Patents by Inventor Yujiro Okihara
Yujiro Okihara 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: 10384939Abstract: In an ozone generation apparatus, a discharge cell includes a first electrode part, a second electrode part, and a dielectric partition plate. The first electrode part and the second electrode part face each other, and the dielectric partition plate is provided between the first and second electrode parts.Type: GrantFiled: October 29, 2014Date of Patent: August 20, 2019Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Shinichi Nishimura
-
Patent number: 9848484Abstract: A power supply apparatus includes a controller that performs the following action. The controller determines a target direct-current electric amount value in accordance with an external input. Then, the controller performs feedback control in such a manner that an amount of direct-current electric power input to an inverter reaches the target direct-current electric amount value.Type: GrantFiled: October 4, 2013Date of Patent: December 19, 2017Assignee: Toshiba Misubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Noriyuki Nakamura, Shinichi Nishimura
-
Publication number: 20170267525Abstract: In an ozone generation apparatus, a discharge cell includes a first electrode part, a second electrode part, and a dielectric partition plate. The first electrode part and the second electrode part face each other, and the dielectric partition plate is provided between the first and second electrode parts.Type: ApplicationFiled: October 29, 2014Publication date: September 21, 2017Applicant: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro TABATA, Yujiro OKIHARA, Shinichi NISHIMURA
-
Patent number: 9750121Abstract: A power supply apparatus outputs an alternating-current voltage to a plasma generator being a capacitive load and the power supply apparatus has a configuration that a transformer included in the power supply apparatus has a secondary-side magnetizing inductance more than five times as great as a leakage inductance.Type: GrantFiled: October 4, 2013Date of Patent: August 29, 2017Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Noriyuki Nakamura, Shinichi Nishimura
-
Patent number: 9713244Abstract: A power supply apparatus includes a controller that performs the following action and resonance means for creating a resonance state between the power supply apparatus and a plasma generator. That is, the controller changes, when a value of electric power input equal to 100% (or a value of electric power input equal to or more than a threshold % and equal to or less than 100%) of a rated power is instructed, an inverter frequency and obtains an inverter output power factor for each of a plurality of inverter frequencies. Then, the controller determines, as a driving frequency of the inverter, one of the plurality of inverter frequencies at which the inverter output power factor is maximized.Type: GrantFiled: October 4, 2013Date of Patent: July 18, 2017Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Noriyuki Nakamura, Shinichi Nishimura
-
Patent number: 9615440Abstract: A current-limiting reactor that regulates a short-circuit current, a controller that controls an action of an inverter, and a detection unit that detects a short circuit. The controller causes the inverter to stop when a short circuit has occurred.Type: GrantFiled: October 4, 2013Date of Patent: April 4, 2017Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Noriyuki Nakamura, Shinichi Nishimura
-
Publication number: 20160234925Abstract: A power supply apparatus outputs an alternating-current voltage to a plasma generator being a capacitive load and the power supply apparatus has a configuration that a transformer included in the power supply apparatus has a secondary-side magnetizing inductance more than five times as great as a leakage inductance.Type: ApplicationFiled: October 4, 2013Publication date: August 11, 2016Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yoichiro TABATA, Yujiro OKIHARA, Noriyuki NAKAMURA, Shinichi NISHIMURA
-
Publication number: 20160234922Abstract: A current-limiting reactor that regulates a short-circuit current, a controller that controls an action of an inverter, and a detection unit that detects a short circuit. The controller causes the inverter to stop when a short circuit has occurred.Type: ApplicationFiled: October 4, 2013Publication date: August 11, 2016Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yoichiro TABATA, Yujiro OKIHARA, Noriyuki NAKAMURA, Shinichi NISHIMURA
-
Publication number: 20160234923Abstract: A power supply apparatus includes a controller that performs the following action and resonance means for creating a resonance state between the power supply apparatus and a plasma generator. That is, the controller changes, when a value of electric power input equal to 100% (or a value of electric power input equal to or more than a threshold % and equal to or less than 100%) of a rated power is instructed, an inverter frequency and obtains an inverter output power factor for each of a plurality of inverter frequencies. Then, the controller determines, as a driving frequency of the inverter, one of the plurality of inverter frequencies at which the inverter output power factor is maximized.Type: ApplicationFiled: October 4, 2013Publication date: August 11, 2016Applicant: TOSHIBA MITSUBISHI-ELECRTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yoichiro TABATA, Yujiro OKIHARA, Noriyuki NAKAMURA, Shinichi NISHIMURA
-
Publication number: 20160234921Abstract: A power supply apparatus includes a controller that performs the following action. The controller determines a target direct-current electric amount value in accordance with an external input. Then, the controller performs feedback control in such a manner that an amount of direct-current electric power input to an inverter reaches the target direct-current electric amount value.Type: ApplicationFiled: October 4, 2013Publication date: August 11, 2016Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yoichiro TABATA, Yujiro OKIHARA, Noriyuki NAKAMURA, Shinichi NISHIMURA
-
Patent number: 9186647Abstract: In the present invention, a gas pipe integrated block has a plurality of internal pipe paths. The plurality of internal pipe paths are connected to an ozone generator, control means, a raw gas supply port, an ozone gas output port, and cooling water inlet/outlet ports, to thereby form a unit in which a raw gas input pipe path and an ozone gas output pipe path are integrated. The raw gas input pipe path extends from the raw gas supply port through an automatic pressure controller to the ozone generator. The ozone gas output pipe path extends from the ozone generator through a gas filter, an ozone concentration meter, and a flow rate controller, to the ozone gas output port.Type: GrantFiled: July 31, 2014Date of Patent: November 17, 2015Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yujiro Okihara, Yoichiro Tabata, Noriyuki Nakamura, Tetsuya Saitsu, Hatsuo Yotsumoto, Nobuyuki Itoh
-
Patent number: 9114987Abstract: In the present invention, a gas flow rate adjustment apparatus that outputs a raw material gas to an ozone generation apparatus is provided. The gas flow rate adjustment apparatus includes a plurality of flow rate adjustment parts, and outputs a second mixed gas serving as the raw material gas to the ozone generation apparatus. The second mixed gas includes an oxygen gas outputted from a first oxygen flow rate adjustment part and a first mixed gas outputted from a mixed gas flow rate adjustment part. The raw material gas generated by the gas flow rate adjustment apparatus, which includes an oxygen gas and a nitrogen gas, contains the nitrogen gas added to the oxygen gas with the rate of addition being in a range of more than 0 PPM and not more than 100 PPM.Type: GrantFiled: August 30, 2012Date of Patent: August 25, 2015Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yoichiro Tabata, Shinichi Nishimura, Noriyuki Nakamura, Yujiro Okihara
-
Patent number: 9056300Abstract: In the present invention, a gas pipe integrated block has a plurality of internal pipe paths. The plurality of internal pipe paths are connected to an ozone generator, control means, a raw gas supply port, an ozone gas output port, and cooling water inlet/outlet ports, to thereby form a unit in which a raw gas input pipe path and an ozone gas output pipe path are integrated. The raw gas input pipe path extends from the raw gas supply port through an automatic pressure controller to the ozone generator. The ozone gas output pipe path extends from the ozone generator through a gas filter, an ozone concentration meter, and a flow rate controller, to the ozone gas output port.Type: GrantFiled: September 6, 2010Date of Patent: June 16, 2015Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yujiro Okihara, Yoichiro Tabata, Noriyuki Nakamura, Tetsuya Saitsu, Hatsuo Yotsumoto, Nobuyuki Itoh
-
Publication number: 20140341782Abstract: In the present invention, a gas pipe integrated block has a plurality of internal pipe paths. The plurality of internal pipe paths are connected to an ozone generator, control means, a raw gas supply port, an ozone gas output port, and cooling water inlet/outlet ports, to thereby form a unit in which a raw gas input pipe path and an ozone gas output pipe path are integrated. The raw gas input pipe path extends from the raw gas supply port through an automatic pressure controller to the ozone generator. The ozone gas output pipe path extends from the ozone generator through a gas filter, an ozone concentration meter, and a flow rate controller, to the ozone gas output port.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Yujiro Okihara, Yoichiro Tabata, Noriyuki Nakamura, Tetsuya Saitsu, Hatsuo Yotsumoto, Nobuyuki Itoh
-
Publication number: 20140219883Abstract: In the present invention, a gas flow rate adjustment apparatus that outputs a raw material gas to an ozone generation apparatus is provided. The gas flow rate adjustment apparatus includes a plurality of flow rate adjustment parts, and outputs a second mixed gas serving as the raw material gas to the ozone generation apparatus. The second mixed gas includes an oxygen gas outputted from a first oxygen flow rate adjustment part and a first mixed gas outputted from a mixed gas flow rate adjustment part. The raw material gas generated by the gas flow rate adjustment apparatus, which includes an oxygen gas and a nitrogen gas, contains the nitrogen gas added to the oxygen gas with the rate of addition being in a range of more than 0 PPM and not more than 100 PPM.Type: ApplicationFiled: August 30, 2012Publication date: August 7, 2014Applicant: TOSHIBA MITSUBISHI- ELECTRIC INDUSTRIAL SYSTEMS CORPORATION,Inventors: Yoichiro Tabata, Shinichi Nishimura, Noriyuki Nakamura, Yujiro Okihara
-
Patent number: 8778274Abstract: An ozone gas output flow rate management unit configured to receive a plurality of ozone gas outputs from a plurality of ozone generation units and capable of performing an ozone gas output flow rate control for selectively outputting one or a combination of two or more of the plurality of ozone gas outputs to any of a plurality of ozone treatment apparatuses by performing an opening/closing operation of a plurality of ozone gas control valves provided in the ozone gas output flow rate management unit.Type: GrantFiled: September 6, 2010Date of Patent: July 15, 2014Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Noriyuki Nakamura, Yujiro Okihara, Tetsuya Saitsu, Hatsuo Yotsumoto, Yoichiro Tabata, Nobuyuki Itoh
-
Patent number: 8608832Abstract: One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.Type: GrantFiled: April 3, 2013Date of Patent: December 17, 2013Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Tetsuya Saitsu, Yujiro Okihara, Nobuyuki Itoh, Ryohei Ueda, Yasuhiro Tanimura, Koji Ohta
-
Publication number: 20130291718Abstract: One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.Type: ApplicationFiled: April 3, 2013Publication date: November 7, 2013Inventors: Yoichiro TABATA, Tetsuya SAITSU, Yujiro OKIHARA, Nobuyuki ITOH, Ryohei UEDA, Yasuhiro TANIMURA, Koji OHTA
-
Patent number: 8500874Abstract: One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.Type: GrantFiled: November 29, 2006Date of Patent: August 6, 2013Assignee: Toshiba Mitsubishi-Electric Industrial Systems CorporationInventors: Yoichiro Tabata, Tetsuya Saitsu, Yujiro Okihara, Nobuyuki Itoh, Ryohei Ueda, Yasuhiro Tanimura, Koji Ohta
-
Patent number: 8460435Abstract: An apparatus for producing high-concentration ozone gas has a plurality of adsorption/desorption columns and a plurality of valves capable of switching opening/closing of the passage of gas flowing into or out of the adsorption/desorption columns, such that each of the adsorption/desorption columns can performs ozone adsorption processing, evacuation processing or desorption processing. At least two of the adsorption/desorption columns are placed in a serial cycle arrangement to constitute a main adsorption/desorption column group, and one or more of the other adsorption/desorption columns is placed in parallel with the main adsorption/desorption column group to constitute an auxiliary adsorption/desorption column. The auxiliary adsorption/desorption column performs desorption processing during a period in which none of the adsorption/desorption columns of the main adsorption/desorption column group is performing desorption processing.Type: GrantFiled: November 28, 2008Date of Patent: June 11, 2013Assignees: Toshiba Mitsubishi-Electric Industrial Systems Corporation, Mitsubishi Electric CorporationInventors: Yoichiro Tabata, Yujiro Okihara, Tetsuya Saitsu, Noriyuki Nakamura, Ryohei Ueda, Koji Ota, Yasuhiro Tanimura