Patents Assigned to Daizo Corporation
  • Patent number: 9828170
    Abstract: An aerosol product comprising an aerosol container comprising a container body and an aerosol valve fixed to an opening of the container body, and an aqueous concentrate and a propellant being filled in the aerosol container, wherein the aqueous concentrate comprises an active ingredient having reactivity with oxygen, and an inert ingredient is present in at least a part of an injection passage of the aerosol valve, even though the aqueous concentrate comprising an active ingredient having reactivity with oxygen is filled, oxidation of the active ingredient is inhibited in the aerosol valve, and an aerosol product that can be stored stably for a long period of time and a method for manufacturing the same can be provided.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: November 28, 2017
    Assignee: Daizo Corporation
    Inventors: Kayo Nomura, Takashi Otomo, Shinya Takemoto, Satoshi Mekata
  • Patent number: 9527092
    Abstract: A nozzle hole mechanism (10) is provided with a nozzle hole (28) which ejects a concentrate into the atmosphere, a swirl chamber (30) which supplies the concentrate to the nozzle hole (28), and a path (27) which supplies the concentrate to the swirl chamber (30). The diameter of the nozzle hole (28) is 0.2 mm or less, the length of the nozzle hole (28) is in the range of 0.05-0.3 mm, and the swirl chamber (30) and the nozzle hole (28) are located on the same axis. The swirl chamber (3) is equipped with a front section having a solid cylindrical shape, which communicates with the nozzle hole, and a rear section having an ring shape. The nozzle hole mechanism is configured in such a manner that the concentrate is supplied to the rear section (30a) and discharged from the nozzle hole (28) via the front section (30b). The configuration enables the nozzle mechanism to spray fine particles over a wide area using small spray amount.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: December 27, 2016
    Assignee: DAIZO CORPORATION
    Inventors: Hidetoshi Miyamoto, Satoshi Mekata
  • Patent number: 9511381
    Abstract: [Problem to be solved] To provide a spray nozzle and an aerosol product in which the density difference between the center and the periphery is small. And to provide a spray nozzle and an aerosol product which give a spray pattern in which the spray density of peripheral portion does not decrease so much. [Solution] A nozzle 10 for an aerosol product, in which the shape along the spray direction of the spray pattern F becomes a semi parabolic shape. The nozzle 10 in which the spray pattern is planar or plate-like surrounded by a semi parabola-like shape and a center line C, and in which the planar spray thereof becomes a shape such that a plurality of sheets is arranged at an equal interval in a circumferential direction around the center C of the nozzle. The cross section of the spray pattern F can be formed into various shapes of an I type, a Y type, an X type, a V type, an S type etc according to the shape of slit passage of the front face of the nozzle 10.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: December 6, 2016
    Assignee: DAIZO CORPORATION
    Inventor: Tomoyuki Takahashi
  • Patent number: 9475636
    Abstract: A valve assembly in which contents respectively packed in multiple storage parts which cannot be reacted with each other in the middle of passage, an aerosol container equipped with the valve assembly, and an aerosol products are provided. An aerosol container comprises an outer container, two inner bags inserted into the outer container, and valve assembly which closes inner bags and outer container. The valve assembly comprises aerosol valves which are separated independently from each other and a holding member for holding the aerosol valves and for fixing the aerosol valves to the outer container.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 25, 2016
    Assignee: DAIZO CORPORATION
    Inventors: Satoshi Mekata, Hidetoshi Miyamoto, Masazumi Tanaka, Kazuhiro Yamaguchi
  • Publication number: 20160296959
    Abstract: This content-accommodating container comprises: a container body having an opening at the top end; and a valve-accommodating part for closing the opening, the valve-accommodating part being fixed to the container body. The valve-accommodating part is provided with: a cylindrical housing part accommodated inside the container body; a tube part extending downward from the housing part, the lower end thereof being disposed near the bottom side of the container body; and a first sealing part for closing the bottom end of the tube part.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 13, 2016
    Applicant: Daizo Corporation
    Inventors: Kazuhiro YAMAGUCHI, Kimio KATAOKA, Hidetoshi MIYAMOTO, Satoshi MEKATA
  • Publication number: 20160280449
    Abstract: Provided is a two fluid discharge container comprising: a container body; a piston partitioned by a first storage part and a second storage part, which are accommodated in the container body and are each to be filled with content, and a pressurized space to be filled with a pressurizing agent; and a valve mechanism that closes an opening in the container body, and has a passage through which the first storage part and the second storage part communicate. The first storage part and the second storage part are concentrically formed, and the contents of the first storage part and the second storage part are simultaneously pressurized by the piston so as to be discharged.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 29, 2016
    Applicant: Daizo Corporation
    Inventors: Satoshi MEKATA, Kimio KATAOKA
  • Patent number: 9446895
    Abstract: [Problem] Provided is a two-liquid dispenser storing two types of content, and capable of stably and equally discharging two liquids. [Solution] A two-liquid dispenser (10) is provided with: a pressure-proof container (11); a flexible inner container (12) housed in the pressure-proof container; a pouch (13) housed in the inner container; a valve assembly (14) to close the pressure-proof container (11), the inner container (12), and the pouch (13); a first content (A1) filed in the pouch; a second content (A2) filled in a first space (S1) between the pressure-proof container (11) and the inner container (12); and a propellant (P) filled in a second space (S2) between the inner container (12) and the pouch.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: September 20, 2016
    Assignee: DAIZO CORPORATION
    Inventor: Satoshi Mekata
  • Publication number: 20150166253
    Abstract: An aerosol product comprising an aerosol container comprising a container body and an aerosol valve fixed to an opening of the container body, and an aqueous concentrate and a propellant being filled in the aerosol container, wherein the aqueous concentrate comprises an active ingredient having reactivity with oxygen, and an inert ingredient is present in at least a part of an injection passage of the aerosol valve, even though the aqueous concentrate comprising an active ingredient having reactivity with oxygen is filled, oxidation of the active ingredient is inhibited in the aerosol valve, and an aerosol product that can be stored stably for a long period of time and a method for manufacturing the same can be provided.
