Patents by Inventor Masaki Kuzumoto
Masaki Kuzumoto 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: 8920741Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104? to 1011?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: GrantFiled: July 23, 2009Date of Patent: December 30, 2014Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Yasutaka Inanaga
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Patent number: 8524163Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104? to 1011?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: GrantFiled: July 23, 2009Date of Patent: September 3, 2013Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Yasutaka Inanaga
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Patent number: 8444831Abstract: A method of generating ozone by applying a silent discharge to oxygen as a first raw material gas, and an oxide compound gas, as a second raw material gas, in which excited light, excited and generated by a discharge in the oxygen and the oxide compound gas, dissociates the oxide compound gas, or excites the oxide compound gas, accelerating dissociation of the oxygen and generation of ozone. In this way, ozone generation efficiency is raised.Type: GrantFiled: January 11, 2012Date of Patent: May 21, 2013Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Youichiro Tabata, Hajime Nakatani, Masaki Kuzumoto
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Patent number: 8328998Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104? to 1011?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: GrantFiled: January 11, 2010Date of Patent: December 11, 2012Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Yasutaka Inanaga
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Publication number: 20120103791Abstract: A method of generating ozone by applying a silent discharge to oxygen as a first raw material gas, and an oxide compound gas, as a second raw material gas, in which excited light, excited and generated by a discharge in the oxygen and the oxide compound gas, dissociates the oxide compound gas, or excites the oxide compound gas, accelerating dissociation of the oxygen and generation of ozone. In this way, ozone generation efficiency is raised.Type: ApplicationFiled: January 11, 2012Publication date: May 3, 2012Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Youichiro TABATA, Hajime NAKATANI, Masaki KUZUMOTO
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Patent number: 7965372Abstract: A photoresist film removing apparatus includes a reacting chamber, an ozonizer producing a gas supplied to the reacting chamber, and an exhaust system that exhausts the gas from the reacting chamber. A source of a photoresist film-remover is located opposite a stage carrying a substrate covered with photoresist. Photoresist film-remover and the gas are supplied to the substrate through apertures. An electric field may be generated between the source of the photoresist film-remover and the substrate. Alternatively, a centrally located feed tube supplies only one of the gas and the photoresist film-remover through a single aperture and a reservoir discharges the other through apertures. The reservoir surrounds and is sealed to the feed tube. The apparatus may include a container holding a liquid photoresist film-remover and a mixture of the gas and remover is supplied from outside the reacting chamber to the substrate.Type: GrantFiled: April 30, 2002Date of Patent: June 21, 2011Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Seiji Noda, Masaki Kuzumoto, Izumi Oya, Makoto Miyamoto
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Patent number: 7922979Abstract: A silent discharge plasma apparatus includes a dielectric member, a pair of electrodes opposed to each other across the dielectric member and an alternating-current source applying an alternating-current voltage between the electrodes and causing a discharge. A gas is supplied to a discharge space, where discharge occurs, and a plasma is produced. At least one of the electrodes includes a conductive power feeding thin film on the dielectric member. When the dielectric member is destroyed and an arc discharge develops between the electrodes, the power feeding thin film is eliminated or oxidized, and the arc discharge is stopped.Type: GrantFiled: March 16, 2006Date of Patent: April 12, 2011Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Hajime Nakatani, Hiroyuki Igehara, Norimitsu Esaki, Shingo Mine, Taichiro Tamida
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Patent number: 7785406Abstract: It is intended to provide a volatile organic compound treatment apparatus having: an absorption treatment chamber in which absorption frames having absorbents for absorbing volatile organic compounds are aligned in a direction of a gas flow; an absorbent recovery treatment chamber that is provided with a discharge unit having a high voltage electrode, a ground electrode, and a dielectric; and a transfer mechanism for transferring the absorption frames present in an upstream of the gas flow to the absorbent recovery treatment chamber and transferring the absorption frames in the absorbent recovery treatment chamber to a downstream of the gas flow. The volatile organic compound treatment apparatus is capable of decomposing VOC without generating a large amount of harmful NOx and reduced in apparatus cost.Type: GrantFiled: June 21, 2006Date of Patent: August 31, 2010Assignee: Mitsubishi Electric CorporationInventors: Kouji Ota, Yasutaka Inanaga, Yasuhiro Tanimura, Masaki Kuzumoto, Hajime Nakatani, Hideo Ichimura, Akio Masuda, Shigeki Maekawa, Masaharu Moriyasu
