Patents by Inventor Tomoko Seko

Tomoko Seko 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: 10914707
    Abstract: A reference electrode according to the present invention maintains continuity between an internal solution and measurement sample and measures the electrical potential of the measurement sample even if the measurement sample in a liquid junction of the reference electrode has air bubbles mixed therein. This reference electrode is provided with: a second body provided with a second internal solution chamber in which a second internal solution is housed and a liquid junction portion disposed in the second internal solution chamber such that the second internal solution and measurement sample that is to be measured come into contact; and an internal electrode disposed inside the second internal solution. The liquid junction portion is formed from a conduction component formed from a porous or fibrous component and an aperture adjacent to the conduction component.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 9, 2021
    Assignee: HORIBA, Ltd.
    Inventors: Kazuhiro Miyamura, Yoko Nakai, Yoshihiro Mori, Yoshito Komada, Kimihiko Arimoto, Yuiji Tsujioka, Tomoko Seko, Hiroki Minowa
  • Patent number: 10831133
    Abstract: An endless belt includes a first resin and first conductive carbon particles. In the spatial distribution of the first conductive carbon particles present in an evaluation region of the outer peripheral surface of the endless belt which has a size of 6.3 ?m×4.2 ?m, the integral of the statistic L(r) represented by Formula (1) below from 0.05 ?m to 0.30 ?m with respect to an interparticle distance r is 0 or more and 0.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 10, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoya Sugiura, Shigeru Fukuda, Futoshi Takei, Daisuke Tanemura, Masato Ono, Masato Furukawa, Hiroaki Tanaka, Shogo Hayashi, Tomoko Suzuki, Masayuki Seko, Koichi Matsumoto, Minoru Rokutan
  • Publication number: 20200333248
    Abstract: The present invention intends to enable light path length to be kept the same between sample measurement and reference measurement and thereby improve measurement accuracy, and is an optical analyzer that analyzes a sample flowing through a pipe having translucency. In addition, the optical analyzer includes: a light source unit that has a light source and a condenser lens; a light detection unit that detects light of the light source unit; and a support mechanism that movably supports the light source unit and the light detection unit. Further, the support mechanism moves the light source unit and the light detection unit between a sample measurement position and a reference measurement position.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 22, 2020
    Applicant: HORIBA Advanced Techno, Co., Ltd.
    Inventors: Takuya ONODA, Issei YOKOYAMA, Tomoko SEKO
  • Patent number: 10718705
    Abstract: An optical measurement cell including first and second translucent members, which sandwich an internal space storing test liquid, are configured so that light incident on the first translucent member passes through the internal space and is emitted from the second translucent member. The cell includes a first holding member that holds down the circumference of a light transmission area on an outward surface of the first translucent member; a second holding member that holds down the circumference of a light transmission area on an outward surface of the second translucent member; and seal members that are respectively interposed between the first translucent and holding members and between the second translucent and holding members. In addition, areas excluding parts of surfaces of the respective translucent members are coated with coated films, and the end parts of the coated films are positioned on light transmission area sides of the seal members.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 21, 2020
    Assignee: HORIBA ADVANCED TECHNO, CO., LTD.
    Inventors: Tatsuya Nakahara, Tomoko Seko
  • Publication number: 20190271637
    Abstract: An optical measurement cell including first and second translucent members, which sandwich an internal space storing test liquid, are configured so that light incident on the first translucent member passes through the internal space and is emitted from the second translucent member. The cell includes a first holding member that holds down the circumference of a light transmission area on an outward surface of the first translucent member; a second holding member that holds down the circumference of a light transmission area on an outward surface of the second translucent member; and seal members that are respectively interposed between the first translucent and holding members and between the second translucent and holding members. In addition, areas excluding parts of surfaces of the respective translucent members are coated with coated films, and the end parts of the coated films are positioned on light transmission area sides of the seal members.
