Patents Assigned to KOA Glass Co., Ltd.
  • Patent number: 11174187
    Abstract: The present invention relates to a glass container having multiple concavities at the bottom plane of a mouth provided with a rim, and a one-press method for producing a glass container, by which such a glass container can be produced with high yield.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: November 16, 2021
    Assignee: KOA Glass Co., LTD
    Inventor: Masahiro Takahashi
  • Patent number: 11006634
    Abstract: An antimicrobial glass tablet that releases silver ions when brought into direct contact with water, containing: Ag2O within the range of above 5% by weight but less than 10% by weight, ZnO below 10% by weight, P2O5, CaO, K2O, Al2O3, and MgO.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: May 18, 2021
    Assignee: KOA Glass Co., Ltd.
    Inventors: Yoshinao Kobayashi, Kunihiko Nemoto
  • Patent number: 10968131
    Abstract: Provided is a method for manufacturing a glass container with which a glass container having a distinctively shaped inner space and excellent aesthetic appearance can be manufactured in good yield. The method for manufacturing a glass container includes steps (A) to (E). (A) A step of introducing a gob into a mold through a funnel. (B) A step of blowing air into the mold through the funnel, bringing a plunger disposed on a side opposite the side to which the funnel is fitted in contact with the gob, separating the plunger from the gob, and forming a recess on the surface of the gob. (C) A step of removing the funnel from the mold and fitting a baffle to the mold. (D) A step of blowing air from the plunger, and forming an inner space inside the gob with the recess as a starting point while simultaneously forming an outer shape by pressing the outer side of the gob to a molding surface of the mold to obtain a glass container of the final shape.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 6, 2021
    Assignee: KOA GLASS CO., LTD.
    Inventors: Masahiro Takahashi, Shotaro Takahashi, Naomasa Saito
  • Patent number: 10640409
    Abstract: There is provided a method of manufacturing a glass container that can manufacture a glass container, which includes a bubble formed in a bottom portion and independent of the outside, with high yield by accurately controlling the position and size of the bubble.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: May 5, 2020
    Assignee: KOA GLASS CO., LTD.
    Inventors: Yuya Sasaki, Kenjirou Arai
  • Patent number: 10494133
    Abstract: A white glass container derived from a phase separation phenomenon of a halogen-free glass composition includes a neck portion and a body portion. The glass composition includes as ingredients at least SiO2, P2O5, Al2O3, B2O3, R2O (R?Na or K), MgO, CaO and the like. The neck portion and the body portion respectively have a white multilayer structure formed to successively include a white transparent layer of relatively low white coloration and a white opaque layer of relatively high white coloration from the outer surface side. The contents of P2O5 in the white transparent layer are made smaller than the contents of P2O5 in the white opaque layer.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 3, 2019
    Assignee: KOA GLASS CO., LTD.
    Inventors: Yoshiaki Kamiya, Naoki Nakamura
  • Patent number: 10202216
    Abstract: A decorative glass container has clear boundary lines and good adhesion properties, and has a lower layer including a thick wall portion and a thin wall portion, a vapor-deposition layer patterned by a forming region and a non-forming region, and an overcoat layer made of a UV curable resin, on the upper part of the glass container in order. A method for manufacturing the decorative glass container, in which the forming region of the vapor-deposition layer is disposed on the upper part of the thick wall portion of the lower layer, the non-forming region of the vapor-deposition layer is disposed on the upper part of the thin wall portion of the lower layer, and a contact region is provided in which the lower layer and the overcoat layer are in direct contact with each other by way of the non-forming region of the vapor-deposition layer.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 12, 2019
    Assignee: KOA GLASS CO., LTD.
    Inventor: Kunihiro Fushimi
  • Publication number: 20180215643
    Abstract: The present invention relates to a glass container having multiple concavities at the bottom plane of a mouth provided with a rim, and a one-press method for producing a glass container, by which such a glass container can be produced with high yield.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 2, 2018
    Applicant: KOA GLASS CO., LTD
    Inventor: Masahiro TAKAHASHI
  • Patent number: 9969642
    Abstract: There are provided a one-press manufacturing method for a glass container that can form uneven shapes on an inner peripheral surface of a glass container and a glass container that is obtained by the one-press manufacturing method.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: May 15, 2018
    Assignee: KOA GLASS CO., LTD
    Inventors: Tsuyoshi Sato, Daisuke Date
  • Publication number: 20180037811
    Abstract: A glass-coated light-accumulating material having excellent water resistance and having excellent luminescence properties for a long time period, and an efficient method for producing such a glass-coated light-accumulating material are provided. Disclosed are a glass-coated light-accumulating material formed by incorporating a metal aluminate salt as a light-accumulating material into a glass component including a zinc phosphate glass as a main component; and a method for producing such a glass-coated light-accumulating material, in which the zinc phosphate glass includes P2O5, ZnO, and R2O (wherein R?Na or K) as main components, and the melting point of the zinc phosphate glass is adjusted to a value within the range of 600° C. to 900° C.
    Type: Application
    Filed: August 26, 2016
    Publication date: February 8, 2018
    Applicant: KOA GLASS CO., LTD.
    Inventors: Yoshinao KOBAYASHI, Kunihiko NEMOTO
  • Patent number: 9458046
    Abstract: The present invention provides a white glass container which does not contain a fluorine compound in a significant amount, which has a multi-layer structure derived from a phase separation phenomenon of a glass composition in part or the whole of the white glass container without depending on melting conditions or molding conditions of the glass composition, and which is excellent in mechanical strength or whiteness, and a method of efficiently manufacturing the white glass container.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: October 4, 2016
    Assignee: KOA GLASS CO., LTD.
    Inventors: Yoshiaki Kamiya, Michiko Takahashi
  • Patent number: 9017708
    Abstract: A mixed antibacterial glass which stably controls the silver ion elution amount from the antibacterial glass into the drain water in an air conditioning system, thereby effectively preventing the occurrence of microorganisms in the drain water. The mixed antibacterial glass achieves antibacterial effect by releasing silver ions, and contains an antibacterial glass which shows alkalinity when dissolved, and another antibacterial glass which shows acidity when dissolved, the silver ion elution amounts from the antibacterial glasses showing alkalinity or acidity being within certain ranges as measured under certain conditions, the compounding amount of the antibacterial glass showing alkalinity being from 10 to 100 parts by weight with reference to 100 parts by weight of the antibacterial glass showing acidity, and the total silver ion elution amount being within a certain range as measured under certain conditions.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: April 28, 2015
    Assignee: Koa Glass Co., Ltd.
    Inventors: Yoshinao Kobayashi, Takashi Fushimi, Noriyuki Nishiyama, Satoshi Niigawa
  • Patent number: 8753657
    Abstract: The present invention relates to an antibacterial resin composition derived from a master batch, an antibacterial fiber, an antibacterial film, and a producing method of an antibacterial resin composition therefrom, comprising a polyethylene terephthalate resin as the component (A), and a polybutylene terephthalate resin as the component (B), an antibacterial glass which elutes silver ions as a component (C), which is characterized by having a composition formulated below (A) a polyethylene terephthalate resin: 100 pbw (B) a polybutylene terephthalate resin: 0.5 to 25 pbw (C) an antibacterial glass: 0.1 to 10 pbw.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: June 17, 2014
    Assignee: Koa Glass Co., Ltd.
    Inventor: Yoshinao Kobayashi
  • Publication number: 20130248528
    Abstract: Provided are a decorative glass container having clear boundary lines and good adhesion properties, and a method for manufacturing such a decorative glass container. The decorative glass container having, a lower layer including a thick wall portion and a thin wall portion, a vapor-deposition layer patterned by a forming region and a non-forming region, and an overcoat layer made of a UV curable resin, on the upper part of the glass container in order, and the method for manufacturing the decorative glass container, in which the forming region of the vapor-deposition layer is disposed on the upper part of the thick wall portion of the lower layer, the non-forming region of the vapor-deposition layer is disposed on the upper part of the thin wall portion of the lower layer by means of laser processing or the like, and a contact region is provided in which the lower layer and the overcoat layer are in direct contact with each other by way of the non-forming region of the vapor-deposition layer.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 26, 2013
    Applicant: KOA GLASS CO., LTD.
    Inventor: Kunihiro Fushimi
  • Publication number: 20120321689
    Abstract: The present invention relates to an antibacterial resin composition derived from a master batch, an antibacterial fiber, an antibacterial film, and a producing method of an antibacterial resin composition therefrom, comprising a polyethylene terephthalate resin as the component (A), and a polybutylene terephthalate resin as the component (B), an antibacterial glass which elutes silver ions as a component (C), which is characterized by having a composition formulated below. (A) a polyethylene terephthalate resin: 100 pbw (B) a polybutylene terephthalate resin: 0.5 to 25 pbw (C) an antibacterial glass: 0.1 to 10 pbw.
    Type: Application
    Filed: October 20, 2011
    Publication date: December 20, 2012
    Applicant: KOA GLASS CO., LTD.
    Inventor: Yoshinao Kobayashi
  • Patent number: 8327665
    Abstract: There is provided a one-press method for producing a glass vessel, the method enabling efficient production of even a glass vessel having the maximum thick wall part having a thickness larger than a predetermined value by using a divided type forming mold having a specific parting line.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 11, 2012
    Assignee: KOA Glass Co., Ltd.
