Patents by Inventor Takeshi Osaki

Takeshi Osaki 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: 11635683
    Abstract: A method for manufacturing a device including a substrate and a second film disposed above the substrate includes: forming a first film above the substrate using a composition containing a polymerizable monomer and an oxidation inhibitor; and forming the second film by curing the first film in a state where at least one part of a mold having a convexo-concave pattern is in contact with the first film, or after at least one part of the mold is brought into contact with the first film. The oxidation inhibitor is at least one of a hindered amine compound and a hindered phenol compound having a molecular weight of 700 or more. The composition satisfies a relationship of (t0(T)?tx(T))/t0(T)×100?13.0. (t0(T) is a height of a convex part of cured film obtained by the specific method, and tx(T) is the corresponding height after heating at 260° C.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: April 25, 2023
    Assignee: TOYO GOSEI CO., LTD.
    Inventor: Takeshi Osaki
  • Publication number: 20210397097
    Abstract: A method of producing a molded product, the method including: pressing a mold having a surface including at least one of a concave part or a convex part against a photocurable positive electron beam resist; obtaining a molded product of the positive electron beam resist having a surface including a concave part and a convex part by irradiating the photocurable positive electron beam resist pressed against the resist with light to cure the resist; and partially decomposing the molded product of the positive electron beam resist in a region subjected to irradiation with an electron beam by irradiating the surface of the molded product of the positive electron beam resist with the electron beam.
    Type: Application
    Filed: July 26, 2019
    Publication date: December 23, 2021
    Applicants: TOKYO UNIVERSITY OF SCIENCE FOUNDATION, TOYO GOSEI CO., LTD.
    Inventors: Jun TANIGUCHI, Takao OKABE, Takeshi OSAKI, Takashi MIYAZAWA
  • Publication number: 20210263409
    Abstract: A method for manufacturing a device including a substrate and a second film disposed above the substrate includes: forming a first film above the substrate using a composition containing a polymerizable monomer and an oxidation inhibitor; and forming the second film by curing the first film in a state where at least one part of a mold having a convexo-concave pattern is in contact with the first film, or after at least one part of the mold is brought into contact with the first film. The oxidation inhibitor is at least one of a hindered amine compound and a hindered phenol compound having a molecular weight of 700 or more. The composition satisfies a relationship of (t0(T)?tx(T))/t0(T)×100?13.0. (t0(T) is a height of a convex part of cured film obtained by the specific method, and tx(T) is the corresponding height after heating at 260° C.
    Type: Application
    Filed: May 12, 2021
    Publication date: August 26, 2021
    Applicant: TOYO GOSEI CO., LTD.
    Inventor: Takeshi OSAKI
  • Patent number: 10723909
    Abstract: Methods for producing an optical element having a cured layer with a concavo-convex structure are described. Such a method includes: forming a composition layer on a base material by using a composition containing a polymerizable compound and a photo initiator; forming a pattern formative layer by pressure-contacting a mold; and forming the cured layer having the concavo-convex structure by photo-curing the pattern formative layer, wherein the polymerizable compound contains (a) a urethane (meth)acrylate monomer, the composition contains 0.005 to 0.5 part by mass of the photo initiator with respect to 100 parts by mass of the polymerizable compound, and the cured layer has a film thickness of the concavo-convex structure within a range of 0.5 mm to 1 cm.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 28, 2020
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 10472446
    Abstract: Described is a composition comprising: a compound (A) having a substituent (a) being at least either one of an acryloyl group and a methacryloyl group, and a perfluoroalkylene group; and a compound (B) having a substituent (b) being either one of an acryloyl group and a methacryloyl group, and a substituent (c) being either one of an acryloyl group and a methacryloyl group.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: November 12, 2019
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 10213943
    Abstract: A suitable combination of a composition for formation of a resin mold with a pattern and a composition for formation of resin to which the pattern is transferred from the resin mold is found.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: February 26, 2019
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Taigo Akasaki, Risa Wada, Takeshi Osaki
  • Patent number: 10189983
    Abstract: A curable resin composition comprising: a fluorinated urethane(meth)acrylate represented by formula (1), wherein, R1, R2, R3 and R4 each independently represents a hydrogen atom or a methyl group, x and y each independently represents 1 or 2, and n represents an integer within the range of 1 to 10; R3 and R4 each independently represents the hydrogen atom when x and y are both 1; R3 represents the hydrogen atom and R4 represents the methyl group when x is 1 and y is 2; R3 represents the methyl group and R4 represents the hydrogen atom when x is 2 and y is 1; and R3 and R4 each independently represents the methyl group when x and y are both 2.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: January 29, 2019
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 10191370
    Abstract: Compositions are for formation of etch-resistant resins. Such resins are useful for manufacturing components or devices.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: January 29, 2019
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Takeshi Osaki, Taigo Akasaki, Risa Wada
  • Publication number: 20180231887
    Abstract: A method for manufacturing a device including a substrate and a second film disposed above the substrate includes: forming a first film above the substrate using a composition containing a polymerizable monomer and an oxidation inhibitor; and forming the second film by curing the first film in a state where at least one part of a mold having a convexo-concave pattern is in contact with the first film, or after at least one part of the mold is brought into contact with the first film. The oxidation inhibitor is at least one of a hindered amine compound and a hindered phenol compound having a molecular weight of 700 or more. The composition satisfies a relationship of (t0(T)-tx(T))/t0(T)×100?13.0. (t0(T) is a height of a convex part of cured film obtained by the specific method, and tx(T) is the corresponding height after heating at 260° C.
