Patents by Inventor Manabu Fujisawa

Manabu Fujisawa 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: 11072580
    Abstract: A sulfuric acid ester containing a plurality of carbonyl groups or a salt thereof, and a surfactant. The sulfuric acid ester is a compound represented by the following formula: R1—C(?O)—R2—C(?O)—R3—OSO3X wherein R1, R2 and R3 are as defined herein; X is H, a metal atom, NR44, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent, where R4s are each H or an organic group and are the same as or different from each other; and any two of R1, R2, and R3 optionally bind to each other to form a ring.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 27, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoru Yoneda, Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa
  • 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
  • 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
  • Patent number: 10847800
    Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 24, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya Asano, Takashi Iguchi, Manabu Fujisawa, Chihiro Shinoda, Tomoyuki Goto, Kazuki Hosoda, Takahiro Kitahara
  • Publication number: 20200243862
    Abstract: A binder for a secondary battery containing a fluorine-containing polymer (A) and polyvinylidene fluoride (B). The fluorine-containing polymer (A) contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation or an organic cation. Also disclosed is an electrode mixture and an electrode for a secondary battery including the binder, and a secondary battery including the electrode.
    Type: Application
    Filed: October 2, 2018
    Publication date: July 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuki HOSODA, Takahiro KITAHARA, Manabu FUJISAWA, Takashi IGUCHI, Kazuya ASANO, Chihiro SHINODA
  • Publication number: 20200172476
    Abstract: A sulfuric acid ester containing a plurality of carbonyl groups or a salt thereof, and a surfactant. The sulfuric acid ester is a compound represented by the following formula: R1—C(?O)—R2—C(?O)—R3—OSO3X wherein R1, R2 and R3 are as defined herein; X is H, a metal atom, NR44, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent, where R4s are each H or an organic group and are the same as or different from each other; and any two of R1, R2, and R3 optionally bind to each other to form a ring.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 4, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA
  • Publication number: 20200067052
    Abstract: A secondary battery separator including a porous substrate and a porous film firmly bonded to each other, the porous film being disposed on or above the porous substrate. The porous film contains a fluorine-containing polymer that contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation. Also disclosed is a secondary battery including the secondary battery separator; a positive electrode; a negative electrode; and a non-aqueous electrolyte solution.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 27, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro KITAHARA, Manabu FUJISAWA, Takashi IGUCHI, Kazuya ASANO, Chihiro SHINODA
  • Publication number: 20190296359
    Abstract: A binder and an electrode mixture for a secondary battery. The binder contains a fluorine-containing polymer containing a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): R5R6C?CR7R8CO2Y1??(2-2) wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation and/or an organic cation.
    Type: Application
    Filed: September 27, 2017
    Publication date: September 26, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya ASANO, Takashi IGUCHI, Manabu FUJISAWA, Chihiro SHINODA, Tomoyuki GOTO, Kazuki HOSODA, Takahiro KITAHARA
  • Patent number: 9868877
    Abstract: The present invention provides a composition including a fluorine-containing polymer, and excellent in heat resistance even if only a small amount of additives is added to the composition. The present invention relates to a composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b).
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: January 16, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu Nakatani, Toshio Miyatani, Hiroshi Torii, Natsumi Okamoto, Takayuki Hirao, Manabu Fujisawa, Shigehito Sagisaka
  • Patent number: 9834631
    Abstract: The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula: R—O—C(?O)—O—O—C(?O)—O—R wherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: December 5, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Sekiguchi, Manabu Fujisawa, Ryouichi Fukagawa, Takeshi Shimono
  • Publication number: 20160145369
    Abstract: The present invention aims to provide a composition having excellent hydrophilicity, water permeability, mechanical strength, chemical durability, and low-fouling property, and capable of producing a porous polymer membrane from which a hydrophilic agent is less likely to be eluted. The composition of the present invention includes a vinylidene fluoride resin and a copolymer (A) including a vinyl alcohol unit and a fluoromonomer unit.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 26, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshikage OHMUKAI, Kazuya ASANO, Yuko SHIOTANI, Yoshito TANAKA, Manabu FUJISAWA, Kenji ICHIKAWA, Takahiro KITAHARA, Jun MIKI
  • Patent number: 9343744
    Abstract: A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR? (R and R? are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR?— (R? represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 17, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Iguchi, Takahiro Kitahara, Takuji Ishikawa, Toshiki Ichisaka, Kazunobu Uchida, Tomoyuki Fukatani, Manabu Fujisawa, Kenji Ichikawa
  • Publication number: 20160108159
    Abstract: The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula: R—O—C(?O)—O—O—C(?O)—O—R wherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.
