Patents by Inventor Sei Uemura

Sei Uemura 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: 10386248
    Abstract: A stretchable electrically-conductive sheet according to the present invention includes an elastomer sheet 1 having an adhesive layer corresponding to a wiring region with a predetermined pattern formed on a front surface of the elastomer sheet, and also includes electrically-conductive fiber materials 2 each having a predetermined diameter and a predetermined length. When the elastomer sheet 1 is stretched or bended, the electrically-conductive fiber materials relatively move maintaining mutual electrical continuity so as to maintain the electrical continuity in the wiring region. Accordingly, it is possible to achieve a low-cost stretchable electrically-conductive circuit having excellent stretchability, bendability, and durability.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 20, 2019
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
  • Publication number: 20190018511
    Abstract: [Problem] To provide a high-stretchability/contractibility stretchable contractible wiring sheet that can be produced easily at low costs, has high flexibility, high durability, and high conformity to external force, and undergoes small resistance value change along with stretching and contracting and a producing method and apparatus for the same, and a stretchable contractible touch sensor sheet. [Solution] A stretchable contractible wiring sheet of the present invention includes: a stretchable contractible first elastomer sheet 1a; a stretchable contractible second elastomer sheet 1b facing and bonded on the first elastomer sheet 1a; and a lead 2 interposed between the first elastomer sheet 1a and the second elastomer sheet 1b in a state of having a wavy shape periodically curving in-plane in facing surfaces of the first elastomer sheet 1a and the second elastomer sheet 1b and being biased in a direction to restore to a rod-like shape from the wavy shape during unloading.
    Type: Application
    Filed: December 8, 2016
    Publication date: January 17, 2019
    Applicant: Tokusen Kogyo Co., Ltd.
    Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima, Masato Yamashita, Shin Sumimoto
  • Publication number: 20180033520
    Abstract: Conductor wires 2a and 2b are sandwiched between two elastomer sheets 1a and 1b whose adhesive layers face each other, and both adhere. When the elastomer sheets 1a and 1b are their natural lengths without being subjected to any tension, the conducting wires 2a and 2b are wound around into spiral shapes and contract. When tension is applied to the elastomer sheets 1a and 1b, the number of spiral turns of the conductor wires 2a and 2b decreases according to its extension and the conductor wires 2a and 2b extend. The conductor wires 2a and 2b are electrically connected to and fixed to a circuit element at both ends of the elastomer sheets 1a and 1b. As a result, it is possible to mass-produce, at low costs, highly stretchable wirings in which a change in resistance values due to extension thereof is small.
    Type: Application
    Filed: February 16, 2016
    Publication date: February 1, 2018
    Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
  • Patent number: 9786450
    Abstract: A membrane switch in which a first conductive part is formed on a first substrate, a second conductive part is formed on a second substrate, and the substrates are layered via a spacer such that the conductive parts face each other with a space therebetween, and an organic material showing piezoelectricity is filled, or disposed in the space such that an air gap is present, are useful for obtaining an output signal corresponding to an applied pressure.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: October 10, 2017
    Assignee: AJINOMOTO CO., INC.
    Inventors: Yoshinori Wada, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
  • Publication number: 20170153152
    Abstract: A stretchable electrically-conductive sheet according to the present invention includes an elastomer sheet 1 having an adhesive layer corresponding to a wiring region with a predetermined pattern formed on a front surface of the elastomer sheet, and also includes electrically-conductive fiber materials 2 each having a predetermined diameter and a predetermined length. When the elastomer sheet 1 is stretched or bended, the electrically-conductive fiber materials relatively move maintaining mutual electrical continuity so as to maintain the electrical continuity in the wiring region. Accordingly, it is possible to achieve a low-cost stretchable electrically-conductive circuit having excellent stretchability, bendability, and durability.
    Type: Application
    Filed: May 14, 2015
    Publication date: June 1, 2017
    Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
  • Patent number: 9464167
    Abstract: Ferroelectric memory elements which contain a poly ?-amino acid which is a copolymer containing a glutamic acid-?-ester unit represented by the formula (I), defined herein, and a glutamic acid-?-ester unit represented by the formula (II), defined herein, in a molar ratio of units of formula (I) to units of formula (II) of 10/90-90/10 are useful as recording elements such as RFID and the like.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: October 11, 2016
    Assignee: AJINOMOTO CO., INC.
    Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata
  • Patent number: 9450174
    Abstract: Poly(?-amino acid) which contain: (A) a glutamic acid ?-ester unit represented by formula (I): and (B) one or more kinds of units selected from a glutamic acid ?-ester unit represented by formula (II), an alanine unit, a phenylalanine unit and an N?-benzyloxycarbonyllysine unit, represented by formula (III), and a glutamic acid ?-ester unit represented by formula (IV) can be dissolved in various solvents and are useful for preparing piezoelectric elements which exhibit superior piezoelectricity.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: September 20, 2016
    Assignee: AJINOMOTO CO., INC.
    Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada
  • Publication number: 20150311012
    Abstract: A membrane switch in which a first conductive part is formed on a first substrate, a second conductive part is formed on a second substrate, and the substrates are layered via a spacer such that the conductive parts face each other with a space therebetween, and an organic material showing piezoelectricity is filled, or disposed in the space such that an air gap is present, are useful for obtaining an output signal corresponding to an applied pressure.
    Type: Application
    Filed: May 7, 2015
    Publication date: October 29, 2015
    Applicant: AJINOMOTO CO., INC.
    Inventors: Yoshinori WADA, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
  • Publication number: 20140368083
    Abstract: Poly(?-amino acid) which contain: (A) a glutamic acid ?-ester unit represented by formula (I): and (B) one or more kinds of units selected from a glutamic acid ?-ester unit represented by formula (II), an alanine unit, a phenylalanine unit and an N?-benzyloxycarbonyllysine unit, represented by formula (III), and a glutamic acid ?-ester unit represented by formula (IV) can be dissolved in various solvents and are useful for preparing piezoelectric elements which exhibit superior piezoelectricity.
    Type: Application
    Filed: August 13, 2014
    Publication date: December 18, 2014
    Applicant: AJINOMOTO CO., INC.
    Inventors: Satoru OHASHI, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada
  • Publication number: 20140138654
    Abstract: Ferroelectric memory elements which contain a poly ?-amino acid which is a copolymer containing a glutamic acid-?-ester unit represented by the formula (I), defined herein, and a glutamic acid-?-ester unit represented by the formula (II), defined herein, in a molar ratio of units of formula (I) to units of formula (II) of 10/90-90/10 are useful as recording elements such as RFID and the like.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 22, 2014
    Applicant: Ajinomoto Co., Inc.
    Inventors: Satoru OHASHI, Sei UEMURA, Manabu KITAZAWA, Toshihide KAMATA
  • Patent number: 8673070
    Abstract: Disclosed is a process for producing a silicon oxide or silicon oxynitride thin film having a high level of water vapor and oxygen barrier property and a high strength with a higher efficiency by a solution process which is advantageous in productivity. Also disclosed is a thin film that is obtained by the process and is useful, for example, as a protective film for electric elements such as organic EL elements. A solution containing a smectite group silicate layered compound and a silazane compound is coated onto a surface of a substrate by a liquid phase process to form a film. The thin film thus obtained is exposed to ultraviolet light under an oxygen atmosphere to produce a silicon oxide thin film or a silicon oxynitride compound thin film containing the smectite group silicate layered compound. The smectite group silicate compound is a material represented by the following general formula. A1/3BmSi4O10.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: March 18, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Sei Uemura, Toshihide Kamata
  • Publication number: 20110185948
    Abstract: Disclosed is a process for producing a silicon oxide or silicon oxynitride thin film having a high level of water vapor and oxygen barrier property and a high strength with a higher efficiency by a solution process which is advantageous in productivity. Also disclosed is a thin film that is obtained by the process and is useful, for example, as a protective film for electric elements such as organic EL elements. A solution containing a smectite group silicate layered compound and a silazane compound is coated onto a surface of a substrate by a liquid phase process to form a film. The thin film thus obtained is exposed to ultraviolet light under an oxygen atmosphere to produce a silicon oxide thin film or a silicon oxynitride compound thin film containing the smectite group silicate layered compound. The smectite group silicate compound is a material represented by the following general formula. A1/3BmSi4O10.
    Type: Application
    Filed: August 28, 2009
    Publication date: August 4, 2011
    Inventors: Sei Uemura, Toshihide Kamata