    Type: Application
    Filed: August 24, 2016
    Publication date: August 16, 2018
    Applicant: TOYO GOSEI CO., LTD.
    Inventor: Takeshi OSAKI
  • Patent number: 9840038
    Abstract: Described is a resinous structure derived from fluorine-containing polymers useful as a mold having excellent dimensional stability.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: December 12, 2017
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 9663602
    Abstract: A composition suitable for manufacturing components and devices (e.g., optical or electronic components, films, and devices) is disclosed. Such compositions may comprise a first compound having a first polymerizable group, a second polymerizable group, and a third polymerizable group. The first compound preferably has no aromatic group, and the second compound is preferably able to generate a radical by cleavage of a bond of the second compound. The first polymerizable group, the second polymerizable group and the third polymerizable group may be identical substituents. Further, the first polymerizable group may be connected to a first chain connected to a first atom; the second polymerizable group may be connected to a second chain connected to the first atom; and the third polymerizable group may be connected to a third chain connected to the first atom.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 30, 2017
    Assignee: TOYO GOSEI CO., LTD.
    Inventors: Takeshi Osaki, Kana Naruse, Takashi Miyazawa
  • Publication number: 20170072601
    Abstract: A suitable combination of a composition for formation of a resin mold with a pattern and a composition for formation of resin to which the pattern is transferred from the resin mold is found.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 16, 2017
    Inventors: Taigo Akasaki, Risa Wada, Takeshi Osaki
  • Publication number: 20160326276
    Abstract: Compositions are for formation of etch-resistant resins. Such resins are useful for manufacturing components or devices.
    Type: Application
    Filed: January 7, 2015
    Publication date: November 10, 2016
    Applicant: TOYO GOSEI CO., LTD.
    Inventors: Takeshi Osaki, Taigo Akasaki, Risa Wada
  • Publication number: 20160208127
    Abstract: Compositions that are especially suitable for optical components are disclosed.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 21, 2016
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 9366782
    Abstract: Described is a resinous article of manufacture that is wrinkle-resistant and is warpage-resistant when subjected to very high temperatures. Such an article is useful as an optical lens.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: June 14, 2016
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Takeshi Osaki, Yuki Kawakami
  • Publication number: 20160017074
    Abstract: Described is a composition comprising: a compound (A) having a substituent (a) being at least either one of an acryloyl group and a methacryloyl group, and a perfluoroalkylene group; and a compound (B) having a substituent (b) being either one of an acryloyl group and a methacryloyl group, and a substituent (c) being either one of an acryloyl group and a methacryloyl group.
    Type: Application
    Filed: March 3, 2014
    Publication date: January 21, 2016
    Inventors: Risa Wada, Takeshi Osaki
  • Patent number: 9240565
    Abstract: A suitable composition for manufacturing components and devices is disclosed.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: January 19, 2016
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Takeshi Osaki, Kana Naruse, Takashi Miyazawa
  • Publication number: 20150368453
    Abstract: A curable resin composition comprising: a fluorinated urethane(meth)acrylate represented by formula (1), wherein, R1, R2, R3 and R4 each independently represents a hydrogen atom or a methyl group, x and y each independently represents 1 or 2, and n represents an integer within the range of 1 to 10; R3 and R4 each independently represents the hydrogen atom when x and y are both 1; R3 represents the hydrogen atom and R4 represents the methyl group when x is 1 and y is 2; R3 represents the methyl group and R4 represents the hydrogen atom when x is 2 and y is 1; and R3 and R4 each independently represents the methyl group when x and y are both 2.
    Type: Application
    Filed: December 25, 2013
    Publication date: December 24, 2015
    Inventors: Risa Wada, Takeshi Osaki
  • Publication number: 20150274871
    Abstract: A composition suitable for manufacturing components and devices (e.g., optical or electronic components, films, and devices) is disclosed. Such compositions may comprise a first compound having a first polymerizable group, a second polymerizable group, and a third polymerizable group. The first compound preferably has no aromatic group, and the second compound is preferably able to generate a radical by cleavage of a bond of the second compound. The first polymerizable group, the second polymerizable group and the third polymerizable group may be identical substituents. Further, the first polymerizable group may be connected to a first chain connected to a first atom; the second polymerizable group may be connected to a second chain connected to the first atom; and the third polymerizable group may be connected to a third chain connected to the first atom.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 1, 2015
    Inventors: Takeshi Osaki, Kana Naruse, Takashi Miyazawa
  • Publication number: 20140361275
    Abstract: A suitable composition for manufacturing components and devices is disclosed.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Inventors: Takeshi OSAKI, Kana NARUSE, Takashi MIYAZAWA