Patents by Inventor Yasukazu Nakatani

Yasukazu Nakatani 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: 20240117204
    Abstract: A coating material composition containing polytetrafluoroethylene, a binder resin, and a filler being at least one kind selected from calcium fluoride, iron oxide and talc, wherein the content of N-methyl-2-pyrrolidone is less than 1% by weight of the composition. Also disclosed is a coating film formed of the coating material composition.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 11, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ozora SHIBATA, Yu Kadowaki, Yasukazu Nakatani
  • Publication number: 20240093052
    Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, wherein at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and the coating composition further contains an inorganic filler, a surfactant, a liquid medium, and a non-fluororesin.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki UEDA, Shingo Okuno, Akiyoshi Yamauchi, Yoshihiro Souda, Yasukazu Nakatani
  • Publication number: 20240084158
    Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki UEDA, Shingo OKUNO, Akiyoshi YAMAUCHI, Yoshihiro SOUDA, Yasukazu NAKATANI
  • Publication number: 20240034901
    Abstract: A coating material composition containing a fluororesin, a polymer (I) containing a polymerization unit (I) derived from a monomer represented by the general formula (I) below, and an aqueous medium, wherein the content of the polymer (I) is 2,000 ppm by mass or less based on the coating material composition: CX1X3?CX2R(—CZ1Z2-A0)m??(I) wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.
    Type: Application
    Filed: September 11, 2023
    Publication date: February 1, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiromichi MOMOSE, Ozora SHIBATA, Emi YAMAMOTO, Taketo KATO, Yasukazu NAKATANI
  • Publication number: 20230399536
    Abstract: A meltable fluororesin primer including a tetrafluoroethylene/hexafluoropropylene copolymer (FEP) particles, a heat-resistant resin, a nonionic surfactant, an acetylenic diol-based surfactant and water, wherein: the FEP particles have an average particle size of 10 to 60 ?m; the heat-resistant resin is selected from polyamideimide resins, polyethersulfone resins and polyimide resins; the solid content mass ratio between the FEP particles and the heat-resistant resin is 50:50 to 95:5; the nonionic surfactant is a polyoxyethylene alkyl ether surfactant; and the meltable fluororesin primer contains 10 to 60% by mass of water based on the meltable fluororesin primer. Also disclosed is a primer film formed from the meltable fluororesin primer, a laminate including a film containing a meltable perfluoropolymer provided on the primer film, and a coated article including the laminate.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotake IMADA, Yasukazu NAKATANI
  • Publication number: 20230399528
    Abstract: A powdery primer composition, containing a meltable fluororesin powder having an average particle size of 5 to 100 ?m; and polyethersulfone powder, wherein the weight ratio between the meltable fluororesin powder and the polyethersulfone powder is 50:50 to 95:5, and the meltable fluororesin has a melt flow rate of 0.1 to 50 g/10 min. Also disclosed is a primer film formed from the powdery primer composition, and a laminate including a film containing a meltable fluororesin provided on the primer film.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu NAKATANI, Hirotake IMADA
  • Patent number: 11827801
    Abstract: A primer for an ETFE coating material containing: ethylene/tetrafluoroethylene copolymer (ETFE) particles; a heat-resistant resin; and a nonionic surfactant. The ETFE particles have an average particle size of 5.0 to 50 ?m. The heat-resistant resin includes at least one selected from polyamide-imide resin, polyethersulfone resin, and polyimide resin. The ETFE particles and the heat-resistant resin have a solid content ratio by mass of 60:40 to 90:10. The nonionic surfactant includes a polyoxyethylene alkyl ether surfactant. Also disclosed is a primer film obtained from the primer for an ETFE coating material as well as a coated article.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: November 28, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotake Imada, Yasukazu Nakatani
  • Publication number: 20230287236
    Abstract: An aqueous coating material composition containing fluororesin particles (A) that can be melt-molded, further containing a binder resin (B), a non-fluorinated surfactant (C) and water (D). The binder resin (B) has a weight loss of 55% or more at 400° C. measured under conditions at 10° C./min under N2, and is contained at a ratio of 10 mass % or less relative to the total solid content of the coating material composition.
