Patents by Inventor Hirohisa Shiode

Hirohisa Shiode 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: 10973742
    Abstract: A photocurable composition for manufacturing a dental prosthesis by stereolithography, including: a photopolymerization initiator; and a (meth)acrylic monomer component including an acrylic monomer (X) having no aromatic rings and having a ring structure other than an aromatic ring and two or more acryloyloxy groups in one molecule and having an Mw of from 200 to 800, and at least one of a (meth)acrylic monomer (A) having one or more ether bonds and two (meth)acryloyloxy groups in one molecule and having a defined Mw, a (meth)acrylic monomer (B) having a ring structure other than an aromatic ring and one (meth)acryloyloxy group in one molecule and having a defined Mw, a (meth)acrylic monomer (C) having a hydrocarbon skeleton and two (meth)acryloyloxy groups in one molecule and having a defined Mw, and a (meth)acrylic monomer (D) having one or more aromatic rings and one (meth)acryloyloxy group in one molecule and having a Mw.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: April 13, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu Sakamaki, Kouya Kojima, Hirohisa Shiode, Mai Kimura
  • Patent number: 10709530
    Abstract: The present invention provides a photocurable composition which is used for the production by stereolithography of a dental prosthesis or the like. This photocurable composition contains a (meth)acrylic monomer component and a photopolymerization initiator; and the (meth)acrylic monomer component contains: an acrylic monomer (X) containing, within one molecule, two aromatic rings and two acryloyloxy groups, and having a Mw of from 400 to 580; and at least one of: a (meth)acrylic monomer (A) containing, within one molecule, one or more ether bonds and two (meth)acryloyloxy groups, and having a Mw of from 200 to 400; a (meth)acrylic monomer (B) not containing, within one molecule, a ring structure other than an aromatic ring and one (meth)acryloyloxy group, and having a Mw of from 130 to 240; or a (meth)acrylic monomer (C) containing, within one molecule, a hydrocarbon skeleton and two (meth)acryloyloxy groups, and having a Mw of from 190 to 280.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: July 14, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu Gomi, Takashi Koura, Hirohisa Shiode, Mai Kimura
  • Patent number: 10562995
    Abstract: Provided is a photocurable composition including a monomer component including: a monomer (X) containing, within one molecule, two aromatic rings and two (meth)acryloyloxy groups, and having an Mw of from 400 to 580, and a monomer (H) containing, within one molecule, at least one of a hydroxyl group or a carboxy group, and a (meth)acryloyloxy group, and having an Mw of from 100 to 700; and a photopolymerization initiator. The composition has a functional group value (a) of from 0.5×10?3 to 2.0×10?3 mol/g. Functional group value (a)=(nH/MH)×PH??Formula (a) wherein nH represents the total number of hydroxyl groups and carboxy groups contained in one molecule of the (meth)acrylic monomer (H); MH represents the Mw of the (meth)acrylic monomer (H); and PH represents the mass ratio of the (meth)acrylic monomer (H) with respect to the total amount of the (meth)acrylic monomer component.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: February 18, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu Sakamaki, Takashi Koura, Kouya Kojima, Hirohisa Shiode, Mai Kimura
  • Publication number: 20180282455
    Abstract: Provided is a photocurable composition including a monomer component including: a monomer (X) containing, within one molecule, two aromatic rings and two (meth)acryloyloxy groups, and having an Mw of from 400 to 580, and a monomer (H) containing, within one molecule, at least one of a hydroxyl group or a carboxy group, and a (meth)acryloyloxy group, and having an Mw of from 100 to 700; and a photopolymerization initiator. The composition has a functional group value (a) of from 0.5×10?3 to 2.0×10?3 mol/g. Functional group value (a)=(nH/MH)×PH??Formula (a) wherein nH represents the total number of hydroxyl groups and carboxy groups contained in one molecule of the (meth)acrylic monomer (H); MH represents the Mw of the (meth)acrylic monomer (H); and PH represents the mass ratio of the (meth)acrylic monomer (H) with respect to the total amount of the (meth)acrylic monomer component.
    Type: Application
    Filed: October 4, 2016
    Publication date: October 4, 2018
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Toshikazu Sakamaki, Takashi Koura, Kouya Kojima, Hirohisa Shiode, Mai Kimura
  • Patent number: 9404207
    Abstract: It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 ?m, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 2, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
  • Patent number: 9200392
    Abstract: It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 ?m, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 1, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
  • Publication number: 20130266874
    Abstract: It is an object of the present invention to provide a stable production process for a melt-blown nonwoven fabric comprising thin fibers and having extremely few thick fibers [number of fusion-bonded fibers] formed by fusion bonding of thermoplastic resin fibers to one another, and an apparatus for the same. The present invention relates to a melt-blown nonwoven fabric comprising polyolefin fibers and having (i) a mean fiber diameter of not more than 2.0 ?m, (ii) a fiber diameter distribution CV value of not more than 60%, and (iii) 15 or less fusion-bonded fibers based on 100 fibers; a production process for a melt-blown nonwoven fabric characterized by feeding cooling air of not higher than 30° C. from both side surfaces of outlets of slits 31 from which high-temperature high-velocity air is gushed out and thereby cooling the spun molten resin; and a production apparatus for the same.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 10, 2013
    Applicant: MITSUI CHEMICALS,INC.
    Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
  • Publication number: 20040249009
    Abstract: An olefinic thermoplastic elastomer foam of the present invention has a density of less than 700 kg/m3, a compression set of less than 60% and a density of elastically effective chains v of preferably 3.0×10−5 to 2.0×10−4 (mol/cm3). An olefinic thermoplastic elastomer composition for preparing the above foam has an equilibrium creep compliance Je0 of 1.0×10−6 to 5.0×10−4 (Pa−1) and contains a crosslinked olefin rubber and an olefin plastic in a specific proportion. The olefinic thermoplastic elastomer composition can be prepared by melt kneading a specific crosslinked olefinic thermoplastic elastomer and a specific olefin plastic.
    Type: Application
    Filed: January 30, 2004
    Publication date: December 9, 2004
    Inventors: Kiyoshi Homma, Noboru Sakamaki, Kunihide Hiraoka, Takeharu Isaki, Hirohisa Shiode, Eiichi Sugihara