Patents by Inventor Yoshinori Sekoguchi

Yoshinori Sekoguchi 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: 10109449
    Abstract: Each of first to fourth needle-like electrodes is arranged such that a direction of extension thereof is parallel, and generates ions by discharge. Through a space, a gas for conveying the ions generated by the first to fourth needle-like electrodes flows. Needle tips of the first needle-like electrode and the second needle-like electrode protrude from a first wall surface that forms the space, are spaced apart from each other, and are arranged in line in the space. Needle tips of the third needle-like electrode and the fourth needle-like electrode protrude from a second wall surface that forms the space and faces the first wall surface, are spaced apart from each other, and are arranged in line in the space. The first needle-like electrode and the fourth needle-like electrode generate positive ions, and the second needle-like electrode and the third needle-like electrode generate negative ions.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 23, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Ezaki, Yoshinori Sekoguchi, Satohiko Yamamoto, Tomoaki Takado, Keitaro Yamada, Satoshi Okano
  • Patent number: 9985420
    Abstract: A discharge device capable of maintaining a stable discharge performance even in a highly humid environment or an atmospheric environment containing salt includes a discharge electrode discharging when a voltage is applied thereto, a substrate supporting the discharge electrode, an induction electrode arranged apart from the discharge electrode, and an insulator enclosing all of the substrate and the induction electrode. The discharge electrode has a root portion supported by the substrate, a pointed end protruding from a surface of the insulator, and a taper portion tapering from the root portion toward the pointed end. An outer peripheral surface of the root portion is made of a material having an ionization tendency lower than that of hydrogen.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 29, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Sekoguchi, Nobuyuki Ohe, Hiromu Nishida, Koichi Izu, Minako Taniguchi, Keitaro Yamada
  • Patent number: 9922792
    Abstract: A housing, a substrate accommodated in the housing, a needle electrode for generating ions through discharging, which is held by the substrate such that a tip end portion protrudes outside the housing, an insulating sealing portion insulating and sealing the substrate in the housing, and an electrode protection portion for protecting the needle electrode outside the housing are included. The housing is provided with an opening portion through which a side of the tip end portion of the needle electrode is inserted and which is sealed with the insulating sealing portion. The electrode protection portion has a first protection portion and a second protection portion which are provided to protrude from the housing relative to the tip end portion of the needle electrode and opposed to each other at a distance from each other on opposing sides of the needle electrode.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 20, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiromu Nishida, Koichi Izu, Nobuyuki Ohe, Yoshinori Sekoguchi
  • Publication number: 20180053620
    Abstract: An ion generating device (1) includes: a discharge electrode (21,22), protruding from a surface of the ion generating device, for generating ions by electric discharge, the discharge electrode having (i) a tip part (31) including a brush-like electrically conductive member and (ii) a base end part (33) to which the brush-like electrically conductive member is attached, and the base end part protruding from the surface of the ion generating device for a length (L2) that is longer than a length (L1) of the tip part.
    Type: Application
    Filed: February 9, 2016
    Publication date: February 22, 2018
    Inventors: HIROMU NISHIDA, YOSHINORI SEKOGUCHI
  • Publication number: 20170316910
    Abstract: A housing, a substrate accommodated in the housing, a needle electrode for generating ions through discharging, which is held by the substrate such that a tip end portion protrudes outside the housing, an insulating sealing portion insulating and sealing the substrate in the housing, and an electrode protection portion for protecting the needle electrode outside the housing are included. The housing is provided with an opening portion through which a side of the tip end portion of the needle electrode is inserted and which is sealed with the insulating sealing portion. The electrode protection portion has a first protection portion and a second protection portion which are provided to protrude from the housing relative to the tip end portion of the needle electrode and opposed to each other at a distance from each other on opposing sides of the needle electrode.
    Type: Application
    Filed: July 19, 2017
    Publication date: November 2, 2017
    Inventors: Hiromu NISHIDA, Koichi IZU, Nobuyuki OHE, Yoshinori SEKOGUCHI
  • Patent number: 9754757
    Abstract: A housing, a substrate accommodated in the housing, a needle electrode for generating ions through discharging, which is held by the substrate such that a tip end portion protrudes outside the housing, an insulating sealing portion insulating and sealing the substrate in the housing, and an electrode protection portion for protecting the needle electrode outside the housing are included. The housing is provided with an opening portion through which a side of the tip end portion of the needle electrode is inserted and which is sealed with the insulating sealing portion. The electrode protection portion has a first protection portion and a second protection portion which are provided to protrude from the housing relative to the tip end portion of the needle electrode and opposed to each other at a distance from each other on opposing sides of the needle electrode.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 5, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiromu Nishida, Koichi Izu, Nobuyuki Ohe, Yoshinori Sekoguchi
  • Publication number: 20170221668
    Abstract: Each of first to fourth needle-like electrodes is arranged such that a direction of extension thereof is parallel, and generates ions by discharge. Through a space, a gas for conveying the ions generated by the first to fourth needle-like electrodes flows. Needle tips of the first needle-like electrode and the second needle-like electrode protrude from a first wall surface that forms the space, are spaced apart from each other, and are arranged in line in the space. Needle tips of the third needle-like electrode and the fourth needle-like electrode protrude from a second wall surface that forms the space and faces the first wall surface, are spaced apart from each other, and are arranged in line in the space. The first needle-like electrode and the fourth needle-like electrode generate positive ions, and the second needle-like electrode and the third needle-like electrode generate negative ions.
