Patents by Inventor Yasuyuki Takimoto

Yasuyuki Takimoto 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: 10910640
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of elements in Groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (II) containing Li and P, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said P to said metal element (P/metal element) contained within 5 nm of the surface layer of the particles (III) is from 0.03 to 0.45.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 2, 2021
    Assignee: SUMITOMO CHEMICAL CO., LTD
    Inventors: Takeshi Kawasato, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki, Tegi Ri
  • Publication number: 20190245202
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of elements in Groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (II) containing Li and P, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said P to said metal element (P/metal element) contained within 5 nm of the surface layer of the particles (III) is from 0.03 to 0.45.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: SUMITOMO CHEMICAL CO., LTD
    Inventors: Takeshi KAWASATO, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki, Tegi Ri
  • Patent number: 10326127
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of elements in Groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (II) containing Li and P, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said P to said metal element (P/metal element) contained within 5 nm of the surface layer of the particles (III) is from 0.03 to 0.45.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: June 18, 2019
    Assignee: SUMITOMO CHEMICAL CO., LTD.
    Inventors: Takeshi Kawasato, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki, Tegi Ri
  • Patent number: 10135064
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of Al, Y, Ga, In, La, Pr, Nd, Gd, Dy, Er and Yb, and a compound (II) containing Li and at least one non-metal element selected from the group consisting of S and B, on the surface of a lithium-containing composite oxide, wherein the atomic ratio (the non-metal element/the metal element) contained within 5 nm of the surface layer of the particles (III) is within a specific range.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 20, 2018
    Assignee: SUMITOMO CHEMICAL CO., LTD.
    Inventors: Takeshi Kawasato, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki
  • Publication number: 20140212758
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of elements in Groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (II) containing Li and P, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said P to said metal element (P/metal element) contained within 5 nm of the surface layer of the particles (III) is from 0.03 to 0.45.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takeshi KAWASATO, Kentaro TSUNOZAKI, Haisheng ZENG, Yasuyuki TAKIMOTO, Toshio SUZUKI, Tegi RI
  • Publication number: 20140154581
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of Al, Y, Ga, In, La, Pr, Nd, Gd, Dy, Er and Yb, and a compound (II) containing Li and at least one non-metal element selected from the group consisting of S and B, on the surface of a lithium-containing composite oxide, wherein the atomic ratio (the non-metal element/the metal element) contained within 5 nm of the surface layer of the particles (III) is within a specific range.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takeshi KAWASATO, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki
  • Patent number: 7419924
    Abstract: It is to provide a silica glass containing TiO2, having a wide temperature range wherein the coefficient of thermal expansion is substantially zero. A silica glass containing TiO2, which has a TiO2 concentration of from 3 to 10 mass %, a OH group concentration of at most 600 mass ppm and a Ti3+ concentration of at most 70 mass ppm, characterized by having a fictive temperature of at most 1,200° C., a coefficient of thermal expansion from 0 to 100° C. of 0±150 ppb/° C., and an internal transmittance T400-700 per 1 mm thickness in a wavelength range of from 400 to 700 nm of at least 80%. A process for producing a silica glass containing TiO2, which comprises porous glass body formation step, F-doping step, oxygen treatment step, densification step and vitrification step.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: September 2, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Akio Koike, Yasutomi Iwahashi, Yasuyuki Takimoto, Shinya Kikugawa
  • Publication number: 20070042893
    Abstract: It is to provide a silica glass containing TiO2, having a wide temperature range wherein the coefficient of thermal expansion is substantially zero. A silica glass containing TiO2, which has a TiO2 concentration of from 3 to 10 mass %, a OH group concentration of at most 600 mass ppm and a Ti3+ concentration of at most 70 mass ppm, characterized by having a fictive temperature of at most 1,200° C., a coefficient of thermal expansion from 0 to 100° C. of 0±150 ppb/° C., and an internal transmittance T400-700 per 1 mm thickness in a wavelength range of from 400 to 700 nm of at least 80%. A process for producing a silica glass containing TiO2, which comprises porous glass body formation step, F-doping step, oxygen treatment step, densification step and vitrification step.
