Patents by Inventor Eiji Naruse

Eiji Naruse 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: 6942010
    Abstract: A gravity type tiltable metal mold casting machine, comprising: a pair of opposing upright supporting frames (2, 2); a pair of opposing main rotating shafts (3, 3) rotatably mounted on the upright supporting frames (2, 2); a main frame (4) suspended from and between the main rotating shafts (3, 3); an electric motor (19) attached to one of the main rotating shafts (3, 3) for reversibly rotating it and hence the frame (4); a drag die plate (6) vertically moved by mold-fastening cylinders (5, 5) mounted on a lower part of the main frame (4); a metal drag (10) secured to the drag die plate (6), the metal drag having a drag pushing-out mechanism (23) for pushing an as-cast product out of the metal drag; a pair of opposing horizontal cope tilting shafts (13, 13) secured to an upper end of the main frame at locations rearward of the main rotating shafts (3, 3); a cope-attaching frame (14) rotatably mounted at one end on the cope tilting shafts (13, 13); a cope die plate (16) secured to a lower surface of the cope-a
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: September 13, 2005
    Assignee: Sintokogio, Ltd.
    Inventors: Mitsuharu Osugi, Eiji Naruse, Yuji Kanayama, Yutaka Murata
  • Publication number: 20040065429
    Abstract: A gravity type tiltable metal mold casting machine, comprising: a pair of opposing upright supporting frames (2, 2); a pair of opposing main rotating shafts (3, 3) rotatably mounted on the upright supporting frames (2, 2); a main frame (4) suspended from and between the main rotating shafts (3, 3); an electric motor (19) attached to one of the main rotating shafts (3, 3) for reversibly rotating it and hence the frame (4); a drag die plate (6) vertically moved by mold-fastening cylinders (5, 5) mounted on a lower part of the main frame (4); a metal drag (10) secured to the drag die plate (6), the metal drag having a drag pushing-out mechanism (23) for pushing an as-cast product out of the metal drag; a pair of opposing horizontal cope tilting shafts (13, 13) secured to an upper end of the main frame at locations rearward of the main rotating shafts (3, 3); a cope-attaching frame (14) rotatably mounted at one end on the cope tilting shafts (13, 13); a cope die plate (16) secured to a lower surface of the cope-a
    Type: Application
    Filed: July 15, 2003
    Publication date: April 8, 2004
    Inventors: Mitsuharu Osugi, Eiji Naruse, Yuji Kanayama, Yutaka Murata
  • Patent number: 5836370
    Abstract: A method of manufacturing a low melting-point metal core is provided, which consists of fitting a loose piece 6 having a built-in heater 5 in a mold 4, casting molten metal by pushing it up from a furnace into the cavity of the mold 4 to fill it, keeping the mold in a filled state for a given time, and stopping the casting step at a time at which the molten metal at the central part of the cavity is still unsolidified, so as to have the unsolidified molten metal fall freely into the furnace.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: November 17, 1998
    Assignee: Sintokogio, Ltd.
    Inventor: Eiji Naruse
  • Patent number: 5411074
    Abstract: An image of the separating plane of each of mold pieces of a metallic mold is picked up by a infrared vidicon camera before the mold pieces are closed together. That image is then processed so as to obtain a temperature distribution pattern which is in turn compared with a target temperature distribution pattern previously stored in memory. With the result of the comparison, the mold piece is cooled or heated so as to have the target temperature pattern before the mold pieces are closed together.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: May 2, 1995
    Assignee: Sintokogio Ltd.
    Inventors: Eiji Naruse, Tadashi Nishida