Patents by Inventor Mikihiro Kashio

Mikihiro Kashio 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: 10920117
    Abstract: The invention is a curable composition comprising the following component (A) and component (B): Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following specific formula (a-1): R1—D—SiO3/2??(a-1) Component (B): a silane coupling agent having a nitrogen atom in its molecule, and a method for producing the curable composition, and a cured product obtained by curing the curable composition, and a method for using the curable composition as an adhesive for an optical element-fixing material, and a method for using the curable composition as a sealant for an optical element-fixing material, and an optical device obtained by using the curable composition as an adhesive or a sealant for an optical element-fixing material. One aspect of the curable composition according to one embodiment of the invention can provide a cured product excellent in adhesiveness and heat resistance and having a low refractive index.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 16, 2021
    Assignee: LINTEC CORPORATION
    Inventors: Yutaka Nanashima, Hidekazu Nakayama, Manabu Miyawaki, Mikihiro Kashio
  • Patent number: 10774249
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises an acid anhydride structure in its molecule.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 15, 2020
    Assignee: LINTEC CORPORATION
    Inventors: Hidekazu Nakayama, Masami Matsui, Mikihiro Kashio
  • Patent number: 10745559
    Abstract: The invention is a curable composition comprising the following component (A), component (B) and component (C), Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following specific formula (a-1) R1SiO3/2??(a-1) Component (B): a particulate having an average primary particle diameter of 5 to 40 nm Component (C): a particulate having an average primary particle diameter of larger than 0.04 ?m to 8 ?m, and a method for producing the curable composition, and a cured product obtained by curing the curable composition, and a method for using the curable composition as an adhesive for an optical element-fixing material, and a method for using the curable composition as a sealant for an optical element-fixing material. One aspect of the curable composition according to the invention can provide a cured product excellent in adhesiveness, peeling resistance and heat resistance, and a curable composition excellent in workability in coating process.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 18, 2020
    Assignee: LINTEC CORPORATION
    Inventors: Hidekazu Nakayama, Mikihiro Kashio
  • Publication number: 20190300710
    Abstract: The invention is a curable composition comprising the following component (A), component (B) and component (C), Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following specific formula (a-1) R1SiO3/2??(a-1) Component (B): a particulate having an average primary particle diameter of 5 to 40 nm Component (C): a particulate having an average primary particle diameter of larger than 0.04 ?m to 8 ?m, and a method for producing the curable composition, and a cured product obtained by curing the curable composition, and a method for using the curable composition as an adhesive for an optical element-fixing material, and a method for using the curable composition as a sealant for an optical element-fixing material. One aspect of the curable composition according to the invention can provide a cured product excellent in adhesiveness, peeling resistance and heat resistance, and a curable composition excellent in workability in coating process.
    Type: Application
    Filed: December 21, 2016
    Publication date: October 3, 2019
    Applicant: LINTEC CORPORATION
    Inventors: Hidekazu NAKAYAMA, Mikihiro KASHIO
  • Patent number: 10370498
    Abstract: The present invention is a curable polysilsesquioxane compound comprising at least one structural unit represented by CHR1X0-D-SiO3/2, the curable polysilsesquioxane compound having a 29Si nuclear magnetic resonance spectrum that has a first peak top within a range of ?73 ppm or more and less than ?65 ppm, has a second peak top within a range of ?82 ppm or more and less than ?73 ppm, and substantially does not have a peak within a range of ?65 ppm or more and less than ?55 ppm, and a method for producing the curable polysilsesquioxane compound, and a curable composition comprising the curable polysilsesquioxane compound and a silane coupling agent, and a cured product obtained by heating the curable composition, and a method for using the curable polysilsesquioxane compound or the curable composition, as an optical device-securing material.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: August 6, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Masami Matsui, Mikihiro Kashio
  • Patent number: 10308850
