Patents by Inventor Toshiki Yamada

Toshiki Yamada 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: 11006898
    Abstract: The biological information measurement apparatus includes a first signal applying unit which applies a first applying signal to electrodes at the time of the measurement of biological information, a biological information measurement unit which measures biological information based on detection signals of the electrodes at the time of the measurement of biological information, a second signal applying unit which applies a second applying signal to the electrodes at a time of detection of an attached state, and an attached state detection unit which detects an attached state based on the detection signals at the time of the detection of an attached state. At least some of the electrodes at the time of the measurement of biological information is identical with at least some of the electrodes at the time of the detection of an attached state.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 18, 2021
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Yukimitsu Yamada, Daisuke Takai, Toshiki Nakamura
  • Patent number: 10995211
    Abstract: An oxygen-absorbing resin composition containing an ethylene terephthalate type polyester resin and an organic oxygen absorber and, further, containing cobalt in an amount of 5 to 50 ppm and titanium in an amount of 1 to 15 ppm calculated as elements.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 4, 2021
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yoshiki Sawa, Toshiki Yamada, Yukiko Hirayama, Kanna Muramatsu
  • Publication number: 20210087323
    Abstract: A polyurethane prepolymer produced by reacting a polyol and a polyisocyanate, wherein the polyol contains a polyether polyol (A) in an amount of 30% by mass or more, a polyester polyol (B) containing an isophthalic acid-derived structure and a sebacic acid-derived structure as partial structures derived from a dibasic acid in an amount of 30% by mass or more, and a polyester polyol (C) containing only a sebacic acid-derived structure as a partial structure derived from a dibasic acid in an amount of 20% by mass or less, the number-average molecular weight of the polyether polyol (A) is 1100 to 2400, and the ratio of the isocyanate equivalent of the polyisocyanate to the hydroxyl equivalent of the polyol is 2.1 or less.
    Type: Application
    Filed: May 14, 2019
    Publication date: March 25, 2021
    Applicant: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Ryo KAWAMURA, Kazuya SASAKI, Toshiki YAMADA
  • Publication number: 20210032228
    Abstract: The present invention provides an electro-optic polymer (EO polymer) comprising an electro-optic molecule (EO molecule) and a base polymer. The EO polymer of the present invention has good performance over the entire optical communication wavelength range and therefore can preferably be used for the production of optical modulators, optical switches, optical transceivers, optical phased arrays, LiDAR (light detection and ranging) devices, electric field sensors, terahertz wave generators and detectors, etc.
    Type: Application
    Filed: January 30, 2019
    Publication date: February 4, 2021
    Applicant: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Akira OTOMO, Isao AOKI, Toshiki YAMADA, Chiyumi YAMADA
  • Publication number: 20210026221
    Abstract: The present disclosure provides a method for producing a laminate for non-linear optics.
    Type: Application
    Filed: August 23, 2018
    Publication date: January 28, 2021
    Applicant: National Institute of Information and Communications Technology
    Inventors: Takahiro KAJI, Yukihiro TOMINARI, Toshiki YAMADA, Akira OTOMO
  • Publication number: 20210010856
    Abstract: An optical difference detector includes a first APD and a second APD, a first voltage application unit that applies a first bias voltage to the first APD and a second voltage application unit that applies a second bias voltage to the second APD, a differential amplifier that is connected in parallel to the first APD and the second APD and amplifies a difference between a first signal current output from the first APD and a second signal current output from the second APD, and a feedback control unit that controls the second bias voltage so that a low frequency component of a first monitoring current in the first APD and a low frequency component of a second monitoring current in the second APD are equal.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 14, 2021
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventor: Toshiki YAMADA
  • Publication number: 20200407498
    Abstract: The purpose of the present invention is to provide: a novel polymer which has an electro-optical effect; a method for producing such a polymer; and a light control element which uses such a polymer. The present invention relates to a non-crosslinkable polycarbonate which contains a moiety that has electro-optical characteristics. The present invention also relates to a method for producing a polycarbonate, which comprises a step for reacting a bisphenol compound, a diol compound that has electro-optical characteristics, and a phosgene in the presence of an acid binding agent and solvent. The present invention also relates to a light control element which comprises such polycarbonate.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 31, 2020