    Type: Application
    Filed: February 21, 2019
    Publication date: September 5, 2019
    Inventors: Tatsuya Nakahara, Tomoko Seko
  • Publication number: 20180003626
    Abstract: In order to provide a gas concentration measurement apparatus that suppresses any change in the temperature of an optical fiber, and also makes it difficult for any effects to appear in the measurement accuracy due to air from the surrounding environment penetrating the optical path of the measurement light while using only a simple structure and without causing any excessive energy consumption there are provided a first sealing component provided between an incident surface of a gas cell and a first end surface that is formed at a periphery of an emission aperture of a light-emitting unit so as to enclose the periphery of the emission aperture, and a second sealing component provided between an emission surface of the gas cell and a second end surface that is formed at a periphery of an incident aperture of a light-receiving unit so as to enclose the periphery of the incident aperture.
    Type: Application
    Filed: June 7, 2017
    Publication date: January 4, 2018
    Applicant: HORIBA, LTD.
    Inventors: Kimihiko ARIMOTO, Issei YOKOYAMA, Tomoko SEKO, Yutaro TSUCHISAKA, Daisuke KITAKI, Yasuo FURUKAWA
  • Publication number: 20170191960
    Abstract: A reference electrode according to the present invention maintains continuity between an internal solution and measurement sample and measures the electrical potential of the measurement sample even if the measurement sample in a liquid junction of the reference electrode has air bubbles mixed therein. This reference electrode is provided with: a second body provided with a second internal solution chamber in which a second internal solution is housed and a liquid junction portion disposed in the second internal solution chamber such that the second internal solution and measurement sample that is to be measured come into contact; and an internal electrode disposed inside the second internal solution. The liquid junction portion is formed from a conduction component formed from a porous or fibrous component and an aperture adjacent to the conduction component.
    Type: Application
    Filed: June 19, 2015
    Publication date: July 6, 2017
    Inventors: Kazuhiro Miyamura, Yoko Nakai, Yoshihiro Mori, Yoshito Komada, Kimihiko Arimoto, Yuiji Tsujioka, Tomoko Seko, Hiroki Minowa
  • Patent number: 8302459
    Abstract: The measurement sensitivity is improved by suppressing the surrounding temperature influence as much as possible, while realizing scale reduction, and by enlarging the detection signal, while reducing the production errors in enclosing a reference gas. Provided is a thermal conductivity sensor that detects thermal conductivity of a sample gas by using a Wheatstone Bridge circuit constructed in such a manner that measurement resistors that are brought into contact with the sample gas are disposed on a first side, and reference resistors that are brought into contact with a reference gas are disposed on a second side, and comparing the potential difference between connection points of the reference resistors and the measurement resistors. The measurement resistors disposed on the first side are assembled in one measurement space, and the reference resistors disposed on the second side are assembled in one reference space.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 6, 2012
    Assignee: HORIBA, Ltd.
    Inventors: Makoto Matsuhama, Tomoko Seko, Shuji Takada, Hiroshi Mizutani, Takuji Oida, Masahiko Endo, Takuya Ido
  • Publication number: 20100242573
    Abstract: The measurement sensitivity is improved by suppressing the surrounding temperature influence as much as possible, while realizing scale reduction, and by enlarging the detection signal, while reducing the production errors in enclosing a reference gas. Provided is a thermal conductivity sensor that detects thermal conductivity of a sample gas by using a Wheatstone Bridge circuit constructed in such a manner that measurement resistors that are brought into contact with the sample gas are disposed on a first side, and reference resistors that are brought into contact with a reference gas are disposed on a second side, and comparing the potential difference between connection points of the reference resistors and the measurement resistors. The measurement resistors disposed on the first side are assembled in one measurement space, and the reference resistors disposed on the second side are assembled in one reference space.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 30, 2010
    Applicant: HORIBA LTD.
    Inventors: Makoto Matsuhama, Tomoko Seko, Shuji Takada, Hiroshi Mizutani, Takuji Oida, Masahiko Endo, Takuya Ido