Patents by Inventor Shinsuke MIYAZAWA

Shinsuke MIYAZAWA 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: 11891489
    Abstract: Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200° C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.03×106 g/m3 or more, and a thickness of 15.0 ?m or less.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: February 6, 2024
    Assignee: ZEON CORPORATION
    Inventors: Ayako Kato, Shinsuke Miyazawa
  • Patent number: 11649348
    Abstract: A medicine container which absorbs very little protein over time is manufactured using a resin composition including 50 to 99 wt % of a norbornene-based polymer, and 1 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a weight average molecular weight of 1000 or less in the resin composition being 3 wt % or less.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: May 16, 2023
    Assignee: ZEON CORPORATION
    Inventors: Taichi Sawaguchi, Satoshi Adachi, Shinsuke Miyazawa, Nozomi Yabuki
  • Publication number: 20230136721
    Abstract: A resin composition contains: a resin including one or more among a norbornene-based polymer, a monocyclic cycloolefin-based polymer, a cyclic conjugated diene-based polymer, a vinyl alicyclic hydrocarbon polymer, and hydrogenated products thereof; and a conductive fibrous filler having an aspect ratio of not less than 5 and not more than 500.
    Type: Application
    Filed: August 10, 2021
    Publication date: May 4, 2023
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Publication number: 20230110068
    Abstract: Disclosed is a method of manufacturing a non-woven fabric made of fibers containing a crystalline alicyclic structure-containing resin. The method includes; a step A of melting the crystalline alicyclic structure-containing resin; and a step B of shaping the melted crystalline alicyclic structure-containing resin into the non-woven fabric using a melt-blowing machine. The non-woven fabric has a pore diameter as measured by a bubble point method of 5 ?m or less.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 13, 2023
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Patent number: 11325287
    Abstract: A shaping material contains a crystalline alicyclic structure-containing resin. More specifically, the crystalline alicyclic structure-containing resin in the shaping material has a melting point of 200° C. or higher, and content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: May 10, 2022
    Assignee: ZEON CORPORATION
    Inventors: Shinsuke Miyazawa, Satoshi Yamada, Ayako Kato, Eito Ariura
  • Publication number: 20210301079
    Abstract: Provided is a shaping material with which a shaped product having excellent flame retardancy can be formed. The shaping material contains a hydrogenated cycloolefin ring-opened polymer and an organophosphinate flame retardant. The organophosphinate flame retardant is either or both of a compound indicated by the following formula (I) and a compound indicated by the following formula (II). Moreover, the organophosphinate flame retardant has an average dispersion diameter of 10 ?m or less.
    Type: Application
    Filed: June 18, 2019
    Publication date: September 30, 2021
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Publication number: 20210079183
    Abstract: Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200° C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.03×106 g/m3 or more, and a thickness of 15.0 ?m or less.
    Type: Application
    Filed: February 15, 2019
    Publication date: March 18, 2021
    Applicant: ZEON CORPORATION
    Inventors: Ayako KATO, Shinsuke MIYAZAWA
  • Publication number: 20200398201
    Abstract: Disclosed is a non-woven fabric that can provide a filter capable of achieving a high collection rate, low pressure loss, and long-term use. The non-woven fabric disclosed herein is made of fibers containing a crystalline alicyclic structure-containing resin, and has a pore diameter as measured by a bubble point method of 5 ?m or less.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 24, 2020
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Patent number: 10844162
    Abstract: Provided is a resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer, and a resin formed article comprising a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer. The resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer is suitably used as a raw material for a low-polluting resin formed article, and a low-polluting resin formed article containing the hydrogenated crystalline dicyclopentadiene ring-opening polymer.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: November 24, 2020
    Assignee: ZEON CORPORATION
    Inventors: Shinsuke Miyazawa, Ayako Kato
  • Patent number: 10767019
    Abstract: The invention is a resin composition containing following polymer (A) and polymer (B), wherein a content of the polymer (A) is 1 to 80 wt % based on the total weight of the polymer (A) and the polymer (B), polymer (A) is a alicyclic structure-containing hydrogenated polymer having a heat distortion temperature of 170° C. or higher, polymer (B) is a polymer incompatible with the polymer (A) and having a heat distortion temperature of lower than 170° C., a microporous film formed by using the resin composition, a separator including the microporous film, and a secondary battery having the separator. One aspect of the invention provides a resin composition suitably used as a raw material for a separator of a secondary battery excellent in safety, a microporous film obtained by forming the resin composition, a separator including the microporous film, and a secondary battery having the separator.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 8, 2020
    Assignee: ZEON CORPORATION
    Inventor: Shinsuke Miyazawa
  • Publication number: 20200269477
    Abstract: A shaping material contains a crystalline alicyclic structure-containing resin. More specifically, the crystalline alicyclic structure-containing resin in the shaping material has a melting point of 200° C. or higher, and content of chlorobenzene-soluble components in the shaping material is 1,000 ppm or less as an o-dichlorobenzene-equivalent value based on gas chromatography analysis with o-dichlorobenzene as a standard substance.