    Applicants: TEIJIN LIMITED, NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Naoshi TAKAHASHI, Katsuhiro YAMANAKA, Akira OTOMO, Toshiki YAMADA
  • Patent number: 10626246
    Abstract: A polylactic acid composition of a dispersion structure using, as a matrix, a lowly crystalline or amorphous polylactic acid having a crystallinity of not more than 40%, the matrix containing, as a pulverization promotor dispersed therein, an organically modified polysaccharide or a lamellar silicate that is swollen or that is treated to be swollen. The polylactic acid composition has excellent hydrolysable capability and property of being mechanically pulverized.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: April 21, 2020
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Seishi Yoshikawa, Toshiki Yamada, Tsutaki Katayama
  • Patent number: 10618004
    Abstract: Provided is an abatement device that reduces an amount of drainage of circulating water. The abatement device lowers an average drainage flow of circulating water to a low flow, when a ratio of a concentration of silicon dioxide within the circulating water and a concentration of hydrogen fluoride within the circulating water is greater than or equal to a predetermined value at which hydrofluorosilicic acid can be produced, and raises the average drainage flow of the circulating water to a high flow higher than the low flow, when the ratio of the concentration of silicon dioxide within the circulating water and the concentration of hydrogen fluoride within the circulating water is less than the predetermined value.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 14, 2020
    Assignee: Edwards Japan Limited
    Inventors: Toshiki Yamada, Alexander Michael Pope, Alistair Bennett, Steven Barlow, Christopher Peter Jones
  • Publication number: 20190255737
    Abstract: A formed body having a multilayered structure including inner and outer layers of a first ethylene terephthalate type polyester resin, and an oxygen-absorbing intermediate layer containing a non-polymer type organic oxygen absorber. The oxygen-absorbing intermediate layer, further, contains a second ethylene terephthalate type polyester resin that has relatively more copolymerizable units than the first ethylene terephthalate type polyester resin, the non-polymer type organic oxygen absorber being contained therein in an amount of not less than 5 parts by mass per 100 parts by mass of the second ethylene terephthalate type polyester resin.
    Type: Application
    Filed: August 23, 2017
    Publication date: August 22, 2019
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yoshiki SAWA, Toshiki YAMADA, Yukiko HIRAYAMA, Kanna MURAMATSU
  • Patent number: 10385171
    Abstract: A powder comprising hydrolyzable resin particle, containing particles which do not pass through a sieve having an opening size of 500 ?m in an amount of 50 mass % or more and having a repose angle of 51° or more. This powder is preferably used as an additive for drilling to enhance the drilling properties of a drilling fluid and improve the retentivity of a fracture extending from a winze.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: August 20, 2019
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Seishi Yoshikawa, Toshiki Yamada, Tsutaki Katayama
  • Publication number: 20190225728
    Abstract: An object of the present invention is to provide a novel electro-optic polymer. Another object of the present invention is to provide a novel electro-optic polymer with a low alicyclic methacrylate monomer content. The polymer according to the present invention is a polymer comprising (a) a base polymer having a reactive group (A), (b) an electro-optic molecule having a plurality of reactive groups (B), and a bond (C) formed by reaction of the reactive group (A) with the plurality of reactive groups (B), the bond (C) being at least one type of bond selected from the group consisting of a (thio)ester bond, a (thio)urethane bond, a (thio)urea bond and a (thio)amide bond.
    Type: Application
    Filed: June 28, 2017
    Publication date: July 25, 2019
    Applicant: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Akira OTOMO, Isao AOKI, Toshiki YAMADA
  • Publication number: 20190218366
    Abstract: A formed body made from a resin and having a wall portion, the wall portion containing, as an oxygen-absorbing component, a non-polymeric oxygen-absorbing organic component in an amount of 0.5 to 2.5% by mass, and having a ratio of oxygen permeation rates expressed by the following formula that is suppressed to be not more than 42%: Ratio of oxygen permeation rates=(P/P0)×100 wherein P is an oxygen permeation rate (cc) through the wall portion, and P0 is an oxygen permeation rate (cc) through the wall portion of the same thickness but without containing the oxygen-absorbing component.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 18, 2019
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yukiko HIRAYAMA, Toshiki YAMADA, Yoshiki SAWA, Kanna MURAMATSU
  • Publication number: 20190161610
    Abstract: An oxygen-absorbing resin composition containing an ethylene terephthalate type polyester resin and an organic oxygen absorber and, further, containing cobalt in an amount of 5 to 50 ppm and titanium in an amount of 1 to 15 ppm calculated as elements.
