Patents by Inventor Teruhiko Takusagawa

Teruhiko Takusagawa 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).

  • Method of removing a coating film with a laser beam
    Patent number: 6384370
    Abstract: A laser light is applied to the surface of an object to be processed and formed with a coating film and at least an upper portion of the coating film is removed through abrasion, by using an energy density variable optical system capable of applying the laser light to the surface of the object and varying an energy density of the laser light on the surface of the object. The coating film can be removed without using chemicals.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: May 7, 2002
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Akira Tsunemi, Teruhiko Takusagawa, Yukiko Funabiki
  • Noren-type separating apparatus for separating a smoking area and a non-smoking area in an airliner with respect to cigarette smoke
    Patent number: 6189831
    Abstract: A slit curtain separating apparatus for separating a smoking area and a non-smoking area, defined in a passenger cabin of an airliner, with respect to cigarette smoke includes a curtain wall, which is suspended from the ceiling of the passenger cabin and extends along the boundary between the smoking and non-smoking areas. The curtain wall has slit curtains arranged individually over left- and right-hand aisles of the passenger cabin and a center curtain located between the aisles. The separating apparatus further includes a vent port array on the ceiling of the smoking area. The vent port array has aisle vent ports corresponding individually to the aisle and a center vent port located between the aisles. Smoke filled air in the smoking area is discharged from these vent ports.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: February 20, 2001
    Assignees: Japan Tobacco Inc., Japan Airlines
    Inventors: Takuya Asai, Takumi Nishina, Isao Ishii, Osamu Komatsubara, Teruhiko Takusagawa, Kenichi Takahashi, Kazuhiro Egami
  • Method of removing coating film with laser beam and laser processing system
    Patent number: 6144010
    Abstract: A laser light is applied to the surface of an object to be processed and formed with a coating film and at least an upper portion of the coating film is removed through abrasion, by using an energy density variable optical system capable of applying the laser light to the surface of the object and varying an energy density of the laser light on the surface of the object. The coating film can be removed without using chemicals.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: November 7, 2000
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Akira Tsunemi, Teruhiko Takusagawa, Yukiko Funabiki
  • Rotating-brush washing apparatus
    Patent number: 4885816
    Abstract: A washing apparatus, particularly for use on airplanes, comprising a carriage, a support, a mechanism connecting the carriage with the support for moving the support up and down on the carriage, a swing arm extending generally horizontally, a frame pivotably mounted on the swing arm and extending upwardly from the swing arm, a brush rotatably mounted on the upper end of the frame, and a mechanism connecting the swing arm to the support for swinging movement of the swing arm on the support. The apparatus may further include a cover at least partially surrounding the brush.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: December 12, 1989
    Assignees: Kawasaki Jukogyo Kabushiki, Japan Air Lines Co., Ltd.
    Inventors: Masayuki Hashimoto, Manabu Sakamoto, Taizo Tsutsui, Satoshi Satoh, Yukihiko Kouza, Keikichi Murakami, Tonokatsu Soga, Akira Takeishi, Teruhiko Takusagawa, Misao Hayashi