Patents Assigned to Towa Corporation
  • Patent number: 11833722
    Abstract: A resin molding apparatus includes: a first molding mold provided with a first member and a second member configured to move relative to the first member, and configured to form a cavity by the first member and the second member; a second molding mold configured to hold a substrate; and a mask member so as to be relatively immovable with respect to the first member, configured to make contact with a portion of the substrate when the first molding mold and the second molding mold are clamped, and formed with a flow portion through which a resin material existing in the cavity and pressurized by the second member is capable of flowing.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: December 5, 2023
    Assignee: Towa Corporation
    Inventors: Hayato Yasui, Yohei Onishi, Hitoshi Okazaki
  • Publication number: 20230364833
    Abstract: The present invention is to improve the quality and appearance of a second molded product such as a secondary molded product obtained by further resin-molding a first molded product such as a primary molded product, for example. The present invention is a method for manufacturing a resin molded product in which a second molded product is obtained by further performing resin molding on a resin-molded first molded product using a first mold with a cavity formed and a second mold facing the first mold, the method including a disposing step of disposing the first molded product in the cavity and disposing a resin material on the first molded product, and a mold clamping step of clamping the first mold and the second mold after the disposing step.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 16, 2023
    Applicant: TOWA CORPORATION
    Inventor: Yoshihisa KAWAMOTO
  • Patent number: 11712823
    Abstract: The present invention provides a resin leakage prevention member 401 for use in a molding die 1000, wherein the molding die 1000 includes a lower die 200 and an upper die 100, the lower die 200 has a side member 201 and a bottom member 202, a space surrounded by the side member 201 and the bottom member 202 forms a cavity 204, the cavity 204 is configured to accommodate a resin material 20a, the side member 201 is configured to move relatively vertical to the bottom member 202, and the resin leakage prevention member 401 is disposed on a peripheral portion of an upper surface of the bottom member 202 and along an inner peripheral surface of the side member 201, thereby sealing a gap between the side member 201 and the bottom member 202 and preventing a resin from leaking from the cavity 204 into the gap.
    Type: Grant
    Filed: August 21, 2021
    Date of Patent: August 1, 2023
    Assignee: TOWA CORPORATION
    Inventors: Yusuke Yoshida, Yohei Onishi
  • Publication number: 20230202079
    Abstract: The present invention is intended to prevent resin from sticking to a molding surface of a first molding die that holds an object to be molded, without using a release film, and is a resin molding apparatus that performs resin molding on the object to be molded, the resin molding apparatus including: a first molding die that holds the object to be molded; a second molding die that is provided in a manner facing the first molding die and that has a cavity for holding resin material; and a cover plate that is provided between the object to be molded and the first molding die, that covers a molding surface of the first molding die, and that has rigidity for maintaining its own shape.
    Type: Application
    Filed: April 28, 2021
    Publication date: June 29, 2023
    Applicant: TOWA CORPORATION
    Inventors: Yoshihisa KAWAMOTO, Noriyuki TAKAHASHI, Keita MIZUMA
  • Publication number: 20230103899
    Abstract: The present invention aims at eliminating a need for a protective cover such as a bellows cover and improving a collection rate of machining scraps, and includes machining tables that are fixed at least in X and Y directions on a horizontal plane and hold a workpiece, a machining mechanism that machines the workpiece with a rotary tool using a machining liquid, a moving mechanism that linearly moves the machining mechanism at least in each of the X and Y directions on the horizontal plane, and a machining scrap storage unit that is provided below the machining tables and stores machining scraps generated by machining by the machining mechanism.
    Type: Application
    Filed: January 19, 2021
    Publication date: April 6, 2023
    Applicant: TOWA CORPORATION
    Inventors: Motoki FUKAI, Satoko HORI, Katsumasa SHIRAI, Hidekazu AZUMA
  • Publication number: 20230074984
    Abstract: The present invention aims at eliminating a need for a moving mechanism that moves a machining table and eliminating a need for a protective cover such as a bellows cover, and includes a machining table that holds a workpiece, a machining mechanism that machines the workpiece with a rotary tool while using a machining liquid, and a moving mechanism that linearly moves the machining mechanism at least in each of X and Y directions on a horizontal plane, in which the machining mechanism moved by the moving mechanism machines the workpiece with respect to the machining table, the machining table being fixed at least in the X and Y directions.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 9, 2023
    Applicant: TOWA CORPORATION
    Inventors: Motoki FUKAI, Satoko HORI, Katsumasa SHIRAI, Hidekazu AZUMA
  • 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
  • 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: 20220118656
    Abstract: Provided a method for supplying a resin by which appropriate replacement of a cartridge enables resin supply to be performed appropriately. The method for supplying a resin includes: a primary resin supplying step of supplying a liquid resin contained in a first cartridge to a supply target, the first cartridge having a remaining amount of liquid resin smaller than a target supply amount appropriate for one-time resin supply to the supply target; a cartridge replacing step of replacing, after the primary resin supplying step, the first cartridge with a second cartridge already subjected to dripping out; and a secondary resin supplying step of supplying a liquid resin contained in the second cartridge to the supply target after the cartridge replacing step.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 21, 2022
    Applicant: TOWA Corporation
    Inventors: Haruka USHIO, Masayuki KATAYAMA
  • Publication number: 20220055261
    Abstract: A resin molding apparatus capable of suppressing an occurrence of defects related to resin filling. The resin molding apparatus includes: a molding mold which forms a cavity; a pot which is arranged in the molding mold and is capable of accommodating a resin material, and in which an opening portion opening directly to the cavity is formed; and a plunger which is arranged to be slidable in the pot, and transfers the resin material accommodated in the pot toward the cavity via the opening portion by extruding the resin material. An inner diameter of the opening portion is formed to be the same as an outer diameter of the plunger or larger than the outer diameter of the plunger.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 24, 2022
    Applicant: TOWA Corporation
    Inventors: Hayato YASUI, Yohei ONISHI
  • Publication number: 20210387385
    Abstract: The present invention relates to a conveyance device with which a subject to be molded can be positioned relative to a forming die. This conveyance device conveys a subject to be molded to one die from among forming dies to which a resin material is supplied from a resin injection part and comprises a retaining unit which retains and delivers the subject to be molded to the one die, a first movement mechanism which moves the subject to be molded having been delivered to the one die in a first direction toward the resin injection part, and a second movement mechanism which moves the subject to be molded having been delivered to the one die in a second direction differing from the first direction.