    Abstract: The present invention is a curable composition comprising a component (A) and a component (B), the curable composition producing a cured product that has a solid-state Si nuclear magnetic resonance spectrum in which a peak is observed within a range from ?80 ppm or more to less than ?40 ppm, and a half-width of the peak is 500 to 900 Hz, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) the component (B) being at least one silane coupling agent selected from a group consisting of a silane coupling agent that comprises a nitrogen atom in its molecule, and a silane coupling agent that comprises an acid anhydride structure in its molecule, and a method for producing the curable composition, and a cured product, and a method for using the curable composition, and an optical device.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: June 4, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Mikihiro Kashio, Masami Matsui, Yae Ishikawa, Hidekazu Nakayama
  • Patent number: 10294398
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a nitrogen atom in its molecule.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 21, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Mikihiro Kashio, Hidekazu Nakayama, Masami Matsui
  • Patent number: 10266734
    Abstract: The present invention is a curable composition comprising a component (A), a component (B), a component (C), and a component (D), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:20, the component (A) being a silane compound (co)polymer that is represented by a formula (a-1) or a formula (a-2), (CHR1X0-D-SiO3/2)m(R2SiO3/2)n(CHR1X0-D-SiZ1O2/2)o(R2SiZ2O2/2)p(CHR1X0-D-SiZ32O1/2)q(R2SiZ42O1/2)r?? (a-1) (R3SiO3/2)s(R3SiZ5O2/2)t(R3SiZ52O1/2)u?? (a-2) the component (B) being fine particles having an average primary particle size of more than 0.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 23, 2019
    Assignee: LINTEC CORPORATION
    Inventors: Hidekazu Nakayama, Masami Matsui, Mikihiro Kashio
  • Publication number: 20180355111
    Abstract: The invention is a curable composition comprising the following component (A) and component (B): Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following specific formula (a-1): R1—D—SiO3/2??(a-1) Component (B): a silane coupling agent having a nitrogen atom in its molecule, and a method for producing the curable composition, and a cured product obtained by curing the curable composition, and a method for using the curable composition as an adhesive for an optical element-fixing material, and a method for using the curable composition as a sealant for an optical element-fixing material, and an optical device obtained by using the curable composition as an adhesive or a sealant for an optical element-fixing material. One aspect of the curable composition according to one embodiment of the invention can provide a cured product excellent in adhesiveness and heat resistance and having a low refractive index.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 13, 2018
    Applicant: LINTEC CORPORATION
    Inventors: Yutaka NANASHIMA, Hidekazu NAKAYAMA, Manabu MIYAWAKI, Mikihiro KASHIO
  • Patent number: 10113035
    Abstract: The present invention is a curable polysilsesquioxane compound comprising one structural unit or two or more structural units represented by R1SiO3/2, the curable polysilsesquioxane compound having a 29Si nuclear magnetic resonance spectrum that has a first peak top within a range of ?60 ppm or more and less than ?54 ppm, has a second peak top within a range of ?70 ppm or more and less than ?61 ppm, and substantially does not have a peak within a range of ?53 ppm or more and less than ?45 ppm, and a method for producing the curable polysilsesquioxane compound, and a curable composition comprising the curable polysilsesquioxane compound and a silane coupling agent, and a cured product obtained by heating the curable composition, and a method for using the curable polysilsesquioxane compound or the curable composition, as an optical device-securing material.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: October 30, 2018
    Assignee: LINTEC CORPORATION
    Inventors: Masami Matsui, Mikihiro Kashio
  • Patent number: 9963624
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a sulfur atom in its molecule.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 8, 2018
    Assignee: LINTEC CORPORATION
    Inventors: Hidekazu Nakayama, Masami Matsui, Mikihiro Kashio
  • Patent number: 9783715
    Abstract: The present invention relates to: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:30, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material. The present invention provides a curable composition that produces a cured product that exhibits excellent transparency, excellent heat resistance, excellent crack resistance, and high adhesion, a cured product obtained by curing the curable composition, a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material, a sealed optical device in which an optical device is sealed with a cured product of the curable composition, and a method for producing the same.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 10, 2017
    Assignee: LINTEC CORPORATION
    Inventors: Masami Matsui, Mikihiro Kashio
  • Publication number: 20170275513
    Abstract: The present invention is a curable composition comprising a component (A), a component (B), a component (C), and a component (D), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:20, the component (A) being a silane compound (co)polymer that is represented by a formula (a-1) or a formula (a-2), (CHR1X0-D-SiO3/2)m(R2SiO3/2)n(CHR1X0-D-SiZ1O2/2)o(R2SiZ2O2/2)p(CHR1X0-D-SiZ32O1/2)q(R2SiZ42O1/2)r?? (a-1) (R3SiO3/2)s(R3SiZ5O2/2)t(R3SiZ52O1/2)u?? (a-2) the component (B) being fine particles having an average primary particle size of more than 0.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 28, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Hidekazu NAKAYAMA, Masami MATSUI, Mikihiro KASHIO
