Patents by Inventor Keiichi Yokoyama

Keiichi Yokoyama 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: 10646140
    Abstract: A risk-of-falling determination apparatus includes a walk information obtainer that obtains walk information of a user, a myoelectric sensor that measures a first myoelectric potential difference on an anterior surface of a thigh of the user and a second myoelectric potential difference on a posterior surface of the thigh, a control circuit that identifies an interval of a stance phase by using the walk information, calculates a degree of co-contraction at a corresponding leg of the user on the basis of the first and second myoelectric potential differences for the stance phase, and determines whether the degree of co-contraction is greater than or equal to a first threshold, and an outputter that outputs a signal indicating that the user has a high risk of falling if the degree of co-contraction is greater than or equal to the first threshold.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 12, 2020
    Assignee: Panasonic Intellectual Properly Management Co., Ltd.
    Inventors: Souksakhone Bounyong, Shinobu Adachi, Jun Ozawa, Misaka Kimura, Yuya Watanabe, Keiichi Yokoyama
  • Patent number: 10636557
    Abstract: One object of the present invention is to enable identification of the direction of an electronic component, while suppressing increase in cost. The present invention provides an electronic component comprising: an insulator portion having a plurality of surfaces (e.g., a top surface, a bottom surface, end surfaces, and side surfaces), the insulator portion including a plurality of regions having different transmissivities of a light beam entering one of the plurality of surfaces (e.g., a top surface, a bottom surface, end surfaces, and side surfaces); an internal conductor portion provided in the insulator portion; and external electrodes provided on the insulator portion and electrically connected to the internal conductor portion.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: April 28, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Ikuo Kakiuchi, Masataka Kohara, Ichiro Yokoyama, Keiichi Nozawa, Masakazu Okazaki, Yoshikazu Maruyama, Masuo Yatabe
  • Publication number: 20200027758
    Abstract: The substrate processing apparatus includes a processing chamber including an outer chamber configured to hold a processing liquid and an inner chamber capable of surrounding the substrate held by the substrate holder; a liquid delivery pipe having one end coupled to a bottom of the inner chamber and other end coupled to the outer chamber; a pump configured to suck the processing liquid from the inner chamber through the liquid delivery pipe and to deliver the processing liquid to the outer chamber through the liquid delivery pipe; and a guide cover having a through-hole in which the substrate holder can be inserted. The guide cover is located below an upper end of the outer chamber and above the inner chamber.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Keiichi Kurashina, Toshio Yokoyama
  • Publication number: 20200027759
    Abstract: The substrate processing apparatus includes a processing chamber including an outer chamber configured to hold a processing liquid and an inner chamber capable of surrounding the substrate held by the substrate holder; a liquid delivery pipe having one end coupled to a bottom of the inner chamber and other end coupled to the outer chamber; a pump configured to suck the processing liquid from the inner chamber through the liquid delivery pipe and to deliver the processing liquid to the outer chamber through the liquid delivery pipe; and a guide cover having a through-hole in which the substrate holder can be inserted. The guide cover is located below an upper end of the outer chamber and above the inner chamber.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Inventors: Keiichi Kurashina, Toshio Yokoyama
  • Patent number: 10463594
    Abstract: A method for perming or coloring hair, in which hair is treated with a cosmetic composition including a protein-glutaminase and not including an alkaline substance. A method of enhancing hair-permeation of an active ingredient included in a cosmetic composition, in which a protein glutaminase is included in the cosmetic composition. The cosmetic composition does not include an alkaline substance, and the active ingredient is at least one of a hair perm agent and a hair coloring agent.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: November 5, 2019
    Assignee: AJINOMOTO CO., INC.