    Type: Application
    Filed: August 4, 2017
    Publication date: May 30, 2019
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yoshiki SAWA, Toshiki YAMADA, Yukiko HIRAYAMA, Kanna MURAMATSU
  • Patent number: 10253124
    Abstract: An object of the present invention is to provide an organic EO polymer having a desired Tg. The present invention provides a copolymer comprising (i) a cycloalkane methacrylate and 2-isocyanatoethyl methacrylate as monomers at an adjusted blending ratio and (ii) an electro-optic molecule (EO molecule) bound to the copolymer, thereby exhibiting a desired glass transition temperature (Tg).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 9, 2019
    Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Akira Otomo, Isao Aoki, Toshiki Yamada, Hideki Miki
  • Patent number: 10233306
    Abstract: An oxygen-absorbing resin composition containing a base resin having a thermoplastic resin; and an oxygen-absorbing component having at least the one selected from the group consisting of an ester, an amide, an imide or a dicarboxylic acid derived from an acid anhydride represented by the following formula (1), wherein, a ring X is an aliphatic ring having an unsaturated bond, n is a number of the substituents Y bonded to the ring X and is an integer of 0 or 1, and Y is an alkyl group, and a polymer having a constituent unit stemming from the acid anhydride. An oxygen-absorbing polyester resin composition exhibits excellent oxygen-absorbing property even in the absence of transition metal catalyst without accompanied by the deterioration of the polyester resin used as a the base resin, the oxygen-absorbing property being strong enough for maintaining gas-barrier properties.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: March 19, 2019
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yoshiki Sawa, Yukiko Hirayama, Toshiki Yamada
  • Publication number: 20180194059
    Abstract: A multilayered preform including inner and outer layers of an ethylene terephthalate type polyester resin, and at least one intermediate layer of at least a lowly crystalline ethylene terephthalate type polyester resin and a gas-barrier aromatic polyamide resin, wherein the lowly crystalline ethylene terephthalate type polyester resin contains, as a copolymerizable component, a cyclohexanedimethanol in an amount of 15 to 20 mol % or an isophthalic acid in an amount of 7.5 to 15 mol %, a weight ratio of the lowly crystalline ethylene terephthalate type polyester resin and the gas-barrier aromatic polyamide resin is in a range of 50:50 to 75:25, a weight ratio of the intermediate layer is not less than 1% by weight but is less than 10% by weight per the whole preform, and a haze is not less than 5% in a portion where a multilayered structure has been formed.
    Type: Application
    Filed: July 13, 2016
    Publication date: July 12, 2018
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yukiko HIRAYAMA, Toshiki YAMADA, Yoshiki SAWA
  • Publication number: 20180141733
    Abstract: A multilayered container obtained by heat-forming a multilayered sheet or a multilayered preform that includes inner and outer layers of an ethylene terephthalate type polyester resin, and at least one intermediate layer of at least a lowly crystalline ethylene terephthalate type polyester resin and a gas-barrier aromatic polyamide resin, wherein a difference of refractive index (?RI) between the lowly crystalline ethylene terephthalate type polyester resin and the gas-barrier aromatic polyamide resin represented by the following formula (1), ?RI=|RIE?RIA|??(1) wherein RIE and RIA are refractive indexes of injection-formed plates made, respectively, from the lowly crystalline ethylene terephthalate type polyester resin and the gas-barrier aromatic polyamide resin after they have been monoaxially stretched into 3 times, is not more than 0.03, and a haze in a side surface of the container is not more than 5%.
    Type: Application
    Filed: June 30, 2016
    Publication date: May 24, 2018
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yukiko HIRAYAMA, Toshiki YAMADA, Takayuki ISHIHARA, Yuuki TASHIRO
  • Patent number: 9919291
    Abstract: An oxygen-absorbing resin composition including a base resin (A) which is a thermoplastic resin, an oxygen-absorbing component (B) which is a compound having an unsaturated alicyclic structure, and an oxidation promotion component (C) for promoting the oxidation of the oxygen-absorbing component (B); wherein the oxygen-absorbing component (B) is an imide compound having a molecular weight of not more than 2,000 and obtained by heat-treating an amide having been obtained by reacting an acid anhydride represented by the following formula (1): wherein the ring X is an alicyclic ring having an unsaturated bond, and Y is an alkyl group, with an aromatic amine, and wherein the oxidation promotion component (C) is a compound having a benzyl hydrogen.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: March 20, 2018
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Toshiki Yamada, Yukiko Hirayama, Yoshiki Sawa
  • Publication number: 20180015413
    Abstract: Provided is an abatement device that reduces an amount of drainage of circulating water. The abatement device lowers an average drainage flow of circulating water to a low flow, when a ratio of a concentration of silicon dioxide within the circulating water and a concentration of hydrogen fluoride within the circulating water is greater than or equal to a predetermined value at which hydrofluorosilicic acid can be produced, and raises the average drainage flow of the circulating water to a high flow higher than the low flow, when the ratio of the concentration of silicon dioxide within the circulating water and the concentration of hydrogen fluoride within the circulating water is less than the predetermined value.
    Type: Application
    Filed: November 5, 2015
    Publication date: January 18, 2018
    Inventors: Toshiki Yamada, Alexander Michael Pope, Alistair Bennett, Steven Barlow, Christopher Peter Jones