Patents by Inventor Youhei Ishigami
Youhei Ishigami 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: 11552457Abstract: A discharge device according to the present disclosure includes a discharge electrode and a voltage applicator that applies a voltage to the discharge electrode and thus causes discharge that is further developed from corona discharge at the discharge electrode. The discharge is discharge in which a discharge path is intermittently formed by dielectric breakdown so as to stretch from the discharge electrode to a surrounding. This discharge can be called leader discharge. This makes it possible to increase an amount of generated active component while keeping an increase of ozone small.Type: GrantFiled: July 21, 2017Date of Patent: January 10, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Youhei Ishigami, Masaharu Machi, Takafumi Omori, Tomohiro Yamaguchi, Osamu Imahori, Tetsunori Aono, Takayuki Nakada, Yukari Nakano
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Publication number: 20200140274Abstract: The present application discloses an active ingredient generator including a first discharger defining a discharge space in which a first discharge having first energy is generated; and a second discharger which causes a second discharge having second energy larger than the first energy in a passage space through which allows passage of fluid flowing from the discharge space. The second discharge may be a glow discharge.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Inventors: Masaharu MACHI, Youhei ISHIGAMI, Yukiko MISHIMA, Yasuhiro KOMURA, Ayaka SUMIMOTO
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Patent number: 10232329Abstract: A generating method for generating one of mist and fine-bubbles or fine-bubbles is provided. The generating method includes arranging a piezoelectric substrate equipped thereon with an excitation source in a liquid, generating a flow of the liquid using a liquid flow generator that generates the flow of the liquid relative to the piezoelectric substrate, exciting a surface acoustic wave on the excitation source, propagating the excited surface acoustic wave so as to generate mist on a gas side and to generate fine-bubbles on a liquid side of the piezoelectric substrate, carrying the generated fine-bubbles away from the piezoelectric substrate with the generated flow of the liquid, and drawing the liquid containing the fine-bubbles from a liquid container which contains the liquid.Type: GrantFiled: January 20, 2017Date of Patent: March 19, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masanori Okano, Shigeki Fujiwara, Youhei Ishigami
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Patent number: 10099232Abstract: An electrostatic atomizing device of the present disclosure includes a discharge electrode, a counter electrode, a liquid supplying unit, a current path, a voltage applicator, and a limiting resistor. The limiting resistor is disposed on a first current path or a second current path included in the current path. The first current path electrically connects the voltage applicator and the counter electrode, and the second current path electrically connects the voltage applicator and the discharge electrode. This makes it possible to increase an amount of generated radicals while keeping an increase of ozone small. In addition, an electric current peak of an instantaneous electric current can be kept small.Type: GrantFiled: July 21, 2017Date of Patent: October 16, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tetsunori Aono, Tomohiro Yamaguchi, Takafumi Omori, Osamu Imahori, Takayuki Nakada, Youhei Ishigami
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Publication number: 20180034248Abstract: A discharge device according to the present disclosure includes a discharge electrode and a voltage applicator that applies a voltage to the discharge electrode and thus causes discharge that is further developed from corona discharge at the discharge electrode. The discharge is discharge in which a discharge path is intermittently formed by dielectric breakdown so as to stretch from the discharge electrode to a surrounding. This discharge can be called leader discharge. This makes it possible to increase an amount of generated active component while keeping an increase of ozone small.Type: ApplicationFiled: July 21, 2017Publication date: February 1, 2018Inventors: Youhei ISHIGAMI, Masaharu MACHI, Takafumi OMORI, Tomohiro YAMAGUCHI, Osamu IMAHORI, Tetsunori AONO, Takayuki NAKADA, Yukari NAKANO
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Publication number: 20180029053Abstract: An electrostatic atomizing device of the present disclosure includes a discharge electrode, a counter electrode, a liquid supplying unit, a current path, a voltage applicator, and a limiting resistor. The limiting resistor is disposed on a first current path or a second current path included in the current path. The first current path electrically connects the voltage applicator and the counter electrode, and the second current path electrically connects the voltage applicator and the discharge electrode. This makes it possible to increase an amount of generated radicals while keeping an increase of ozone small. In addition, an electric current peak of an instantaneous electric current can be kept small.Type: ApplicationFiled: July 21, 2017Publication date: February 1, 2018Inventors: Tetsunori AONO, Tomohiro YAMAGUCHI, Takafumi OMORI, Osamu IMAHORI, Takayuki NAKADA, Youhei ISHIGAMI
