Patents by Inventor Shigeki Matsui

Shigeki Matsui 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).

  • Publication number: 20210095066
    Abstract: The present invention provides a curable composition comprising a urethane-modified epoxy resin (A) as an essential component of a main material, and an acid anhydride (B) as an essential component of a curing agent, wherein the urethane-modified epoxy resin (A) is a reaction product of a polyisocyanate compound (a1), a polyester polyol (a2), and a hydroxyl group-containing epoxy resin (a3) as essential reaction raw materials. The curable composition of the invention is advantageous in that a cured product having excellent fracture toughness and excellent tensile strength can be formed from the composition.
    Type: Application
    Filed: February 12, 2019
    Publication date: April 1, 2021
    Applicant: DIC Corporation
    Inventors: Atsuko Kobayashi, Shigeki Matsui, Makoto Kimura
  • Publication number: 20200299498
    Abstract: The present invention provides a curable composition which contains an epoxy compound (A), an amine compound (B), and an acrylic resin (C) and in which the amine compound (B) contains an N-(aminoalkyl) piperazine compound (B1) as an essential component; a cured product; a fiber-reinforced composite material; a fiber-reinforced resin molded article; and a method for producing a fiber-reinforced resin molded article. The curable composition can form a cured product having excellent mechanical strength or heat resistance, and thus can be suitably used for a fiber-reinforced composite material or a fiber-reinforced resin molded article.
    Type: Application
    Filed: October 25, 2018
    Publication date: September 24, 2020
    Inventors: Shigeki Matsui, Makoto Kimura
  • Patent number: 10556406
    Abstract: To provide a light-shielding barrier laminate with excellent gas barrier properties and light-shielding properties. A light-shielding barrier laminate comprising a light-shielding sealant film laminated on a transparent gas barrier film, having an inorganic oxide vapor deposition film formed on one side of a transparent resin film, on the side on which the inorganic oxide vapor deposition film has been formed, via an adhesive layer, the light-shielding sealant film being a film having an aluminum vapor deposition film formed on one side of a heat-sealable resin film, the side on which the aluminum vapor deposition film is formed being laminated so as to face the adhesive layer.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: February 11, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shigeki Matsui, Koichi Mikami
  • Patent number: 10030113
    Abstract: The invention provides a gas barrier film with low deterioration in the gas barrier property before and after high-temperature hot water treatment. The gas barrier film has a gas barrier coating film, formed as a composite film comprising a network structure having a mesh structure with Si—O—Si bonds as the basic lattice and a water-soluble polymer crystallized as microcrystals, incorporated into the mesh of the network structure, wherein a barrier coating agent, obtained by mixing a condensate solution of an alkoxysilane hydrolysate prepared as a mixed solution in which the proportion of bonded states of the silicon atoms of the condensate with Q1 and Q2 structures is at least 60% of the total silicon atoms, with a crystalline water-soluble polymer, is coated on a base material film, either after forming or without forming an aluminum oxide vapor deposition film, to form a coating layer.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 24, 2018
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Azusa Suzuki, Hiroyuki Iwahashi, Takeshi Nishizono, Shigeki Matsui, Kazutoshi Haraguchi
  • Publication number: 20180171480
    Abstract: A roller-type continuous vapor deposition film-forming apparatus for a substrate that is to be conveyed at high speed, comprising a plasma pretreatment device and a film-forming apparatus provided in series, wherein a substrate conveying compartment 12A, a pretreatment compartment 12B and film formation compartment 12C are formed inside a chamber 3; and a substrate S is wound from an unwinding roller 13 onto a plasma pretreatment roller 20 and film formation roller 25, which are provided in series, via guide rollers 14a-14d, and is taken up by a take-up roller 15.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: TATSUO ASUMA, SHIGEKI MATSUI, TERUHISA KOMURO
  • Patent number: 9975987
