Patents by Inventor Katsunori Sako

Katsunori Sako 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: 6516494
    Abstract: A hinge is provided which includes a frame-side base member 41 adapted to be attached to an open frame 10 and a door-side base member 42 adapted to be attached to a door 20. The frame-side base member 41 is connected to a first plate 31 and the door-side base member 42 is connected to a second plate 32 which is hinge connected to the first plate 31, for holding the door 20 so as to be capable of rotating. The second plate 32 is separable from the door-side base member 42. The door-side base member 42 is shaped to be symmetrical about the vertical center line of the door edge, and is imbedded in the edge of the door 20 without any protrusions from the door 20. Further, the door-side base member 42 is provided with a slit 44 which penetrates the member 42 in the width direction of the door 20 and into which the second plate 32 can be inserted from both the front and back sides of the door 20. There is also provided a lock apparatus to lock the second plate 32 inserted into the slit 44.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: February 11, 2003
    Assignee: Kabushiki Kaisha Juken Sangyo
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo
  • Patent number: 6405490
    Abstract: Each of the hinges 30, 30 is positioned at upper and lower positions of the hinge-side vertical member 20 correspondingly, wherein each position is symmetrical relative to the horizontal plane which divides the hinge-side vertical member 20 in halves. A latch hole 52 of the latch receiver 50 is provided at a position of the latch-side vertical member 25 where the member 25 is divided in halves. A latch 40 is positioned higher than a door handle 90 capable of reversing. Each hinge is attached through one touch operation in order for use in a double hinged door system.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: June 18, 2002
    Assignee: Kabushiki Kaisha Juken Sangyo
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo
  • Patent number: 6308476
    Abstract: The present invention is directed to a frame that is placed at an opening portion in a partition provided in houses and the like, and specifically an adjustable frame comprising a plurality of frame adjustable fasteners including: a fixing member including an external thread member having a cylindrical manner for being incorporated at a partition side of an opening portion in a partition provided in houses and the like, and a base member for rotatably supporting said external thread member; and an internal thread member for being rotatably engaged with said external thread member and for installed in a frame body. The adjustable frame allows the external thread member to be turned, thereby adjusting its length, capable of fixing to the opening portion of the partition. Further, if necessary, the adjustable frame may be comprised of a pair of frame members having the width where a first frame member and a second frame member overlap in part in a thickness direction of the partition (wall thickness).
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: October 30, 2001
    Assignee: Kabushiki Kaisha Juken Sangyo
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo
  • Publication number: 20010029703
    Abstract: Each of the hinges 30, 30 is positioned at upper and lower positions of the hinge-side vertical member 20 correspondingly, wherein each position is symmetrical relative to the horizontal plane which divides the hinge-side vertical member 20 in halves. A latch hole 52 of the latch receiver 50 is provided at a position of the latch-side vertical member 25 where the member 25 is divided in halves. A latch 40 is positioned higher than a door handle 90 capable of reversing. Each hinge is attached through one touch operation in order for use in a double hinged door system.
    Type: Application
    Filed: January 8, 2001
    Publication date: October 18, 2001
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo
  • Publication number: 20010011406
    Abstract: A hinge comprising a frame-side base member 41 attached to an open frame 10 and a door-side base member 42 attached to a door 20, wherein the frame-side base member 41 is connected to a first plate 31 and the door-side base member 41 is connected to a second plate 32 which is hinge connected to the first plate 31, holding the door 20 capable of rotating. The second plate 32 is separable from the door-side base member 42. The door-side base member 42 is shaped symmetrical about the vertical center line of the door edge, and is imbedded in the edge of the door 20 while protruding no portions out of the door 20. Further, the door-side base member 42 is provided with a slit 44 which penetrates the member 42 in the width direction of the door 20 and into which the second plate 32 can be inserted from both the front and back sides of the door 20. There is also provided a lock apparatus to lock the second plate 32 inserted into the slit 44.
    Type: Application
    Filed: January 8, 2001
    Publication date: August 9, 2001
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo
  • Patent number: 6167663
    Abstract: The present invention is directed to a frame that is placed at an opening portion in a partition provided in houses and the like, and specifically an adjustable frame comprising a plurality of frame adjustable fasteners including: a fixing member including an external thread member having a cylindrical manner for being incorporated at a partition side of an opening portion in a partition provided in houses and the like, and a base member for rotatably supporting said external thread member; and an internal thread member for being rotatably engaged with said external thread member and for installed in a frame body. The adjustable frame allows the external thread member to be turned, thereby adjusting its length, capable of fixing to the opening portion of the partition. Further, if necessary, the adjustable frame may be comprised of a pair of frame members having the width where a first frame member and a second frame member overlap in part in a thickness direction of the partition (wall thickness).
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 2, 2001
    Assignee: Kabushiki Kaisha Juken Sangyo
    Inventors: Yusho Nakamoto, Katsunori Sako, Kiminori Kubo