Patents Assigned to Kyoraku Co. Ltd.
  • Patent number: 11958569
    Abstract: An object of the present invention is to provide a float assembly that can prevent the floats from flipping. The present invention provides a float assembly including a plurality of floats connected together comprising: a filled float having a hollow portion, wherein the hollow portion has a part filled with a filler, and the filled float is arranged at a position facing an assembly periphery surrounding the float assembly.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 16, 2024
    Assignee: KYORAKU CO., LTD.
    Inventors: Tsutomu Sakaguchi, Hirofumi Nagai, Yasunobu Ueda, Takaya Niimi, Ayumu Yukawa
  • Publication number: 20240109238
    Abstract: A resin residue removal device is provided that is capable of appropriately removing a resin residue adhered to a lower surface of a die of a molding apparatus. The present invention provides a resin residue removal device for removing a resin residue adhered to a lower surface of a die of a molding apparatus, the device including a moving mechanism and a resin residue removal head, wherein the moving mechanism is configured to move the resin residue removal head between a lateral position out of a position immediately below the die and an immediately below position as the position immediately below, and also in the immediately below position, to move the head between a separate position separate from the lower surface and a close position close to the lower surface, and the resin residue removal head is configured to allow removal of the resin residue adhered to the lower surface by moving along the lower surface.
    Type: Application
    Filed: January 19, 2022
    Publication date: April 4, 2024
    Applicant: KYORAKU CO., LTD.
    Inventor: Tadatoshi TANJI
  • Patent number: 11912464
    Abstract: The present disclosure provides a container with an increased movable range of an upper wall with respect to a side wall. According to the present disclosure provided is a container including a side wall, an upper hinge member, and an upper wall, wherein the upper hinge member and the side wall are connected rotatably around a first rotation axis, the upper hinge member and the upper wall are connected rotatably around a second rotation axis, and the first and second rotation axes are parallel.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: February 27, 2024
    Assignee: KYORAKU CO., LTD.
    Inventors: Kouichiro Yoshida, Yoshitaka Matsubara, Teruhisa Hanafusa
  • Patent number: 11890802
    Abstract: A molding apparatus provided with a transfer capable of transferring a heavy-weight mold clamping device. The molding apparatus that molds a molded product, includes: a mold clamping device clamping a parison extruded from an extruder to obtain a molded body, a transfer rail to support the mold clamping device in a transferable manner, and an electric cylinder to transfer the mold clamping device along the transfer rail. The mold clamping device includes first and second platens for holding a die, and a clamping drive unit for driving the first and second platens closer to or separated from each other, the electric cylinder includes a motor having an output shaft and a feed screw mechanism that converts the rotary motion of the output shaft into a linear motion.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: February 6, 2024
    Assignees: KYORAKU CO., LTD., SIKA MACHINERY CO., LTD.
    Inventors: Tzu Chiang Chang, Shuji Ito
  • Patent number: 11851234
    Abstract: The present invention provides a plastic container with excellent slipping property for contents. According to the present invention, provided is a plastic container for storing contents, wherein the plastic container is a blow molded body, an innermost layer in contact with the contents is formed of a resin composition containing a base resin and filler particles, and an inner surface of the innermost layer is provided with concave and convex shapes due to presence of the filler particles.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: December 26, 2023
    Assignees: KYORAKU CO., LTD., TOYO ALUMINIUM KABUSHIKI KAISHA
    Inventors: Tatsuro Aoki, Takayoshi Hosoya, Taro Ikeda, Hiroaki Awata
  • Publication number: 20230405912
    Abstract: The present invention provides a method for manufacturing a panel by which the formation of a blister-shaped inflation portion at the boundary between an intermediate portion and a hinge can be suppressed, even when the size of the intermediate portion is small. According to the present invention, provided is a method for manufacturing a panel, wherein the panel comprises first and second main body portions, and a hinge portion, the hinge portion comprises first and second hinges extending in parallel and an intermediate portion arranged therebetween, the first main body portion and the intermediate portion are connected by the first hinge so as to be able to pivot relative to each other, the second main body portion and the intermediate portion are connected by the second hinge so as to be able to pivot relative to each other.
    Type: Application
    Filed: November 24, 2021
    Publication date: December 21, 2023
    Applicant: KYORAKU CO., LTD.
