Patents Assigned to Kyoraku Co. Ltd.
  • Foam molding resin and method for manufacturing foam molded article
    Patent number: 10988592
    Abstract: It is an object of the present invention to provide a foam molding resin containing LDPE capable of enhancing foaming magnification. According to the present invention, there is provided a foam molding resin containing low-density polyethylene, wherein the low-density polyethylene has a melt tension of 100 to 250 mN and a shear viscosity of 350 to 450 Pa·s.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 27, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Takaaki Someya, Takeru Sano
  • Foamed structure, resin panel, method of manufacturing resin panel, method of manufacturing resin laminated body and foamed body
    Patent number: 10974436
    Abstract: The first aspect of the present invention provides a foamed structure, comprising: a first foamed body extending in a first direction; a second foamed body extending in the first direction and facing the first foamed body with a gap interposed therebetween; and a reinforcement disposed in the gap between the first foamed body and the second foamed body, the reinforcement having an elongated shape, wherein the first foamed body has a portion overlapping with the second foamed body in the first direction view.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: April 13, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Takafumi Funato, Sho Nakajima, Kazuhiko Saeki, Kenji Ishii, Ryuichi Ishida, Ryosuke Oki, Tatsuya Fukuda, Yuki Harasawa
  • Delaminatable container
    Patent number: 10974885
    Abstract: The delaminatable container is capable of suppressing deterioration of the contents under high-temperature environment. The delaminatable container includes a container body; and a tubular outer case being installed in the container body; wherein: the container body includes an outer shell and an inner bag, and the inner bag shrinks as contents decrease.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 13, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Yoshio Yamauchi, Teruhisa Hanafusa, Kouichiro Yoshida, Yusuke Hiraina
  • Container for microwave oven and package for microwave oven
    Patent number: 10968028
    Abstract: The objective of the present invention is to provide a container for microwave oven and a package for microwave oven in which a clearance which is formed between a flanged portion and a lid material and a content may enter is made narrower while maintaining automatic vapor discharge function.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: April 6, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Shinji Ishikawa, Tomohiro Yuhara
  • Cap and delaminatable container
    Patent number: 10954043
    Abstract: A cap with improved usability is provided. The present invention provides a cap including a cap body to be fitted to a mouth of a container, wherein the cap is configured to include: a valve seat having a flow aperture; a valve body to be separated from or seated on the valve seat so as to open and close the flow aperture; and a biasing member to bias the valve body in a seating direction, and configured to increase a flow area in which contents flow with an increase in a displacement of the valve body, and the cap further includes a displacement restricting section to restrict the displacement of the valve body.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: March 23, 2021
    Assignee: KYORAKU CO., LTD.
    Inventor: Shinsuke Taruno
  • Delaminatable container
    Patent number: 10947001
    Abstract: A delaminatable container excellent in productivity is provided. According to an exemplary aspect, a delaminatable container, includes a container body having an outer shell and an inner bag, the inner bag delaminating from the outer shell and being shrunk with a decrease in contents, wherein the container body includes a bottom seal protrusion protruding from a bottom surface of a storage portion to store the contents, and the bottom seal protrusion is a sealing portion of, in blow molding using a cylindrical laminated parison provided with an outer layer constituting the outer shell and an inner layer constituting the inner bag, the laminated parison and is bent.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 16, 2021
    Assignee: KYORAKU CO., LTD.
    Inventor: Shinsuke Taruno
  • Mold clamping device
    Patent number: 10940615
    Abstract: Provided is a mold clamping device that can simplify the component count or structure by including a mold thickness adjustment mechanism that reduces the load on a power source, is easily maintained, and has high design flexibility. Also provided is a mold clamping device that can set a long distance (daylight) between molds without having to upsize the entire mold clamping device and can simplify the component count or structure. A mold clamping device for split molds includes a first platen, a second platen, a pressure receiving platen, and a mold thickness adjustment mechanism disposed on the pressure receiving platen. At least one of the first platen and the second platen is able to move back and forth so as to approach or depart from the other. The pressure receiving platen is located on a side remote from the first platen, of the second platen.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 9, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Yoshinori Ono, Kengo Shimada, Yosuke Muroya, Shuji Ito
  • Blow-molded foam and method of forming the same
    Patent number: 10941264
    Abstract: A blow-molded foam is provided by foaming and blow-molding the resin material including a polyethylene resin. The foamed resin includes the antioxidant by 300 ppm or more in total. The antioxidant is preferably the combination of a phosphorus antioxidant and a phenolic antioxidant. The optimum amount of phosphorus antioxidant to be included is 250 ppm to 3000 ppm, and that of phenolic antioxidant is 250 ppm to 750 ppm. In the manufacture, the collected resin material and the resin including 300 ppm or more of the antioxidant are melted and kneaded and the foaming agent is mixed thereto to provide the foamed resin, and the foamed resin is blow-molded.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 9, 2021
    Assignee: Kyoraku Co., Ltd.
