Patents by Inventor Takashi Unseki

Takashi Unseki 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).

  • Ship of contrarotating propeller propulsion type
    Patent number: 9463856
    Abstract: A ship includes a main propeller; a pod propulsion unit; and a rudder plate. The main propeller, the pod propulsion unit and the rudder plate are arranged on a hull centerline in this order. The pod propulsion unit includes a pod propeller; and a strut. The main propeller and the pod propeller configure a contrarotating propeller. When rudder angles of the pod propulsion unit and the rudder plate are zero, at least a part of a front end of the rudder plate is in front of a rear end of the casing.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: October 11, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Daisuke Matsumoto, Shingen Takeda, Takashi Unseki, Ryota Kuroiwa
  • SHIP OF CONTRAROTATING PROPELLER PROPULSION TYPE
    Publication number: 20150239540
    Abstract: A ship includes a main propeller; a pod propulsion unit; and a rudder plate. The main propeller, the pod propulsion unit and the rudder plate are arranged on a hull centerline in this order. The pod propulsion unit includes a pod propeller; and a strut. The main propeller and the pod propeller configure a contrarotating propeller. When rudder angles of the pod propulsion unit and the rudder plate are zero, at least a part of a front end of the rudder plate is in front of a rear end of the casing.
    Type: Application
    Filed: August 22, 2013
    Publication date: August 27, 2015
    Inventors: Daisuke Matsumoto, Shingen Takeda, Takashi Unseki, Ryota Kuroiwa
  • Stern tube seal device providing a seal about a rotatable shaft
    Patent number: 4632403
    Abstract: A stern tube seal device providing a seal about a rotatable shaft includes an annular case member arranged about the outer periphery of a shaft, a gap between the annular case member and the shaft sealed by a plurality of lip seals, a floating ring seal or a pressure type hollow ring is arranged in the middle of the lip seal, and pressure fluid is charged into the rear portion of the floating ring seal or into the pressure type hollow ring to enhance the sealing effect by the pressure of the fluid.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: December 30, 1986
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Eagle Industry Co., Ltd.
    Inventors: Kenichiro Ishitani, Takashi Unseki, Saburo Amiboshi, Eiichi Kawamura
  • Stern tube seal device providing a seal about a rotatable shaft
    Patent number: 4534569
    Abstract: A stern tube seal device providing a seal about a rotatable shaft includes an annular case member arranged about the outer periphery of a shaft, a gap between the annular case member and the shaft is sealed by a plurality of lip seals, a floating ring seal or a pressure type hollow ring is arranged in the middle of the lip seal, and pressure fluid is charged into the rear portion of the floating ring seal or into the pressure type hollow ring to enhance the sealing effect by pressure of the fluid.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: August 13, 1985
    Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Eagle Industry Co., Ltd.
    Inventors: Kenichiro Ishitani, Takashi Unseki, Saburo Amiboshi, Eiichi Kawamura