    Inventors: Keiichi Yokoyama, Eiko Oshimura, Masayo Date, Yukiko Umezawa
  • Patent number: 10468274
    Abstract: The substrate processing apparatus includes a processing chamber including an outer chamber configured to hold a processing liquid and an inner chamber capable of surrounding the substrate held by the substrate holder; a liquid delivery pipe having one end coupled to a bottom of the inner chamber and other end coupled to the outer chamber; a pump configured to suck the processing liquid from the inner chamber through the liquid delivery pipe and to deliver the processing liquid to the outer chamber through the liquid delivery pipe; and a guide cover having a through-hole in which the substrate holder can be inserted. The guide cover is located below an upper end of the outer chamber and above the inner chamber.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 5, 2019
    Assignee: EBARA CORPORATION
    Inventors: Keiichi Kurashina, Toshio Yokoyama
  • Patent number: 10413874
    Abstract: An exhaust gas purification device including: a spray nozzle provided in an exhaust pipe of an engine; a mixer provided downstream of the spray nozzle in a flow direction of exhaust gas; and a catalyst reactor provided downstream of the mixer. The exhaust gas purification device is configured to spray a reducing agent from the urea water spray nozzle to the exhaust gas from the engine, to mix the reducing agent with the exhaust gas in the mixer, and to reduce nitrogen oxides in the exhaust gas using the catalyst reactor. The mixer includes a cylindrical body and a plurality of fins arranged in the cylindrical body radially outward with respect to the axis of the cylindrical body. The upstream portion of each fin is shaped to provide a cutoff portion.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 17, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Ryota Kobayashi, Tetsuya Yokoyama, Yoshinori Fukui, Keiichi Tsujimoto, Kenya Onishi
  • Patent number: 10374224
    Abstract: A method of manufacturing a non-aqueous electrolyte solution secondary battery includes: (A) preparing a first composite material by mixing a first positive electrode active material, a first conductive material and a first binder; (B) preparing a second composite material by mixing a second positive electrode active material, a second conductive material and a second binder; and (C) manufacturing a positive electrode by forming a positive electrode composite layer including the first composite material and the second composite material. The first positive electrode active material has an average discharge potential lower than that of the second positive electrode active material. The first conductive material has a first OAN. The second conductive material has a second OAN. A ratio of the second OAN to the first OAN is 1.3 or more and 2.1 or less. A sum of the first OAN and the second OAN is 31.64 ml/100 g or less.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: August 6, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Torita, Tatsuya Hashimoto, Keiichi Takahashi, Akihiro Taniguchi, Shuji Tsutsumi, Yusuke Fukumoto, Yuji Yokoyama
  • Publication number: 20170196483
    Abstract: A risk-of-falling determination apparatus includes a walk information obtainer that obtains walk information of a user, a myoelectric sensor that measures a first myoelectric potential difference on an anterior surface of a thigh of the user and a second myoelectric potential difference on a posterior surface of the thigh, a control circuit that identifies an interval of a stance phase by using the walk information, calculates a degree of co-contraction at a corresponding leg of the user on the basis of the first and second myoelectric potential differences for the stance phase, and determines whether the degree of co-contraction is greater than or equal to a first threshold, and an outputter that outputs a signal indicating that the user has a high risk of falling if the degree of co-contraction is greater than or equal to the first threshold.
    Type: Application
    Filed: December 28, 2016
    Publication date: July 13, 2017
    Inventors: SOUKSAKHONE BOUNYONG, SHINOBU ADACHI, JUN OZAWA, MISAKA KIMURA, YUYA WATANABE, KEIICHI YOKOYAMA
  • Publication number: 20170112751
    Abstract: A method for perming or coloring hair, in which hair is treated with a cosmetic composition including a protein-glutaminase and not including an alkaline substance. A method of enhancing hair-permeation of an active ingredient included in a cosmetic composition, in which a protein glutaminase is included in the cosmetic composition. The cosmetic composition does not include an alkaline substance, and the active ingredient is at least one of a hair perm agent and a hair coloring agent.
    Type: Application
    Filed: January 5, 2017
    Publication date: April 27, 2017
    Applicant: AJINOMOTO CO., INC.
    Inventors: Keiichi YOKOYAMA, Eiko OSHIMURA, Masayo DATE, Yukiko UMEZAWA
  • Patent number: 9458288
    Abstract: Polyester compounds obtained by reaction of a compound represented by formula (1): (defined herein) with a compound represented by formula (2): (defined herein) exhibit high thermal resistance.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 4, 2016
    Assignee: Ajinomoto Co., Inc.
    Inventors: Fumi Shozui, Ryotaro Nakaya, Takashi Ineyama, Keiichi Yokoyama
  • Patent number: 9458289
    Abstract: Polyester compounds obtained by reaction of a compound represented by formula (1): (defined herein) with a compound represented by formula (2): (defined herein) exhibit high thermal resistance.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 4, 2016
    Assignee: Ajinomoto Co., Inc.
    Inventors: Fumi Shozui, Ryotaro Nakaya, Takashi Ineyama, Keiichi Yokoyama
  • Patent number: 9447443
    Abstract: The present invention provides a method for conveniently and efficiently producing a 3-acetylamino-4-hydroxybenzoic acid-type compound that is a stable compound by a process using a microorganism. Specifically the present invention provides a microorganism having an ability to produce 3-amino-4-hydroxybenzoic acid, that is modified so as to increase an activity to form 3-amino-4-hydroxybenzoic acid from dihydroxyacetone phosphate and aspartate semialdehyde, wherein the microorganism is modified so as to increase an N-hydroxyarylamine O-acetyltransferase (NhoA) activity, as well as a method for producing the 3-acetylamino-4-hydroxybenzoic acid-type compound using such a microorganism.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: September 20, 2016
    Assignee: AJINOMOTO CO., INC.
