Patents by Inventor Taku Kato

Taku Kato 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: 11560003
    Abstract: A recording apparatus includes a recording unit, a scanning unit configured to perform relative scanning by moving the recording unit and a recording medium relative to each other at least once with respect to a unit region on the recording medium, a recovery unit configured to perform a recovery operation for maintaining or recovering a recording performance of the recording unit for application of a recording material, and a control unit configured to control the recovery unit, wherein the control unit acquires recording mode information about recording of an image to be performed on a recording medium for (n+1)-th page (n being a natural number) and determines, based on the acquired recording mode information, whether to perform an inter-page recovery operation at timing after recording of an image on a recording medium for n-th page ends and before recording of an image on a recording medium for (n+1)-th page starts.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: January 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshimitsu Danzuka, Masataka Kato, Hiroto Kango, Rie Takekoshi, Akihiro Tomida, Tomoki Yamamuro, Keita Ishimi, Kazuki Narumi, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato
  • 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
  • Publication number: 20220315713
    Abstract: A method for producing a fluoropolymer powder including (A1) adding, to a fluoropolymer aqueous dispersion obtained by polymerization using a carboxylic acid type hydrocarbon surfactant, and an acid to adjust a pH to 4.0 or less and cause coagulation to thereby obtain a wet fluoropolymer powder containing a fluorine-containing compound represented by the following general formula (1A), and (B1) heat-treating the wet fluoropolymer powder at a temperature higher than 150° C. and lower than 240° C.: General Formula (1A): H—(CF2)m—COOH wherein m is 3 to 19.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 6, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Chiaki OKUI, Hirotoshi YOSHIDA, Hiroyuki SATO, Kenji ICHIKAWA, Taketo KATO, Taku YAMANAKA
  • Publication number: 20220302784
    Abstract: A dynamoelectric machine includes: a winding; a stator core including a slot in which the winding is installed; a cover part that covers the stator core; and a crossing part that is a space formed between the cover part and the stator core, wherein, in the crossing part, an end portion of the winding in an axial direction is exposed, and a filling member is disposed between a side surface of the winding in a radial direction and an inner side surface of the cover part in the radial direction.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 22, 2022
    Inventors: Shinji Kato, Fumiya Nishii, Masaru Sora, Taku Ueda, Takashi Wakui
  • Publication number: 20220289877
    Abstract: Provided is a method for producing polytetrafluoroethylene, which includes polymerizing tetrafluoroethylene in an aqueous medium in the presence of a nucleating agent and a polymer (I) containing a polymerization unit (I) based on a monomer represented by the general formula (I) to obtain polytetrafluoroethylene: 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: May 18, 2022
    Publication date: September 15, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yohei FUJIMOTO, Kenji ICHIKAWA, Yoshinori NANBA, Taketo KATO, Taku YAMANAKA
  • Publication number: 20220282008
    Abstract: The present disclosure provides a method for producing a fluoropolymer, the method includes polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) to obtain a fluoropolymer, wherein the polymer (1) is a polymer of a monomer (1) represented by the general formula (1) below, in which the content of a dimer and a trimer of the monomer (1) is 1.0% by mass or less based on the polymer (1): CF2?CF—R—CZ1Z1-A0 ??(1) wherein R is a linking group; Z1 and Z2 are each independently F or CF3; and A0 is an anionic group.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 8, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshinori NANBA, Taketo KATO, Kenji ICHIKAWA, Soushi TSUCHIYA, Souta YUASA, Yosuke KISHIKAWA, Masahiro HIGASHI, Masaki IRIE, Taku YAMANAKA
  • Publication number: 20220282007
    Abstract: A method for producing a fluoropolymer, which includes: polymerizing a monomer (I) represented by the general formula (I) below in an aqueous medium substantially in the absence of a fluorine-containing surfactant (except for the monomer (I) represented by the general formula (I)) to obtain a crude composition containing a polymer of the monomer (I); removing a dimer and a trimer of the monomer (I) contained in the crude composition from the crude composition to obtain a polymer (I) in which the content of the dimer and trimer of the monomer (I) is 1.0% by mass or less based on the polymer (I); and polymerizing a fluoromonomer in an aqueous medium in the presence of the polymer (I) to obtain a fluoropolymer: CX1X3?CX2R(—CZ1Z2-A0)m??(I) wherein X1 and X3, X2, A0, R, Z1 and Z2 are as defined herein.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 8, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taku YAMANAKA, Masahiro HIGASHI, Taketo KATO, Kenji ICHIKAWA, Yohei FUJIMOTO, Masaki IRIE, Soushi TSUCHIYA, Souta YUASA
  • Publication number: 20220286005
    Abstract: A dynamoelectric machine includes: a winding formed of a bundle of conducting wires; a stator core including a slot in which the winding is disposed; and an insulating paper disposed between the stator core and the winding in the slot, wherein the conducting wires have a self-fusing property, the insulating paper has a foam layer, and a coolant channel is formed between the conducting wires of the winding.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 8, 2022
    Inventors: Taku Ueda, Noriyuki Yagi, Fumiya Nishii, Shinji Kato
  • Publication number: 20220275119
    Abstract: Provided is a method for producing a fluoropolymer, including a polymerization step of polymerizing a fluoromonomer in an aqueous medium having a pH of 4.0 or more in the presence of a hydrocarbon surfactant and a polymerization initiator to obtain a fluoropolymer.
