Patents Assigned to Yoshino Kogyosho Co., Ltd.
  • Publication number: 20210197996
    Abstract: According to the present invention, there is provided a bottle formed of a synthetic resin material in a cylindrical shape with a bottom, the bottle includes a bottom portion which includes a bottom wall portion and a heel portion, in which the bottom wall portion includes an inner peripheral wall portion and a depressed wall portion, a plurality of concave portions are formed on the inner peripheral wall portion, the plurality of concave portions are located on the inner peripheral wall portion at least in a portion including a lower end edge of the inner peripheral wall portion, a plurality of convex portions are formed at a connecting portion between the inner peripheral wall portion and the depressed wall portion, and the plurality of concave portions and the plurality of convex portions are provided alternately in the circumferential direction.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Tadayori NAKAYAMA
  • Patent number: 11045992
    Abstract: A liquid blow molding method includes: a preliminary pressurizing step of operating a pressure feeding source to preliminary pressurize a liquid between the pressure feeding source and a blow nozzle; an operating condition setting step of setting an operating condition of the pressure feeding source on the basis of data acquired by the preliminary pressurizing step; a blow molding step of liquid blow molding a preform into a container of a predetermined shape; and a suck-back step of operating the pressure feeding source in a reverse direction on the operating condition set in the operating condition setting step to suck back the liquid from inside of the container molded into a predetermined shape in the blow molding step toward inside of the blow nozzle.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 29, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Yuichi Okuyama, Kenichi Suyama
  • Patent number: 11045821
    Abstract: A trigger type liquid ejector includes an ejector main body having a vertical supply pipe, an ejection barrel, a trigger mechanism having a main piston and a main cylinder, a reservoir cylinder, a reservoir plunger, a first check valve configured to block communication between a container body and the vertical supply pipe when the main cylinder is pressurized and allow communication when the main cylinder is decompressed, and a second check valve configured to allow communication between an ejection hole and the vertical supply pipe when the main cylinder is pressurized and block communication when the main cylinder is decompressed, and a communication path is provided between the main piston and the main cylinder and is configured to bring the main cylinder in communication with the container body when the main piston is moved to a position deviated rearward from a frontmost position.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: June 29, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Yoshiyuki Kakuta
  • Publication number: 20210188525
    Abstract: A dispenser for aerosol containers includes: a nozzle; and a cover including an operating portion. One of the operating portion and the nozzle includes a sliding portion capable of depressing the nozzle to a predetermined depression position together with a plurality of stems while sliding on a slid portion provided at an other one of the operating portion and the nozzle to a termination, with a depression operation on the operating portion. A vibration generation portion that generates vibration as a result of entry of the sliding portion is provided at the termination of the slid portion.
    Type: Application
    Filed: September 3, 2018
    Publication date: June 24, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Mitsuo FURUSAWA
  • Publication number: 20210188474
    Abstract: A double container includes: an outer layer body including an outer mouth portion and a barrel portion; an inner layer body including an inner mouth portion and a containing portion; an outside air introduction port for introducing outside air; and a plurality of vertical ribs arranged with spacing in a circumferential direction on an inner surface of the outer layer body or an outer surface of the inner layer body, and each extending over the outer mouth portion to the shoulder portion or extending over the inner mouth portion to the containing portion, wherein at least one of the plurality of vertical ribs faces the outside air introduction port.
    Type: Application
    Filed: August 10, 2018
    Publication date: June 24, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Masato SUZUKI, Junichi CHIBA, Masaaki SASAKI
  • Patent number: 11040803
    Abstract: The laminated tube container has a tube body that includes a light blocking layer between an innermost layer and an outermost layer made of resin. The tube body has a butted portion in which both side edges of a laminated sheet constituting the tube body butt against each other and a reinforcing tape portion provided on an inner surface of the tube body along the butted portion. The reinforcing tape portion has a pair of resin layers and an intermediate layer that includes an aluminum layer and is disposed between the pair of resin layers.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 22, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Kazuhiro Hashimoto
  • Publication number: 20210178651
    Abstract: A liquid blow molding method of molding a liquid container containing a content liquid from a preform, includes a nozzle engagement step of engaging a blow nozzle with a mouth portion of the preform; a molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform; a suck-back step of sucking back a predetermined amount of liquid from the inside of the container to a supply channel by operating a pump in a reverse direction with the container put in the upside-down posture while the blow nozzle is engaged with the mouth portion; and a nozzle separation step of separating the blow nozzle from the mouth portion with the container put in the upright posture.