  • Publication number: 20170267904
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a sulfur atom in its molecule.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 21, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Hidekazu NAKAYAMA, Masami MATSUI, Mikihiro KASHIO
  • Publication number: 20170253781
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises a nitrogen atom in its molecule.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 7, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Mikihiro KASHIO, Hidekazu NAKAYAMA, Masami MATSUI
  • Publication number: 20170253782
    Abstract: The present invention is: a curable composition comprising a component (A), a component (B), and a component (C), the curable composition comprising the component (A) and the component (B) in a mass ratio (component (A):component (B)) of 100:0.3 to 100:50, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) wherein R1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group, the component (B) being fine particles having an average primary particle size of 5 to 40 nm, and the component (C) being a silane coupling agent that comprises an acid anhydride structure in its molecule.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 7, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Hidekazu NAKAYAMA, Masami MATSUI, Mikihiro KASHIO
  • Publication number: 20170210956
    Abstract: The present invention is a curable composition comprising a component (A) and a component (B), the curable composition producing a cured product that has a solid-state Si nuclear magnetic resonance spectrum in which a peak is observed within a range from ?80 ppm or more to less than ?40 ppm, and a half-width of the peak is 500 to 900 Hz, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1), R1SiO3/2??(a-1) the component (B) being at least one silane coupling agent selected from a group consisting of a silane coupling agent that comprises a nitrogen atom in its molecule, and a silane coupling agent that comprises an acid anhydride structure in its molecule, and a method for producing the curable composition, and a cured product, and a method for using the curable composition, and an optical device.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 27, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Mikihiro KASHIO, Masami MATSUI, Yae ISHIKAWA, Hidekazu NAKAYAMA
  • Patent number: 9670326
    Abstract: The present invention is: a curable composition comprising a component (A) and a component (B) in a mass ratio (component (A):component (B)) of 100:0.1 to 100:50; a cured product obtained by curing the curable composition; and a method for using the curable composition as an optical device-securing adhesive or an optical device sealing material.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 6, 2017
    Assignee: LINTEC CORPORATION
    Inventors: Masami Matsui, Mikihiro Kashio
  • Publication number: 20170073474
    Abstract: The present invention is a curable polysilsesquioxane compound comprising at least one structural unit represented by CHR1X0-D-SiO3/2, the curable polysilsesquioxane compound having a 29Si nuclear magnetic resonance spectrum that has a first peak top within a range of ?73 ppm or more and less than ?65 ppm, has a second peak top within a range of ?82 ppm or more and less than ?73 ppm, and substantially does not have a peak within a range of ?65 ppm or more and less than ?55 ppm, and a method for producing the curable polysilsesquioxane compound, and a curable composition comprising the curable polysilsesquioxane compound and a silane coupling agent, and a cured product obtained by heating the curable composition, and a method for using the curable polysilsesquioxane compound or the curable composition, as an optical device-securing material.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 16, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Masami MATSUI, Mikihiro KASHIO
  • Publication number: 20170058083
    Abstract: The present invention is a curable polysilsesquioxane compound comprising one structural unit or two or more structural units represented by R1SiO3/2, the curable polysilsesquioxane compound having a 29Si nuclear magnetic resonance spectrum that has a first peak top within a range of ?60 ppm or more and less than ?54 ppm, has a second peak top within a range of ?70 ppm or more and less than ?61 ppm, and substantially does not have a peak within a range of ?53 ppm or more and less than ?45 ppm, and a method for producing the curable polysilsesquioxane compound, and a curable composition comprising the curable polysilsesquioxane compound and a silane coupling agent, and a cured product obtained by heating the curable composition, and a method for using the curable polysilsesquioxane compound or the curable composition, as an optical device-securing material.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 2, 2017
    Applicant: LINTEC CORPORATION
    Inventors: Masami MATSUI, Mikihiro KASHIO