Patents by Inventor Yoshito OKUNISHI

Yoshito OKUNISHI 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: 11969922
    Abstract: Provided is a resin molding apparatus that can reduce a variation in a thickness of a resin to be molded. A resin molding apparatus includes: a molding mold having one mold and the other mold; one mold wedge mechanism; and one mold cavity block driving mechanism. In a state that one mold cavity block is moved to a preset height position using the one mold cavity block driving mechanism and a position in a direction away from the other mold in the one mold cavity block having been moved to the height position is fixed to be limited using the one mold wedge mechanism, a resin is injected into one mold cavity, and thereafter resin molding can be performed by changing a depth of the one mold cavity using the one mold wedge mechanism and the one mold cavity block driving mechanism.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 30, 2024
    Assignee: TOWA Corporation
    Inventors: Yoshito Okunishi, Fuyuhiko Ogawa
  • Publication number: 20240116229
    Abstract: A resin molding device includes: a lower mold on which a substrate is placed; an upper mold in which a cavity is formed by a side block and a cavity block provided so as to be capable of ascending and descending vertically with respect to the side block; a clamp mechanism which clamps the lower mold and the upper mold; a transfer mechanism which supplies a resin material to the cavity by a plunger; and a controller which performs first final adjustment control for adjusting a clamp load of the clamp mechanism to a final clamp load after the cavity has been filled with the resin material supplied from the transfer mechanism and which performs second final adjustment control for driving the plunger after the first adjustment control has been completed and thereby adjusting a plunger load applied to the plunger to a final plunger load.
    Type: Application
    Filed: November 12, 2021
    Publication date: April 11, 2024
    Applicant: TOWA CORPORATION
    Inventors: Yoshito OKUNISHI, Fuyuhiko OGAWA
  • Publication number: 20240051199
    Abstract: The resin molding device comprises: a lower mold on which a substrate is placed; an upper mold in which a cavity is formed by a side block and a cavity block provided so as to be capable of rising and descending vertically with respect to the side block; a clamp mechanism for clamping the lower mold and the upper mold; a transfer mechanism that supplies a resin material to the cavity by means of a plunger; and a controller that uses the relationship between the position of the plunger and a resin filling rate for the cavity calculated on the basis of the volume of a chip arranged on the substrate and the volume of the resin material when performing filling rate correspondence control for controlling operation relating to resin molding triggered as a result of the plunger arriving at a position corresponding to a predetermined resin filling rate.
    Type: Application
    Filed: November 15, 2021
    Publication date: February 15, 2024
    Applicant: TOWA CORPORATION
    Inventors: Fuyuhiko OGAWA, Yoshito OKUNISHI
  • Publication number: 20220161469
    Abstract: Provided is a resin molding apparatus that can reduce a variation in a thickness of a resin to be molded. A resin molding apparatus includes: a molding mold having one mold and the other mold; one mold wedge mechanism; and one mold cavity block driving mechanism. In a state that one mold cavity block is moved to a preset height position using the one mold cavity block driving mechanism and a position in a direction away from the other mold in the one mold cavity block having been moved to the height position is fixed to be limited using the one mold wedge mechanism, a resin is injected into one mold cavity, and thereafter resin molding can be performed by changing a depth of the one mold cavity using the one mold wedge mechanism and the one mold cavity block driving mechanism.
    Type: Application
    Filed: February 27, 2020
    Publication date: May 26, 2022
    Applicant: TOWA Corporation
    Inventors: Yoshito OKUNISHI, Fuyuhiko OGAWA
  • Publication number: 20220161475
    Abstract: Provided is a resin molding apparatus that can suppress a molding problem caused by a variation in a thickness of an object to be molded or suppress a variation in a thickness of a resin molded part, and can perform a mold releasing operation. A resin molding apparatus includes: a molding mold having one mold and the other mold; one mold wedge mechanism; and one mold cavity block driving mechanism. In a state that a height position of one mold cavity block is set using the one mold cavity block driving mechanism and a position in a direction away from the other mold in the one mold cavity block having been moved to the height position is fixed to be limited using the one mold wedge mechanism, a mold releasing operation can be performed using the one mold wedge mechanism and the one mold cavity block driving mechanism.
    Type: Application
    Filed: February 27, 2020
    Publication date: May 26, 2022
    Applicant: TOWA Corporation
    Inventors: Yoshito OKUNISHI, Fuyuhiko OGAWA, Hideyuki SAKAI
  • Patent number: 10814532
    Abstract: A resin-molding device capable of preventing a resin-molded product from being non-uniform in thickness. A resin-molding device includes: a first and second platen (outside-loaded platen) which are two plate-shaped members arranged parallel to each other to allow a molding die to be arranged in a die arrangement section which is a central region between the platens; a force applier (toggle link and tie bars) for applying a force to the platens from loading points located outside the die arrangement section; a heating mechanism (lower and upper heater plates) provided between the outside-loaded platen and the molding die; and a heat-insulating member (lower and upper heat-insulating members) formed by a plurality of elastic pillar members arranged between the outside-loaded platen and the heating mechanism, the pillar members configured so that the amount of deformation of each pillar member increases from the center of the die arrangement section toward the loading point.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 27, 2020
    Assignee: TOWA CORPORATION
    Inventors: Yoshito Okunishi, Shinji Takase, Kazuki Kawakubo
  • Publication number: 20190001536
    Abstract: A resin-molding device capable of preventing a resin-molded product from being non-uniform in thickness. A resin-molding device includes: a first and second platen (outside-loaded platen) which are two plate-shaped members arranged parallel to each other to allow a molding die to be arranged in a die arrangement section which is a central region between the platens; a force applier (toggle link and tie bars) for applying a force to the platens from loading points located outside the die arrangement section; a heating mechanism (lower and upper heater plates) provided between the outside-loaded platen and the molding die; and a heat-insulating member (lower and upper heat-insulating members) formed by a plurality of elastic pillar members arranged between the outside-loaded platen and the heating mechanism, the pillar members configured so that the amount of deformation of each pillar member increases from the center of the die arrangement section toward the loading point.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 3, 2019
    Applicant: TOWA CORPORATION
    Inventors: Yoshito OKUNISHI, Shinji TAKASE, Kazuki KAWAKUBO