    Type: Application
    Filed: October 3, 2018
    Publication date: June 17, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Mitsuru SHIOKAWA, Yuichi OKUYAMA
  • Publication number: 20210178652
    Abstract: A liquid container manufacturing method includes: a liquid blow molding step of molding a preform into a liquid container having a shape conforming to an inner surface of a blow-molding mold, by supplying a pressurized liquid to an interior of the preform through a supply path in a state where a blow nozzle is engaged to a mouth of the preform; and a headspace forming step of forming a headspace in the liquid container, by discharging the liquid from an interior of the liquid container through a discharge port in a discharge rod extending to the interior of the liquid container through the blow nozzle, by introducing a pressurized gas to the interior of the liquid container through a gas inflow path in a state where the supply path is closed.
    Type: Application
    Filed: June 25, 2019
    Publication date: June 17, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Hideaki HOSHINO, Mitsuru SHIOKAWA
  • Publication number: 20210154907
    Abstract: A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion being foldable when the body is flattened in a thickness direction and extending in a circumferential direction of the body, the method including a liquid blow molding step of molding a container filled full with a liquid in a storage space by placing a preform in a mold and performing liquid blow molding; and a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the container, the body is deformed in a direction in which a thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.
    Type: Application
    Filed: May 7, 2018
    Publication date: May 27, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Toshimasa TANAKA
  • Patent number: 11014281
    Abstract: A liquid blow molding method molds a bottomed tubular-shaped preform into a liquid containing container. The method includes a nozzle engaging step of engaging a blow nozzle with a mouth of the preform; a molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid from a pump into the preform; a suck-back step of sucking back a predetermined volume of liquid out of the container into a supply path; a nozzle closing step of closing the blow nozzle by a sealing body; and a discharge step of discharging a liquid in the supply path by a predetermined volume from a discharge port by operating, after the nozzle closing step, a pump in a positive direction with the discharge port connected to the supply path opened.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: May 25, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Masato Suzuki, Mitsuru Shiokawa
  • Patent number: 11008155
    Abstract: A double container includes an outer layer body constituting an outer shell; an inner layer body including an upper opening communicating with a containing space, accommodated in the outer layer body, and deformable to undergo volume reduction; an inside plug including a tubular wall extending toward the containing space, a spherical body serving as a valve body being disposed inside the tubular wall; and a dispensing plug fitted to a mouth portion of the outer layer body and including a dispensing tube connected to the tubular wall. The tubular wall includes an inclined wall having a diameter decreasing toward the containing space and configured to abut against the spherical body over an entire circumference and including a protruding wall protruding from the inclined wall to the containing space. The protruding wall includes a liquid holding member holding a pool of liquid medium of the content formed below the spherical body.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 18, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Takayuki Abe, Mitsuo Furusawa
  • Publication number: 20210139185
    Abstract: A synthetic resin container including a mouth, a shoulder, a body and a bottom and forming a space for accommodating contents, in which the shoulder is provided with a pair of protruding ribs configured to be disposed opposite to each other on a front side and a rear side across a central axis line of the container and to be foldable when the shoulder is flattened; the pair of protruding ribs are each formed into a curved shape with central portions protruded toward the mouth side in a front view or a rear view; and both ends of one of the pair of protruding ribs are connected to both ends of another one of the pair of protruding rib, respectively, at intermediate positions of the shoulder.
