Patents by Inventor Masahiko Okamoto

Masahiko Okamoto 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: 20230384742
    Abstract: Provided is a model selection apparatus including a candidate model storage unit configured to store a plurality of candidate models each of which is generated by reinforcement learning using, as at least a part of a reward, an output of an evaluation model configured to output an indicator obtained by evaluating a state of equipment and is capable of output an action, a state data acquisition unit configured to acquire a plurality of pieces of state data representing the state of the equipment in a case where each of manipulated variables based on outputs of the plurality of candidate models is applied to a controlled object in the equipment, an indicator acquisition unit configured to acquire a plurality of indicators, a model selection unit configured to select an object model for controlling the controlled object, and an object model output unit configured to output the object model.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 30, 2023
    Inventors: Go TAKAMI, Hiromi OKAMOTO, Masahiko SATO, Hideyuki FUJII, Yoshiyuki JINGUU, Nobuhiro MITOMO
  • Patent number: 11788944
    Abstract: To provide a technique that enables the risk of contamination to be reduced. Provided is a microparticle measuring apparatus including at least: a relay unit that enables a flow path through which microparticles flow and a cleaning fluid storage unit to communicate with each other; a sheath fluid tube that causes the flow path and a sheath fluid storage unit to communicate with each other; and a cleaning fluid tube that causes the relay unit and the cleaning fluid storage unit to communicate with each other, in which the relay unit includes a first connector that can be connected to a joint portion on the sheath fluid storage unit side of the sheath fluid tube.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: October 17, 2023
    Assignee: SONY CORPORATION
    Inventors: Masahiro Saito, Shingo Mouri, Masahiko Nakamura, Hidetaka Okamoto
  • Publication number: 20230305501
    Abstract: Provided is a model verification apparatus including a model storage unit configured to store a machine learning model that has been subjected to machine learning, by using a learning sample including state data indicating a state of equipment in which a controlled object is provided and action data indicating an action for deciding a manipulated variable to be applied to the controlled object, so as to output an action according to the state of the equipment, a learning range identification unit configured to identify a learning range indicating a range of the learning sample, a verification data acquisition unit configured to acquire verification data indicating a plurality of states of the equipment outside the learning range, and a verification result output unit configured to output a verification result indicating a plurality of actions to be output by the machine learning model in response to an input of the verification data.
    Type: Application
    Filed: February 19, 2023
    Publication date: September 28, 2023
    Inventors: Go TAKAMI, Hiromi OKAMOTO, Masahiko SATO, Hideyuki FUJII, Yoshiyuki JINGUU, Nobuhiro MITOMO
  • Patent number: 11732075
    Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 22, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hideki Wasa, Haruka Saito, Sunil Krzysztof Moorthi, Futoshi Fujimura, Masahiko Okamoto, Emi Oniki, Kouichi Kizu, Jiacheng He
  • Patent number: 11718574
    Abstract: The present invention is a solvent composition including: a solvent including 1-chloro-2,3,3-trifluoro-1-propene; and at least one type of stabilizer selected from a group consisting of phenols, ethers, epoxides, amines, alcohols, and hydrocarbons, and is a solvent composition which is excellent in solubility of various organic substances and has no adverse effect on a global environment, and is excellent in stability, and this solvent composition can be used for a wide range of industrial uses such as cleaning, coating uses, and a heat transfer fluid.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: August 8, 2023
    Assignee: AGC Inc.
    Inventors: Hiroaki Mitsuoka, Toshio Miki, Masahiko Nakamura, Mari Ichinokawa, Hidekazu Okamoto, Atsushi Fujimori
  • Publication number: 20230159684
    Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.
    Type: Application
    Filed: January 23, 2023
    Publication date: May 25, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki WASA, Haruka SAITO, Sunil Krzysztof MOORTHI, Futoshi FUJIMURA, Masahiko OKAMOTO, Emi ONIKI, Kouichi KIZU, Jiacheng HE
  • Publication number: 20220081598
    Abstract: An adhesive resin composition including a propylene polymer (A), an ethylene polymer (B), and a thermoplastic resin (C) including a copolymer containing not less than 60 mol % and not more than 99 mol % of structural units derived from 4-methyl-1-pentene, and not less than 1 mol % and not more than 40 mol % of structural units derived from a C2-C20 ?-olefin other than 4-methyl-1-pentene, these structural units representing total 100 mol % of the copolymer, the thermoplastic resin (C) showing a melting point Tm of not more than 199° C. or showing substantially no melting point as analyzed with a differential scanning calorimeter (DSC). The total of the components (A), (B) and (C) includes 45 to 75 parts by mass of the component (A), 5 to 20 parts by mass of the component (B), and 15 to 45 parts by mass of the component (C).