    Type: Application
    Filed: March 28, 2013
    Publication date: June 18, 2015
    Applicant: DAIZO CORPORATION
    Inventors: Kayo Nomura, Takashi Otomo, Shinya Takemoto, Satoshi Mekata
  • Patent number: 8746512
    Abstract: A sealing structure which seals a container body and an aerosol valve without providing a seal member between them. An aerosol container employing the seal structure comprises a bottomed cylinder like container body and an aerosol valve firmly fixed to the opening of the container body. The seal structure between the container body of the aerosol container and the aerosol valve is formed of a valve support portion of the container body and a step portion of the aerosol valve. The aerosol container is manufactured by deforming a corner of the step portion into a curved surface shape from a square shape by applying an annular force to the step portion from a convex surface by plastically deforming a lower part of a cover cap and a part of the container body while pushing the cover cap downward.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: June 10, 2014
    Assignee: Daizo Corporation
    Inventors: Hidetoshi Miyamoto, Keiichiro Teramoto, Tatsuya Nakamuro, Masaomi Takahashi
  • Publication number: 20130164226
    Abstract: There is provided a foamable aerosol composition which is easily emulsified by shaking a container thereof even in the case where poorly water-soluble active ingredients are blended therein at a high concentration, and thus can be sprayed as a uniform composition. The foamable aerosol composition comprises a concentrate and a liquefied gas, wherein, the concentrate comprises active ingredients, surfactants, a monovalent alcohol having 2 to 3 carbon atoms and water, the surfactants comprise polyoxyethylene-added fatty acid ester and a nonionic surfactant having HLB of 8 to 19, the liquefied gas is a poorly water-soluble liquefied gas, a ratio of the concentrate to the liquefied gas is 60/40 to 10/90 (weight ratio), and the concentrate and the liquefied gas are emulsified.
    Type: Application
    Filed: September 9, 2011
    Publication date: June 27, 2013
    Applicant: DAIZO CORPORATION
    Inventor: Ryota Nakamoto
  • Publication number: 20130078191
    Abstract: There is provided an aerosol composition which is high in fire safety and assures easy emulsification of an aqueous concentrate and a liquefied gas. The aerosol composition comprises 10 to 60 wt % of an aqueous concentrate and 40 to 90 wt % of a liquefied gas, and is obtained by emulsifying the aqueous concentrate and the liquefied gas, wherein the liquefied gas comprises a heavy liquefied gas (a) having a liquid density at 20° C. of from 1.15 to 1.30 (g/ml).
    Type: Application
    Filed: June 13, 2011
    Publication date: March 28, 2013
    Applicant: DAIZO CORPORATION
    Inventors: Keiichiro Teramoto, Fuminori Okano, Atsushi Wagamitsu
  • Patent number: 7131602
    Abstract: The present invention provides an aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles. More specifically, the aerosol product, which sprays a large number of independent bubbles in the form of soap bubbles, is provided by charging an aerosol container with an aerosol composition obtained by emulsifying an aqueous concentrate and a liquefied gas.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: November 7, 2006
    Assignee: Daizo Corporation
    Inventors: Takashi Otomo, Masatsugu Matsuura
  • Patent number: 6651847
    Abstract: A pressurized container A for under-cup charging which comprises a container main body 1 equipped with a bead portion 6 at a periphery of an opening at its upper end, a mounting cup 18 having a curved flange 18d which engages with the bead portion 6, a flexible inner bag which is interposed between the container main body 1 and the mounting cup 18. The inner bag 2 is equipped with a neck portion which abuts tightly against an outer peripheral surface of a rising wall of the mounting cup with predetermined fitting strength and a flange portion 11 which is disposed at the upper end of the neck portion and clamped between the curved flange and the bead portion. The flange portion 11 exhibits a sealing function when pressed to the inner surface of the curved flange 18d with a charging pressure at the time of under-cup charging and also when clamped between the curved flange 18d and the bead portion 6 after assembly.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: November 25, 2003
    Assignee: Daizo Corporation
    Inventors: Satoshi Mekata, Masazumi Tanaka
  • Patent number: 6581807
    Abstract: The present invention provides an aerosol product able to surely spray constant amount of an aerosol composition comprising powder. An aerosol container having a liquid storage part in a passage from the interior of the container body to a nozzle of an aerosol valve system and a valve shut out the liquid storage part from the interior of the container body with spraying operation.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: June 24, 2003
    Assignee: Daizo Corporation
    Inventor: Satoshi Mekata