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Publication number: 20170128898Abstract: A generating method for generating one of mist and fine-bubbles or fine-bubbles is provided. The generating method includes arranging a piezoelectric substrate equipped thereon with an excitation source in a liquid, generating a flow of the liquid using a liquid flow generator that generates the flow of the liquid relative to the piezoelectric substrate, exciting a surface acoustic wave on the excitation source, propagating the excited surface acoustic wave so as to generate mist on a gas side and to generate fine-bubbles on a liquid side of the piezoelectric substrate, carrying the generated fine-bubbles away from the piezoelectric substrate with the generated flow of the liquid, and drawing the liquid containing the fine-bubbles from a liquid container which contains the liquid.Type: ApplicationFiled: January 20, 2017Publication date: May 11, 2017Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: MASANORI OKANO, SHIGEKI FUJIWARA, YOUHEI ISHIGAMI
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Publication number: 20160031708Abstract: The present application discloses an active ingredient generator including a first discharger defining a discharge space in which a first discharge having first energy is generated; and a second discharger which causes a second discharge having second energy larger than the first energy in a passage space through which allows passage of fluid flowing from the discharge space. The second discharge may be a glow discharge.Type: ApplicationFiled: February 26, 2014Publication date: February 4, 2016Inventors: Masaharu MACHI, Youhei ISHIGAMI, Yukiko MISHIMA, Yasuhiro KOMURA, Ayaka SUMIMOTO
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Patent number: 8480010Abstract: A surface acoustic wave atomizer includes a piezoelectric substrate which has a pattern electrode on a surface and a liquid supply member for supplying a liquid to the surface and atomizes the liquid supplied to the surface by surface acoustic wave, and between the liquid supply member and the surface of the piezoelectric substrate, a small gap is provided in an area which is designed to hold and guide the liquid and a large gap is provided in an area which is not designed to supply the liquid, so that the liquid is supplied to an atomizing area in an area away from the pattern electrode in the surface of the piezoelectric substrate by using a difference in surface tension due to sizes of the gaps. The liquid can be supplied stably by the small gap and a distribution of the liquid can be limited by the large gap.Type: GrantFiled: October 22, 2009Date of Patent: July 9, 2013Assignee: Panasonic CorporationInventor: Youhei Ishigami
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Publication number: 20130038145Abstract: A drive device which provides an electromagnetic impact and a movement mechanism using the drive device to achieve a reciprocating movement with a compact and simple configuration. A drive device provides an impact to an object-to-be-moved supported by a friction surface and moves the object-to-be-moved, and includes an electromagnetic coil, a permanent magnet, a stopper, and a control device which controls the electromagnetic coil. The permanent magnet relatively moves to the electromagnetic coil by an action caused by an electrical current supply to the electromagnetic coil. When the electrical current is supplied to the electromagnetic coil, the permanent magnet collides with the electromagnetic coil or the stopper, which forms the collided-body, and generates the impact. The impact can be generated in any direction, then a reciprocating movement of the object-to-be-moved can be achieved.Type: ApplicationFiled: February 16, 2011Publication date: February 14, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Shigeki Fujiwara, Youhei Ishigami, Yoshio Mitsutake, Satoshi Suzuki
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Patent number: 8360341Abstract: Atomization apparatus is configured to produce mist by atomizing liquid after electrolysis to discharge the mist. The apparatus includes a substrate, an electrolysis device and a vibration device. The substrate includes: a liquid receiving part having a liquid storage surface; and a reservoir having a discharge surface. The electrolysis device has an anode and a cathode located at the liquid receiving part. The reservoir holds the liquid after electrolysis obtained from one of the anode and the cathode. The discharge surface is located at the side of the one of the anode and the cathode. The vibration device is configured to vibrate and atomize the liquid after electrolysis held at the reservoir.Type: GrantFiled: May 14, 2009Date of Patent: January 29, 2013Assignee: Panasonic Electric Works Co., Ltd.Inventors: Masaharu Machi, Hiroshi Suda, Youhei Ishigami
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Publication number: 20130020418Abstract: An electrostatic atomizer comprises an atomization unit provided with a microstrip line having first and second ends, a microwave input unit configured to input a microwave signal to the first end, and a liquid supply means configured to supply liquid to the second end side. Consequently, the emission of ozone with charged particulate water containing an active ingredient can be suppressed while the amount of generation of the charged particulate water is ensured.Type: ApplicationFiled: March 24, 2011Publication date: January 24, 2013Applicant: PANASONIC CORPORATIONInventors: Masaharu Machi, Toshiyuki Yamauchi, Hiroshi Suda, Youhei Ishigami