    Abstract: Provided is an epoxy resin which has a low viscosity and excellent impregnation capability into reinforcing fibers and provides a cured product having a high elastic modulus and excellent heat resistance when the epoxy resin is used for a fiber-reinforced resin material, and a method for producing the epoxy resin, a curable resin composition, and a cured product thereof, a fiber-reinforced composite material, and a molded article. An epoxy resin which is polyglycidyl ether that is a polycondensation product of phenol and hydroxybenzaldehyde, the resin includes the trinuclear body (X) represented by the following Structural Formula (1), in which the content of a [o,p,p] bonding body (x1) represented by the following Structural Formula (1-1) among the trinuclear body (X) is in the range of 5% to 18% in terms of an area ratio as measured by liquid chromatography.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 22, 2018
    Assignee: DIC Corporation
    Inventors: Koji Hayashi, Makoto Kimura, Kunihiro Morinaga, Shigeki Matsui
  • Publication number: 20180072962
    Abstract: A lubricating oil composition includes: a lubricant base having a kinematic viscosity at 100° C. of 1.0 to 10 mm2/s and % CP of no less than 70; (A) 0.1 to 30 mass % of a poly(meth)acrylate viscosity index improver having a PSSI of no more than 5, a weight average molecular weight of 10,000 to 500,000, a ratio A/B of less than 2.4 and a ratio C/B of less than 1.4, the ratio A/B being a ratio of a viscosity increase effect A on kinematic viscosity at 100° C. to a viscosity increase effect B on HTHS viscosity at 150° C., and the ratio C/B being a ratio of a viscosity increase effect C on kinematic viscosity at 150° C. to the viscosity increase effect B on HTHS viscosity at 150° C.; and (B) 0.01 to 2.0 mass % of a friction modifier.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 15, 2018
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Kotaro WADA, Shintaro KUSUHARA, Shigeki MATSUI
  • Patent number: 9822440
    Abstract: Employed is a roller-type continuous vapor-deposited film forming device in which a film-forming section and a preprocessing section provided with a plasma preprocessing device are arranged in series at a distance from each other. With a substrate transported at a high speed, plasma (P) is supplied to the substrate surface side while set to an electrically positive potential by a plasma preprocessing means for supplying the plasma toward the substrate (S) in a space enclosed in a preprocessing roller, and enclosed in a plasma supply means for supplying a plasma-forming gas and in a magnet (21), which is a magnetism formation means. An active preprocessed surface is formed on the surface of the substrate (S). An inorganic oxide vapor-deposited film having as a principal component thereof an aluminum oxide containing AL-C covalent bonds is immediately formed at high speed in succession on the preprocessed surface of the substrate to produce a highly adhesive transparent vapor-deposited film.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: November 21, 2017
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shigeki Matsui, Tatsuo Asuma, Teruhisa Komuro, Hiroshi Miyama, Takakazu Goto, Kaoru Miyazaki, Hiroshi Matsuzaki
  • Patent number: 9783757
    Abstract: The present invention provides a poly(meth)acrylate-based viscosity index improver comprising a core portion and three or more arm portions, wherein each of the arm portions consists of a polymer chain comprising a structural unit represented by the following formula (1), and one end of the polymer chain is bonded to the core portion, and wherein a weight-average molecular weight Mw is 100000 or more, and a ratio of the weight-average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, is 1.6 or less. [R1 represents hydrogen or a methyl group, and R2 represents a C1 to C36 alkyl group.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 10, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Hiroya Miyamoto, Hiromitsu Matsuda, Kazuo Tagawa, Akira Takagi, Ryuichi Ueno
  • Publication number: 20170121451
    Abstract: Provided is an epoxy resin which has a low viscosity and excellent impregnation capability into reinforcing fibers and provides a cured product having a high elastic modulus and excellent heat resistance when the epoxy resin is used for a fiber-reinforced resin material, and a method for producing the epoxy resin, a curable resin composition, and a cured product thereof, a fiber-reinforced composite material, and a molded article. An epoxy resin which is polyglycidyl ether that is a polycondensation product of phenol and hydroxybenzaldehyde, the resin includes the trinuclear body (X) represented by the following Structural Formula (1), in which the content of a [o,p,p] bonding body (x1) represented by the following Structural Formula (1-1) among the trinuclear body (X) is in the range of 5% to 18% in terms of an area ratio as measured by liquid chromatography.
