Patents by Inventor Naohiko Saito

Naohiko Saito 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: 20220059845
    Abstract: A binder for secondary battery electrodes, which enables the achievement of a secondary battery electrode that has higher binding properties than ever before contains a block polymer that has a polymer block (A) and a polymer block (B), and it is configured such that: the polymer block (A) includes less than 30% by mass of a structural unit derived from (meth)acrylic acid to a total structural units of the polymer block (A); and the polymer block (B) includes 30 mass % or more and 100 mass % or less of a structural unit derived from (meth)acrylic acid to a total structural units of the polymer block (B).
    Type: Application
    Filed: December 10, 2019
    Publication date: February 24, 2022
    Applicant: TOAGOSEI CO. LTD.
    Inventors: Michihiro KAAI, Naohiko SAITO, Toshifumi KONDO
  • Publication number: 20220013785
    Abstract: A binder is for a secondary battery electrode and exhibits high binding properties in an electrode mixture layer and is capable of exhibiting superior cycle characteristics than before. This binder for a secondary battery electrode includes a cross-linked polymer or salt thereof, and the cross-linked polymer or salt thereof has a sol fraction of 5.0 mass % or more and 40 mass % or less. The cross-linked polymer or salt thereof may contain 50 mass % or more and 100 mass % or less of structural units derived from an ethylenic unsaturated carboxylic acid monomer.
    Type: Application
    Filed: December 10, 2019
    Publication date: January 13, 2022
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Tomoko NAKANO, Ayano HIGASAYAMA, Naohiko SAITO
  • Patent number: 11208508
    Abstract: A method for manufacturing polymer fine particles having a narrow particle diameter distribution without any particular limitations on the raw materials and the like. To achieve this purpose, this method for manufacturing polymer fine particles includes polymerizing a vinyl monomer using a dispersion polymerization method, wherein the amount of water in the reaction liquid in the polymerizing is no more than 30,000 ppm, the reactor for carrying out the polymerizing is a stirring tank reactor, the stirring blade attached to the stirring rotation shaft of the stirring tank reactor is one type selected from a large wide blade and a large lattice blade, and the tip speed of the stirring blade is no more than 1.0 m/sec.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 28, 2021
    Assignee: TOAGOSEI CO. LTD.
    Inventors: Takashi Hasegawa, Naohiko Saito, Atsushi Nishiwaki, Hideo Matsuzaki
  • Publication number: 20210399306
    Abstract: A secondary battery electrode has excellent characteristics. As a binder for a secondary battery electrode, a crosslinked polymer or salt thereof having a carboxyl group is used. The crosslinked polymer or salt includes 30 mass % or more and not more than 100 mass % of a structural unit derived from an ethylenically unsaturated carboxylic acid monomer and a metal ion content of the crosslinked polymer or salt thereof is not more than 100 ppm or less.
    Type: Application
    Filed: October 25, 2019
    Publication date: December 23, 2021
    Applicant: TOAGOSEI CO. LTD.
    Inventors: Tomoko NAKANO, Masanori HIROMOTO, Naohiko SAITO
  • Publication number: 20210189177
    Abstract: Provided is a polishing composition which contains a water-soluble polymer and is suitable for reducing LPDs. The polishing composition provided in this application includes an abrasive, a water-soluble polymer, and a basic compound. In the polishing composition, the content of a reaction product of a polymerization initiator and a polymerization inhibitor is 0.1 ppb or less of the polishing composition on a weight basis.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 24, 2021
    Applicants: FUJIMI INCORPORATED, TOAGOSEI CO., LTD.
    Inventors: Kohsuke TSUCHIYA, Hisanori TANSHO, Yusuke SUGA, Taiki ICHITSUBO, Takayuki TAKEMOTO, Naohiko SAITO, Michihiro KAAI
  • Publication number: 20210039655
    Abstract: A proposing method of proposing the tuning of a vehicle includes a step of acquiring information about the vehicle by using an acquisition device installed in the vehicle when the vehicle is driven by a driver and a step of determining the driving characteristics of the driver based on the information about the vehicle and proposing the tuning of the vehicle appropriate for the driver.
