Patents by Inventor Yohei Kageyama

Yohei Kageyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10611132
    Abstract: In order to provide a polyethylene sealant film having great strength and good heat sealability, despite being thin, a multilayer polyethylene sealant film is produced by a method including coextruding and stretching a sealant layer formed of a low density polyethylene resin or linear low density polyethylene resin and an orientation layer including a polyethylene resin having a melting point higher than the sealant layer, by an inflation method at a temperature higher than the melting point of the sealant layer and higher than the Vicat softening temperature, but lower than the melting point of the orientation layer.
    Type: Grant
    Filed: December 17, 2016
    Date of Patent: April 7, 2020
    Assignee: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Munenori Miyazaki, Yoshihiro Kojima, Yoshikazu Tanaka
  • Publication number: 20170282514
    Abstract: An easy peel sealant film includes at least a support layer and a peel layer. The support layer has a composition which contains 100 to 70 mass % of a linear low-density polyethylene, and 0 to 30 mass % of a propylene homopolymer. The peel layer has a composition which contains 40 to 60 mass % of a low-density polyethylene, 10 to 20 mass % of a high-density polyethylene, and 20 to 50 mass % of a propylene homopolymer. The propylene homopolymer in the support layer and the propylene homopolymer in the peel layer have a melt flow rate of 1 g/10 min to 9 g/10 min.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 5, 2017
    Inventors: Tomohiro ASAKAWA, Takuro MARUYAMA, Yohei KAGEYAMA
  • Publication number: 20170173928
    Abstract: In order to provide a polyethylene sealant film having great strength and good heat sealability, despite being thin, a multilayer polyethylene sealant film is produced by a method including coextruding and stretching a sealant layer formed of a low density polyethylene resin or linear low density polyethylene resin and an orientation layer including a polyethylene resin having a melting point higher than the sealant layer, by an inflation method at a temperature higher than the melting point of the sealant layer and higher than the Vicat softening temperature, but lower than the melting point of the orientation layer.
    Type: Application
    Filed: December 17, 2016
    Publication date: June 22, 2017
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Munenori Miyazaki, Yoshihiro Kojima, Yoshikazu Tanaka
  • Publication number: 20150225554
    Abstract: A blow-molded container is provided obtained by blow-molding a resin composition containing the following components (A) to (C): (A) 78 parts by mass to 55 parts by mass of a linear low-density polyethylene having a density of 910 kg/m3 to 925 kg/m3 and a melt mass flow rate of 1.5 g/10 minutes or more and less than 3.0 g/10 minutes; (B) 15 parts by mass to 25 parts by mass of a high-density polyethylene having a density of 945 kg/m3 to 970 kg/m3 and a melt mass flow rate of 1.0 g/10 minutes to 3.0 g/10 minutes; and (C) 7 parts by mass to 20 parts by mass of a low-density polyethylene having a density of 910 kg/m3 to 930 kg/m3 and a melt mass flow rate of 0.5 g/10 minutes to 8.0 g/10 minutes.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 13, 2015
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Toshiharu Iwasaki, Yohei Kageyama, Yukio Kobayashi, Masataka Kotani, Munenori Miyazaki
  • Patent number: 9096040
    Abstract: The present invention relates to a plastic film (10) formed by a co-extrusion method, and an infusion bag formed thereof. The plastic film (10) includes at least three layers having: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam having 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) containing a copolymer of an ?-olefin and an anhydride monomer of an unsaturated carboxylic acid or an unsaturated dicarboxylic acid as the major component; and a sealing layer (3) containing a polyethylene as the major component.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: August 4, 2015
    Assignee: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Manabu Nakamura, Masataka Kotani, Toshiharu Iwasaki
  • Publication number: 20140345088
    Abstract: This invention provides a molded fastener part having a good heat-bondability to PET resin film and being excellent in flexibility and sealability, comprising a substrate layer, a fastening rail layer comprising a polyolefin resin and having a groove portion or a rib portion, and an adhesive layer located therebetween, wherein said substrate layer is made of a polyethylene terephthalate resin composition comprising 100 parts by weight of polyethylene terephthalate, 0.1-3 parts by weight of styrene-methyl (metha) acrylate-glycidyl methacrylate copolymer, 3-20 parts by weight of softening agent, and 0.05-1.5 parts by weight of molding assistant, and said adhesive layer comprises a copolymer of ethylene and a monomer containing epoxy group, or a copolymer of ethylene, (metha) acrylate ester and a dicarboxylic anhydride monomer.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Takuro Maruyama
  • Publication number: 20140120281
    Abstract: A plastic film according to the present invention includes a first outer layer made of a polyester elastomer; a second outer layer containing a high-density polyethylene; a first intermediate layer arranged between the first outer layer and the second outer layer and containing a linear low-density polyethylene as a main component; and a second intermediate layer arranged between the first outer layer and the first intermediate layer and containing a polymer of an ?-olefin and an unsaturated carboxylic acid or an anhydride monomer of an unsaturated carboxylic acid as a main component. The plastic film can be produced by a co-extrusion method.