    Type: Application
    Filed: March 3, 2015
    Publication date: May 4, 2017
    Inventors: Koji Hayashi, Makoto Kimura, Kunihiro Morinaga, Shigeki Matsui
  • Patent number: 9637703
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a 100° C. kinematic viscosity of 1-20 mm2/s, (A) a friction modifier, (B) a first overbased metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal borate, and (C) an overbased second oil-soluble metal salt obtained by overbasing an oil-soluble metal salt with an alkaline earth metal carbonate.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: May 2, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Akira Yaguchi, Akio Mutou, Mari Nagae
  • Publication number: 20170009034
    Abstract: The invention provides a gas barrier film with low deterioration in the gas barrier property before and after high-temperature hot water treatment. The gas barrier film has a gas barrier coating film, formed as a composite film comprising a network structure having a mesh structure with Si—O—Si bonds as the basic lattice and a water-soluble polymer crystallized as microcrystals, incorporated into the mesh of the network structure, wherein a barrier coating agent, obtained by mixing a condensate solution of an alkoxysilane hydrolysate prepared as a mixed solution in which the proportion of bonded states of the silicon atoms of the condensate with Q1 and Q2 structures is at least 60% of the total silicon atoms, with a crystalline water-soluble polymer, is coated on a base material film, either after forming or without forming an aluminum oxide vapor deposition film, to form a coating layer.
    Type: Application
    Filed: March 27, 2015
    Publication date: January 12, 2017
    Inventors: Azusa SUZUKI, Hiroyuki IWAHASHI, Kenji NISHIZONO, Shigeki MATSUI, Kazutoshi HARAGUCHI
  • Patent number: 9447359
    Abstract: The invention provides a lubricating oil composition comprising: a lubricating base oil having a kinematic viscosity at 100° C. of 1-10 mm2/s, a % Cp of 70 or greater and a % CA of not greater than 2; a first viscosity index improver of 0.01-10% by mass, based on the total weight of the composition, wherein the first viscosity index improver is a poly(meth)acrylate having a weight-average molecular weight of not greater than 100,000; and a second viscosity index improver of 0.01-50% by mass, based on the total weight of the composition, wherein the second viscosity index improver is a polymer having a weight-average molecular weight of 100,000 or greater and containing a structural unit represented by the following formula (1) in a proportion of 0.5-70 mol %, the composition having a kinematic viscosity at 100° C. of 4-12 mm2/s and a viscosity index of 140-300.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: September 20, 2016
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki Matsui, Akira Yaguchi
  • Patent number: 9404062
    Abstract: The invention provides a lubricating oil composition comprising a lubricating base oil with a kinematic viscosity at 100° C. of 1-10 mm2/s, a % Cp; of 70 or greater and a % CA of no greater than 2 and a viscosity index improver having a weight-average molecular weight of 100,000 or greater and a ratio of weight-average molecular weight to PSSI of 1.0×104 or greater, at 0.1-50% by mass based on the total amount of the composition, and having a kinematic viscosity at 100° C. of 9.0-12.5 mm2/s and a HTHS viscosity at 150° C. of 2.8 mPa·s or greater. It further provides a lubricating oil composition comprising a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm2/s, a % Cp of 70 or greater and a % CA of no greater than 2, a hydrocarbon-based viscosity index improver with a PSSI of no greater than 20, and a poly(meth)acrylate-based viscosity index improver.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: August 2, 2016
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Akira Yaguchi, Shigeki Matsui, Teppei Tsujimoto
  • Patent number: 9376645
    Abstract: The present invention provides a lubricating oil composition for internal combustion engines which can reduce sufficiently the friction under mixed lubricating conditions and is excellent in fuel saving properties. The lubricating oil composition comprises (A) a base oil having a 100° C. kinematic viscosity of 2 to 8 mm2/s and an aromatic content of 10 percent by mass or less, (B) a metallic detergent having a metal ratio of 1.01 to 3.3 overbased with an alkaline earth metal borate, and (C) an organic molybdenum compound with a molybdenum concentration of 0.01 to 0.2 percent by mass on the basis of the total mass of the composition, and having a 100° C. HTHS viscosity of 5.5 mPa·s or lower.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: June 28, 2016
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Akira Yaguchi, Kazuhiro Yagishita, Koji Hoshino, Shigeki Matsui
  • Publication number: 20160176166
    Abstract: To provide a light-shielding barrier laminate with excellent gas barrier properties and light-shielding properties. A light-shielding barrier laminate comprising a light-shielding sealant film laminated on a transparent gas barrier film, having an inorganic oxide vapor deposition film formed on one side of a transparent resin film, on the side on which the inorganic oxide vapor deposition film has been formed, via an adhesive layer, the light-shielding sealant film being a film having an aluminum vapor deposition film formed on one side of a heat-sealable resin film, the side on which the aluminum vapor deposition film is formed being laminated so as to face the adhesive layer.