    Type: Application
    Filed: January 6, 2020
    Publication date: March 17, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Akihiko IWASHITA, Ryohei SHIGA, Motoyasu YASUI, Yoshisada FUKAGAWA, Kyoko KOBAYASHI, Masahiko OKAMOTO
  • Publication number: 20220073659
    Abstract: The present invention provides a 4-methyl-1-pentene/?-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/?-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of ?-olefin selected from ?-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki UEKUSA, Masahiko OKAMOTO, Yoshisada TAMO
  • Patent number: 11248069
    Abstract: A 4-methyl-1-pentene polymer having: a unit derived from 4-methyl-1-pentene of 90 to 100% by mol; a unit selected from ethylene and an ?-olefin, other than 4-methyl-1-pentene, having 3 to 20 carbon atoms of 0 to 10% by mol; and the polymer satisfying the following requirements: (a) a meso diad fraction measured by 13C-NMR within the range of 98 to 100%; (b) a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw measured by GPC within the range of 2.5 to 20; (c) a ratio of weight-average molecular weight Mw to number-average molecular weight Mn measured by GPC within the range of 3.6 to 30; (d) a melt flow rate measured under conditions of 260° C. and a 5 kg load (ASTM D1238) within the range of 0.1 to 500 g/10 min; and (e) an amount of a decane-soluble portion at 23° C. is 5.0% by mass or less.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 15, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masakazu Tanaka, Masahiko Okamoto, Makoto Nakano, Sadahiko Matsuura
  • Publication number: 20220041847
    Abstract: A resin composition including a 4-methyl-1-pentene copolymer (A) that satisfies particular requirements and a 4-methyl-1-pentene copolymer (B) that satisfies particular requirements, in which the content of the copolymer (A) is 10 to 95 parts by mass and the content of the copolymer (B) is 90 to 5 parts by mass with respect to 100 parts by mass of the total content of the copolymers (A) and (B).
    Type: Application
    Filed: December 2, 2019
    Publication date: February 10, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hisanori HASHIMOTO, Masahiko OKAMOTO, Makoto NAKANO, Toyoaki SASAKI, Masakazu TANAKA
  • Publication number: 20220033598
    Abstract: The cyclic olefin-based resin composition of the present invention is a cyclic olefin-based resin composition including: a cyclic olefin-based copolymer (A); and inorganic fine particles (B) having a surface modified by a modifier, in which the modifier is one kind or two or more kinds selected from the group consisting of a phosphoric acid ester, an organic phosphonic acid, a phosphonic acid ester, a carboxylic acid, a sulfonic acid, a hydrocarbon compound having an amino group, and a silane coupling agent, and the inorganic fine particles (B) exist in a state of being dispersed in the cyclic olefin-based copolymer (A).
    Type: Application
    Filed: September 5, 2019
    Publication date: February 3, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mikiko NOGUCHI, Haruka SAITO, Masahiko OKAMOTO, Seigou KAWAGUCHI, Yuto TSUKUTA
  • Patent number: 10870738
    Abstract: A polyester sheet including a polyester (A), a 4-methyl-1-pentene polymer (B) having a specific heat of fusion and a meso diad fraction (m) of 98.5 to 100%, and a compatibilizing agent (C), wherein content proportions of the (A), (B), and (C) are 60 to 98.9 parts by mass for (A), 1 to 25 parts by mass for (B), and 0.1 to 15 parts by mass for (C), when a total content of (A), (B), and (C) is set as 100 parts by mass, and wherein (B) satisfies the requirements (a) to (d) described herein.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: December 22, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masakazu Tanaka, Toyoaki Sasaki, Yasuhito Tsugane, Kenkichi Yoshida, Kenjiro Takamine, Masahiko Okamoto, Takanori Tada
  • Publication number: 20200369812
    Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 26, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki WASA, Haruka SAITO, Sunil Krzysztof MOORTHI, Futoshi FUJIMURA, Masahiko OKAMOTO, Emi ONIKI, Kouichi KIZU, Jiacheng HE
  • Publication number: 20200247925
    Abstract: The present invention provides a 4-methyl-1-pentene/?-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/?-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of ?-olefin selected from ?-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %.