    Type: Application
    Filed: July 27, 2020
    Publication date: September 1, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroyuki SATO, Taketo KATO, Kenji ICHIKAWA, Yohei FUJIMOTO, Taku YAMANAKA
  • Publication number: 20220275237
    Abstract: A PTFE aqueous dispersion having low viscosity at high temperature. The PTFE aqueous dispersion contains PTFE and a nonionic surfactant, has a PTFE solid concentration of 50 to 70% by mass, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55° C. of 50 mPa·s or lower. Also disclosed is a method for producing the PTFE aqueous dispersion, a coating film obtained by applying the PTFE aqueous dispersion, an impregnated film obtained by impregnating the PTFE aqueous dispersion, and a coated article containing a coating film obtained by applying the PTFE aqueous dispersion.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 1, 2022
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Emi YAMAMOTO, Takuya YAMABE, Yoshihiro SODA, Taku YAMANAKA, Takahiro TAIRA, Yohei FUJIMOTO, Taketo KATO
  • Publication number: 20220251251
    Abstract: A method for producing a purified fluoropolymer aqueous dispersion, which includes: (A) bringing a fluoropolymer aqueous dispersion obtained using a hydrocarbon surfactant into contact with an anion exchange resin A or a synthetic adsorbent. The anion exchange resin A has an ion-exchange group represented by the following general formula (A1): —N+R1R2R3X— wherein each of R1, R2, and R3 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R1, R2, and R3 is an organic group having 3 or more carbon atoms; and X is a counter ion; or an ion-exchange group represented by the following general formula (A2): —NR4R5 wherein each of R4 and R5 are the same or different, and are each a hydrogen atom or an organic group, and at least one of R4 and R5 is an organic group having 2 or more carbon atoms.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 11, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadao HAYASHI, Takahiro TAIRA, Hirotoshi YOSHIDA, Chiaki OKUI, Taku YAMANAKA, Taketo KATO
  • Patent number: 10899891
    Abstract: A polymerizable composition includes 100 parts by mass of a reactive polysiloxane being a polycondensation product of an alkoxy silicon compound including at least an alkoxy silicon compound of formula [1], and 10 to 500 parts by mass of a polymerizable compound having at least one polymerizable double bond. (X is a phenyl group having at least one substituent having a polymerizable double bond, a naphthyl group having at least one substituent having a polymerizable double bond, a biphenyl group having at least one substituent having a polymerizable double bond, or a phenanthryl group having at least one substituent having a polymerizable double bond, Ar1 is a condensed ring hydrocarbon group having two or more benzene ring structures, or a hydrocarbon ring assembly group in which two or more aromatic rings are directly bonded through a single bond, and R1 is methyl group, ethyl group, or isopropyl group).
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: January 26, 2021
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Takehiro Nagasawa, Taku Kato, Keisuke Shuto
  • Patent number: 10894800
    Abstract: A polymerizable silane compound that yields a cured product exhibiting a high refractive index and a low Abbe number, used in a polymerizable composition for preparing a molded article having higher transparency. A polysiloxane being a polycondensation product of the compound of formula [1]: (wherein X is a phenyl group having at least one substituent having a polymerizable double bond, a naphthyl group having at least one substituent having a polymerizable double bond, a biphenyl group having at least one substituent having a polymerizable double bond, or a phenanthryl group having at least one group having a polymerizable double bond, Ar1 is a condensed polycyclic hydrocarbon group (optionally substituted with a C1-6 alkyl group), or a hydrocarbon ring assembly group wherein two or more aromatic rings are directly bonded through a single bond (optionally substituted with a C1-6 alkyl group), and R1 is a methyl, ethyl, or isopropyl group).