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Inventors: Tetsuya EZAKI, Yoshinori SEKOGUCHI, Satohiko YAMAMOTO, Tomoaki TAKADO, Keitaro YAMADA, Satoshi OKANO
  • Patent number: 9666402
    Abstract: Each of first to fourth needle-like electrodes is arranged such that a direction of extension thereof is parallel, and generates ions by discharge. Through a space, a gas for conveying the ions generated by the first to fourth needle-like electrodes flows. Needle tips of the first needle-like electrode and the second needle-like electrode protrude from a first wall surface that forms the space, are spaced apart from each other, and are arranged in line in the space. Needle tips of the third needle-like electrode and the fourth needle-like electrode protrude from a second wall surface that forms the space and faces the first wall surface, are spaced apart from each other, and are arranged in line in the space. The first needle-like electrode and the fourth needle-like electrode generate positive ions, and the second needle-like electrode and the third needle-like electrode generate negative ions.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: May 30, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Ezaki, Yoshinori Sekoguchi, Satohiko Yamamoto, Tomoaki Takado, Keitaro Yamada, Satoshi Okano
  • Publication number: 20160211654
    Abstract: A discharge device capable of maintaining a stable discharge performance even in a highly humid environment or an atmospheric environment containing salt includes a discharge electrode discharging when a voltage is applied thereto, a substrate supporting the discharge electrode, an induction electrode arranged apart from the discharge electrode, and an insulator enclosing all of the substrate and the induction electrode. The discharge electrode has a root portion supported by the substrate, a pointed end protruding from a surface of the insulator, and a taper portion tapering from the root portion toward the pointed end. An outer peripheral surface of the root portion is made of a material having an ionization tendency lower than that of hydrogen.
    Type: Application
    Filed: September 17, 2014
    Publication date: July 21, 2016
    Inventors: Yoshinori SEKOGUCHI, Nobuyuki OHE, Hiromu NISHIDA, Koichi IZU, Minako TANIGUCHI, Keitaro YAMADA
  • Publication number: 20160104595
    Abstract: A housing, a substrate accommodated in the housing, a needle electrode for generating ions through discharging, which is held by the substrate such that a tip end portion protrudes outside the housing, an insulating sealing portion insulating and sealing the substrate in the housing, and an electrode protection portion for protecting the needle electrode outside the housing are included. The housing is provided with an opening portion through which a side of the tip end portion of the needle electrode is inserted and which is sealed with the insulating sealing portion. The electrode protection portion has a first protection portion and a second protection portion which are provided to protrude from the housing relative to the tip end portion of the needle electrode and opposed to each other at a distance from each other on opposing sides of the needle electrode.
    Type: Application
    Filed: February 27, 2014
    Publication date: April 14, 2016
    Inventors: Hiromu NISHIDA, Koichi IZU, Nobuyuki OHE, Yoshinori SEKOGUCHI
  • Patent number: 9142378
    Abstract: An arrangement area of a transformer drive circuit, an arrangement area of a high-voltage transformer, and an arrangement area of an ion generating unit are two-dimensionally divided from each other in a casing. A connection terminal is electrically connected to the transformer drive circuit and is formed of a conductive film arranged to be exposed to the outside of the casing. Accordingly, an ion generating device whose size and thickness can be easily reduced and an electrical apparatus including the ion generating device can be provided.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 22, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Sekoguchi, Minako Sugano, Yasuhiro Iwashita
  • Publication number: 20150248989
    Abstract: Each of first to fourth needle-like electrodes is arranged such that a direction of extension thereof is parallel, and generates ions by discharge. Through a space, a gas for conveying the ions generated by the first to fourth needle-like electrodes flows. Needle tips of the first needle-like electrode and the second needle-like electrode protrude from a first wall surface that forms the space, are spaced apart from each other, and are arranged in line in the space. Needle tips of the third needle-like electrode and the fourth needle-like electrode protrude from a second wall surface that forms the space and faces the first wall surface, are spaced apart from each other, and are arranged in line in the space. The first needle-like electrode and the fourth needle-like electrode generate positive ions, and the second needle-like electrode and the third needle-like electrode generate negative ions.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 3, 2015
    Inventors: Tetsuya Ezaki, Yoshinori Sekoguchi, Satohiko Yamamoto, Tomoaki Takado, Keitaro Yamada, Satoshi Okano
  • Patent number: 8773838
    Abstract: An ion generating device generates O2?(H2O)n (where n is a natural number) as negative ions and H+(H2O)m (where m is a natural number) as positive ions, and discharges those ions into the air so that airborne germs are killed through an oxidation reaction by hydrogen peroxide H2O2 or radical hydroxyl OH generated through as an active species a chemical reaction between the negative and positive ions. Satisfactory sterilization is achieved when the negative and positive ions are generated in such a way that the concentrations of the negative and positive ions are both 10,000 ion/cc at a distance of 10 cm from the point at which they are generated.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: July 8, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasukata Takeda, Yoshinori Sekoguchi, Takeshi Furukawa, Mamoru Morikawa, Toshiaki Takano, Katsutoshi Noguchi, Hideo Nojima, Kazuo Nishikawa, Akio Miyata
