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).
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Publication number: 20240079687Abstract: Provided are a power generation method and a power generating element capable of obtaining an electromotive force by utilizing humidity variation in an environment and having excellent operation stability. An aqueous solution of an ionic compound having deliquescence is separated by an ion permeable membrane, electrodes are inserted into the aqueous solution on both sides of the ion permeable membrane, one is blocked from outside air and sealed, and the other is connected to the outside air, and a difference in ion concentration derived from the ionic compound in the aqueous solution is generated across the ion permeable membrane due to a change in humidity in the outside air to generate an electromotive force between the electrodes.Type: ApplicationFiled: October 13, 2021Publication date: March 7, 2024Applicant: National Institute of Advanced Industrial Science and TechnologyInventors: Yusuke Komazaki, Kenji Kanazawa, Taiki Nobeshima, Hirotada Hirama, Yuichi Watanabe, Sei Uemura
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Patent number: 11883789Abstract: A microwave heating method using a microwave, including: controlling a frequency of the microwave, to form a single-mode standing wave; disposing an object to be heated in a magnetic field region where a strength of a magnetic field formed by the single-mode standing wave is uniform and maximum; and heating the object to be heated by magnetic heat generation by magnetic loss caused by an action of the magnetic field of the magnetic field region, and/or induction heating by an induced current generated in the object to be heated due to the magnetic field of the magnetic field region.Type: GrantFiled: February 7, 2019Date of Patent: January 30, 2024Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Yuichi Watanabe, Sei Uemura, Masateru Nishioka, Masato Miyakawa, Takashi Nakamura
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Publication number: 20230112020Abstract: A Magnetic-field melting preform solder that melts by action of an AC magnetic field, wherein the preform solder includes a laminated structure made up of two or more layers, at least two layers constituting the laminated structure is made up of solder material, the at least two layers do not contain ferromagnetic material, each of the at least two layers includes a surface facing with each other, and the surfaces facing with each other are in contact with each other. A bonding method using the preform solder includes a providing the preform solder between an electrode on a substrate and an electrode of an electronic component, and bonding together the electrode on the substrate and the electrode of the electronic component by generating an AC magnetic field around the substrate and thereby melting the preform solder.Type: ApplicationFiled: November 18, 2020Publication date: April 13, 2023Applicants: SENJU METAL INDUSTRY CO., LTD., National Institute of Advanced Industrial Science and TechnologyInventors: Haruya SAKUMA, Kenichi TOMITSUKA, Hisahiko YOSHIDA, Kenji KANAZAWA, Sei UEMURA, Takashi NAKAMURA, Masateru NISHIOKA
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Publication number: 20230010195Abstract: A tape having an elongated shape includes a strength-reducing portion, a strength-maintaining portion, a and an opening prevention portion. The strength-reducing portion includes a first slit row and a second slit row parallel to the first slit row. Each slit row includes a plurality of slits and a plurality of non-slit portions that are portions in which the slits are not formed. The plurality of non-slit portions belonging to the first slit row and the plurality of non-slit portions belonging to the second slit row do not overlap each other in a transverse direction of the tape. The opening prevention portion closes ends of the plurality of slits. The strength-reducing portion and the strength-maintaining portion are aligned in the transverse direction of the tape.Type: ApplicationFiled: February 24, 2021Publication date: January 12, 2023Inventor: Sei Uemura
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Publication number: 20220402057Abstract: A magnetic-field melting solder that melts by the action of an AC magnetic field is provided. The magnetic-field melting solder includes solder material; and magnetic material composing of ferrite or Ni, a proportion of the magnetic material to the entire magnetic-field melting solder being 0.005% to 5% by weight. A joining method using the magnetic-field melting solder includes providing the magnetic-field melting solder between an electrode on a substrate and an electrode of an electronic component, and joining together the electrode on the substrate and the electrode of the electronic component by generating an AC magnetic field around the substrate and thereby melting the magnetic-field melting solder.Type: ApplicationFiled: November 18, 2020Publication date: December 22, 2022Applicants: SENJU METAL INDUSTRY CO., LTD., National Institute of Advanced Industrial Science and TechnologyInventors: Haruya SAKUMA, Kenichi TOMITSUKA, Hisahiko YOSHIDA, Kenji KANAZAWA, Sei UEMURA, Takashi NAKAMURA, Masateru NISHIOKA
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Publication number: 20220402058Abstract: A mounting wiring board, containing a base, an electrode portion disposed on the base, and a heat generation pattern disposed on the electrode portion and to be heated by a standing wave of a microwave, in which an occupation area of the heat generation pattern is smaller than an area of an upper surface of the electrode portion; an electronic device mounting board using the mounting wiring board; a method of mounting the electronic device; a microwave heating method, which contains heating an object to be heated provided via the heat generation pattern; and a microwave heating apparatus.Type: ApplicationFiled: November 10, 2020Publication date: December 22, 2022Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Kenji KANAZAWA, Sei UEMURA, Masateru NISHIOKA, Takashi NAKAMURA
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Publication number: 20220348795Abstract: A tape is provided having a long shape in which a bond portion is formed on at least one surface. The tape includes a first slit row including a plurality of slits formed intermittently along a longitudinal direction, and a second slit row including a plurality of slits formed intermittently along a longitudinal direction and parallel to the first slit row. A portion without having a slit formed in the first slit row is arranged so as not to overlap a portion without having a slit formed in the second slit row.Type: ApplicationFiled: April 9, 2020Publication date: November 3, 2022Inventors: Sei UEMURA, Kohji YOSHIDA
