Patents Assigned to Towa Corporation
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Publication number: 20240116229Abstract: 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: ApplicationFiled: November 12, 2021Publication date: April 11, 2024Applicant: TOWA CORPORATIONInventors: Yoshito OKUNISHI, Fuyuhiko OGAWA
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Patent number: 11938660Abstract: A mold die includes: a mold die body that is configured to hold an object to be molded, the object including a substrate and a chip mounted in a central area of the substrate, and that has a cavity which is rectangular in a plan view and which is configured to receive a resin material, the mold die body including: a pot for containing the resin material; a gate disposed at one side of the cavity and configured to allow the resin material to flow into the cavity; and a flow-path restricting mechanism that is disposed on both lateral sides of the cavity that are perpendicular to the one side and that is configured to narrow lateral flow paths, the lateral flow paths being flow paths for the resin material flowing through the cavity in which the chip is not disposed.Type: GrantFiled: May 14, 2020Date of Patent: March 26, 2024Assignee: TOWA CORPORATIONInventors: Makoto Tsukiyama, Atsushi Morikami, Kosuke Araki
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Publication number: 20240051199Abstract: 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: ApplicationFiled: November 15, 2021Publication date: February 15, 2024Applicant: TOWA CORPORATIONInventors: Fuyuhiko OGAWA, Yoshito OKUNISHI
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Publication number: 20240009900Abstract: The present invention enables a reference surface member to reliably contact a side surface of a recess of a molding die, and is directed to a conveyance apparatus that conveys an object to be molded to a molding die in which a recess is formed on a side of a mold surface on which the object to be molded is placed, the conveyance apparatus including: a position reference mechanism having a reference surface serving as a positioning reference of the object to be molded placed on the molding die; and an object-to-be-molded moving mechanism that moves the object to be molded placed on the molding die toward the reference surface.Type: ApplicationFiled: November 22, 2021Publication date: January 11, 2024Applicant: TOWA CORPORATIONInventor: Syuhei YOSHIDA
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Publication number: 20240009899Abstract: A compression mold includes a first mold and a second mold. The first mold includes a side surface member and a bottom surface member. The side surface member includes a step height on a bottom surface member side of the side surface member. The step height includes a first surface of the side surface member, a second surface that extends from the first surface toward the bottom surface member, and a third surface that extends downward from the second surface. The bottom surface member includes an upper surface where a resin material can be arranged and a slide surface that extends downward from the upper surface and is slidable with respect to the third surface of the side surface member. The third surface of the side surface member is not exposed while the resin material is supplied.Type: ApplicationFiled: September 10, 2021Publication date: January 11, 2024Applicant: TOWA CORPORATIONInventors: Yusuke YOSHIDA, Yohei ONISHI
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Publication number: 20230398638Abstract: Provided is a laser processing device that enables a film to be stabilized and processed. The present invention comprises: a conveyance mechanism that conveys a film; a holding mechanism that has a pair of holding parts which can at least sandwich and hold lateral portions of the processing range of the film; and a laser mechanism for processing the processing range of the film held by the holding mechanism.Type: ApplicationFiled: September 30, 2021Publication date: December 14, 2023Applicant: TOWA CORPORATIONInventors: Hikaru KIMURA, Hideo ICHIHASHI, Keita MIZUMA, Shun HIRANO, Takeshi YACHIGUCHI
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Patent number: 11833722Abstract: 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: GrantFiled: August 20, 2021Date of Patent: December 5, 2023Assignee: Towa CorporationInventors: Hayato Yasui, Yohei Onishi, Hitoshi Okazaki
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Publication number: 20230364833Abstract: 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: ApplicationFiled: September 28, 2021Publication date: November 16, 2023Applicant: TOWA CORPORATIONInventor: Yoshihisa KAWAMOTO
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Patent number: 11712823Abstract: 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: GrantFiled: August 21, 2021Date of Patent: August 1, 2023Assignee: TOWA CORPORATIONInventors: Yusuke Yoshida, Yohei Onishi
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Publication number: 20230202079Abstract: 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: ApplicationFiled: April 28, 2021Publication date: June 29, 2023Applicant: TOWA CORPORATIONInventors: Yoshihisa KAWAMOTO, Noriyuki TAKAHASHI, Keita MIZUMA
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Publication number: 20230103899Abstract: 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: ApplicationFiled: January 19, 2021Publication date: April 6, 2023Applicant: TOWA CORPORATIONInventors: Motoki FUKAI, Satoko HORI, Katsumasa SHIRAI, Hidekazu AZUMA
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Publication number: 20230074984Abstract: 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: ApplicationFiled: January 20, 2021Publication date: March 9, 2023Applicant: TOWA CORPORATIONInventors: Motoki FUKAI, Satoko HORI, Katsumasa SHIRAI, Hidekazu AZUMA
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Publication number: 20220161475Abstract: 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: ApplicationFiled: February 27, 2020Publication date: May 26, 2022Applicant: TOWA CorporationInventors: Yoshito OKUNISHI, Fuyuhiko OGAWA, Hideyuki SAKAI
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Publication number: 20220161469Abstract: 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: ApplicationFiled: February 27, 2020Publication date: May 26, 2022Applicant: TOWA CorporationInventors: Yoshito OKUNISHI, Fuyuhiko OGAWA
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Publication number: 20220118656Abstract: 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: ApplicationFiled: October 6, 2021Publication date: April 21, 2022Applicant: TOWA CorporationInventors: Haruka USHIO, Masayuki KATAYAMA
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Publication number: 20220055261Abstract: 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: ApplicationFiled: August 16, 2021Publication date: February 24, 2022Applicant: TOWA CorporationInventors: Hayato YASUI, Yohei ONISHI
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Publication number: 20210387385Abstract: 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: ApplicationFiled: August 22, 2019Publication date: December 16, 2021Applicant: TOWA CORPORATIONInventor: Syuhei YOSHIDA
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Publication number: 20210370565Abstract: 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: ApplicationFiled: August 1, 2019Publication date: December 2, 2021Applicant: TOWA CORPORATIONInventor: Syuhei YOSHIDA
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Patent number: 10814532Abstract: 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: GrantFiled: July 8, 2016Date of Patent: October 27, 2020Assignee: TOWA CORPORATIONInventors: Yoshito Okunishi, Shinji Takase, Kazuki Kawakubo
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Patent number: 10792880Abstract: 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: GrantFiled: November 18, 2016Date of Patent: October 6, 2020Assignee: Towa CorporationInventors: Kenji Ogata, Daisuke Higashi