    Type: Application
    Filed: October 31, 2006
    Publication date: February 22, 2007
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Akio Koike, Yasutomi Iwahashi, Yasuyuki Takimoto, Shinya Kikugawa
  • Patent number: 6335857
    Abstract: An electrode for an electric double layer capacitor, which is a sheet electrode comprising a carbonaceous material and a polytetrafluoroethylene and having a K value_which is calculated by formula 1 from X-ray diffraction peak intensities measured by means of CuK&agr;-radiation of at most 20: K=IPTFE/(ICARBON×(CPTFE/CCARBON)) where IPTFE is the X-ray diffraction peak intensity of the polytetrafluoroethylene in the vicinity of 2&thgr;=18°, ICARBON is the X-ray diffraction peak intensity of the carbonaceous material in the vicinity of 2&thgr;=43°, CPTFE is the concentration by weight of the polytetrafluoroethylene in the electrode, and CCARBON is the concentration by weight of the carbonaceous material in the electrode.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: January 1, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yasuyuki Takimoto, Manabu Suhara, Takamichi Ishikawa
  • Patent number: 6153535
    Abstract: A method for removing a thin film, which comprises applying a powder or solution of a salt to a thin film formed on a substrate, followed by heating to remove the thin film at the applied portion, wherein as the salt, a salt having some or all of hydrogen ions of an acid substituted by ammonium ions or alkali metal ions, is used.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: November 28, 2000
    Assignee: Asahi Glass Company Ltd.
    Inventor: Yasuyuki Takimoto
  • Patent number: 5049927
    Abstract: The present invention provides a new process for recording an image by using the above mentioned phenomenon. The process comprises (i) inserting an anisotropic molecular oriented film between two polarizing film of which polarization directions are parallel or perpendicular to each other, so that the anisotropy of said anisotropic molecular oriented film forms an angle of 45.degree. to the polarization directions of said polarizing film, and (ii) completely or incompletely degrading the anisotropy of an image portion in said anisotropic molecular oriented film.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: September 17, 1991
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroshi Tsushima, Masami Kawabata, Yasuyuki Takimoto
  • Patent number: 4965171
    Abstract: Disclosed is a photopolymerizable composition which is very sensitive to visible light. The composition comprises a polymerizable compound and a photopolymerization initiator wherein the photopolymerization initiator comprises (A) a particular xanthene, coumarin or merocianine dyestuff, (B) a diaryliodonium salt and (C) a compound having the formula; R(n)--D--CH.sub.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: October 23, 1990
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masami Kawabata, Masahiko Harada, Yasuyuki Takimoto
  • Patent number: 4939069
    Abstract: Disclosed is a photopolymerizable composition which is very sensitive to light, especially visible light having a wave length of 600 to 700 nm. The photopolymerizable composition comprising a polymerizable compound having an ethylenically unsaturated double bond and a photopolymerization initiator wherein the photopolymerization initiator comprises (a) a specific sensitizer and (b) a radical forming agent.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: July 3, 1990
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masami Kawabata, Masahiko Harada, Yasuyuki Takimoto
  • Patent number: 4868092
    Abstract: Disclosed is a photopolymerizable composition which is very sensitive to visible light. The composition comprises a polymerizable compound and a photopolymerization initiator wherein the photopolymerization initiator comprises (A) a particular xanthene, coumarin or merocianine dyestuff, (B) a diaryliodonium salt and (C) a compound having the formula;R(n)--D--CH.sub.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masami Kawabata, Masahiko Harada, Yasuyuki Takimoto
  • Patent number: 4766055
    Abstract: Disclosed is a photopolymerizable composition which is very sensitive to visible light. The composition comprises a polymerizable compound and a photopolymerization initiator wherein the photopolymerization initiator comprises (a) a particular xanthene or thioxanthene dyestuff, (b) a photosensitizer selected from the group consisting of N-phenylglycine, 2,4,6-tris(trichloromethyl)-1,3,5-triazine, and a mixture of p-dimethylaminobenzoic acid isopentyl ester and 2,4-diisopropylthioxanthone, and (c) a peroxide.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: August 23, 1988
