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).
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THREE-DIMENSIONAL MODELING APPARATUS, CONTROL APPARATUS, AND METHOD FOR MANUFACTURING MODELED OBJECT
Publication number: 20230158748Abstract: A three-dimensional modeling apparatus includes a container, a carrier, and a blower unit. The container accommodates a curable composition. The carrier is configured to face an inner surface of the container and to have a variable distance with respect to the inner surface. The blower unit performs blowing between the carrier and the container. Further, in a case where the curable composition is cured in the container, the modeled object and the support portion, which connects the carrier and the modeled object, are formed. A wind from the blower unit is at least temporarily output toward at least one of the modeled object and the support portion.Type: ApplicationFiled: January 10, 2023Publication date: May 25, 2023Applicant: MITSUI CHEMICALS, INC.Inventors: Hirohisa SHIODE, Hiroshi YAMANAKA -
Publication number: 20220153894Abstract: A photo-curable composition including a di-(meth)acrylic monomer (A) having two (meth)acryloyloxy groups and two urethane bonds, an acrylic monomer (B) having one acryloyl group, and a photopolymerization initiator, as well as a cured product of the photo-curable composition, and a dental product including the cured product.Type: ApplicationFiled: March 30, 2020Publication date: May 19, 2022Applicant: MITSUI CHEMICALS, INC.Inventors: Toshikazu SAKAMAKI, Hirohisa SHIODE, Mai KIMURA
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Publication number: 20210178698Abstract: A measuring section of a stereolithography device measures a temperature of a photocurable resin liquid by a temperature sensor. A setting section sets an integrated light amount on the basis of temperature information obtained from a measured temperature and curing information stored in a storage section. An illuminating section controls a projector such that light, by which the set integrated light amount is obtained, is illuminated onto the photocurable resin liquid. Due thereto, light, which is such that there becomes an integrated light amount corresponding to the temperature of the photocurable resin liquid, is illuminated onto the photocurable resin liquid, and therefore, a molded object can be molded with high accuracy.Type: ApplicationFiled: December 20, 2018Publication date: June 17, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Toshikazu SAKAMAKI, Hirohisa SHIODE, Takaaki HAYASHI
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THREE-DIMENSIONAL MODELING APPARATUS, CONTROL APPARATUS, AND METHOD FOR MANUFACTURING MODELED OBJECT
Publication number: 20210138736Abstract: A control unit controls a position of a carrier and an irradiation unit to form a modeled object obtained by curing a photocurable composition. Here, the control unit irradiates the photocurable composition) with light from the irradiation unit to form the modeled object and a support portion which connects the carrier) and the modeled object. In addition, the control unit controls a modeling condition to make a modeling condition when modeling a joint portion of the support portion with the carrier be a condition in which the photocurable composition is easily cured rather than a modeling condition when modeling a first region, in which an area of a cross section parallel to the surface of the light transmission portion is the largest, in the modeled object.Type: ApplicationFiled: June 5, 2019Publication date: May 13, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Hirohisa SHIODE, Hiroshi YAMANAKA -
THREE-DIMENSIONAL MODELING APPARATUS, CONTROL APPARATUS, AND METHOD FOR MANUFACTURING MODELED OBJECT
Publication number: 20210129447Abstract: A control unit controls a position of a carrier and an irradiation unit to form a modeled object obtained by curing a photocurable composition. In addition, the control unit controls the position of the carrier and the irradiation unit to form at least a part of a flow channel connected to an outside of a container by curing the photocurable composition in a region irradiated with light, and controls the position of the carrier and the irradiation unit to at least temporarily provide at least one of an enlarged diameter portion and an opening portion.Type: ApplicationFiled: June 5, 2019Publication date: May 6, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Hirohisa SHIODE, Hiroshi YAMANAKA -
THREE-DIMENSIONAL MODELING APPARATUS, CONTROL APPARATUS, AND METHOD FOR MANUFACTURING MODELED OBJECT
Publication number: 20210122116Abstract: A three-dimensional modeling apparatus includes a container, a carrier, and a blower unit. The container accommodates a curable composition. The carrier is configured to face an inner surface of the container and to have a variable distance with respect to the inner surface. The blower unit performs blowing between the carrier and the container. Further, in a case where the curable composition is cured in the container, the modeled object and the support portion, which connects the carrier and the modeled object, are formed. A wind from the blower unit is at least temporarily output toward at least one of the modeled object and the support portion.Type: ApplicationFiled: June 5, 2019Publication date: April 29, 2021Applicant: MITSUI CHEMICALS, INC.Inventors: Hirohisa SHIODE, Hiroshi YAMANAKA -
Patent number: 10973742Abstract: 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: GrantFiled: August 2, 2017Date of Patent: April 13, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Toshikazu Sakamaki, Kouya Kojima, Hirohisa Shiode, Mai Kimura
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Patent number: 10709530Abstract: 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: GrantFiled: February 1, 2016Date of Patent: July 14, 2020Assignee: MITSUI CHEMICALS, INC.Inventors: Toshikazu Gomi, Takashi Koura, Hirohisa Shiode, Mai Kimura
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Patent number: 10562995Abstract: 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: GrantFiled: October 4, 2016Date of Patent: February 18, 2020Assignee: MITSUI CHEMICALS, INC.Inventors: Toshikazu Sakamaki, Takashi Koura, Kouya Kojima, Hirohisa Shiode, Mai Kimura
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Publication number: 20190175455Abstract: 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: ApplicationFiled: August 2, 2017Publication date: June 13, 2019Applicant: Mitsui Chemicals, Inc.Inventors: Toshikazu SAKAMAKI, Kouya KOJIMA, Hirohisa SHIODE, Mai KIMURA
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Publication number: 20180282455Abstract: 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: ApplicationFiled: October 4, 2016Publication date: October 4, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Toshikazu Sakamaki, Takashi Koura, Kouya Kojima, Hirohisa Shiode, Mai Kimura
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Publication number: 20180014919Abstract: 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: ApplicationFiled: February 1, 2016Publication date: January 18, 2018Applicant: MITSUI CHEMICALS, INC.Inventors: Toshikazu GOMI, Takashi KOURA, Hirohisa SHIODE, Mai KIMURA
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Patent number: 9404207Abstract: 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: GrantFiled: October 23, 2015Date of Patent: August 2, 2016Assignee: MITSUI CHEMICALS, INC.Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
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Publication number: 20160040335Abstract: 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: ApplicationFiled: October 23, 2015Publication date: February 11, 2016Applicant: MITSUI CHEMICALS, INC.Inventors: Akio MATSUBARA, Shingo KAJIYAMA, Kenichi SUZUKI, Hirohisa SHIODE, Takayuki KUBO
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Patent number: 9200392Abstract: 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: GrantFiled: December 5, 2011Date of Patent: December 1, 2015Assignee: MITSUI CHEMICALS, INC.Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
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Publication number: 20130266874Abstract: 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: ApplicationFiled: December 5, 2011Publication date: October 10, 2013Applicant: MITSUI CHEMICALS,INC.Inventors: Akio Matsubara, Shingo Kajiyama, Kenichi Suzuki, Hirohisa Shiode, Takayuki Kubo
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Publication number: 20040249009Abstract: 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: ApplicationFiled: January 30, 2004Publication date: December 9, 2004Inventors: Kiyoshi Homma, Noboru Sakamaki, Kunihide Hiraoka, Takeharu Isaki, Hirohisa Shiode, Eiichi Sugihara