    Type: Application
    Filed: April 30, 2014
    Publication date: April 21, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi SEKIGUCHI, Manabu FUJISAWA, Ryouichi FUKAGAWA, Takeshi SHIMONO
  • Publication number: 20150017532
    Abstract: A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR? (R and R? are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR?— (R? represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 15, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Iguchi, Takahiro Kitahara, Takuji Ishikawa, Toshiki Ichisaka, Kazunobu Uchida, Tomoyuki Fukatani, Manabu Fujisawa, Kenji Ichikawa
  • Patent number: 8598290
    Abstract: The present invention provides a method of producing a fluoroelastomer excellent in dispersion stability at low cost, at a high rate of polymerization and in high yields. The present invention is a method of producing a fluoroelastomer comprising an emulsion polymerization of a fluorinated monomer in the presence of a water-soluble radical polymerization initiator, wherein the emulsion polymerization is carried out in the presence of a compound (1) containing a functional group reactive in radical polymerization and a hydrophilic group and a fluorinated compound (2) containing a fluorocarbon group comprising 1 to 6 continuously united carbon atom with fluorine atom directly bound to each of them as well as a hydrophilic group.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: December 3, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Mitsuru Kishine, Masanori Kitaichi, Yousuke Nishimura, Manabu Fujisawa, Yoshiki Tanaka, Shintarou Ogata, Yutaka Ueta, Shigeru Morita
  • Patent number: 8247505
    Abstract: The present invention provides a process for preparing a fluorine-containing elastomer in a high productivity comparable to that of non-iodine transfer polymerization process by carrying out an iodine transfer polymerization at high pressure. The present invention also provides a fluorine-containing elastomer prepared by this process, and fluorine-containing molded articles. The process is a batch copolymerization process conducted under conditions that the reduced temperature of the critical constant is at least 0.95 and the reduced pressure of the critical constant is at least 0.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: August 21, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Yousuke Nishimura, Masaki Irie, Sadashige Irie, Manabu Fujisawa, Satoshi Tokuno, Mitsuru Kishine
  • Patent number: 8242208
    Abstract: The invention provides a fluoropolymer composition capable of improving the characteristics of the cured material obtained therefrom. A fluoropolymer composition comprising a methylene group-containing fluoropolymer (A) and a hydrosilylation catalyst (B), wherein the methylene group-containing fluoropolymer (A) has methylene group-containing repeating units in the main chain thereof and is capable of hydrosilylation in the presence of the hydrosilylation catalyst (B) and one terminus of the chain is a carbon-carbon double bond or an Si—H group and the other terminus of the chain is an Si—H group or a carbon-carbon double bond.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: August 14, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsuya Morikawa, Manabu Fujisawa, Mitsuru Kishine
  • Patent number: 8193308
    Abstract: The present invention provides the process for preparing a fluorine-containing polymer which can easily and efficiently separate a fluorine-containing polymer and water from an aqueous dispersion of a fluorine-containing polymer, and the fluorine-containing polymer obtained by the mentioned preparation process. Further the present invention provides the molded article obtained by crosslinking a curable composition comprising the above-mentioned fluorine-containing polymer and a crosslinking agent. The preparation process is a process for preparing a fluorine-containing polymer comprising a step for heat-treating an aqueous dispersion of a fluorine-containing polymer having a concentration of 3 to 70% by weight to obtain the fluorine-containing polymer having a water content of not more than 1% by weight.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: June 5, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Masaki Irie, Yosuke Nishimura, Manabu Fujisawa
  • Publication number: 20120111601
    Abstract: The present invention provides a composition including a fluorine-containing polymer, and excellent in heat resistance even if only a small amount of additives is added to the composition. The present invention relates to a composition, comprising: a fluorine-containing polymer (a) and a cobalt compound (b).
    Type: Application
    Filed: June 17, 2010
    Publication date: May 10, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu Nakatani, Toshio Miyatani, Hiroshi Torii, Natsumi Okamoto, Takayuki Hirao, Manabu Fujisawa, Shigehito Sagisaka
  • Patent number: 8152227
    Abstract: A structure of mounting a cowl top cover which has a back end portion mounted to a lower end portion of a front windshield panel. The structure includes: a surface portion disposed at the back end portion of cowl top cover, the surface portion covering a surface of lower end portion of front windshield panel and extending in a vehicular widthwise direction; a plurality of clip portions disposed at back end portion of cowl top cover, the lower end portion of front windshield panel being clamped between the clip portions and the surface portion in a plurality of places along the direction in which the surface portion extends; and a thin plate portion disposed at back end portion of cowl top cover, wherein the thin plate portion connecting plurality of clip portions with each other is thinner than surface portion and is spaced apart from front windshield panel.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: April 10, 2012
    Assignee: Nihon Plast Co., Ltd.
    Inventors: Takenori Kurata, Hirofumi Harada, Fumihiko Kimura, Toshiyuki Terada, Takahiro Murata, Manabu Fujisawa, Naoki Kobayashi