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: January 19, 2021
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Keisuke Shuto, Taku Kato, Takehiro Nagasawa
  • Patent number: 10787535
    Abstract: A polymerizable composition which can be cured into a cured product exhibiting a low Abbe's number and is suitable for producing a molded article having a further high transparency. A polymerizable composition including 100 parts by mass of a reactive silsesquioxane compound containing a phenanthrene ring (a), and 10 to 500 parts by mass of a polymerizable compound having at least one polymerizable double bond (b), a cured product of the polymerizable composition, and a method for producing a molded article by using of the polymerizable composition.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: September 29, 2020
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Takehiro Nagasawa, Taku Kato, Keisuke Shuto
  • Patent number: 10703863
    Abstract: There is provided a polymerizable composition suitable to produce a molded product in which high refractive index is maintained, and dimensional change and a transmittance change further caused by a high-temperature heat history can be suppressed. A polymerizable composition comprising (a) 100 parts by mass of a specific reactive silsesquioxane compound and (b) 10 to 2,000 parts by mass of a specific fluorene compound, and a cured product obtained by curing the polymerizable composition, and a resin lens manufactured from the polymerizable composition.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: July 7, 2020
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Kei Yasui, Takehiro Nagasawa, Taku Kato, Keisuke Shuto
  • Patent number: 10676643
    Abstract: A coating film-forming composition includes a hydrolysis-condensation product of a hydrolyzable silane and fine inorganic particles subjected to a special dispersion treatment, that can be formed into a highly heat-resistant, highly transparent coating film capable of exhibiting a high refractive index and having a large thickness and excellent storage stability as a coating composition; and a process for producing the coating film-forming composition.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 9, 2020
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku Kato, Masayoshi Suzuki, Natsumi Murakami, Daiki Iijima, Tomoki Furukawa, Yoshinari Koyama
  • Patent number: 10450418
    Abstract: A polymerizable composition suitable for producing a molded article that can maintain a high refractive index and a low Abbe's number and can be restrained from dimensional changes due to a high-temperature thermal history has (a) 100 parts by mass of a specific reactive silsesquioxane compound, (b) 10 to 500 parts by mass of a specific fluorene compound and (c) 1 to 100 parts by mass of a specific aromatic vinyl compound. A cured product can be obtained by curing the polymerizable composition.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 22, 2019
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takehiro Nagasawa, Taku Kato, Kentaro Ohmori, Keisuke Shuto, Kenji Takase
  • Patent number: 10431962
    Abstract: An ignition plug includes a metallic shell containing iron as a main component, carbon in an amount of 0.20 wt. % to 0.30 wt. %, manganese in an amount of 0.30 wt. % to 0.45 wt. %, and sulfur in an amount of 0.005 wt. % to 0.009 wt. %. The ratio of the manganese content (wt. %) to the sulfur content (wt. %); i.e., Mn/S is 40 to 65.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 1, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Taku Kato, Yohei Kozakai
  • Publication number: 20190292324
    Abstract: A polymerizable composition suitable for producing a molded article that can maintain a high refractive index and a low Abbe's number and can be restrained from dimensional changes due to a high-temperature thermal history has (a) 100 parts by mass of a specific reactive silsesquioxane compound, (b) 10 to 500 parts by mass of a specific fluorene compound and (c) 1 to 100 parts by mass of a specific aromatic vinyl compound. A cured product can be obtained by curing the polymerizable composition.
    Type: Application
    Filed: August 12, 2016
    Publication date: September 26, 2019
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takehiro NAGASAWA, Taku KATO, Kentaro OHMORI, Keisuke SHUTO, Kenji TAKASE
  • Publication number: 20190256664
    Abstract: A polymerizable composition includes 100 parts by mass of a reactive polysiloxane being a polycondensation product of an alkoxy silicon compound including at least an alkoxy silicon compound of formula [1], and 10 to 500 parts by mass of a polymerizable compound having at least one polymerizable double bond. (X is a phenyl group having at least one substituent having a polymerizable double bond, a naphthyl group having at least one substituent having a polymerizable double bond, a biphenyl group having at least one substituent having a polymerizable double bond, or a phenanthryl group having at least one substituent having a polymerizable double bond, Ar1 is a condensed ring hydrocarbon group having two or more benzene ring structures, or a hydrocarbon ring assembly group in which two or more aromatic rings are directly bonded through a single bond, and R1 is methyl group, ethyl group, or isopropyl group).
    Type: Application
    Filed: May 24, 2017
    Publication date: August 22, 2019
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Takehiro NAGASAWA, Taku KATO, Keisuke SHUTO