    Type: Application
    Filed: August 22, 2019
    Publication date: December 16, 2021
    Applicant: TOWA CORPORATION
    Inventor: Syuhei YOSHIDA
  • Publication number: 20210370565
    Abstract: The present invention is a transfer device for unloading a resin molded article from one mold provided with a resin injection unit, the resin molded article being unloaded by the transfer device from one mold provided with a resin injection unit having a member projecting between at least part of the resin molded article and another mold, wherein the resin injection unit has a member projecting between at least part of the resin molded article and the other mold, and the transfer device is equipped with a holding member for holding the resin molded article and a horizontal movement mechanism that causes the holding member holding the resin molded article to move in the horizontal direction to separate the resin molded article from the resin injection unit.
    Type: Application
    Filed: August 1, 2019
    Publication date: December 2, 2021
    Applicant: TOWA CORPORATION
    Inventor: Syuhei YOSHIDA
  • 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
  • Patent number: 10792880
    Abstract: A tableting punch or a die includes a base material and a tableting surface layer on the base material. The tableting surface layer includes crystalline yttrium oxide containing nitrogen and a group 4A element.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 6, 2020
    Assignee: Towa Corporation
    Inventors: Kenji Ogata, Daisuke Higashi
  • 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
  • Patent number: 10170346
    Abstract: A lower mold has a bottom surface member and a side surface member. An upper end surface of the bottom surface member forms an inner bottom surface of a cavity and has a planar shape corresponding to an unusual planar shape of a sealing resin. A substrate is disposed on a mold surface of an upper mold such that a component to be sealed attached to the substrate faces downward, and the cavity is filled with a fluid resin. The upper mold and the lower mold are clamped, and the component is immersed in the fluid resin. The bottom surface member is raised, and the fluid resin is pressed at a prescribed resin pressure and cured to form the sealing resin. The bottom surface member and the side surface member are moved relatively, and thereby, a molded product is released from a mold surface of the lower mold.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 1, 2019
    Assignee: TOWA CORPORATION
    Inventors: Yohei Onishi, Takeaki Taka
  • Publication number: 20180243953
    Abstract: Provided is a resin-molding device 10 including: a first platen 11 and a second platen 12; a first molding die 161 to be attached to the first platen; a second molding die 162 to be attached to the second platen and arranged so as to face the first molding die; a die-clamping mechanism 133 for clamping the first and second molding dies together by decreasing the distance between the first and second platens, and for separating the first and molding dies from each other by increasing the distance between the first and second platens; and a flatness adjuster 14 including an adjustment member 141 for adjusting the parallelism between the die surface of the first molding die and that of the second molding die, or the flatness of a resin-molded product to be molded with the first and second molding dies.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 30, 2018
    Applicant: TOWA CORPORATION
    Inventors: Yusuke SHIMODA, Noriyuki TAKAHASHI
  • Patent number: 9913502
    Abstract: A glove base and glove are provided, which release moisture outside from the entire glove when the glove is configured only of a fiber glove base or when a coating is provided to a surface of the glove base. The glove base of the present invention is made of fibers and has a hand shape. Water-absorbing properties of a first fiber type exposed mainly to an inside surface of the glove base are higher than water-absorbing properties of a second fiber type exposed mainly to outside surface of the glove base. The first fiber type absorbs and moves moisture on a surface of a hand inside the glove base toward the second fiber type, and the second fiber type then moves the moisture from the first fiber type mainly in a surface direction of the glove base.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: March 13, 2018
    Assignee: Towa Corporation Co., Ltd.
    Inventors: Nobuyoshi Koga, Akinori Yamaguchi, Mai Kojio
  • Patent number: 9728426
    Abstract: The present invention provides a method for producing a resin-encapsulated electronic component, capable of simply and efficiently producing a resin-encapsulated electronic component having both of a via electrode(s) (bump(s)) and a plate-like member. The method includes a resin-encapsulation step of encapsulating at least one electronic component in a resin. A produced resin-encapsulated electronic component includes: a substrate; the at least one electronic component; the resin; a plate-like member; and at least one bump. A wiring pattern is formed on the substrate. In the resin-encapsulation step, between a bump-formed surface in a bump-formed plate-like member obtained by forming the at least one bump in the plate-like member and a wiring pattern-formed surface in the substrate, the at least one electronic component is encapsulated in the resin, and the at least one bump is caused to be in contact with the wiring pattern.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 8, 2017
    Assignee: TOWA CORPORATION
    Inventors: Hirokazu Okada, Hiroshi Uragami, Tsuyoshi Amakawa, Muneo Miura
  • Patent number: D829386
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 25, 2018
    Assignee: TOWA CORPORATION LTD.
    Inventors: Nobuyoshi Koga, Risa Nakagawa, Rikiya Yamashita