Patents by Inventor Hiromu Nishida
Hiromu Nishida 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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Patent number: 10910186Abstract: 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: GrantFiled: February 9, 2016Date of Patent: February 2, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Yoshinori Sekoguchi
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Patent number: 10748733Abstract: The present invention has an object to reduce a risk of performance degradation caused to an ion generating device that is being manufactured. An ion generating device (1) includes: a discharge electrode (21) for generating ions by electric discharge, the discharge electrode having (i) a mounting part (33a) for mounting the discharge electrode on the ion generating device and (ii) a brush part including a plurality of linear electrically conductive members, and the mounting part (33a) binding a base end part of the brush part so as to hold the base end part, the ion generating device further including: an insulating sealing member (41) with which to seal the base end part of the mounting part (33a); and a protective resin (29) with which to cover at least a brush base end surface (25t).Type: GrantFiled: February 9, 2016Date of Patent: August 18, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Satoshi Okano, Nobuyuki Ohe, Mitsuyoshi Yamashita
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Patent number: 10320160Abstract: An ion generation apparatus that can facilitate the separation of adhering materials from a discharge electrode and efficiently generate ions includes an induction electrode, and a discharge electrode for generating ions between the discharge electrode and the induction electrode. The discharge electrode has a plurality of filament-like conductors, and a joining portion to tie the bottoms of the conductors together. The induction electrode is arranged at the bottom side of the conductors.Type: GrantFiled: August 27, 2014Date of Patent: June 11, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Nobuyuki Ohe, Koichi Izu
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Patent number: 10096977Abstract: In an ion generation apparatus, induction electrodes are formed on a surface of a substrate, holes are provided inside the induction electrodes, respectively, needle electrodes are disposed in a substrate, and tip end portions of the needle electrodes are inserted into the holes, respectively. Furthermore, a part of each of the induction electrodes is removed, thereby reducing the size of the substrate for entire size reduction. By such a configuration, it becomes possible to provide an ion generation apparatus that can stably generate ions even in a high humidity environment and that can be mounted also in small-sized electrical equipment.Type: GrantFiled: August 26, 2014Date of Patent: October 9, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Koichi Izu, Nobuyuki Ohe
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Patent number: 9985420Abstract: 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: GrantFiled: September 17, 2014Date of Patent: May 29, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshinori Sekoguchi, Nobuyuki Ohe, Hiromu Nishida, Koichi Izu, Minako Taniguchi, Keitaro Yamada
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Patent number: 9922792Abstract: 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: GrantFiled: July 19, 2017Date of Patent: March 20, 2018Assignee: Sharp Kabushiki KaishaInventors: Hiromu Nishida, Koichi Izu, Nobuyuki Ohe, Yoshinori Sekoguchi
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Publication number: 20180053620Abstract: 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: ApplicationFiled: February 9, 2016Publication date: February 22, 2018Inventors: HIROMU NISHIDA, YOSHINORI SEKOGUCHI
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Publication number: 20180053621Abstract: The present invention has an object to reduce a risk of performance degradation caused to an ion generating device that is being manufactured. An ion generating device (1) includes: a discharge electrode (21) for generating ions by electric discharge, the discharge electrode having (i) a mounting part (33a) for mounting the discharge electrode on the ion generating device and (ii) a brush part including a plurality of linear electrically conductive members, and the mounting part (33a) binding a base end part of the brush part so as to hold the base end part, the ion generating device further including: an insulating sealing member (41) with which to seal the base end part of the mounting part (33a); and a protective resin (29) with which to cover at least a brush base end surface (25t).Type: ApplicationFiled: February 9, 2016Publication date: February 22, 2018Inventors: HIROMU NISHIDA, SATOSHI OKANO, NOBUYUKI OHE, MITSUYOSHI YAMASHITA
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Publication number: 20170316910Abstract: 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: ApplicationFiled: July 19, 2017Publication date: November 2, 2017Inventors: Hiromu NISHIDA, Koichi IZU, Nobuyuki OHE, Yoshinori SEKOGUCHI
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Patent number: 9754757Abstract: 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: GrantFiled: February 27, 2014Date of Patent: September 5, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Koichi Izu, Nobuyuki Ohe, Yoshinori Sekoguchi
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Patent number: 9514909Abstract: In this ion generation apparatus, tip end portions of needle electrodes are aligned in an X direction with being oriented in a Z direction, and protrude from a casing. A protective cover covers the tip end portions of the needle electrodes. The protective cover is provided with holes opened to allow tip ends of the needle electrodes to be seen from the Z direction, and an opening opened to allow the needle electrodes to be seen from a Y direction. Therefore, ions generated at the tip end portions of the needle electrodes can be emitted efficiently out of the casing. Further, a user can be prevented from touching the tip end portion of the needle electrode and injuring his or her finger or the like.Type: GrantFiled: April 18, 2012Date of Patent: December 6, 2016Assignee: Sharp Kabushiki KaishaInventors: Hiromu Nishida, Koichi Izu