    Type: Application
    Filed: May 1, 2023
    Publication date: September 14, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki UEDA, Shingo Okuno, Hirokazu Komori, Yasukazu Nakatani, Akiyoshi Yamauchi
  • Publication number: 20230265309
    Abstract: An aqueous coating material composition containing fluororesin particles (A) that can be melt-molded, further comprising silica particles (B), a non-fluorinated surfactant (C) and water (D), wherein the fluororesin particles (A) have an average particle size of 0.05 to 1000 ?m, wherein the silica particles (B) have an average particle size of 0.1 to 20 ?m, wherein the fluororesin particles (A) and the silica particles (B) have a blending ratio: Fluororesin particles (A)/Silica particles (B)=10/90 to 90/10 (mass ratio), and wherein a content of fluororesin particles (A) is 15 to 80 mass % relative to 100 mass % of solid content of the coating material. Also disclosed is a coated article including a coating layer formed by applying the aqueous coating material composition.
    Type: Application
    Filed: May 3, 2023
    Publication date: August 24, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki UEDA, Shingo OKUNO, Hirokazu KOMORI, Yasukazu NAKATANI, Akiyoshi YAMAUCHI
  • Patent number: 11697276
    Abstract: A coating film obtained from a composition containing a polyaspartic acid ester and a fluoropolymer. Also disclosed is fluorine-containing coating film including a urethane bond and a urea bond, and exhibiting a corrosion from scribe of 1 mm or shorter. Both coating films have a thickness of 100 to 1000 ?m. Also disclosed is a laminate including a base and one or the other of the coating films.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: July 11, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Keiko Washino, Katsuhiko Imoto, Koichiro Ogita, Susumu Wada, Yasukazu Nakatani
  • Publication number: 20230203297
    Abstract: A modified polytetrafluoroethylene aqueous dispersion having low viscosity at high temperature. The modified polytetrafluoroethylene aqueous dispersion contains a modified polytetrafluoroethylene and a nonionic surfactant, has a modified polytetrafluoroethylene solid concentration of 50 to 70% by mass, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55° C. of 80 mPa•s or lower, and the modified polytetrafluoroethylene contains 0.050% by mass or more and 1.00% by mass or less of a polymerized unit based on a modifying monomer.
    Type: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takuya YAMABE, Emi YAMAMOTO, Yoshihiro SODA, Taku YAMANAKA, Ryota USAMI, Taketo KATO, Tomohiro SHIROMARU, Yasukazu NAKATANI
  • Publication number: 20230151241
    Abstract: Provided is a coating material composition that does not use N-methyl-2-pyrrolidone and has the same performance as conventional ones. The coating material composition contains polytetrafluoroethylene, a polyamideimide resin, and a filler, and being substantially free of N-methyl-2-pyrrolidone, wherein the filler has a hardness of 7 to 12 on a new Mohs hardness scale and a primary particle size of 1 ?m or less, wherein the content of the filler is 10 to 30 parts by mass relative to 100 parts by mass of a solid content of the polyamideimide resin in the coating material components, wherein the coating material composition has a viscosity of 10,000 to 20,000 cps, and wherein a degree of dispersion of the coating material as measured according to JIS K5600 with a grind gauge is 5 ?m or less.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 18, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroshi NISHIMURA, Yuu KADOWAKI, Yasukazu NAKATANI
  • Patent number: 11619337
    Abstract: A powder coating material including a main material resin containing an epoxy resin; a phosphorus flame retarder; and at least one inorganic particulate substance selected from metal hydroxides and hydrous metal compounds. The inorganic particulate substance has an average particle size of 0.01 to 9 ?m. The inorganic particulate substance is present in an amount of 80 to 200 parts by mass relative to 100 parts by mass of the main material resin.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: April 4, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotake Imada, Yasukazu Nakatani, Tomohiro Shiromaru
  • Publication number: 20230051217
