Patents by Inventor Takuya SHIMOHARAI

Takuya SHIMOHARAI 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: 20210047499
    Abstract: The polyester resin composition includes: a polyester resin A containing 82 to 88 mass % of a polybutylene terephthalate resin and 12 to 18 mass % of a polyethylene terephthalate resin; a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; and an inorganic filler C having an average particle diameter of 0.05 to 3 ?m in an amount of 1 to 13 parts by mass based on 100 parts by mass of the polyester resin A, wherein the polyester resin composition includes either one or both of alkali metal atoms and alkaline earth metal atoms in an amount of 0.000005 to 0.05 parts by mass based on 100 parts by mass of the polyester resin A, and a content of linear oligomers of polybutylene terephthalate or the like is not more than 1000 mg/kg.
    Type: Application
    Filed: March 25, 2019
    Publication date: February 18, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Kaori FURUKAWA, Takahiro SHIMIZU, Takuya SHIMOHARAI
  • Publication number: 20210002477
    Abstract: Disclosed is an inorganic reinforced thermoplastic polyester resin composition that does not lose the characteristics of a polyester resin, that maintains an excellent surface appearance while having high strength and high stiffness in a formulation containing an inorganic reinforcing material, such as glass fibers, and that undergoes less warping deformation and significantly less burr formation. The polyester resin composition comprises (A) 15 mass % or more and 30 mass % or less of a polybutylene terephthalate resin, (B) 1 mass % or more and less than 15 mass % of at least one polyester resin other than polybutylene terephthalate resins, (C) 5 mass % or more and 20 mass % or less of an amorphous resin, (D) 50 mass % or more and 70 mass % or less of an inorganic reinforcing material, (E) 0.1 mass % or more and 3 mass % or less of a glycidyl group-containing styrene copolymer, (F) 0.5 mass % or more and 2 mass % or less of an ethylene-glycidyl (meth)acrylate copolymer, and (G) 0.
    Type: Application
    Filed: March 5, 2019
    Publication date: January 7, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Motonobu KAMIYA, Takahiro SHIMIZU
  • Publication number: 20200231801
    Abstract: A polyester resin composition contains a polyester resin A containing 50 to 100 mass % of a polybutylene terephthalate resin and 0 to 50 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a predetermined amount of a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; a predetermined amount of a styrenic resin C; and a predetermined amount of an inorganic filler D. The amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg. Inorganic filler D has an average particle size of 0.05 to 3 ?m.
    Type: Application
    Filed: January 26, 2018
    Publication date: July 23, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Yasuto FUJII, Takahiro SHIMIZU
  • Patent number: 10550262
    Abstract: The present invention relates to a polyester resin composition which has an excellent infrared light-transmitting property, and is excellent in heat resistance and low gas emission, and is suitable for use as black colored design parts (particularly as lamp parts). According to the present invention, there is provided a polyester resin composition containing, per 100 parts by mass of a polyester resin, 0.005 to 20 part(s) by mass of an inorganic filler that has an average particle size of 3 ?m or less, 0.05 to 3 part(s) by mass of a polyfunctional glycidyl group-containing styrene polymer and 0.5 to 3 part(s) by mass of an infrared light-transmitting black dye, wherein the polyester resin composition satisfies the following requirements (1) and (2). (1) An average value of transmittances, for wavelengths of 800 to 1100 nm, of a flat plate that is obtained from the polyester resin composition and has a thickness of 2 mm is 5% or higher and less than 20%. (2) Color-L?7.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 4, 2020
    Assignee: TOYOBO CO., LTD.
    Inventors: Takuya Shimoharai, Junichi Yasui
  • Publication number: 20200010667
    Abstract: A polyester resin composition contains a polyester resin A containing 70 to 100 mass % of a polybutylene terephthalate resin and 0 to 30 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, and a predetermined amount of a styrenic resin C. The polyester resin composition contains a predetermined amount of either or both of an alkali metal atom and an alkaline earth metal atom relative to 100 parts by mass of the polyester resin A. In the polyester resin composition, the amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.
    Type: Application
    Filed: January 26, 2018
    Publication date: January 9, 2020
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Satoru HORIGUCHI
  • Patent number: 10385205
    Abstract: The present invention is a polyester resin composition that includes a polyester resin A containing 50 to 100% by mass of a polybutylene terephthalate resin and 0 to 50% by mass of a polyethylene terephthalate resin, a metal organic acid salt B being either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, a polyfunctional glycidyl group-containing styrene-based polymer C in a predetermined amount, and an inorganic filler D having an average particle diameter of 0.05 to 3 ?m. The polyester resin composition contains a predetermined amount of alkali metal atoms/alkaline earth metal atoms, and further the content of linear oligomers of polybutylene terephthalate, or the content of linear oligomers of polybutylene terephthalate and polyethylene terephthalate is less than or equal to 1000 mg/kg.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: August 20, 2019
    Assignee: TOYOBO CO., LTD.