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Publication number: 20160218490Abstract: In an ion generation apparatus, induction electrodes are formed on a surface of a substrate, holes are provided inside the induction electrodes, respectively, needle electrodes are disposed in a substrate, and tip end portions of the needle electrodes are inserted into the holes, respectively. Furthermore, a part of each of the induction electrodes is removed, thereby reducing the size of the substrate for entire size reduction. By such a configuration, it becomes possible to provide an ion generation apparatus that can stably generate ions even in a high humidity environment and that can be mounted also in small-sized electrical equipment.Type: ApplicationFiled: August 26, 2014Publication date: July 28, 2016Inventors: Hiromu NISHIDA, Koichi IZU, Nobuyuki OHE
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Publication number: 20160211654Abstract: 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: ApplicationFiled: September 17, 2014Publication date: July 21, 2016Inventors: Yoshinori SEKOGUCHI, Nobuyuki OHE, Hiromu NISHIDA, Koichi IZU, Minako TANIGUCHI, Keitaro YAMADA
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Publication number: 20160204581Abstract: An ion generation apparatus that can facilitate the separation of adhering materials from a discharge electrode and efficiently generate ions includes an induction electrode, and a discharge electrode for generating ions between the discharge electrode and the induction electrode. The discharge electrode has a plurality of filament-like conductors, and a joining portion to tie the bottoms of the conductors together. The induction electrode is arranged at the bottom side of the conductors.Type: ApplicationFiled: August 27, 2014Publication date: July 14, 2016Inventors: Hiromu NISHIDA, Nobuyuki OHE, Koichi IZU
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Publication number: 20160104595Abstract: 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: ApplicationFiled: February 27, 2014Publication date: April 14, 2016Inventors: Hiromu NISHIDA, Koichi IZU, Nobuyuki OHE, Yoshinori SEKOGUCHI
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Patent number: 9005529Abstract: A housing having a suction port and a discharge port, an impeller 21 and a casing 22 that houses the impeller 21, an air blower 2 housed in the housing, a filter that lets through the air suctioned from the suction port by the air blower 2, and two ion generating sections that generate positive and negative ions are provided. The ion generating section is arranged on a circular-arc guide wall 2a in the casing 22. The positive and negative ions generated by the ion generating section are efficiently included in the air passing through as laminar flow along the circular-arc guide wall 22a.Type: GrantFiled: March 17, 2009Date of Patent: April 14, 2015Assignee: Sharp Kabushiki KaishaInventors: Tsutomu Tsuda, Ichiro Yoshimura, Hiromu Nishida
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Publication number: 20140103793Abstract: In this ion generation apparatus, tip end portions of needle electrodes are aligned in an X direction with being oriented in a Z direction, and protrude from a casing. A protective cover covers the tip end portions of the needle electrodes. The protective cover is provided with holes opened to allow tip ends of the needle electrodes to be seen from the Z direction, and an opening opened to allow the needle electrodes to be seen from a Y direction. Therefore, ions generated at the tip end portions of the needle electrodes can be emitted efficiently out of the casing. Further, a user can be prevented from touching the tip end portion of the needle electrode and injuring his or her finger or the like.Type: ApplicationFiled: April 18, 2012Publication date: April 17, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Hiromu Nishida, Koichi Izu
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Publication number: 20140077701Abstract: In this ion generation apparatus, an induction electrode is formed on a surface of a first printed substrate, a hole is opened on the inside of the induction electrode, a needle electrode is mounted on a second printed substrate, and a tip end portion of the needle electrode is inserted in the hole. Therefore, even if the ion generation apparatus is placed in a high-humidity environment with dust accumulating on the first and the second printed substrates, the ion generation apparatus can prevent a current from leaking between the needle electrode and the induction electrode.Type: ApplicationFiled: April 18, 2012Publication date: March 20, 2014Applicant: SHARP KABUSHIKI KAISHAInventor: Hiromu Nishida
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Patent number: 8559157Abstract: In an ion generation apparatus, an induction electrode for generating positive ions and an induction electrode for generating negative ions are each formed as an independent part and separately mounted on a substrate. Therefore, even if the substrate is warped with changes in temperature, tip end portions of needle electrodes can be positioned at the centers of through holes in the induction electrodes, respectively, and positive ions and negative ions can be stably generated.Type: GrantFiled: July 8, 2009Date of Patent: October 15, 2013Assignee: Sharp Kabushiki KaishaInventor: Hiromu Nishida
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Patent number: 8445863Abstract: An air cleaner includes a negative ion generation portion generating negative ions, a positive ion generation portion generating positive ions, a drive portion adjusting a distance between the ion generation portions, a wind velocity sensor detecting wind velocity at positions where the ion generation portions are installed, and a microcomputer controlling the drive portion based on a detection result of the wind velocity sensor and setting distance D between the ion generation portions to an optimal value. Therefore, since the distance between the ion generation portions is set to the optimal value, a large amount of ion generation can be obtained.Type: GrantFiled: May 21, 2010Date of Patent: May 21, 2013Assignee: Sharp Kabushiki KaishaInventor: Hiromu Nishida