Patents by Inventor Shinnosuke NITTA

Shinnosuke NITTA 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).

  • PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT
    Publication number: 20230101829
    Abstract: A composition including a fluoropolymer and substantially free from a compound represented by the following formula (3): (H—(CF2)8—SO3)qM2, wherein M2 is H, a metal atom, NR54, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent; R5s are each H or an organic group and are the same as or different from each other; and q is 1 or 2.
    Type: Application
    Filed: October 26, 2022
    Publication date: March 30, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NANBA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO, Hiroyuki SATO
  • Production method for fluoropolymer, surfactant for polymerization, and use of surfactant
    Patent number: 11512155
    Abstract: A method for producing a fluoropolymer of the invention which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2a—CO—R3a-Aa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-Ab.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 29, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo Kato, Satoru Yoneda, Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa, Shinnosuke Nitta, Marina Nakano, Hirotoshi Yoshida, Yoshinori Nanba, Kengo Ito, Chiaki Okui, Hirokazu Aoyama, Masamichi Sukegawa, Taku Yamanaka, Yuuji Tanaka, Kenji Ichikawa, Yohei Fujimoto, Hiroyuki Sato
  • Sulfonic acid, carboxylic acid, and salts thereof
    Patent number: 11440875
    Abstract: A sulfonic acid or carboxylic acid containing a carbonyl group, or a salt thereof represented by the following formula: R1—C(?O)—(CR22)n—(OR3)p—(CR42)q-L-A wherein R1, R2, R3, R4, n, p, q, A and L are as defined herein.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 13, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Higashi, Satoru Yoneda, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa, Marina Nakano, Shinnosuke Nitta, Hirokazu Aoyama
  • PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT
    Publication number: 20220169830
    Abstract: A surfactant for polymerization including at least one selected from a surfactant represented by R1a—CO—R2a—CO—R3a—OSO3Xa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-OSO3Xb, wherein R1a, R2a, R3a, Xa, R1b, R2b, R3b, R4b, L and Xb are as defined herein. Also disclosed is a composition containing a fluoropolymer and the at least one surfactant, a composition containing a fluoropolymer and a compound represented by (H—(CF2)8—SO3)qM2, where M2 is as defined herein, and a molded article made from the composition containing a fluoropolymer and the compound represented by (H—(CF2)8—SO3)qM2.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Applicant: DAIKIN INDUSTRIES,LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NANBA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Hiroyuki SATO, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO
  • Production method for fluoropolymer, surfactant for polymerization, and use of surfactant
    Patent number: 11279814
    Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2a—CO—R3a—OSO3Xa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-OSO3Xb.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 22, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo Kato, Satoru Yoneda, Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa, Shinnosuke Nitta, Marina Nakano, Hirotoshi Yoshida, Yoshinori Nanba, Kengo Ito, Chiaki Okui, Hirokazu Aoyama, Masamichi Sukegawa, Taku Yamanaka, Hiroyuki Sato, Yuuji Tanaka, Kenji Ichikawa, Yohei Fujimoto
  • POLYTETRAFLUOROETHYLENE AND STRETCHED BODY
    Publication number: 20210221992
    Abstract: A polytetrafluoroethylene having a breaking strength of 10.0 N or more and a thermal instability index (TII) of 20 or more. Also disclosed is a stretched body including the polytetrafluoroethylene.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Yohei FUJIMOTO, Kenji ICHIKAWA, Hiroyuki SATO, Ryota USAMI, Yoshinori NANBA, Hirotoshi YOSHIDA, Kengo ITO, Chiaki OKUI, Masamichi SUKEGAWA, Taku YAMANAKA, Yosuke KISHIKAWA, Hirokazu AOYAMA, Satoru YONEDA, Sumi ISHIHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Shinnosuke NITTA, Marina NAKANO
  • PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT
    Publication number: 20210115224
    Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2 a—CO—R3a—OSO3Xa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-OSO3Xb.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NAN BA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Hiroyuki SATO, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO
  • PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT
    Publication number: 20210108008
    Abstract: A method for producing a fluoropolymer of the invention which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2a—CO—R3a-Aa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-Ab.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 15, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NANBA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO, Hiroyuki SATO
  • ALKYL SULFATE ESTER OR SALT OF SAME
    Publication number: 20200399211
    Abstract: An alkyl sulfate ester containing a carbonyl group or a salt thereof. The compound is represented by the following formula: R1—C(?O)—(CR22)n—(OR3)p(CR42)q-L-OSO3X wherein R1, R2, R3, R4, L, X, n, p and q are as defined herein. Also disclosed is a production method for making the alkyl sulfate ester.
    Type: Application
    Filed: March 30, 2018
    Publication date: December 24, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoru YONEDA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Marina NAKANO, Shinnosuke NITTA, Hirokazu AOYAMA
  • SULFONIC ACID, CARBOXYLIC ACID, AND SALTS THEREOF
    Publication number: 20200024229
    Abstract: A sulfonic acid or carboxylic acid containing a carbonyl group, or a salt thereof represented by the following formula: R1—C(?O)—(CR22)—(OR3)p—(CR42)q-L-A wherein R1, R2, R3, R4, n, p, q, A and L are as defined herein.
    Type: Application
    Filed: March 30, 2018
    Publication date: January 23, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro HIGASHI, Satoru YONEDA, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Marina NAKANO, Shinnosuke NITTA, Hirokazu AOYAMA