Patents by Inventor Ryoichi Sekiguchi

Ryoichi Sekiguchi 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: 6666259
    Abstract: In a method for manufacturing a mold of a metal hot-runner injection molding machine, a temperature gradient of metal disposed in a nozzle between a heating device of the nozzle and a tip of the nozzle is measured. Then, an area in the nozzle is selected based on the measurement of the temperature gradient such that the metal in the nozzle upon a mold opening has a temperature at which a solidified condition of the metal can be stably maintained, where the temperature is close to a melting temperature of the metal. A gate cut portion is determined in the area.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: December 23, 2003
    Assignees: Ju-Oh Inc., The Japan Steel Works Ltd.
    Inventors: Itsuo Shibata, Takashi Mizushima, Ryoichi Sekiguchi
  • Patent number: 6533021
    Abstract: A mold for a metal hot-runner injection molding machine includes a movable mold plate, a fixed mold plate having a nozzle for injecting molten metal into said cavity, and a heating device disposed outside the nozzle for heating metal. A gate cut portion is situated in the nozzle between the heating device and the tip. A temperature measurement device is arranged adjacent to the gate cut portion for measuring the temperature of the metal in the gate cut portion. A heating control device is connected to the heating device for controlling a temperature of the nozzle on a basis of the temperature measurement device. A heat insulation device is arranged on the nozzle to cover at least an area where the gate cut portion is formed. By controlling the temperature of the nozzle, metal injection molding without runner can be made.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: March 18, 2003
    Assignees: Ju-Oh Inc., The Japan Steel Works Ltd.
    Inventors: Itsuo Shibata, Takashi Mizushima, Ryoichi Sekiguchi
  • Publication number: 20020189781
    Abstract: In a method for manufacturing a mold of a metal hot-runner injection molding machine, a temperature gradient of metal disposed in a nozzle between a heating device of the nozzle and a tip of the nozzle is measured. Then, an area in the nozzle is selected based on the measurement of the temperature gradient such that the metal in the nozzle upon a mold opening has a temperature at which a solidified condition of the metal can be stably maintained, where the temperature is close to a melting temperature of the metal. A gate cut portion is determined in the area.
    Type: Application
    Filed: August 12, 2002
    Publication date: December 19, 2002
    Inventors: Itsuo Shibata, Takashi Mizushima, Ryoichi Sekiguchi
  • Patent number: 6410895
    Abstract: In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 25, 2002
    Assignee: Ju-Oh Inc.
    Inventors: Itsuo Shibata, Shinichi Edagawa, Ryoichi Sekiguchi, Hitoshi Toki, Tamotsu Munakata
  • Publication number: 20010038006
    Abstract: The present invention provides an induction heating method for a manifold in a hot runner mold where it is possible to uniformly heat material over the entire length of a runner and in which a coil may be easily attached to and detached from the manifold.
    Type: Application
    Filed: June 25, 2001
    Publication date: November 8, 2001
    Inventors: Itsuo Shibata, Shinichi Edagawa, Ryoichi Sekiguchi, Hitoshi Toki, Tamotsu Munakata
  • Patent number: 6310333
    Abstract: In an induction heating method for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: October 30, 2001
    Assignee: JU-OH Inc.
    Inventors: Itsuo Shibata, Shinichi Edagawa, Ryoichi Sekiguchi, Hitoshi Toki, Tamotsu Munakata
  • Publication number: 20010000402
    Abstract: The present invention provides an induction heating method for a manifold in a hot runner mold where it is possible to uniformly heat material over the entire length of a runner and in which a coil may be easily attached to and detached from the manifold.
    Type: Application
    Filed: December 5, 2000
    Publication date: April 26, 2001
    Applicant: JU - OH INC
    Inventors: Itsuo Shibata, Shinichi Edagawa, Ryoichi Sekiguchi, Hitoshi Toki, Tamotsu Munakata
  • Patent number: 5127317
    Abstract: A beverage extracting apparatus for vending machines includes a cylindrical mixing chamber having an inflow port on its upper portion and an opening on its bottom portion. A first valve mechanism opens and closes the inflow port. A second auxiliary valve mechanism of a smaller diameter than the first valve mechanism seats against the first valve mechanism. After the brewing operation is completed, the mixing chamber is exhausted of high pressure gas by the unseating of the auxiliary valve mechanism.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: July 7, 1992
    Assignee: Sanden Corporation
    Inventors: Yasushi Takayanagi, Ryoichi Sekiguchi
  • Patent number: 5105982
    Abstract: A dispensing unit for mixing and dispensing a beverage which consists of several constituents, including syrup. The unit dispenses beverage from a bottle having a bottom outlet portion and through a syrup path controlled by a manually operable valve. A gas path in the dispensing unit supplies gas into the bottle for urging the syrup from the bottle and into the syrup path. An additional liquid is permitted to flow to a mixing chamber along with the syrup where they are mixed.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: April 21, 1992
    Assignees: Sanden Corporation, Kirin Brewery Co., Ltd.