    Inventor: Takeru Sano
  • Method for manufacturing foam molded body
    Patent number: 10940620
    Abstract: A method for manufacturing a foam molded body which can allow the foam resin sheet to follow the shape of the cavity of the mold with high accuracy even when the thickness of the foam resin sheet is thick. The method includes an arranging step to arrange one sheet of a foam resin sheet between first and second molds, the foam resin sheet being formed by extruding and dangling a molten foam resin from a slit; and an expanding step to expand the foam resin sheet by subjecting the foam resin sheet to a reduced pressure suction.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 9, 2021
    Assignee: KYORAKU CO., LTD.
    Inventors: Yoshihiro Yamasaki, Teruo Tamada, Yu Igarashi, Yuta Minamigawa
  • Hollow molded article
    Patent number: 10894117
    Abstract: Disclosed is a hollow molded article which has an opening portion communicating with a flow channel and which can be manufactured simply. The hollow molded article includes a panel and flow channels. The panel includes a first resin sheet and a second resin sheet partly welded with the first resin sheet. The flow channels are disposed between the first resin sheet and the second resin sheet, and include connection portions for external connection which are disposed on a peripheral edge of the panel. The connection portions are formed by the first resin sheet and the second resin sheet.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: January 19, 2021
    Assignee: Kyoraku Co., Ltd.
    Inventors: Daisuke Yamazaki, Ryosuke Oki, Tomohiro Taniguchi
  • METHOD FOR MANUFACTURING FOAM MOLDED BODY
    Publication number: 20200398463
    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: Application
    Filed: March 22, 2019
    Publication date: December 24, 2020
    Applicant: KYORAKU CO., LTD.
    Inventor: Yoshinori ONO
  • Molten-resin extrusion device and extrusion method as well as molten resin molding machine and molding method
    Patent number: 10864669
    Abstract: Provided is a method for extruding molten resin in a charging space from a head by converting a rotational motion of an electric motor into a linear motion of a piston disposed in the charging space through a ball screw and thus causing the piston to move vertically, the charging space being a space into which the molten resin can be charged and formed in an accumulator, the head having an extrusion port at a lower end thereof.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: December 15, 2020
    Assignee: KYORAKU CO., LTD.
    Inventors: Shuji Ito, Satoshi Masuda
  • FLOAT ASSEMBLY
    Publication number: 20200369350
    Abstract: The present invention has been made in view of the foregoing, and an object thereof is to provide a float assembly that is configured to be rotatable and that defines a rotation axis without constructing the expensive pillar. The present invention provides a float assembly configured to float on water, comprising: a shaft wire extending from substantially a center of the float assembly toward underwater and configured to maintain tension, wherein the float assembly is moored by the shaft wire and configured to be rotatable.
    Type: Application
    Filed: January 23, 2019
    Publication date: November 26, 2020
    Applicant: KYORAKU CO., LTD.
    Inventors: Hirofumi NAGAI, Yasunobu UEDA, Tsutomu SAKAGUCHI
  • Solar panel float and connected member thereof
    Patent number: 10848094
    Abstract: The present invention provides a solar panel float in which an increase in the number of components is prevented and which is easy to assemble. A float for mounting a solar panel is provided with: an annular float portion; a first support portion that supports an edge on one side of the solar panel; and a second support portion that supports an edge on the other side of the solar panel. The first support portion includes a first support plate portion rising from a wall surface on one side of an inner periphery of the annular float portion. The first support plate portion is formed of a cut-and-raised piece that has been cut and raised, from a flat plate portion integrally formed so as to close the inner periphery during molding of the annular float portion, using a lower-side portion of the flat plate portion as a bending-fulcrum point.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: November 24, 2020
    Assignee: KYORAKU CO., LTD.
    Inventor: Takaya Niimi
  • Foamed structure and resin panel
    Patent number: 10836093
    Abstract: A resin panel according to an embodiment includes a core material, a reinforcing material, a skin material covering the core material and the reinforcing material, and a fastened member. A reinforcing material has a first plate provided on a front surface of the core material, a second plate provided on a back surface of the core material, and a connecting plate connecting the first plate and the second plate. The fastened member is attached to the skin material by a fastening member penetrating the skin material and the first plate or the second plate of the reinforcing material.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: November 17, 2020
    Assignee: Kyoraku Co., Ltd.