    Type: Application
    Filed: September 16, 2014
    Publication date: June 23, 2016
    Inventors: Shigeki MATSUI, Koichi MIKAMI
  • Patent number: 9353328
    Abstract: The present invention provides a lubricating oil composition for an internal combustion engine used mainly to drive a generator and to improve the fuel economy thereof. The composition comprises (A) a base oil being a hydrocarbon base oil having a ratio (CA/CB) of the proportion of the component of 24 or fewer carbon atoms (CA) and the proportion of the component of 25 or more carbon atoms (CB) in the carbon number distribution obtained by gas chromatography distillation of 2.0 or higher, the composition having a ratio (Vs/Vk) of the 80° C. high-temperature high-shear (HTHS) viscosity (Vk) and the 150° C. HTHS viscosity (Vs) of 0.35 or higher and a 100° C. kinematic viscosity of 2.5 mm2/s or higher and 5.2 mm2/s or lower.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: May 31, 2016
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Hiroya Miyamoto, Shigeki Matsui
  • Publication number: 20150322370
    Abstract: The present invention provides a poly(meth)acrylate-based viscosity index improver comprising a core portion, and three or more arm portions, wherein each of the arm portions consists of a polymer chain comprising a structural unit represented by formula (1) and a structural unit represented by formula (2) and one end of the polymer chain is bonded to the core portion, and wherein a weight-average molecular weight Mw is 100000 or more, and a ratio of the weight-average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, is 1.6 or less. [R1 represents hydrogen or a methyl group, and R2 represents a group represented by formula (3), and R3 represents a C1 to C18 alkyl group that is straight-chain or has a branch having 5 or less carbon atoms: m and n are integers which satisfy m?5, n?4, and m+n?31.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 12, 2015
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shigeki MATSUI, Hiroya MIYAMOTO, Hiromitsu MATSUDA, Kazuo TAGAWA, Akira TAKAGI, Ryuichi UENO
  • Publication number: 20150275349
    Abstract: Employed is a roller-type continuous vapor-deposited film forming device in which a film-forming section and a preprocessing section provided with a plasma preprocessing device are arranged in series at a distance from each other. With a substrate transported at a high speed, plasma (P) is supplied to the substrate surface side while set to an electrically positive potential by a plasma preprocessing means for supplying the plasma toward the substrate (S) in a space enclosed in a preprocessing roller, and enclosed in a plasma supply means for supplying a plasma-forming gas and in a magnet (21), which is a magnetism formation means. An active preprocessed surface is formed on the surface of the substrate (S). An inorganic oxide vapor-deposited film having as a principal component thereof an aluminum oxide containing AL-C covalent bonds is immediately formed at high speed in succession on the preprocessed surface of the substrate to produce a highly adhesive transparent vapor-deposited film.
    Type: Application
    Filed: September 26, 2013
    Publication date: October 1, 2015
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Shigeki Matsui, Tatsuo Asuma, Teruhisa Komuro, Hiroshi Miyama, Takakazu Goto, Kaoru Miyazaki, Hiroshi Matsuzaki
  • Patent number: 9102897
    Abstract: A lubricating oil composition for transmissions comprises a lubricating base oil comprising (A) a lubricating base oil so adjusted to have a kinematic viscosity at 100° C. of from 1.5 to 5 mm2/s and a % CN of from 10 to 60 (B) a mineral lubricating base oil having a kinematic viscosity at 100° C. of from 10 to 50 mm2/s and a sulfur content of from 0.3 to 1 percent by mass and (C) a synthetic oil composed of carbon and hydrogen and having a number average molecular weight of from 2,000 to 20,000, in respective specific amounts and (D) an extreme pressure additive of from 0.05 to 2 percent by mass, based on the total amount of the composition, of comprising a phosphorus-based extreme pressure additive, a sulfur-based extreme pressure additive and/or a phosphorus-sulfur-based extreme pressure additive, wherein in the composition, the phosphorus content (P) is from 0.01 to 0.05 percent by mass, the total sulfur content (S) is from 0.05 to 0.3 percent by mass, and the P/S ratio is from 0.10 to 0.40.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: August 11, 2015
    Assignee: NIPPON OIL CORPORATION
    Inventors: Masato Takahashi, Shigeki Matsui