: December 31, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Chugai Ro Co., Ltd.
    Inventors: Masahiro Yamada, Osamu Ooshita, Kazunori Tooyama, Yuki Kono
  • CONTINUOUS GAS CARBURIZING FURNACE
    Publication number: 20130019796
    Abstract: A continuous gas carburizing furnace includes a gas carburizing processing chamber (a preheating chamber 2, a heating chamber 3, a carburizing chamber 4, a diffusion chamber 5 and a temperature decrease chamber 6) in which a gas carburizing process is performed on a workpiece 50, an oil quenching chamber 8 in which oil quenching is performed on the workpiece 50, and a gas quenching chamber 7 in which gas quenching is performed on the workpiece 50. The gas carburizing processing chamber includes a temperature decrease chamber 6 in which the temperature of the workpiece heated by a gas carburizing process is lowered. The temperature decrease chamber 6, the gas quenching chamber 7 and the oil quenching chamber 8 are arranged in that order from the upstream side to the downstream side in the conveying direction of the workpiece 50, and are adjacent to each other.
    Type: Application
    Filed: March 28, 2011
    Publication date: January 24, 2013
    Inventors: Masahiro Yamada, Osamu Ooshita, Kazunori Tooyama, Yuki Kono