    Inventors: Yuki HARASAWA, Sho NAKAJIMA, Ryuichi ISHIDA
  • Publication number: 20230398953
    Abstract: Provided is a panel capable of suppressing delamination of a base material and a surface material. The present invention provides a panel comprising a base material and a surface material, wherein the surface material is fixed inside a recessed part provided on the base material.
    Type: Application
    Filed: October 12, 2021
    Publication date: December 14, 2023
    Applicant: KYORAKU CO., LTD.
    Inventors: Kouichiro YOSHIDA, Yosuke HAYASHI, Takashi KOMENO, Yuki HARASAWA, Kentaro KUNIMORI
  • Patent number: 11833723
    Abstract: The present invention provides a process for producing a blow-molded foam including foamed cells, the process including: kneading a polyolefin-based resin containing a foaming agent mixed therewith in an extruder, and extruding a parison formed of the polyolefin-based resin between split mold blocks from a die slit at an extrusion rate of 700 kg/h or more.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: December 5, 2023
    Assignee: KYORAKU CO., LTD.
    Inventors: Masaaki Onodera, Takehiko Sumi, Teruo Tamada, Yu Igarashi, Yoshinori Ohno
  • Publication number: 20230364847
    Abstract: The present invention provides a double container capable of suppressing the deterioration of the gas barrier property under high humidity environment. According to the present invention, provided is a double container comprising a container body, wherein the container body has an outer shell and the inner bag, the container body is configured such that the inner bag contracts as content is reduced, and the inner bag comprises an inner layer, a gas barrier layer, and an outer layer, in order from an inside of the container body.
    Type: Application
    Filed: October 12, 2021
    Publication date: November 16, 2023
    Applicant: KYORAKU CO., LTD.
    Inventors: Yuhi KURAHASHI, Shinsuke TARUNO, Yosuke MUROYA
  • Publication number: 20230356905
    Abstract: A self-standing packaging bag for use in a microwave oven. The packaging bag is made of a flexible film formed into a bag shape, the packaging bag includes a bottom surface portion and a peripheral surface portion provided to rise from the bottom surface portion, the peripheral surface portion includes a front surface portion and a back surface portion facing each other and includes an opening that opens upward, the peripheral surface portion includes an openable member configured to open and close the opening, and an opening portion for opening the packaging bag, the opening portion is provided closer to the bottom surface portion than the openable member, a container-shaped main body portion obtained by tearing the peripheral surface portion in a circumferential direction at the opening portion and removing a tear-off portion above the opening portion is usable as a dish when eating contents in the packaging bag.
    Type: Application
    Filed: June 24, 2021
    Publication date: November 9, 2023
    Applicant: KYORAKU CO., LTD.
    Inventors: Masaaki SUEOKA, Shun MORIOKA, Yosuke MUROYA
  • Publication number: 20230271371
    Abstract: The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 31, 2023
    Applicant: Kyoraku Co., Ltd.
    Inventors: Akihiko WATANABE, Masaaki ONODERA
  • Patent number: 11701860
    Abstract: The present invention provides a structure that improves sound absorption coefficient. The present invention provides a structure comprising: a foam resin layer formed of a foam material having a foaming ratio of 1.1 to 8 times; and a sound absorbing layer formed of a foam material having a foaming ratio of 10 to 30 times, the sound absorbing layer laminated on the foam resin layer.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: July 18, 2023
    Assignee: KYORAKU CO., LTD.
    Inventor: Yoshinori Ono
  • Patent number: 11679537
    Abstract: Provided is a method for manufacturing a foam molded body that can make a shape of bubbles close to a perfect circle. According to the present disclosure, a method for manufacturing a foam molded body, including a step of forming a foam parison from a melt-kneaded resin obtained by melting and kneading a raw material resin and a foaming gas in a cylinder of an extruder and molding the foam parison to obtain the foam molded body, wherein the foaming gas contains 0.1 to 1.0% of argon, is provided.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 20, 2023
    Assignee: KYORAKU CO., LTD.