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Patent number: 7713495Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104 ? to 1011 ?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: GrantFiled: April 4, 2005Date of Patent: May 11, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noboru Wada, Masaki Kuzumoto, Yasutaka Inanaga
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Publication number: 20100108493Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104 ? to 1011 ?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: ApplicationFiled: January 11, 2010Publication date: May 6, 2010Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Noboru WADA, Masaki Kuzumoto, Yasutaka Inanaga
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Publication number: 20090283399Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104 ? to 1011 ?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.Type: ApplicationFiled: July 23, 2009Publication date: November 19, 2009Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Noboru WADA, Masaki KUZUMOTO, Yasutaka INANAGA
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Publication number: 20090236042Abstract: A silent discharge plasma apparatus includes a dielectric member, a pair of electrodes opposed to each other across the dielectric member and an alternating-current source applying an alternating-current voltage between the electrodes and causing a discharge. A gas is supplied to a discharge space, where discharge occurs, and a plasma is produced. At least one of the electrodes includes a conductive power feeding thin film on the dielectric member. When the dielectric member is destroyed and an arc discharge develops between the electrodes, the power feeding thin film is eliminated or oxidized, and the arc discharge is stopped.Type: ApplicationFiled: March 16, 2006Publication date: September 24, 2009Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Noboru Wada, Masaki Kuzumoto, Hajime Nakatani, Hiroyuki Igehara, Norimitsu Esaki, Shingo Mine, Taichiro Tamida
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Publication number: 20080213140Abstract: An ozone generator for generating ozone by applying a specified process to oxygen by discharge includes a first raw material gas supply unit for supplying the oxygen as a first raw material gas, and a second raw material gas supply unit for supplying an oxide compound gas as a second raw material gas, in which, by excited light, excited and generated by a discharge in the oxygen and the oxide compound gas, the oxide compound gas is dissociated, or the oxide compound gas is excited accelerating dissociation of the oxygen, and ozone is generated. In this way, ozone generation efficiency is raised.Type: ApplicationFiled: April 10, 2008Publication date: September 4, 2008Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Youichiro Tabata, Hajime Nakatani, Masaki Kuzumoto
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Publication number: 20080210084Abstract: It is intended to provide a volatile organic compound treatment apparatus having: an absorption treatment chamber in which absorption frames having absorbents for absorbing volatile organic compounds are aligned in a direction of a gas flow; an absorbent recovery treatment chamber that is provided with a discharge unit having a high voltage electrode, a ground electrode, and a dielectric; and a transfer mechanism for transferring the absorption frames present in an upstream of the gas flow to the absorbent recovery treatment chamber and transferring the absorption frames in the absorbent recovery treatment chamber to a downstream of the gas flow. The volatile organic compound treatment apparatus is capable of decomposing VOC without generating a large amount of harmful NOx and reduced in apparatus cost.Type: ApplicationFiled: June 21, 2006Publication date: September 4, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kouji Ota, Yasutaka Inanaga, Yasuhiro Tanimura, Masaki Kuzumoto, Hajime Nakatani, Hideo Ichimura, Akio Masuda, Shigeki Maekawa, Masaharu Moriyasu
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Publication number: 20080206115Abstract: An ozone generator for generating ozone by applying a specified process to oxygen by discharge includes a first raw material gas supply unit for supplying the oxygen as a first raw material gas, and a second raw material gas supply unit for supplying an oxide compound gas as a second raw material gas, in which, by excited light, excited and generated by a discharge in the oxygen and the oxide compound gas, the oxide compound gas is dissociated, or the oxide compound gas is excited accelerating dissociation of the oxygen, and ozone is generated. In this way, ozone generation efficiency is raised.Type: ApplicationFiled: April 10, 2008Publication date: August 28, 2008Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Youichiro Tabata, Hajime Nakatani, Masaki Kuzumoto