    Abstract: Provided is a film forming method that can form a film having a thickness of 500 ?m or more with a single coating of a substrate. The present disclosure is a film forming method using a powder coating material containing a polyphenylene sulfide resin, the method including heating the powder coating material at a temperature equal to or higher than a melting point of the polyphenylene sulfide resin and within a range of 250 to 400° C., in which a single coating of a substrate forms a film having a thickness of 500 ?m or more; and the obtained film has a surface roughness, Ra, of 0.30 ?m or less.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 16, 2023
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Yasukazu NAKATANI, Shichou CHIN, Toshio MIYATANI, Hirotake IMADA, Yukari HONDA
  • Publication number: 20220081584
    Abstract: A primer for an ETFE coating material containing: ethylene/tetrafluoroethylene copolymer (ETFE) particles; a heat-resistant resin; and a nonionic surfactant. The ETFE particles have an average particle size of 5.0 to 50 ?m. The heat-resistant resin includes at least one selected from polyamide-imide resin, polyethersulfone resin, and polyimide resin. The ETFE particles and the heat-resistant resin have a solid content ratio by mass of 60:40 to 90:10. The nonionic surfactant includes a polyoxyethylene alkyl ether surfactant. Also disclosed is a primer film obtained from the primer for an ETFE coating material as well as a coated article.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotake IMADA, Yasukazu Nakatani
  • Publication number: 20210278026
    Abstract: A powder coating material including a main material resin containing an epoxy resin; a phosphorus flame retarder; and at least one inorganic particulate substance selected from metal hydroxides and hydrous metal compounds. The inorganic particulate substance has an average particle size of 0.01 to 9 ?m. The inorganic particulate substance is present in an amount of 80 to 200 parts by mass relative to 100 parts by mass of the main material resin.
    Type: Application
    Filed: August 3, 2017
    Publication date: September 9, 2021
    Applicant: DAIKIN INDUSTRIES ,LTD.
    Inventors: Hirotake IMADA, Yasukazu NAKATANI, Tomohiro SHIROMARU
  • Publication number: 20210219775
    Abstract: Provided is a cooking utensil having an excellent design. The cooking utensil includes a bottom and a side extending substantially upward from a perimeter of the bottom. The bottom includes a bottom laminate film on an inner surface thereof. The side includes a side laminate film that is different from the bottom laminate film on an inner surface thereof. The bottom laminate film and the side laminate film have different color tones.
    Type: Application
    Filed: April 19, 2019
    Publication date: July 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Fumiko SHIGENAI, Hiromichi MOMOSE, Yasukazu NAKATANI, Tomohiro SHIROMARU
  • Publication number: 20200282713
    Abstract: A coating film obtained from a composition containing a polyaspartic acid ester and a fluoropolymer. Also disclosed is fluorine-containing coating film including a urethane bond and a urea bond, and exhibiting a corrosion from scribe of 1 mm or shorter. Both coating films have a thickness of 100 to 1000 ?m. Also disclosed is a laminate including a base and one or the other of the coating films.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Keiko WASHINO, Katsuhiko IMOTO, Koichiro OGITA, Susumu WADA, Yasukazu NAKATANI
  • Publication number: 20200231797
    Abstract: A composition including a polymer and at least one compound selected from a reactive polydialkylsiloxane and a fluoropolyether, the polymer containing a perhaloolefin unit and a hydroxy group-containing monomer unit and having a hydroxyl value of 110 to 210 mgKOH/g.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 23, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu NAKATANI, Koichiro OGITA, Katsuhiko IMOTO
  • Patent number: 10298869
    Abstract: A photoelectric conversion device includes a photoelectric conversion unit which includes a phototransistor having a collector region, an emitter region, and a base region to generate an output current according to an intensity of incident light to the phototransistor, and a base potential setting unit which is configured to set up a base potential of the phototransistor so that the output current from the photoelectric conversion unit is equal to a predetermined current value.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 21, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Katsuhiko Aisu, Yasukazu Nakatani, Kazuhiro Yoneda, Takaaki Negoro, Yoshinori Ueda, Katsuyuki Sakurano