    Type: Application
    Filed: July 9, 2012
    Publication date: May 1, 2014
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Toshiharu Iwasaki, Manabu Nakamura, Yohei Kageyama
  • Patent number: 8708992
    Abstract: The present invention relates to a plastic film for medical containers having an oxygen absorbing function including at least 4 layers (4) and formed by a co-extrusion method, and an infusion bag formed thereof, in which the 4 layers include: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) of a mixed composition that is adjacent to the first layer and contains an ethylene vinyl alcohol copolymer of an ?-olefin and a monomer of an unsaturated carboxylic acid or an anhydride of an unsaturated dicarboxylic acid as the major component, and a transition metal salt and a polyene-based polymer having an unsaturated double bond as accessory components; a third layer (3) that is adjacent to the second layer and contai
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 29, 2014
    Assignee: Hosokawa Yoko Co., Ltd.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Manabu Nakamura, Masataka Kotani, Toshiharu Iwasaki
  • Publication number: 20120215196
    Abstract: The present invention relates to a plastic film for medical containers having an oxygen absorbing function including at least 4 layers (4) and formed by a co-extrusion method, and an infusion bag formed thereof, in which the 4 layers include: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) of a mixed composition that is adjacent to the first layer and contains an ethylene vinyl alcohol copolymer of an ?-olefin and a monomer of an unsaturated carboxylic acid or an anhydride of an unsaturated dicarboxylic acid as the major component, and a transition metal salt and a polyene-based polymer having an unsaturated double bond as accessory components; a third layer (3) that is adjacent to the second layer and contai
    Type: Application
    Filed: November 2, 2010
    Publication date: August 23, 2012
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Manabu Nakamura, Masataka Kotani, Toshiharu Iwasaki
  • Publication number: 20120201984
    Abstract: The present invention relates to a plastic film (10) formed by a co-extrusion method, and an infusion bag formed thereof. The plastic film (10) includes at least three layers having: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam having 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) containing a copolymer of an ?-olefin and an anhydride monomer of an unsaturated carboxylic acid or an unsaturated dicarboxylic acid as the major component; and a sealing layer (3) containing a polyethylene as the major component.
    Type: Application
    Filed: October 18, 2010
    Publication date: August 9, 2012
    Applicant: HOSOKAWA YOKO CO., LTD.
    Inventors: Yukio Kobayashi, Yohei Kageyama, Manabu Nakamura, Masataka Kotani, Toshiharu Iwasaki
  • Publication number: 20060191803
    Abstract: To provide a partitioning member capable of gaplessly melt-sealing a plurality of containers to the partitioning member even without a support member, provide a partitioning member free from floating of a foreign matter in the container after communicating the containers, and provide a container using the partitioning member, where the contents housed in a plurality of containers can be unfailingly separated before use and respective contents can be easily mixed while keeping the sterile state on use. A partition body 4 for partitioning a hollow part 3 of a partitioning member main body 2 is provided at a portion except for opening ends of the hollow part 3. Also, a support member 10 is melt-sealed to the opening part 12 of the partitioning member main body.
    Type: Application
    Filed: September 1, 2004
    Publication date: August 31, 2006
    Inventors: Akihio Sakata, Manabu Nakamura, Yohei Kageyama
  • Publication number: 20050031815
    Abstract: The present invention is aimed to provide a resin composition suitable for a container packaging film that has excellent appearance and antiblocking properties, and has no fear of contamination into the container. The present invention relates to resin composition comprising from 40 to 90 mass % of a propylene-base polymer and from 10 to 60 mass % of a high-density polyethylene (the total of the propylene-base polymer and the high-density polyethylene is 100 mass %), the composition substantially not containing a lubricant and not containing an antiblocking agent, and the ratio of MFR of the propylene-base polymer at 230° C. to MFR of the high-density polyethylene at 190° C. being from 5 to 200. The present invention also relates to a container packaging film, sealant film, laminate, container packaging bag, and container package using the resin composition of the present invention.
    Type: Application
    Filed: December 25, 2002
    Publication date: February 10, 2005
    Inventors: Yohei Kageyama, Masataka Kotani
  • Patent number: 6484874
    Abstract: One object of the present invention is to provide a medical container with multiple chambers and a production method thereof, where respective medicaments housed in a plurality of chambers can be separated without fail until performing the infusion and when performing the infusion, the respective medicaments can be easily mixed while keeping the sterile state.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: November 26, 2002
    Assignee: Showa Denko Plastic Products Co., Ltd.
    Inventors: Yohei Kageyama, Akihiko Sakata, Manabu Nakamura, Junji Yotsuyanagi
  • Patent number: 6015582
    Abstract: A water absorbing article and method of using the same are provided in order to remove drip accumulated at the interface of a food and an water absorbing article and to prevent foods from quality degradation. The water absorbing article comprises a water absorbing sheet comprising at least three layers; a liquid permeable layer made of paper or pulp, a water absorbing layer made of paper or pulp containing water absorbing particles, and a liquid-in permeable layer inserted in between the liquid permeable layer and the water absorbing layer, and the water absorbing sheet is inserted in a bag made of a liquid permeable sheet. The object is attained by placing a food on a liquid permeable layer of the thus-formed water absorbing article and subsequently the whole is vacuum packed.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: January 18, 2000
    Assignee: Showa Denko K.K.
    Inventors: Yohei Kageyama, Takeshi Banba, Eikichi Kogure