  • Patent number: 8624476
    Abstract: An ion-generating device includes a discharge electrode and an induction electrode. The discharge electrode has a needle-like tip. The induction electrode has a circular through hole. The tip of the discharge electrode penetrates the through hole of the induction electrode, and protrudes upward with respect to an upper surface of the induction electrode. It is thereby possible to obtain an ion-generating device capable of improving ion emission efficiency, and an electrical apparatus provided with the ion-generating device.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: January 7, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshinori Sekoguchi
  • Patent number: 8576535
    Abstract: An ion-generating device has a positive electrode pair and a negative electrode pair. The positive electrode pair and the negative electrode pair are disposed in a casing with a space interposed therebetween, such that an induction electrode in the positive electrode pair and an induction electrode in the negative electrode pair are separated from each other. It is thereby possible to obtain an ion-generating device and an electrical apparatus, capable of efficiently emitting both of positive ions and negative ions to an outside of the device, and easily achieving reduction in size and thickness.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshinori Sekoguchi
  • Publication number: 20130146781
    Abstract: An arrangement area of a transformer drive circuit, an arrangement area of a high-voltage transformer, and an arrangement area of an ion generating unit are two-dimensionally divided from each other in a casing. A connection terminal is electrically connected to the transformer drive circuit and is formed of a conductive film arranged to be exposed to the outside of the casing. Accordingly, an ion generating device whose size and thickness can be easily reduced and an electrical apparatus including the ion generating device can be provided.
    Type: Application
    Filed: July 12, 2011
    Publication date: June 13, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshinori Sekoguchi, Minako Sugano, Yasuhiro Iwashita
  • Publication number: 20120314333
    Abstract: An ion generating device generates O2?(H2O)n (where n is a natural number) as negative ions and H+(H2O)m (where m is a natural number) as positive ions, and discharges those ions into the air so that airborne germs are killed through an oxidation reaction by hydrogen peroxide H2O2 or radical hydroxyl OH generated through as an active species a chemical reaction between the negative and positive ions. Satisfactory sterilization is achieved when the negative and positive ions are generated in such a way that the concentrations of the negative and positive ions are both 10,000 ion/cc at a distance of 10 cm from the point at which they are generated.
    Type: Application
    Filed: August 21, 2012
    Publication date: December 13, 2012
    Inventors: Yasukata Takeda, Yoshinori Sekoguchi, Takeshi Furukawa, Mamoru Morikawa, Toshiaki Takano, Katsutoshi Noguchi, Hideo Nojima, Kazuo Nishikawa, Akio Miyata
  • Patent number: 8053741
    Abstract: An outer casing is partitioned, in a plan view, into a high-voltage transformer drive circuit block for disposing at least a high-voltage transformer drive circuit, a high-voltage transformer block for disposing at least a secondary side of a high-voltage transformer, and an ion-generating element block for disposing an ion-generating element. It is thereby possible to obtain an ion-generating device suitable for reduction in size and thickness, and an electrical apparatus mounted with the same.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: November 8, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshinori Sekoguchi
  • Patent number: 8049170
    Abstract: An ion generation element includes an induction electrode and a plurality of discharge electrodes. The induction electrode is formed of one metal plate. A circumferential portion of a through hole is bent, and a thickness of a wall portion of the through hole is greater than a thickness of a top plate portion. A needle-like tip end of the discharge electrode is located within a range of the thickness of the through hole. Thus, an induction electrode having a structure realizing a small thickness, capable of lessening variation in an amount of ion generation caused by variation in positional relation between the tip end of the discharge electrode and the induction electrode, an ion generation element, an ion generation apparatus, and electric equipment can be obtained.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: November 1, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Sekoguchi, Yasuhiro Iwashita
  • Patent number: 7961451
    Abstract: An ion generating element includes a positive ion discharger for generating positive ions and a negative ion discharger for generating negative ions. The ion dischargers are arranged separately from and independently of each other with a distance securing insulation between them. At least one of the dischargers includes a discharging portion for causing electric discharge, and a conducting portion having a voltage same as the discharging portion. The conducting portion surrounds a perimeter or part of the discharging portion. The conducting portion may surround a perimeter or part of the discharging portion so as to partition the ion dischargers from each other.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: June 14, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinori Sekoguchi, Ichiro Tokai, Hiromu Nishida, Satoshi Takahashi