    Inventors: Juji Ishigame, Takenori Yamanaka, Daisuke Date
  • Patent number: 8034732
    Abstract: An antimicrobial glass is provided which can release a predetermined amount of silver ion rapidly for a long period of time and can provide a predetermined antimicrobial treatment repeatedly to a matter to be antibacterialized during or after washing and which is excellent in discoloration prevention effect and discriminativity, and a method for producing the same is also provided. A tabular antimicrobial glass capable of exerting an antimicrobial effect by releasing silver ions, wherein the maximum diameter (t1) is adjusted within the range of 3 to 30 mm and which contains an inorganic coloring agent as a compounded component, wherein the addition amount of the inorganic coloring agent is adjusted to a value within the range of 0.001 to 0.5% by weight to the total amount.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: October 11, 2011
    Assignee: Koa Glass Co., Ltd.
    Inventors: Yoshinao Kobayashi, Mamoru Kitamura, Shinobu Kanamaru, Kenichi Tanaka
  • Patent number: 7851035
    Abstract: A multicolor development glass vessel of high surface hardness whose color is differentiated depending on the direction of viewing the glass vessel and a process for producing the same are provided. In the multicolor development glass vessel, a multilayer film is directly or indirectly formed on the external surface and internal surface, or either one thereof of the glass vessel by vapor deposition or sputtering technique and contains, for example, two types of vapor deposition layers whose refractive indices differ from each other by 0.1 or more in an alternate manner. Furthermore, for carrying out the process for producing the multicolor development glass vessel, the following steps (1) and (2) are included. (1) Step of preparing a glass vessel.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: December 14, 2010
    Assignee: Koa Glass Co., Ltd.
    Inventors: Kunihiro Fushimi, Eiji Ue
  • Publication number: 20100004111
    Abstract: An antimicrobial glass is provided which can release a predetermined amount of silver ion rapidly for a long period of time and can provide a predetermined antimicrobial treatment repeatedly to a matter to be antibacterialized during or after washing and which is excellent in discoloration prevention effect and discriminativity, and a method for producing the same is also provided. A tabular antimicrobial glass capable of exerting an antimicrobial effect by releasing silver ions, wherein the maximum diameter (t1) is adjusted within the range of 3 to 30 mm and which contains an inorganic coloring agent as a compounded component, wherein the addition amount of the inorganic coloring agent is adjusted to a value within the range of 0.001 to 0.5% by weight to the total amount.
    Type: Application
    Filed: February 2, 2007
    Publication date: January 7, 2010
    Applicant: KOA GLASS CO., LTD.
    Inventors: Yoshinao Kobayashi, Mamoru Kitamura, Shinobu Kanamaru, Kenichi Tanaka
  • Publication number: 20090060967
    Abstract: An object of the present invention is to provide an antimicrobial fiber having a diameter of approximately 10 to 30 ?m that is superior in surface smoothness, transparency, and others, and a method for producing the same thereof. Provided is an antimicrobial fiber, comprising a transparent resin, an antimicrobial glass, and inorganic particles as a dispersant of the antimicrobial glass, wherein a diameter of the antimicrobial fiber is in the range of 10 to 30 ?m, an average particle size of the antimicrobial glass is in the range of 0.1 to 10 ?m, an addition quantity of the antimicrobial glass is in the range of 0.1 to 10% by weight with respect to the total weight, an average particle size of the inorganic particles is in the range of 1 to 15 ?m, and an addition quantity of the inorganic particles is in the range of 0.1 to 50 parts by weight with respect to 100 parts by weight of the addition quantity of the antimicrobial glass.
    Type: Application
    Filed: November 17, 2005
    Publication date: March 5, 2009
    Applicant: KOA GLASS CO., LTD.
    Inventors: Yoshiaki Kamiya, Kenichi Tanaka, Shinobu Kanamaru
  • Publication number: 20080233319
    Abstract: A multicolor development glass vessel of high surface hardness whose color is differentiated depending on the direction of viewing the glass vessel and a process for producing the same are provided. In the multicolor development glass vessel, a multilayer film is directly or indirectly formed on the external surface and internal surface, or either one thereof of the glass vessel by vapor deposition or sputtering technique and contains, for example, two types of vapor deposition layers whose refractive indices differ from each other by 0.1 or more in an alternate manner. Furthermore, for carrying out the process for producing the multicolor development glass vessel, the following steps (1) and (2) are included. (1) Step of preparing a glass vessel.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 25, 2008
    Applicant: KOA GLASS CO., LTD.
    Inventors: Kunihiro Fushimi, Eiji Ue