    Inventors: Yutaka Takahashi, Ikuo Harashima, Shunichi Nakayama, Yasuyuki Arai, Yasushi Takayanagi, Ryoichi Sekiguchi, Tomomitsu Abe, Hiroshi Hayakawa
  • Patent number: 4998462
    Abstract: A beverage extracting apparatus for vending machines includes a cylinder for storing a liquid mixture of water and raw material of a beverage, a valve opening and closing the inflow port of the cylinder, a filter covering the bottom opening of the cylinder, a filter support vertically moved to open and close the bottom opening of the cylinder via the filter, an air pressure supply for supplying pressurized air into the cylinder to forcibly filtrate the liquid mixture stored in the cylinder via the filter, a filter support guide frame vertically guiding the filter support, a filter support drive for vertically moving the filter support and including a lever pivotably supported by the filter support guide frame and engaged with the filter support, and an adjusting device for adjusting the vertical position of the filter support guide frame.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: March 12, 1991
    Assignee: Sanden Corporation
    Inventor: Ryoichi Sekiguchi
  • Patent number: 4986448
    Abstract: In a beverage dispensing unit which includes a storing unit (32), a conducting arrangement (43) for conducting a beverage from the storing unit, and a cabinet (38), the storing unit comprises a portable tank which is removable from the cabinet. The conducting arrangement includes an end portion (47) which is detachably connected to the tank. The end portion is held to the cabinet to be radially movable in relation to a connecting axis defined by the cabinet. Preferably, the cabinet comprises guiding arrangement (41, 42) for guiding the tank substantially along the connecting axis. The beverage dispensing unit further comprises a controlling unit (60) for controlling dispensation of the beverage. For adjusting a flow rate of the beverage in a beverage path (62, 63, 64) which is opened and closed by a valve (75), the controlling unit comprises an adjusting member (82) having an end (82b) covered with an operating member (90) which operates the valve.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: January 22, 1991
    Assignees: Sanden Corporation, Kirin Brewery Co., Ltd.
    Inventors: Yutaka Takahashi, Ikuo Harashima, Shunichi Nakayama, Yasuyuki Arai, Yasushi Takayanagi, Ryoichi Sekiguchi, Tomomitsu Abe, Hiroshi Hayakawa
  • Patent number: 4984511
    Abstract: A beverage extracting or brewing apparatus for vending machines includes a mixing ball for mixing water and raw material of a beverage, a cylinder having a spherical upper inner surface, a straight cylindrical communication path between the mixing ball and the cylinder having a flush inner surface, a valve opening and closing an inflow port of the cylinder and having a spherical upper surface, a valve shaft functioning as part of a pressurized air supply path into the cylinder, a filter positioned at the bottom of the cylinder and a pressurization device for supplying the pressurized air into the cylinder to forcibly filter the mixture liquid in the cylinder through the filter. The mixture liquid from the mixing ball can be sufficiently and efficiently mixed and stirred in the communication path and even in the cylinder, and smoothly flows into the cylinder through the space between the spherical inner surface of the cylinder and the spherical upper surface of the valve.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: January 15, 1991
    Assignee: Sanden Corporation
    Inventor: Ryoichi Sekiguchi
  • Patent number: 4960228
    Abstract: A post-mix beverage dispensing system including a cabinet having top, front, back, side and bottom panels for housing various components is disclosed. The components of the system include a carbonator for producing carbonated water by mixing cooled potable water with CO.sub.2. Potable water is stored in a portable tank means and is supplied to the carbonator through a first pipe. The portable tank is easily detachable from the cabinet. The system further includes a cooling reservoir containing cooled water. A serpentine section of the first pipe, along with the carbonator is disposed in the cooling reservoir. A CO.sub.2 tank supplies CO.sub.2 to the carbonator. Syrup packages dispense a selected syrup. Carbonated water from the carbonator, cool water from the portable tank, and syrup from the syrup packages are mixed in a valve and dispensed through a nozzle. The cooled water may be continuously supplied to the carbonator through the first pipe.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: October 2, 1990
    Assignees: Sanden Corporation, Kirin Brewery Co., Ltd.
    Inventors: Yutaka Takahashi, Ikuo Harashima, Sunichi Nakayama, Yasuyuki Arai, Yasushi Takayanagi, Ryoichi Sekiguchi, Tomomitsu Abe, Hiroshi Hayakawa