    Type: Application
    Filed: June 5, 2020
    Publication date: February 11, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naohiko Saito, Takashi Doi, Naoyuki Sakamoto
  • Patent number: 10847837
    Abstract: A binder for a nonaqueous electrolyte secondary battery electrode, containing a crosslinked polymer or salt thereof having a carboxyl group and a use thereof, and a method of manufacturing the polymer or salt. The polymer has a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in an amount of 50 to 99 mass % of total structural units and a structural unit derived from a nonionic ethylenically unsaturated monomer in an amount of 1 to 50 mass % of the total structural units, the monomer is a compound having a substituent with a carbon atom number of 6 or more, and a particle diameter of the crosslinked polymer is 0.1 to 7.0 ?m in a volume-based median diameter when the crosslinked polymer is neutralized to a neutralization degree of 80 to 100 mol %, subjected to water swelling in water, and then dispersed in a 1 mass % NaCl aqueous solution.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: November 24, 2020
    Assignee: TOAGOSEI CO. LTD.
    Inventors: Hideo Matsuzaki, Naohiko Saito, Kinuko Fujikura, Atsushi Nishiwaki, Akitsugu Shibata
  • Publication number: 20200335791
    Abstract: An aqueous binder for secondary batteries, which has a binding capacity superior than conventional binders while having fine coating property; a secondary battery electrode mixture layer composition and a secondary battery electrode which are acquired by using the binder. This binder for secondary battery electrodes contains: a crosslinked polymer or a salt thereof having a water-swelling degree of 5.0-100 at pH8.
    Type: Application
    Filed: October 23, 2018
    Publication date: October 22, 2020
    Applicant: TOAGOSEI CO. LTD.
    Inventors: Naohiko SAITO, Tomoko NAKANO, Atsushi NISHIWAKI, Takashi HASEGAWA, Hideo MATSUZAKI
  • Patent number: 10790542
    Abstract: A binder for a nonaqueous electrolyte secondary battery electrode, containing a crosslinked polymer or salt thereof having a carboxyl group and a use thereof, and a method of manufacturing the polymer or salt. The polymer has a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in an amount of 50 to 99 mass % of total structural units and a structural unit derived from a nonionic ethylenically unsaturated monomer in an amount of 1 to 50 mass % of the total structural units, the monomer is a compound having a substituent with a carbon atom number of 6 or more, and a particle diameter of the crosslinked polymer is 0.1 to 7.0 ?m in a volume-based median diameter when the crosslinked polymer is neutralized to a neutralization degree of 80 to 100 mol %, subjected to water swelling in water, and then dispersed in a 1 mass % NaCl aqueous solution.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 29, 2020
    Assignee: TOAGOSEI CO. LTD.
    Inventors: Hideo Matsuzaki, Naohiko Saito, Kinuko Fujikura, Atsushi Nishiwaki, Akitsugu Shibata
  • Publication number: 20200263019
    Abstract: A binder for a non-aqueous electrolyte secondary battery electrode that includes a crosslinked polymer having a carboxyl group or a salt thereof, wherein the crosslinked polymer includes 50% by mass or more and 100% by mass or less structural unit derived from an ethylenically unsaturated carboxylic acid monomer relative to all structural units, wherein a total amount of the ethylenically unsaturated carboxylic acid monomer and a salt thereof in terms of a non-neutralized form which is converted from the ethylenically unsaturated carboxylic acid monomer and a salt thereof relative to a total amount of the crosslinked polymer and a salt thereof is 5.0% by mass or less.
    Type: Application
    Filed: March 5, 2018
    Publication date: August 20, 2020
    Applicants: TOAGOSEI CO. LTD., SANYO ELECTRIC CO., LTD.
    Inventors: Takashi HASEGAWA, Naohiko SAITO, Atsushi NISHIWAKI, Hideo MATSUZAKI, Sho URATA, Nobuhiro SAKITANI, Takaharu MORIKAWA
  • Patent number: 10680246
    Abstract: Provided is a binder for a nonaqueous electrolyte secondary battery electrode. The binder contains a crosslinked polymer having a carboxyl group, or salt thereof, a use therefor, and a method for manufacturing a carboxyl group-containing crosslinked polymer or salt thereof for use in the binder. The crosslinked polymer contains a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in the amount of 50 to 100 mass % of total structural units, and after the crosslinked polymer neutralized to a degree of a neutralization of 80 to 100 mol % has been subjected to water swelling in water and then dispersed in a 1 mass % NaCl aqueous solution, the particle diameter thereof is 0.1 to 7.0 ?m in a volume-based median diameter.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: June 9, 2020
    Assignee: TOAGOSEI CO., LTD.