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Masami Kawabata, Koichi Kimoto, Yasuyuki Takimoto
  • Patent number: 4251622
    Abstract: A photo-sensitive composition for dry formation of image comprising a dyestuff having a photo-fading property, a ketonic sensitizing agent and a high molecular polymer as a binding agent, which can provide a visible image by the irradiation of light and maintain the image without any fixing treatment.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: February 17, 1981
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Koichi Kimoto, Yasusi Umeda, Shin Saito, Kunsei Tanabe, Yasuyuki Takimoto
  • Patent number: 4226930
    Abstract: A method of production of photopolymer printing plates particularly characterized in the transfer procedure. In the method, an electrostatic latent image of original material is produced on a photoconductive medium, the image is developed by application of toner particles, and the toner image is transferred onto photopolymer printing plates having photosensitive resin layer or containing polymerizable monomer through linear pressure of line contact. The toner image thus transferred is then exposed to light without being fixed, plate portions defined by the toner image being subsequently removed together with the toner particles.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: October 7, 1980
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Yasuyuki Takimoto, Kunsei Tanabe, Shin Saito, Masakatsu Nishimura, Yasushi Umeda
  • Patent number: 4103057
    Abstract: Duplicate thermoplastic plates are composed of a composition comprising a 1,2-polybutadiene having a crystallinity of about 10-30% and an intrinsic viscosity of greater than about 0.7. Matrices against which the duplicate thermoplastic plates are molded are formed of material containing said 1,2-PBD and a photoinitiator or a thermo-curable catalyst. The duplicate thermoplastic plates and matrices can give a high duration and reproducibility from an original pattern bearing design or image in relief, and they are molded with ease and in a great amount without difficulty. The use of the thermoplastic plates or matrices can provide a good releasability from the matrix against which the said plates are molded and from the original pattern against which the matrices are formed.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: July 25, 1978
    Assignee: Nippon Paint Company
    Inventors: Yasuyuki Takimoto, Toshikazu Yoshikawa
  • Patent number: 4044385
    Abstract: Printing plate production apparatus wherein a latent image is formed at the surface of photoconductive insulating sheet, either by an optical system for effecting sheet exposure or by a laser emission scanning system which constitutes the terminal of a facsimile transmission system, this latent image is developed by toner particles, for example, which are applied on, but not fixed on the photoconductive sheet, the developed image is temporarily transferred onto a printing plate with which the photoconductive sheet is brought into pressure contact, and the printing plate carrying the developed image is exposed to light which may effect chemical changes in the printing plate to harden portion thereof unprotected by toner particles after which the printing plate receives treatment to remove toner particles and unhardened portions thereof.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: August 23, 1977
    Assignee: Nippon Paint
    Inventors: Masakatsu Nishimura, Shin Saito, Kunsei Tanabe, Yasusi Umeda, Seiji Arimatsu, Yasuyuki Takimoto
  • Patent number: 4038078
    Abstract: A process for formation of a relief image which comprises exposing a layer of a photosensitive composition in liquid provided on the surface of a support material to light through a negative to make cured the photosensitive composition at the exposed part and eliminating the non-cured photosensitive composition at the non-exposed part by suctioning for development, the photosensitive composition comprising as the essential components only (1) at least one addition polymerizable unsaturated monomer having at least one acryloyl or methacryloyl group per each molecule and a molecular weight of not more than about 1000 per each acryloyl or methacryloyl group and (2) at least one photopolymerization initiator.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: July 26, 1977
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kiyomi Sakurai, Yasuyuki Takimoto