    Type: Application
    Filed: March 19, 2018
    Publication date: August 27, 2020
    Applicant: ZEON CORPORATION
    Inventors: Shinsuke MIYAZAWA, Satoshi YAMADA, Ayako KATO, Eito ARIURA
  • Patent number: 10669398
    Abstract: The present invention is a flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger, wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant, and a resin formed article. One aspect of the invention provides a flame-retardant resin composition having excellent flame retardance, low dielectric constant and low dielectric loss tangent, and a resin formed article produced by forming this flame-retardant resin composition.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 2, 2020
    Assignee: ZEON CORPORATION
    Inventors: Ayako Kato, Shinsuke Miyazawa
  • Patent number: 10529494
    Abstract: The present invention is a film capacitor comprising a dielectric film and a metal layer, the dielectric film being a resin film obtained by stretching an unstretched film produced using a crystalline hydrogenated dicyclopentadiene ring-opening polymer, and heating the resulting stretched film, and the resin film having a softening point of 250 to 320° C., a thermal shrinkage ratio of 0.01 to 5.0% when heated at 200° C. for 10 minutes, a loss tangent (tan ?) of 0.0001 to 0.0010, and a coefficient of static friction of 0.01 to 1.00. The present invention provides a film capacitor that includes a resin film as a dielectric film, the resin film exhibiting excellent heat resistance, excellent withstand voltage properties, and excellent workability.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: January 7, 2020
    Assignee: ZEON CORPORATION
    Inventors: Shinsuke Miyazawa, Ayako Kato
  • Publication number: 20190284333
    Abstract: Provided is a resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer, and a resin formed article comprising a hydrogenated crystalline dicyclopentadiene ring-opening polymer and a nucleator, wherein a content of the nucleator is 0.01 to 0.50 part by weight based on 100 parts by weight of the hydrogenated crystalline dicyclopentadiene ring-opening polymer. The resin composition containing a hydrogenated crystalline dicyclopentadiene ring-opening polymer is suitably used as a raw material for a low-polluting resin formed article, and a low-polluting resin formed article containing the hydrogenated crystalline dicyclopentadiene ring-opening polymer.