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Patent number: 7316734Abstract: A volatile organic compound treatment apparatus including an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes, divided into a plurality of groups, which generate electric discharge so that a part of the adsorber is exposed to the electric discharge; and an electric discharge control mechanism for controlling whether or not the electric discharge is generated in what pair of the electrodes by applying a voltage to every group of the pair of electrodes such that different parts of the adsorber are sequentially exposed to the electric discharge.Type: GrantFiled: June 20, 2005Date of Patent: January 8, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Koji Ohta, Masaki Kuzumoto, Yasuhiro Tanimura, Hajime Nakatani, Toshiaki Yoshizumi, Hideo Ichimura
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Patent number: 7108836Abstract: An ozonizer has a flat plate-shaped low voltage electrode, flat plate-shaped first and second high voltage electrodes facing the low voltage electrode, a first dielectric, and a first spacer, located between the low voltage electrode and the first high voltage electrode, a second dielectric, and a second spacer between the electrode and the second high voltage electrode. The ozonizer also has a first electrode cooling sheet facing the first high voltage electrode at a side opposite a first discharge gap, a second electrode cooling sheet facing the second high voltage electrode, a first thermally conducting and electrically insulating sheet sandwiched between the first high voltage electrode and the first electrode cooling sheet, and a second thermally conducting and electrically insulating sheet sandwiched between the second high voltage electrode and the second electrode cooling sheet.Type: GrantFiled: May 29, 2002Date of Patent: September 19, 2006Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yujiro Okihara, Youichiro Tabata, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae
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Publication number: 20050284295Abstract: A volatile organic compound treatment apparatus comprising: an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes, divided into a plurality of groups, which generate electric discharge so that a part of the adsorber is exposed to the electric discharge; and an electric discharge control mechanism for controlling whether or not the electric discharge is generated in what pair of the electrodes by applying a voltage to every group of the pair of electrodes such that different parts of the adsorber are sequentially exposed to the electric discharge.Type: ApplicationFiled: June 20, 2005Publication date: December 29, 2005Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Koji Ohta, Masaki Kuzumoto, Yasuhiro Tanimura, Hajime Nakatani, Toshiaki Yoshizumi, Hideo Ichimura
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Patent number: 6955178Abstract: A substrate treatment apparatus includes a substrate heating device for maintaining a substrate at a temperature higher than room temperature, a wetting device for producing a wet ozone-containing gas by wetting an ozone-containing gas with a treatment solution, and a supply device for supplying the wet ozone-containing gas from the wetting device to a work object on a surface of the substrate. The supply device includes a gas disperser including apertures aligned in rows in a width direction of the work object. The apertures in adjacent rows are not aligned with each other in a direction perpendicular to the rows. At least one of the gas disperser and the substrate is movable in a direction perpendicular to the rows. A gas conduit connects the wetting device to the supply device. A wet ozone-containing gas heating device heats the wet ozone-containing gas to a temperature at least equal to the temperature of the substrate.Type: GrantFiled: July 25, 2003Date of Patent: October 18, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masaki Kuzumoto, Seiji Noda, Izumi Oya, Makoto Miyamoto, Hideo Horibe, Tatsuo Kataoka, Tetsuji Oishi
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Patent number: RE40746Abstract: An ozonizer has a flat plate-shaped low voltage electrode 7, a flat plate-shaped high voltage electrode 3 facing a main surface of the low voltage electrode 7. The ozonizer also has a flat plate-shaped dielectric 5 and a spacer for forming a discharge gap 6 of a thin thickness in a laminating direction provided between the low voltage electrode 7 and the electrode 3, an electrode cooling sheet 1 provided facing a main surface of the electrode 3 at a side opposite the discharge gap 6 for cooling the electrode 3. The ozonizer also has a thermal conducting/electric insulating sheet 2 sandwiched between the electrode 3 and the electrode cooling sheet 1. An alternating voltage is applied between the low voltage electrode 7 and the electrode 3 and a discharge is produced in the discharge gap 6 injected with oxygen gas to produce ozone gas.Type: GrantFiled: September 23, 2005Date of Patent: June 16, 2009Assignee: Toshiba Mitsubishi-Electric Industrial System CorporationInventors: Yujiro Okihara, Youichiro Tabata, Akaru Usui, Hiromichi Komiya, Yuji Ganryu, Masaki Kuzumoto, Noboru Wada, Koji Ohta, Shigenori Yagi, Hirozoh Kanegae