    Inventors: Takuya Shimoharai, Yasuto Fujii, Takahiro Shimizu, Junichi Yasui, Satoru Horiguchi
  • Publication number: 20190002687
    Abstract: A polyester resin composition includes a polyester resin A containing 70 to 100% by mass of a polybutylene terephthalate resin and 0 to 30% by mass of a polyethylene terephthalate resin, and includes a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt and a predetermined amount of a polyfunctional glycidyl group-containing styrene-based polymer C, and the polyester resin composition contains either one or both of alkali metal atoms and alkaline earth metal atoms in a predetermined amount based on 100 parts by mass of the polyester resin A, and further, the content of linear oligomers of polybutylene terephthalate or the content of the linear oligomers of polybutylene terephthalate and the linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 3, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Satoru HORIGUCHI, Junichi YASUI
  • Publication number: 20180319975
    Abstract: The present invention relates to a polyester resin composition which has an excellent infrared light-transmitting property, and is excellent in heat resistance and low gas emission, and is suitable for use as black colored design parts (particularly as lamp parts). According to the present invention, there is provided a polyester resin composition containing, per 100 parts by mass of a polyester resin, 0.005 to 20 part(s) by mass of an inorganic filler that has an average particle size of 3 ?m or less, 0.05 to 3 part(s) by mass of a polyfunctional glycidyl group-containing styrene polymer and 0.5 to 3 part(s) by mass of an infrared light-transmitting black dye, wherein the polyester resin composition satisfies the following requirements (1) and (2). (1) An average value of transmittances, for wavelengths of 800 to 1100 nm, of a flat plate that is obtained from the polyester resin composition and has a thickness of 2 mm is 5% or higher and less than 20%. (2) Color-L?7.
    Type: Application
    Filed: May 26, 2016
    Publication date: November 8, 2018
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Junichi YASUI
  • Publication number: 20180282538
    Abstract: The present invention is a polyester resin composition that is includes a polyester resin A containing 50 to 100% by mass of a polybutylene terephthalate resin and 0 to 50% by mass of a polyethylene terephthalate resin, a metal organic acid salt B being either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, a polyfunctional glycidyl group-containing styrene-based polymer C in a predetermined amount, and an inorganic filler D having an average particle diameter of 0.05 to 3 ?m. The polyester resin composition contains a predetermined amount of alkali metal atoms/alkaline earth metal atoms, and further the content of linear oligomers of polybutylene terephthalate, or the content of linear oligomers of polybutylene terephthalate and polyethylene terephthalate is less than or equal to 1000 mg/kg.
    Type: Application
    Filed: August 24, 2016
    Publication date: October 4, 2018
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Yasuto FUJII, Takahiro SHIMIZU, Junichi YASUI, Satoru HORIGUCHI
  • Publication number: 20180282539
    Abstract: The present invention is directed to a thermoplastic polyester resin composition that contains 100 to 50 parts by mass of a polybutylene terephthalate resin (A) and 0 to 50 parts by mass of a polyethylene terephthalate resin (B), and contains 1 to 20 parts by mass of a surface-treated calcium carbonate (C) having an average particle size of 0.05 to 2 ?m and 0.05 to 3 parts by mass of a multifunctional glycidyl group-containing styrene-based polymer (D) with respect to 100 parts by mass of the total polyester resin contained in the resin composition.
    Type: Application
    Filed: August 24, 2016
    Publication date: October 4, 2018
    Applicant: TOYOBO CO., LTD.
    Inventors: Junichi YASUI, Satoru HORIGUCHI, Takuya SHIMOHARAI
  • Patent number: 9850342
    Abstract: The present invention provides a polyester resin which is excellent in long-term thermal stability and moldability, comprises a dicarboxylic acid component and a glycol component, wherein 10 mol % or more of a furandicarhoxylic acid is contained as the dicarboxylic acid component and the polyester resin satisfies following requirements (1) to (3); (1) a total metal element content is 150 ppm or less relative to the mass of the polyester resin; (2) a phosphorus element content is 100 ppm or less relative to the mass of the polyester resin; and (3) TOD? reduced viscosity represented by the following formula is 0.030 dl/g or less; (TOD? reduced viscosity)=(reduced viscosity before thermal oxidation test)?(reduced viscosity after thermal oxidation test).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 26, 2017
    Assignee: Toyobo Co., Ltd.
    Inventors: Takuya Shimoharai, Koji Kobayashi
  • Publication number: 20160319066
    Abstract: The present invention provides a polyester resin which is excellent in long-term thermal stability and moldability, comprises a dicarboxylic acid component and a glycol component, wherein 10 mol % or more of a furandicarhoxylic acid is contained as the dicarboxylic acid component and the polyester resin satisfies following requirements (1) to (3); (1) a total metal element content is 150 ppm or less relative to the mass of the polyester resin; (2) a phosphorus element content is 100 ppm or less relative to the mass of the polyester resin; and (3) TOD? reduced viscosity represented by the following formula is 0.030 dl/g or less; (TOD? reduced viscosity)=(reduced viscosity before thermal oxidation test)?(reduced viscosity after thermal oxidation test).
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Applicant: TOYOBO CO., LTD.
    Inventors: Takuya SHIMOHARAI, Koji KOBAYASHI