    Inventors: Masaaki Sueoka, Tatsuya Fukuda, Tadatoshi Tanji, Kenji Iwasaki, Ryosuke Oki
  • Delaminatable container
    Patent number: 10822135
    Abstract: A delaminatable container, including: a container body; and a press-fit cap mounted to the container body. The container body is configured to include a storage portion to store contents and a mouth having an opening to discharge the contents from the storage portion, the storage portion and the mouth having an outer layer and an inner layer, and having an inner bag composed of the inner layer to be shrunk with a decrease in the contents, the mouth includes a mouth-side engagement section provided along an outer circumferential surface of the mouth, the cap includes a cap-side engagement section provided along an inner circumferential surface of the cap, the mouth-side engagement section and the cap-side engagement section are configured to be engageable with each other while the cap is mounted to the mouth.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: November 3, 2020
    Assignee: KYORAKU CO., LTD.
    Inventors: Shinsuke Taruno, Tetsuaki Eguchi, Tatsuro Aoki
  • Method of manufacturing a resin-laminated board
    Patent number: 10821700
    Abstract: A method of manufacturing a resin-laminated board by preparing a pair of first and second split molds each of which is provided with a cavity; positioning two sheet materials made of a thermoplastic resin between the first and second split molds with the cavities of the first and second split molds opposed to each other; forming a plurality of recesses by recessing a first sheet material toward a second sheet material with use of a plurality of protrusions provided to the first split mold; and welding bottoms of the recesses to the second sheet material by clamping the pair of first and second split molds to obtain a resin-laminated board with a hollow structure. A mold includes a plurality of piece members, disposed at the cavity of the first split mold; and includes the protrusions and male screws provided to base ends of the protrusions.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 3, 2020
    Assignee: KYORAKU CO., LTD.
    Inventors: Yoshitaka Matsubara, Tadatoshi Tanji
  • FLOAT, FLOAT ASSEMBLY, AND METHOD FOR INSTALLING FLOAT ASSEMBLY
    Publication number: 20200331570
    Abstract: Present invention provides a float capable of suppressing deformation of the synthetic resin body even if internal gas expands and contracts due to environmental temperature change. A float 10 comprises a float body 20 made of a synthetic resin molded in a hollow shape, a projecting portion 202 projecting from the upper surface of the float body 20 and having a vent hole 201, and a microporous membrane 203 adhered to the outside of the vent hole 201.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Applicant: KYORAKU CO., LTD.
    Inventors: Takaya NIIMI, Yoshinori MOTOHASHI, Tsutomu SAKAGUCHI
  • CONTAINER FOR MICROWAVE OVEN
    Publication number: 20200324957
    Abstract: An object is to provide a microwave container configured to precisely discharge vapor from a vapor-discharging part to avoid any vapor discharge from the remaining portions, and the microwave container includes: a container main body having an opening in its upper portion; a flange part formed to extend outwardly from the opening of the container main body; and a heat-seal part in a rib shape formed over the entire periphery of an upper surface of the flange part and heat-sealed to a film-shaped lid member for sealing the opening, wherein the heat-seal part includes a first heat-seal part for discharging vapor generated in the container main body by breaking the heat seal with the lid member when the vapor reaches a predetermined pressure, and a second heat-seal part wider than the first heat-seal part.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 15, 2020
    Applicant: KYORAKU CO., LTD.
    Inventors: Shinji ISHIKAWA, Kumio MARUYAMA
  • Method of manufacturing foam molded article
    Patent number: 10780623
    Abstract: A method of manufacturing a foam molded article is disclosed. The method includes the steps of extruding a molten, kneaded resin containing a foaming agent through an annular slit between a die core and a die shell, surrounding the die core to form a cylindrical foam parison, extruding the parison between a pair of split molds, pinching the parison between lower pinchers disposed under the split molds, and molding the parison by closing the split molds. H/D is 1.33 to 3.33 and L/D is 0.33 to 2.00, D being a die core diameter, H being a distance between a lower surface of the die core and an upper surface of each of the split molds, and L being a distance between a lower surface of each of the split molds and an upper surface of the corresponding lower pincher. The die core diameter is between 50 and 300 mm.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 22, 2020
    Assignee: KYORAKU CO., LTD.
    Inventors: Masaaki Onodera, Yoshinori Ono, Yu Igarashi