    Inventors: Hideo Matsuzaki, Naohiko Saito, Kinuko Ogura, Atsushi Nishiwaki, Akitsugu Shibata
  • Publication number: 20200044254
    Abstract: A water-based binder for a non-aqueous electrolyte secondary battery. A binder for a non-aqueous electrolyte secondary battery electrode, includes a crosslinked polymer having a carboxyl group or a salt thereof, and the crosslinked polymer includes a structural unit derived from an ethylenically unsaturated carboxylic acid monomer; and a structural unit derived from a macromonomer including at least one compositional monomer selected from compounds represented by following formula (1): [C1] H2C?CR1—X??formula (1) wherein in formula (1), R1 represents a hydrogen or a methyl group; X represents C(?O)OR2 or CN; and R2 represents a straight chain or branched C1-C8 alkyl group or a C3-C8 alkyl group having an alicyclic structure.
    Type: Application
    Filed: March 5, 2018
    Publication date: February 6, 2020
    Applicants: TOAGOSEI CO., LTD., SANYO ELECTRIC CO., LTD.
    Inventors: Naohiko SAITO, Takashi HASEGAWA, Atsushi NISHIWAKI, Hideo MATSUZAKI, Nobuhiro SAKITANI, Sho URATA, Takaharu MORIKAWA
  • Patent number: 10541423
    Abstract: An electrode mixture layer composition for a nonaqueous electrolyte secondary battery contains an active material, water and a binder. The binder contains a crosslinked polymer of a monomer component including an ethylenically unsaturated carboxylic acid monomer, and a salt thereof. The crosslinked polymer is a polymer that is crosslinked with allyl methacrylate, and an amount of the allyl methacrylate used is 0.1 to 2.0 parts by weight relative to total 100 parts by weight of non-crosslinking monomers, and a content of the crosslinked polymer and salt thereof is 0.5% to 5.0% by weight of the active material.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: January 21, 2020
    Assignee: TOAGOSEI CO. LTD.
    Inventors: Hideo Matsuzaki, Naohiko Saito, Morikatsu Matsunaga, Shinya Kumagai
  • Publication number: 20190338057
    Abstract: A method for manufacturing polymer fine particles having a narrow particle diameter distribution without any particular limitations on the raw materials and the like. To achieve this purpose, this method for manufacturing polymer fine particles includes polymerizing a vinyl monomer using a dispersion polymerization method, wherein the amount of water in the reaction liquid in the polymerizing is no more than 30,000 ppm, the reactor for carrying out the polymerizing is a stirring tank reactor, the stirring blade attached to the stirring rotation shaft of the stirring tank reactor is one type selected from a large wide blade and a large lattice blade, and the tip speed of the stirring blade is no more than 1.0 m/sec.
    Type: Application
    Filed: December 22, 2017
    Publication date: November 7, 2019
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Takashi HASEGAWA, Naohiko SAITO, Atsushi NISHIWAKI, Hideo MATSUZAKI
  • Patent number: 10336270
    Abstract: A vehicle and a manufacturing method thereof is provided in which separation of positively charged airflow from a positively charged surface of a vehicle body can be prevented. A vehicle body is insulated from a road surface, and positive static charges accumulate on the vehicle body during propulsion. The vehicle comprises a self-discharge device that is adapted to decrease a positive potential of at least any one of specific points at which positively charged airflow flowing along a vehicle surface deviates therefrom, during propulsion of the vehicle, by discharging static electricity to produce negative ions according to the positive potential of the specific point.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koshi Yamada, Toshio Tanahashi, Hisashi Yabuki, Kazuhiko Omasa, Yoji Kanehara, Nagataka Sassa, Naohiko Saito, Narito Fujii, Tsuyoshi Ohkita, Masaaki Morimoto, Kazuhiro Maeda, Taro Yamashita, Fumiatsu Suzuki
  • Publication number: 20190036164
    Abstract: A binder for a nonaqueous electrolyte secondary battery electrode, containing a crosslinked polymer or salt thereof having a carboxyl group and a use thereof, and a method of manufacturing the polymer or salt. The polymer has a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in an amount of 50 to 99 mass % of total structural units and a structural unit derived from a nonionic ethylenically unsaturated monomer in an amount of 1 to 50 mass % of the total structural units, the monomer is a compound having a substituent with a carbon atom number of 6 or more, and a particle diameter of the crosslinked polymer is 0.1 to 7.0 ?m in a volume-based median diameter when the crosslinked polymer is neutralized to a neutralization degree of 80 to 100 mol %, subjected to water swelling in water, and then dispersed in a 1 mass % NaCl aqueous solution.