    Inventors: Fumi Shozui, Yoshinori Tajima, Keiichi Yokoyama
  • Publication number: 20160237215
    Abstract: Polyamide compounds obtained by reacting a compound represented by formula (1): with a compound represented by formula (2): where the variables are described herein exhibit excellent heat resistance.
    Type: Application
    Filed: April 22, 2016
    Publication date: August 18, 2016
    Applicant: Ajinomoto Co., Inc.
    Inventors: Ryotaro NAKAYA, Fumi OGATA, Takashi INEYAMA, Keiichi YOKOYAMA
  • Publication number: 20160024248
    Abstract: Polyester compounds obtained by reaction of a compound represented by formula (1): (defined herein) with a compound represented by formula (2): (defined herein) exhibit high thermal resistance.
    Type: Application
    Filed: October 1, 2015
    Publication date: January 28, 2016
    Applicant: Ajinomoto Co., Inc.
    Inventors: Fumi SHOZUI, Ryotaro NAKAYA, Takashi INEYAMA, Keiichi YOKOYAMA
  • Publication number: 20160024247
    Abstract: Polyester compounds obtained by reaction of a compound represented by formula (1): (defined herein) with a compound represented by formula (2): (defined herein) exhibit high thermal resistance.
    Type: Application
    Filed: October 1, 2015
    Publication date: January 28, 2016
    Applicant: Ajinomoto Co., Inc.
    Inventors: Fumi SHOZUI, Ryotaro NAKAYA, Takashi INEYAMA, Keiichi YOKOYAMA
  • Publication number: 20150290108
    Abstract: The problem of the present invention is to provide a protein hydrophilicity-increasing agent capable of effectively increasing water permeability of (swelling) hair, skin and the like while suppressing damages on the hair, skin and the like constituted of the protein. The present invention solves the problem by providing a protein hydrophilicity-increasing agent containing a protein-glutaminase, and a protein hydrophilicity-increasing agent containing both a protein-glutaminase and transglutaminase.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 15, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: KEIICHI YOKOYAMA, EIKO OSHIMURA, MASAYO DATE, YUKIKO UMEZAWA
  • Patent number: 9062291
    Abstract: A transglutaminase protein which is mutated to have improved heat resistance and/or pH stability. A mutation is introduced into WT transglutaminase at a cysteine residue capable of forming a disulfide bond (SS bond).
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: June 23, 2015
    Assignee: AJINOMOTO CO., INC.
    Inventors: Keiichi Yokoyama, Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi
  • Publication number: 20150079644
    Abstract: The present invention provides a method for conveniently and efficiently producing a 3-acetylamino-4-hydroxybenzoic acid-type compound that is a stable compound by a process using a microorganism. Specifically the present invention provides a microorganism having an ability to produce 3-amino-4-hydroxybenzoic acid, that is modified so as to increase an activity to form 3-amino-4-hydroxybenzoic acid from dihydroxyacetone phosphate and aspartate semialdehyde, wherein the microorganism is modified so as to increase an N-hydroxyarylamine O-acetyltransferase (NhoA) activity, as well as a method for producing the 3-acetylamino-4-hydroxybenzoic acid-type compound using such a microorganism.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 19, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: Fumi Shozui, Yoshinori Tajima, Keiichi Yokoyama
  • Patent number: 8962296
    Abstract: The present invention provides means useful for establishing an excellent isoprene monomer production system. Specifically, the present invention provides a polynucleotide of the following (a), (b), or (c): (a) a polynucleotide comprising (i) the nucleotide sequence represented by SEQ ID NO:1, or (ii) the nucleotide sequence consisting of the nucleotide residues at positions 133 to 1785 in the nucleotide sequence represented by SEQ ID NO:1; (b) a polynucleotide that comprises a nucleotide sequence having 90% or more identity to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; or (c) a polynucleotide that hybridizes under a stringent condition with a polynucleotide consisting of a nucleotide sequence complementary to the nucleotide sequence of (i) or (ii) above, and encodes a protein having an isoprene synthase activity; and the like.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 24, 2015
    Assignees: Bridgestone Corporation, Ajinomoto Co., Inc.
    Inventors: Yasuyuki Hayashi, Minako Harada, Saaya Takaoka, Yasuo Fukushima, Keiichi Yokoyama, Yosuke Nishio, Yoshinori Tajima, Yoko Mihara, Kunio Nakata