    Type: Application
    Filed: July 20, 2017
    Publication date: September 19, 2019
    Applicant: ZEON CORPORATION
    Inventors: Shinsuke MIYAZAWA, Ayako KATO
  • Patent number: 10233301
    Abstract: The present invention is a polymer composition comprising a hydrogenated crystalline cycloolefin ring-opening polymer (A) that comprises a repeating unit derived from a polycyclic norbornene-based monomer that includes three or more rings, 5 to 100 parts by weight of a glass filler (B) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and 5 to 20 parts of a metal oxide (C) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and a formed article. The polymer composition according to the present invention exhibits excellent electrical properties (low dielectric loss tangent), excellent adhesion to plating, and excellent reflow heat resistance, and can maintain strength even when subjected to high-temperature/high-humidity conditions.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: March 19, 2019
    Assignee: ZEON CORPORATION
    Inventors: Masatsugu Kato, Shinsuke Miyazawa
  • Patent number: 10086588
    Abstract: A resin material including a hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer and a hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer in a weight ratio (hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer:hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer) of 100:0 to 1:99, the hydrogenated crystalline polar group-containing dicyclopentadiene ring-opening polymer being obtained by melt-mixing a hydrogenated crystalline non-polar dicyclopentadiene ring-opening polymer, a radical initiator, and a polar group-containing compound that includes an ethylenically unsaturated bond, the resin material including a structural unit derived from the polar group-containing compound that includes an ethylenically unsaturated bond in a ratio of 0.05 to 3.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 2, 2018
    Assignee: ZEON CORPORATION
    Inventor: Shinsuke Miyazawa
  • Publication number: 20180179341
    Abstract: The invention is a resin composition containing following polymer (A) and polymer (B), wherein a content of the polymer (A) is 1 to 80 wt % based on the total weight of the polymer (A) and the polymer (B). Polymer (A): an alicyclic structure-containing hydrogenated polymer having a heat distortion temperature of 170° C. or higher Polymer (B): a polymer incompatible with the polymer (A) and having a heat distortion temperature of lower than 170° C., and A microporous film formed by using the resin composition, and A separator including the microporous film, and A secondary battery having the separator. One aspect of the invention provides a resin composition suitably used as a raw material for a separator of a secondary battery excellent in safety, a microporous film obtained by forming the resin composition, a separator including the microporous film, and a secondary battery having the separator.
    Type: Application
    Filed: September 20, 2016
    Publication date: June 28, 2018
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Publication number: 20180105689
    Abstract: Provided is a resin composition comprising 50 to 80 wt % of a norbornene-based polymer, and 20 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a molecular weight of 1000 or less in the resin composition being 3 wt % or less, in which the hydrogenated styrene-based thermoplastic elastomer is an aromatic vinyl-conjugated diene block copolymer having a styrene content of 40 wt % or more, or a block copolymer that includes an aromatic vinyl compound-based polymer block and an isobutylene-based polymer block having a styrene content of 15 wt % or more. Also, a medical drug container that shows very low protein adsorption with the passage of time is produced using such a resin composition.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Applicant: ZEON CORPORATION
    Inventors: Taichi SAWAGUCHI, Satoshi ADACHI, Shinsuke MIYAZAWA, Nozomi YABUKI
  • Publication number: 20180044506
    Abstract: The present invention is a flame-retardant resin composition comprising a cycloolefin-based polymer and a halogen-containing flame retardant selected from a group consisting of a halogenated bisimide compound and a halogen-containing styrene-based resin, and may be comprising a halogen-active species scavenger, wherein a content of the halogen-containing flame retardant is 10 to 80 parts by weight based on 100 parts by weight of the cycloolefin-based polymer, and a content of the halogen-active species scavenger is less than 25 parts by weight based on 100 parts by weight of the halogen-containing flame retardant, and a resin formed article. One aspect of the invention provides a flame-retardant resin composition having excellent flame retardance, low dielectric constant and low dielectric loss tangent, and a resin formed article produced by forming this flame-retardant resin composition.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 15, 2018
    Applicant: ZEON CORPORATION
    Inventors: Ayako KATO, Shinsuke MIYAZAWA
  • Publication number: 20170321030
    Abstract: The present invention is a polymer composition comprising a hydrogenated crystalline cycloolefin ring-opening polymer (A) that comprises a repeating unit derived from a polycyclic norbornene-based monomer that includes three or more rings, 5 to 100 parts by weight of a glass filler (B) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and 5 to 20 parts of a metal oxide (C) based on 100 parts by weight of the hydrogenated crystalline cycloolefin ring-opening polymer (A), and a formed article. The polymer composition according to the present invention exhibits excellent electrical properties (low dielectric loss tangent), excellent adhesion to plating, and excellent reflow heat resistance, and can maintain strength even when subjected to high-temperature/high-humidity conditions.
    Type: Application
    Filed: July 30, 2015
    Publication date: November 9, 2017
    Applicant: ZEON CORPORATION
    Inventors: Masatsugu KATO, Shinsuke MIYAZAWA