    Type: Application
    Filed: June 4, 2018
    Publication date: May 13, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Toshimasa TANAKA
  • Patent number: 10988277
    Abstract: A synthetic resin container and a preform that can suppress increase in size of a mouth and can improve stability when a mouth is transferred by being gripped by a gripper. A synthetic resin container includes a tubular mouth and forms an accommodation space for contents. An outer circumferential surface of the mouth is provided with a gripper engaging groove to be engaged with a gripper of a transfer apparatus, the gripper engaging groove is formed such that a width of the groove of an opening opened in the outer circumferential surface of the mouth is decreased from an opening toward a bottom of the groove, and the gripper engaging groove corresponds to a shape of the gripper and has an upper side inclination and a lower side inclination respectively obliquely extending with respect to a plane perpendicular to an axis of the mouth.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: April 27, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Yuichi Okuyama, Mitsuru Shiokawa
  • Patent number: 10974438
    Abstract: A container production method by liquid blow molding. The method includes a pushing step in which a liquid is collected from a preform at the timing at which the pressure inside of the preform starts rising by pushing of the expanded and deformed preform by a movable mold portion of a blow molding mold so that the rise in the pressure is suppressed or prevented.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: April 13, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Kenichi Suyama, Yuichi Okuyama
  • Patent number: 10946574
    Abstract: The present invention discloses a discharge container that is provided with the following: a container body in which contents are stored; a securing member; a discharge vessel including a stem; an exterior section including a top wall section penetrated by molded holes and that discharges the contents from the perforation holes onto a discharge surface of the top wall section; and an inner plate which is provided so as to be freely movable inside the exterior section and which forms a diffusion chamber in the space that is formed with a supply surface of the top wall section.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 16, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventor: Mai Kase
  • Patent number: 10940631
    Abstract: A liquid blow molding method of molding a preform into a liquid-containing container includes: a first nozzle descending step of descending a blow nozzle to a first position at which the blow nozzle does not seal the mouth part; a gas-liquid replacement step of supplying a liquid into the preform from the blow nozzle at the first position and discharging air inside the preform to outside; a second nozzle descending step of descending the blow nozzle to a second position at which the blow nozzle seals the mouth part, after the gas-liquid replacement step; and a blow molding step of supplying the liquid into the preform from the blow nozzle at the second position to blow mold the preform into the predetermined shape.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: March 9, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Yuichi Okuyama, Mitsuru Shiokawa, Hiroki Murakami
  • Patent number: 10940632
    Abstract: A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, the method including: an air-liquid replacement step of exhausting the air inside the preform to the outside while a liquid is supplied into the preform from the mouth portion through a blow nozzle; an air-liquid separation step of separating the air from the liquid inside the preform by rotating the preform about an axial center of the mouth portion; and a blow molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform from the mouth portion through the blow nozzle, after the air-liquid separation step.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: March 9, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Mitsuru Shiokawa, Yuichi Okuyama
  • Publication number: 20210060845
    Abstract: A liquid blow molding device includes: a supply block including a supply path; a blow nozzle detachably attached to the supply block; a pressurized liquid supply unit configured to supply the pressurized liquid to the blow nozzle; an annular-shaped sealing surface that is provided in a portion of the supply block that is located between an inner circumferential surface defining the supply path and the outlet and that surrounds an entire circumference of the outlet; and a sealing body that is disposed inside the supply path and that is displaceable between a closing position, in which the sealing body abuts against the sealing surface to close the outlet, and an opening position, in which the sealing body is spaced from the sealing surface to open the outlet.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 4, 2021
    Applicant: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Mitsuru SHIOKAWA, Hideaki HOSHINO, Yuichi OKUYAMA
  • Patent number: 10933573
    Abstract: A liquid blow molding apparatus comprises: a mold (4) in which a preform (2) is to be placed; and a nozzle unit (6) having a supply port (9) capable of supplying a liquid from above into the preform (2) placed in the mold (4), wherein the nozzle unit (6) includes a seal body (13) that is movable among a closed position at which supply of the liquid through the supply port (9) is blocked, a first open position at which supply of the liquid through only part of the supply port (9) in a circumferential direction is allowed, and a second open position at which supply of the liquid through the whole supply port (9) in the circumferential direction is allowed.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: March 2, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Shinichi Tabata, Mitsuru Shiokawa
  • Patent number: 10934048
    Abstract: A synthetic resin container that is formed in a bottle shape having a mouth and a trunk and that is provided in the trunk with at least one reduced pressure absorbing panel. The trunk has a density of 1.3695 g/cm3 or more, and a ratio of a crystal orientation in a transverse direction with respect to a total value of a crystal orientation in a machine direction and the crystal orientation in the transverse direction in the trunk is less than 44%.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: March 2, 2021
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Yuichi Okuyama, Mitsuru Shiokawa