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Publication number: 20220128501Abstract: Provided are a stretchable humidity-sensitive composite material for a humidity sensor that can be applied to clothing as wearable device, and the humidity sensor. The humidity-sensitive composite material is characterized by containing a deliquescent inorganic compound in closed pores inside a base material made of a porous silicone resin. The humidity sensor is characterized in that a bulk made of a humidity-sensitive composite material containing a deliquescent inorganic compound in closed pores inside a base material made of a porous silicone resin is sandwiched between a pair of counter electrodes made of a moisture-permeable material.Type: ApplicationFiled: February 12, 2020Publication date: April 28, 2022Applicant: National Institute of Advanced Industrial Science and TechnologyInventors: Yusuke Komazaki, Sei Uemura
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Patent number: 11259408Abstract: A stretchable contractible wiring sheet includes: stretchable contractible first elastomer sheet; stretchable contractible second elastomer sheet facing and bonded on the first elastomer sheet, and lead that has a transverse section having any cross-sectional shape selected from circular shape, elliptical shape, and track shape, and is plastically deformed in wavy shape periodically curving along longer direction, the lead being interposed between the first elastomer sheet and the second elastomer sheet in a manner that height direction of waves in wavy shape is along in-plane direction of facing surfaces of the first elastomer sheet and second elastomer sheet. The wiring sheet that can be produced easily at low costs, has high flexibility and durability, and undergoes small resistance value change along with stretching and contracting, and stretchable contractible touch sensor sheet.Type: GrantFiled: January 5, 2017Date of Patent: February 22, 2022Assignee: TOKUSEN KOGYO CO., LTD.Inventors: Masato Yamashita, Shin Sumimoto, Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Publication number: 20210023526Abstract: A microwave heating method using a microwave, including: controlling a frequency of the microwave, to form a single-mode standing wave; disposing an object to be heated in a magnetic field region where a strength of a magnetic field formed by the single-mode standing wave is uniform and maximum; and heating the object to be heated by magnetic heat generation by magnetic loss caused by an action of the magnetic field of the magnetic field region, and/or induction heating by an induced current generated in the object to be heated due to the magnetic field of the magnetic field region.Type: ApplicationFiled: February 7, 2019Publication date: January 28, 2021Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Yuichi WATANABE, Sei UEMURA, Masateru NISHIOKA, Masato MIYAKAWA, Takashi NAKAMURA
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Publication number: 20200396832Abstract: A stretchable contractible wiring sheet includes: stretchable contractible first elastomer sheet; stretchable contractible second elastomer sheet facing and bonded on the first elastomer sheet, and lead that has a transverse section having any cross-sectional shape selected from circular shape, elliptical shape, and track shape, and is plastically deformed in wavy shape periodically curving along longer direction, the lead being interposed between the first elastomer sheet and the second elastomer sheet in a manner that height direction of waves in wavy shape is along in-plane direction of facing surfaces of the first elastomer sheet and second elastomer sheet. The wiring sheet that can be produced easily at low costs, has high flexibility and durability, and undergoes small resistance value change along with stretching and contracting, and stretchable contractible touch sensor sheet.Type: ApplicationFiled: January 5, 2017Publication date: December 17, 2020Applicant: Tokusen Kogyo Co., Ltd.Inventors: Masato Yamashita, Shin Sumimoto, Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Patent number: 10386248Abstract: 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: GrantFiled: May 14, 2015Date of Patent: August 20, 2019Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Publication number: 20190018511Abstract: [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: ApplicationFiled: December 8, 2016Publication date: January 17, 2019Applicant: Tokusen Kogyo Co., Ltd.Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima, Masato Yamashita, Shin Sumimoto
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Publication number: 20180033520Abstract: 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: ApplicationFiled: February 16, 2016Publication date: February 1, 2018Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Patent number: 9786450Abstract: 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: GrantFiled: May 7, 2015Date of Patent: October 10, 2017Assignee: AJINOMOTO CO., INC.Inventors: Yoshinori Wada, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
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Publication number: 20170153152Abstract: 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: ApplicationFiled: May 14, 2015Publication date: June 1, 2017Inventors: Manabu Yoshida, Sei Uemura, Taiki Nobeshima
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Patent number: 9464167Abstract: 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: GrantFiled: November 11, 2013Date of Patent: October 11, 2016Assignee: AJINOMOTO CO., INC.Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata
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Patent number: 9450174Abstract: 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: GrantFiled: August 13, 2014Date of Patent: September 20, 2016Assignee: AJINOMOTO CO., INC.Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada
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Publication number: 20150311012Abstract: 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: ApplicationFiled: May 7, 2015Publication date: October 29, 2015Applicant: AJINOMOTO CO., INC.Inventors: Yoshinori WADA, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
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Publication number: 20140368083Abstract: 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: ApplicationFiled: August 13, 2014Publication date: December 18, 2014Applicant: AJINOMOTO CO., INC.Inventors: Satoru OHASHI, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada