Patents by Inventor Naohisa Makihira
Naohisa Makihira 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: 11130092Abstract: Provided is method for concentrating ozone gas the method including the steps of: allowing ozone gas to be adsorbed onto the adsorbent by introducing ozone gas-containing raw material mixed gas into an adsorption vessel (20) that houses an adsorbent for adsorbing ozone gas; reducing a pressure in a concentration vessel (30) in a state where the concentration vessel (30) does not communicate with the adsorption vessel (20), the concentration vessel (30) being configured to be connected to the adsorption vessel (20) so as to be interswitchable between a state where the concentration vessel (30) communicates with the adsorption vessel (20) and a state where the concentration vessel does not communicate with the adsorption vessel (20); and introducing concentrated mixed gas including ozone gas with a higher ozone gas concentration than the ozone gas concentration in the raw material mixed gas into the concentration vessel (30) by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference betwType: GrantFiled: March 3, 2017Date of Patent: September 28, 2021Assignee: IWATANI CORPORATIONInventors: Sadaki Nakamura, Koichi Izumi, Naohisa Makihira
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Patent number: 11123679Abstract: Provided is a method for concentrating ozone gas, including the steps of: allowing ozone gas to be adsorbed onto an adsorbent in a first adsorption vessel; reducing pressure in a concentration vessel in a state where the concentration vessel does not communicate with the first adsorption vessel; discharging part of gas in the first adsorption vessel; introducing first concentrated mixed gas in the concentration vessel by desorbing ozone gas in the first concentrated mixed gas and delivering the desorbed ozone gas into the concentration vessel; allowing ozone gas to be adsorbed onto an adsorbent in a second adsorption vessel; and introducing second concentrated mixed gas into the concentration vessel in a state where the concentration vessel into which the first concentrated mixed gas is introduced and the second adsorption vessel that houses an adsorbent. Also provided is an apparatus for concentrating ozone gas for implementing the method.Type: GrantFiled: March 3, 2017Date of Patent: September 21, 2021Assignee: IWATANI CORPORATIONInventors: Sadaki Nakamura, Koichi Izumi, Naohisa Makihira
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Patent number: 10597296Abstract: A method for supplying an ozone gas includes the steps of: supplying an ozone gas from an ozone gas source through a second channel; and switching the ozone gas to a state where the ozone gas is supplied through a first channel and supplying the ozone gas having a reduced concentration of nitrogen oxide. The step of supplying the ozone gas through the second channel includes the step of introducing a part of the ozone gas to a first vessel so that ozone adsorbability of a first adsorbent is reduced. In the step of supplying the ozone gas to the object through the first channel, the ozone gas passes through the first vessel holding the first adsorbent having reduced ozone adsorbability.Type: GrantFiled: June 29, 2016Date of Patent: March 24, 2020Assignee: IWATANI CORPORATIONInventors: Naohisa Makihira, Koichi Izumi, Masahiro Furutani
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Publication number: 20190126191Abstract: Provided is a method for concentrating ozone gas, including the steps of: allowing ozone gas to be adsorbed onto an adsorbent in a first adsorption vessel; reducing pressure in a concentration vessel in a state where the concentration vessel does not communicate with the first adsorption vessel; discharging part of gas in the first adsorption vessel; introducing first concentrated mixed gas in the concentration vessel by desorbing ozone gas in the first concentrated mixed gas and delivering the desorbed ozone gas into the concentration vessel; allowing ozone gas to be adsorbed onto an adsorbent in a second adsorption vessel; and introducing second concentrated mixed gas into the concentration vessel in a state where the concentration vessel into which the first concentrated mixed gas is introduced and the second adsorption vessel that houses an adsorbent. Also provided is an apparatus for concentrating ozone gas for implementing the method.Type: ApplicationFiled: March 3, 2017Publication date: May 2, 2019Applicant: IWATANI CORPORATIONInventors: Sadaki NAKAMURA, Koichi IZUMI, Naohisa MAKIHIRA
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Publication number: 20190111379Abstract: Provided is method for concentrating ozone gas the method including the steps of: allowing ozone gas to be adsorbed onto the adsorbent by introducing ozone gas-containing raw material mixed gas into an adsorption vessel (20) that houses an adsorbent for adsorbing ozone gas; reducing a pressure in a concentration vessel (30) in a state where the concentration vessel (30) does not communicate with the adsorption vessel (20), the concentration vessel (30) being configured to be connected to the adsorption vessel (20) so as to be interswitchable between a state where the concentration vessel (30) communicates with the adsorption vessel (20) and a state where the concentration vessel does not communicate with the adsorption vessel (20); and introducing concentrated mixed gas including ozone gas with a higher ozone gas concentration than the ozone gas concentration in the raw material mixed gas into the concentration vessel (30) by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference betwType: ApplicationFiled: March 3, 2017Publication date: April 18, 2019Applicant: IWATANI CORPORATIONInventors: Sadaki NAKAMURA, Koichi IZUMI, Naohisa MAKIHIRA
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Publication number: 20180257934Abstract: A method for supplying an ozone gas includes the steps of: supplying an ozone gas from an ozone gas source through a second channel; and switching the ozone gas to a state where the ozone gas is supplied through a first channel and supplying the ozone gas having a reduced concentration of nitrogen oxide. The step of supplying the ozone gas through the second channel includes the step of introducing a part of the ozone gas to a first vessel so that ozone adsorbability of a first adsorbent is reduced. In the step of supplying the ozone gas to the object through the first channel, the ozone gas passes through the first vessel holding the first adsorbent having reduced ozone adsorbability.Type: ApplicationFiled: June 29, 2016Publication date: September 13, 2018Applicant: IWATANI CORPORATIONInventors: Naohisa MAKIHIRA, Koichi IZUMI, Masahiro FURUTANI
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Patent number: 9533268Abstract: A method and apparatus, for supplying high-pressure mixed gas of a low-vapor-pressure first gas as an active gas and a high-vapor-pressure second gas, are arranged to reduce an amount of the first gas discarded. The mixed gas in a high-pressure state is supplied from a mixing container to a use point. Upon reduction of pressure in the mixing container to a setpoint as a result of supply to the use point, a predetermined amount of the first gas is charged into a replenishment container connected to the mixing container by a replenishment line having a replenishment valve, and which is evacuated. As the second gas is charged into the replenishment container charged with the first gas, the replenishment valve is opened such that the first gas in the replenishment container is forced out by the second gas, thereby charging the mixing container with the mixed gas in the high-pressure condition.Type: GrantFiled: October 10, 2014Date of Patent: January 3, 2017Assignees: IWATANI CORPORATION, CENTRAL GLASS COMPANY, LIMITEDInventors: Kunihiko Koike, Yu Yoshino, Naohisa Makihira, Takehiko Senoo, Toshihiro Aida, Tomoya Biro, Hiroshi Ichimaru, Masahiro Tainaka
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Patent number: 9080131Abstract: The disclosed device and method produce high concentration ozonated water by connecting a high concentration ozone gas-supplying system that comprises an ozone gas-generating unit (1) for forming ozone gas, an ozone gas-concentrating unit (2) for concentrating the ozone gas formed, a concentrated ozone gas-pressurizing unit (3) for pressurizing the concentrated ozone gas output from the ozone gas-concentrating unit (2), and a cooling mechanism (13) for cooling the concentrated ozone gas-pressurizing unit (3), to an ozone gas-dissolving unit (4) to dissolve the high pressure, concentrated ozone gas in pure water and produce the high concentration ozonated water.Type: GrantFiled: November 25, 2010Date of Patent: July 14, 2015Assignees: SHARP KABUSHIKI KAISHA, IWATANI CORPORATIONInventors: Kunihiko Koike, Sadaki Nakamura, Naohisa Makihira, Koichi Izumi, Goichi Inoue, Norikazu Hohshi, Takashi Minamihonoki
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Patent number: 8945278Abstract: A method of concentrating ozone gas including: causing ozone gas contained in ozone-oxygen mixture gas to be selectively adsorbed to adsorbents which are filled in a non-cooled state in at least two adsorbing cylinders arranged parallel to one another; desorbing the ozone gas from the adsorbents by subjecting a depressurizing process to each adsorbing cylinder during an ozone gas desorption operation; repeating an adsorption step and a desorption step alternately in the at least two adsorbing cylinders; and controlling the adsorbing cylinders, in such a way that one of the adsorbing cylinders is performing the adsorption step while another one of the adsorbing cylinders is performing the desorption step.Type: GrantFiled: August 29, 2012Date of Patent: February 3, 2015Assignee: Iwatani CorporationInventors: Naohisa Makihira, Sadaki Nakamura, Goichi Inoue, Kunihiko Koike
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Publication number: 20150020890Abstract: A method and apparatus, for supplying high-pressure mixed gas of a low-vapor-pressure first gas as an active gas and a high-vapor-pressure second gas, are arranged to reduce an amount of the first gas discarded. The mixed gas in a high-pressure state is supplied from a mixing container to a use point. Upon reduction of pressure in the mixing container to a setpoint as a result of supply to the use point, a predetermined amount of the first gas is charged into a replenishment container connected to the mixing container by a replenishment line having a replenishment valve, and which is evacuated. As the second gas is charged into the replenishment container charged with the first gas, the replenishment valve is opened such that the first gas in the replenishment container is forced out by the second gas, thereby charging the mixing container with the mixed gas in the high-pressure condition.Type: ApplicationFiled: October 10, 2014Publication date: January 22, 2015Inventors: Kunihiko KOIKE, Yu YOSHINO, Naohisa MAKIHIRA, Takehiko SENOO, Toshihiro AIDA, Tomoya BIRO, Hiroshi ICHIMARU, Masahiro TAINAKA
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Publication number: 20130079269Abstract: The disclosed device and method produce high concentration ozonated water by connecting a high concentration ozone gas-supplying system that comprises an ozone gas-generating unit (1) for forming ozone gas, an ozone gas-concentrating unit (2) for concentrating the ozone gas formed, a concentrated ozone gas-pressurizing unit (3) for pressurizing the concentrated ozone gas output from the ozone gas-concentrating unit (2), and a cooling mechanism (13) for cooling the concentrated ozone gas-pressurizing unit (3), to an ozone gas-dissolving unit (4) to dissolve the high pressure, concentrated ozone gas in pure water and produce the high concentration ozonated water.Type: ApplicationFiled: November 25, 2010Publication date: March 28, 2013Applicants: IWATANI CORPORATION, SHARP KABUSHIKI KAISHAInventors: Kunihiko Koike, Sadaki Nakamura, Naohisa Makihira, Koichi Izumi, Goichi Inoue, Norikazu Hohshi, Takashi Minamihonoki
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Patent number: 8404022Abstract: A method of concentrating ozone gas in which, although the apparatus configuration is simple, ozone gas of a predetermined concentration can be efficiently taken out, and an apparatus therefor are provided. In a method of concentrating ozone gas in which an ozone-oxygen mixture gas is acted in an adsorbing column that is filled with an adsorbent, to cause the adsorbent to selectively adsorb the ozone gas, and the selectively adsorbed ozone gas is desorbed, thereby concentrating and purifying the ozone gas, the ozone-oxygen mixture gas is acted on the adsorbent in a non-cooled state to cause the ozone gas to be selectively adsorbed to the adsorbent, the adsorbing column is vacuumed when performing an operation desorbing of the ozone gas, thereby desorbing the ozone gas from the adsorbent, and an initial amount of the leading out of the desorbed ozone gas is not recovered, thereby obtaining high-concentration ozone gas.Type: GrantFiled: July 23, 2008Date of Patent: March 26, 2013Assignee: Iwatani CorporationInventors: Kunihiko Koike, Sadaki Nakamura, Naohisa Makihira, Koichi Izumi, Shigenori Takatori
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Publication number: 20130061750Abstract: A method of concentrating ozone gas including: causing ozone gas contained in ozone-oxygen mixture gas to be selectively adsorbed to adsorbents which are filled in a non-cooled state in at least two adsorbing cylinders arranged parallel to one another; desorbing the ozone gas from the adsorbents by subjecting a depressurizing process to each adsorbing cylinder during an ozone gas desorption operation; repeating an adsorption step and a desorption step alternately in the at least two adsorbing cylinders; and controlling the adsorbing cylinders, in such a way that one of the adsorbing cylinders is performing the adsorption step while another one of the adsorbing cylinders is performing the desorption step.Type: ApplicationFiled: August 29, 2012Publication date: March 14, 2013Applicant: IWATANI CORPORATIONInventors: Naohisa Makihira, Sadaki Nakamura, Goichi Inoue, Kunihiko Koike
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Publication number: 20110123430Abstract: A method of concentrating ozone gas in which, although the apparatus configuration is simple, ozone gas of a predetermined concentration can be efficiently taken out, and an apparatus therefor are provided. In a method of concentrating ozone gas in which an ozone-oxygen mixture gas is acted in an adsorbing column that is filled with an adsorbent, to cause the adsorbent to selectively adsorb the ozone gas, and the selectively adsorbed ozone gas is desorbed, thereby concentrating and purifying the ozone gas, the ozone-oxygen mixture gas is acted on the adsorbent in a non-cooled state to cause the ozone gas to be selectively adsorbed to the adsorbent, the adsorbing column is vacuumed when performing an operation desorbing of the ozone gas, thereby desorbing the ozone gas from the adsorbent, and an initial amount of the leading out of the desorbed ozone gas is not recovered, thereby obtaining high-concentration ozone gas.Type: ApplicationFiled: July 23, 2008Publication date: May 26, 2011Applicants: IWATANI CORPORATION, KOHTAKI PRECISION MACHINE CO., LTD.Inventors: Kunihiko Koike, Sadaki Nakamura, Naohisa Makihira, Koichi Izumi, Shigenori Takatori