    Inventor: Yoshinori Ono
  • Publication number: 20230182644
    Abstract: Provided is a structure that makes it possible to reduce the number of components. The present invention provides a structure including a resin-molded body and a torsion spring. The resin-molded body includes a front wall and a rear wall spaced apart from each other and a peripheral wall connecting peripheries of the front wall and the rear wall. The resin-molded body includes first and second plate-shaped portions and a hinge portion. The first and second plate-shaped portions are rotatably coupled to each other with the hinge portion. The hinge portion is formed by making the rear wall concave toward the front wall to form a hinge concave portion and welding the rear wall to the front wall. The torsion spring includes first and second arms and a coil portion provided therebetween. The first arm is slidably supported by the first plate-shaped portion. The second arm is supported by the second plate-shaped portion.
    Type: Application
    Filed: April 21, 2021
    Publication date: June 15, 2023
    Applicants: KYORAKU CO., LTD., HAYASHI TELEMPU CORPORATION
    Inventors: Masaaki SUEOKA, Ryuichi ISHIDA, Takashi IMADA, Katsuki TANAKA, Kenta SUZUKI
  • Publication number: 20230182961
    Abstract: A double container according to the present invention comprises a container body having an outer shell and an inner bag, wherein: a mouth part of the container body is configured by lamination of the outer shell and the inner bag; the inner bag comprises a flange part at an upper end thereof in the mouth part, the flange part covering the upper end of the outer shell from above; and the flange part comprises a pull-out part for pulling the inner bag out of the outer shell.
    Type: Application
    Filed: September 15, 2021
    Publication date: June 15, 2023
    Applicant: KYORAKU CO., LTD.
    Inventor: Tetsuaki EGUCHI
  • Publication number: 20230174283
    Abstract: Provided is a hard container capable of appropriately discharging or spraying content. The present invention provides a resin-made hard container for use with a suction device attached thereto that is configured to discharge or spray suctioned content. The hard container is provided with a container body having an outer shell and an inner bag. The container body is configured such that the inner bag contracts as the content is reduced. An innermost layer of the outer shell comprises an EVOH layer.
    Type: Application
    Filed: April 26, 2021
    Publication date: June 8, 2023
    Applicant: KYORAKU CO., LTD.
    Inventors: Takayuki KATO, Takeru SANO, Kentaro UCHIHASHI
  • Patent number: 11643262
    Abstract: A delaminatable container is provided that includes a valve member allowing suppression of interference with the motion of a mobile part during use. The present invention provides a delaminatable container including an outer shell and an inner bag, the inner bag to be shrunk with a decrease in contents, wherein the outer shell includes a fresh air inlet communicating an external space with an intermediate space between the outer shell and the inner bag, the fresh air inlet has a valve member mounted thereto to regulate air communication between the intermediate space and the external space, the valve member includes a tube having a cavity provided to communicate the external space with the intermediate space and a mobile part movably stored in the cavity.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: May 9, 2023
    Assignee: KYORAKU CO., LTD.
    Inventor: Shinsuke Taruno
  • Patent number: 11628611
    Abstract: The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 18, 2023
    Assignee: Kyoraku Co., Ltd.
    Inventors: Akihiko Watanabe, Masaaki Onodera
  • Patent number: 11608420
    Abstract: A molded foam that can be easily taken out of split mold blocks is provided. According to an aspect of the present disclosure, a molded foam (1) is obtained by clamping, with split mold blocks, foamed resin obtained by melting and kneading a polyethylene-based resin, wherein the molded foam (1) has a MFR (190° C., g/10 min) of less than 0.8, or the polyethylene-based resin has a MFR (190° C., g/10 min) of not more than 1.0.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: March 21, 2023
    Assignee: KYORAKU CO., LTD.
    Inventors: Masaaki Onodera, Takeru Sano
  • Patent number: 11590683
    Abstract: A molding-forming method, a molding mold, and a molding production apparatus with which efficient burrs removal is possible without requiring a large apparatus. A molding production method includes, in addition to a molding being formed inside a mold, burrs formed around the molding are separated from the molding. After formation of the molding, air is blown inside the mold on at least a portion of the burrs formed around the molding to cool the same, a projecting member is projected toward the cooled burrs, and the burrs are separated from the molding. After pressing the burrs toward the projecting member by the air blowing, the burr is pressed toward the mold surface facing the projecting member by projection of the projecting member to separate the burr from the molding.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 28, 2023
    Assignee: KYORAKU CO., LTD.
    Inventors: Kengo Shimada, Tadatoshi Tanji, Naoto Tani, Masaaki Onodera