    Type: Application
    Filed: January 24, 2017
    Publication date: January 31, 2019
    Applicant: Toagosei Co., Ltd.
    Inventors: Hideo MATSUZAKI, Naohiko SAITO, Kinuko FUJIKURA, Atsushi NISHIWAKI, Akitsugu SHIBATA
  • Publication number: 20180108917
    Abstract: An electrode mixture layer composition for a nonaqueous electrolyte secondary battery contains an active material, water and a binder. The binder contains a crosslinked polymer of a monomer component including an ethylenically unsaturated carboxylic acid monomer, and a salt thereof. The crosslinked polymer is a polymer that is crosslinked with allyl methacrylate, and an amount of the allyl methacrylate used is 0.1 to 2.0 parts by weight relative to total 100 parts by weight of non-crosslinking monomers, and a content of the crosslinked polymer and salt thereof is 0.5% to 5.0% by weight of the active material.
    Type: Application
    Filed: March 29, 2016
    Publication date: April 19, 2018
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Hideo MATSUZAKI, Naohiko SAITO, Morikatsu MATSUNAGA, Shinya KUMAGAI
  • Publication number: 20180102542
    Abstract: A binder for nonaqueous electrolyte secondary battery electrodes, which contains an acrylic crosslinked polymer or salt thereof, and which is characterized in that: the acrylic crosslinked polymer contains, in all the constituent monomers thereof, 30-90% by weight of an ethylenically unsaturated carboxylic acid monomer (component (a)) and 10-70% by weight of an ethylenically unsaturated monomer containing no carboxyl group and having an SP value of a homopolymer of 9.0-12.5 (cal/cm3)1/2 (component (b)); and the ratio of monomers having a ratio of an acryloyl group of the total constituent monomers is 70% by weight or more.
    Type: Application
    Filed: April 11, 2016
    Publication date: April 12, 2018
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Hideo MATSUZAKI, Naohiko SAITO, Morikatsu MATSUNAGA, Shinya KUMAGAI
  • Publication number: 20170352886
    Abstract: Provided is a binder for a nonaqueous electrolyte secondary battery electrode. The binder contains a crosslinked polymer having a carboxyl group, or salt thereof, a use therefor, and a method for manufacturing a carboxyl group-containing crosslinked polymer or salt thereof for use in the binder. The crosslinked polymer contains a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in the amount of 50 to 100 mass % of total structural units, and after the crosslinked polymer neutralized to a degree of a neutralization of 80 to 100 mol % has been subjected to water swelling in water and then dispersed in a 1 mass % NaCl aqueous solution, the particle diameter thereof is 0.1 to 7.0 ?m in a volume-based median diameter.
    Type: Application
    Filed: October 26, 2016
    Publication date: December 7, 2017
    Applicant: TOAGOSEI CO. LTD.
    Inventors: Hideo MATSUZAKI, Naohiko SAITO, Kinuko OGURA, Atsushi NISHIWAKI, Akitsugu SHIBATA
  • Patent number: 9828043
    Abstract: In a moving body side section structure that includes a flow correction fin 1A that is provided on a side section of a moving body, the flow correction fin includes a first inclined portion 1Ae which is formed at a front end in the longitudinal direction of the moving body and in which a width in a width direction of the moving body is widened toward a rear side in the longitudinal direction of the moving body, and a second inclined portion 1Af which is formed further rearward than the first inclined portion 1Ae in the longitudinal direction of the moving body and in which the width in the width direction of the moving body is narrowed toward the rear side in the longitudinal direction of the moving body.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Narito Fujii, Masaaki Morimoto, Koshi Yamada, Nagataka Sassa, Naohiko Saito