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Publication number: 20130009492Abstract: A drive device includes two integrated electromagnetic coils separated on an axis, an elastic body, and two movable electric conductors. An object-to-be-moved is moved to left with an operation of a left group which includes one electromagnetic coil and one conductor. A first conductor is repulsively moved to right by a repulsion force caused by an eddy current generated on the first conductor with an electrical current-supply to a first electromagnetic coil and then, the elastic body is compressed by the first conductor and subsequently pushes back the first conductor. At this time, the electrical current-supply to the first electromagnetic coil is turned off, and the first conductor collides with the first electromagnetic coil, and this collision generates a leftward impact. The left and right groups enable a left-right reciprocating movement.Type: ApplicationFiled: February 16, 2011Publication date: January 10, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Shigeki Fujiwara, Youhei Ishigami, Yoshio Mitsutake, Satoshi Suzuki
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Publication number: 20120097752Abstract: In a generating method and a generator of mist or fine-bubble, with a simple and small configuration, application into a wide range kind of liquid is enabled, and generating stably the mist or the fine-bubbles or both is enabled. The generator is provided with a piezoelectric substrate which equips two or more comb-like electrodes on a surface and arranged so that the surface may intersect the mutual interface of the gas and the liquid and a part of piezoelectric substrate is put in a liquid, and a surface acoustic wave excited on the surface with the electrode is made to propagate along the surface so that may exist in the upper and lower sides of an interface. The surface acoustic wave generates mist in the gas side which is above the interface, and generates fine-bubbles in the liquid side which is below the interface.Type: ApplicationFiled: June 2, 2010Publication date: April 26, 2012Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventors: Masanori Okano, Shigeki Fujiwara, Youhei Ishigami
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Publication number: 20110192914Abstract: There is provided a surface acoustic wave atomizer which can guide a liquid to an atomizing area on a substrate surface stably at a constant quantity per unit time and can limit a distribution of the liquid on the substrate surface, so that a stable and efficient atomization and a deterioration control of an interdigital transducer and so on can be achieved with a simple configuration.Type: ApplicationFiled: October 22, 2009Publication date: August 11, 2011Applicant: PANASONIC ELECTRIC WORKS CO., LTD.Inventor: Youhei Ishigami
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Publication number: 20110068193Abstract: Atomization apparatus is configured to produce mist by atomizing liquid after electrolysis to discharge the mist. The apparatus includes a substrate, an electrolysis device and a vibration device. The substrate includes: a liquid receiving part having a liquid storage surface; and a reservoir having a discharge surface. The electrolysis device has an anode and a cathode located at the liquid receiving part. The reservoir holds the liquid after electrolysis obtained from one of the anode and the cathode. The discharge surface is located at the side of the one of the anode and the cathode. The vibration device is configured to vibrate and atomize the liquid after electrolysis held at the reservoir.Type: ApplicationFiled: May 14, 2009Publication date: March 24, 2011Applicant: Panasonic Electric Works Co., LtdInventors: Masaharu Machi, Hiroshi Suda, Youhei Ishigami
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Patent number: 7615909Abstract: In an energy recovery type surface acoustic wave motor, an increase in energy efficiency at the time of energy recovery and supply is achieved by adjusting phase change.Type: GrantFiled: March 27, 2006Date of Patent: November 10, 2009Assignees: Panasonic Electric Works Co., Ltd, Tokyo Institute of TechnologyInventors: Masahiro Kirigaya, Masahiro Sato, Youhei Ishigami, Kazuo Sawada, Minoru Kurosawa
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Publication number: 20080252171Abstract: In an energy recovery type surface acoustic wave motor, an increase in energy efficiency at the time of energy recovery and supply is achieved by adjusting phase change.Type: ApplicationFiled: March 27, 2006Publication date: October 16, 2008Applicants: Matsushita Electric Works, Ltd., Tokyo Institute of TechnologyInventors: Masahiro Kirigaya, Masahiro Sato, Youhei Ishigami, Kazuo Sawada, Minoru Kurosawa
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Patent number: 7304407Abstract: A linear oscillating actuator gives a smooth reciprocatory movement with a minimum of incidental vibrations or stresses. The actuator includes an oscillator carrying a permanent magnet as well as an output shaft which is adapted to be connected to drive a load, and a stator assembly carrying an electromagnet. The electromagnet generates a magnetic field which interacts with the permanent magnet to reciprocate the oscillator relative to the stator assembly in a linear path. A spring link is provided to resiliently support the oscillator to the stator assembly with a gap distance left therebetween for allowing the oscillator to reciprocate in the linear path. The spring link is configured to deform resiliently also in a direction other than along the linear path so as to allow the oscillator to move to and away from the stator assembly or to twist relative to the stator assembly.Type: GrantFiled: December 17, 2004Date of Patent: December 4, 2007Assignee: Matsushita Electric Works, Ltd.Inventors: Wataru Sanematsu, Satoshi Nakayama, Makoto Fujiwara, Chizuko Mishima, Youhei Ishigami
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Patent number: D925480Type: GrantFiled: January 23, 2019Date of Patent: July 20, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Jumpei Oe, Youhei Ishigami, Kana Shimizu, Takafumi Omori, Tetsunori Aono, Takayuki Nakada