    Type: Application
    Filed: April 14, 2020
    Publication date: August 6, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki UEKUSA, Masahiko OKAMOTO, Yoshisada TAMO
  • Patent number: 10662270
    Abstract: The present invention provides a 4-methyl-1-pentene/?-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/?-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of ?-olefin selected from ?-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 26, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takayuki Uekusa, Masahiko Okamoto, Yoshisada Tamo
  • Publication number: 20200071475
    Abstract: A polyester sheet including a polyester (A), a 4-methyl-1-pentene polymer (B) having a specific heat of fusion and a meso diad fraction (m) of 98.5 to 100%, and a compatibilizing agent (C), wherein content proportions of the (A), (B), and (C) are 60 to 98.9 parts by mass for (A), 1 to 25 parts by mass for (B), and 0.1 to 15 parts by mass for (C), when a total content of (A), (B), and (C) is set as 100 parts by mass, and wherein (B) satisfies the requirements (a) to (d) described herein.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 5, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masakazu TANAKA, Toyoaki SASAKI, Yasuhito TSUGANE, Kenkichi YOSHIDA, Kenjiro TAKAMINE, Masahiko OKAMOTO, Takanori TADA
  • Publication number: 20200071443
    Abstract: A graft copolymer (C) having a main chain portion of a precursor polymer (A) and a graft portion from a polymer (B), wherein a core portion of the solid product comprises the main chain portion derived from (A), a shell portion comprises the graft portion derived from (B), and the solid product satisfies: Infrared absorption spectroscopic measurement of a section passing through a center (x) of the solid product, a point (z) on a surface where a distance between the center (x) and the surface is shortest, and a middle point (y) of a line connecting the center (x) and the point (z), absorbance (Abs) satisfies X<0.01, Y<0.01, and Z?0.01, wherein X, Y, and Z represent values of Abs (key band of the polymer (B))/Abs (key band of the polymer (A)) at the center (x), the middle point (y) and the point (z).
    Type: Application
    Filed: December 7, 2017
    Publication date: March 5, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Akihide MORI, Masahiko OKAMOTO, Katsuyoshi HARADA, Takahiro YAMADA, Shuhei YAMAMOTO, Kiyoshi TAKAHASHI, Kiyoshi YAMAMURA, Koutarou SUZUKI, Ryouichi SEKI, Shinya MATSUNAGA
  • Publication number: 20190048109
    Abstract: A 4-methyl-1-pentene polymer having: a unit derived from 4-methyl-1-pentene of 90 to 100% by mol; a unit selected from ethylene and an ?-olefin, other than 4-methyl-1-pentene, having 3 to 20 carbon atoms of 0 to 10% by mol; and the polymer satisfying the following requirements: (a) a meso diad fraction measured by 13C-NMR within the range of 98 to 100%; (b) a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw measured by GPC within the range of 2.5 to 20; (c) a ratio of weight-average molecular weight Mw to number-average molecular weight Mn measured by GPC within the range of 3.6 to 30; (d) a melt flow rate measured under conditions of 260° C. and a 5 kg load (ASTM D1238) within the range of 0.1 to 500 g/10 min; and (e) an amount of a decane-soluble portion at 23° C. is 5.0% by mass or less.
    Type: Application
    Filed: February 21, 2017
    Publication date: February 14, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masakazu TANAKA, Masahiko OKAMOTO, Makoto NAKANO, Sadahiko MATSUURA
  • Patent number: 9902847
    Abstract: To provide a 4-methyl-1-pentene/olefin (co)polymer composition which is excellent in transparency and heat resistance and is excellent also in elongation and toughness and to provide a molded product composed of the composition, a film composed of the composition, which is excellent in transparency, heat resistance and dimensional stability and has been uniformly stretched, and a hollow molded product composed of the composition, which is excellent in transparency, heat resistance and toughness and is excellent also in dimensional stability. The 4-methyl-1-pentene (co)polymer composition of the present invention comprises a specific 4-methyl-1-pentene (co)polymer (A) and a specific 4-methyl-1-pentene/?-olefin copolymer (B) in a specific ratio.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hirokazu Tanaka, Takayuki Uekusa, Masahiko Okamoto, Yoshisada Tamo
  • Publication number: 20170298160
    Abstract: The present invention provides a 4-methyl-1-pentene/?-olefin copolymer being excellent in lightness, stress absorption, stress relaxation, vibration damping properties, scratch resistance, abrasion resistance, toughness, mechanical properties and flexibility, having no stickiness during molding operation and being excellent in the balance among these properties; a composition comprising the polymer; and uses thereof. The 4-methyl-1-pentene/?-olefin copolymer (A) of the present invention satisfies specific requirements, and comprises 5 to 95 mol % of a structural unit (i) derived from 4-methyl-1-pentene, 5 to 95 mol % of a structural unit (ii) derived from at least one kind of ?-olefin selected from ?-olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene and 0 to 10 mol % of a structural unit (iii) derived from a non-conjugated polyene, provided that the total of the structural units (i), (ii), and (iii) is 100 mol %.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Takayuki UEKUSA, Masahiko OKAMOTO, Yoshisada TAMO