Patents by Inventor Yuji Asakawa
Yuji Asakawa 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: 11424128Abstract: A substrate etching apparatus for etching a substrate, the substrate etching apparatus includes a treatment container configured to accommodate a substrate, a stage on which the substrate is placed, the stage being disposed in the treatment container, a gas supply configured to supply a treatment gas from an upper space above the stage toward the stage, and a gas exhauster configured to evacuate an interior of the treatment container. The gas supply includes a central region facing a central part of the stage and an outer peripheral region having a same central axis as the central region and configured to surround the central region. The gas supply is capable of supplying the treatment gas to each of the central region and the outer peripheral region.Type: GrantFiled: March 17, 2020Date of Patent: August 23, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Yuji Asakawa, Nobuhiro Takahashi
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Publication number: 20210035823Abstract: A substrate processing device for processing a substrate is provided. The substrate processing device includes: a processing container configured to accommodate a substrate; a placement stage on which the substrate is mounted in the processing container; an exhauster configured to exhaust a processing gas in the processing container; and a partition wall disposed in the processing container and surrounding the placement stage, wherein, inside the partition wall, an exhaust flow path, which communicates with the exhauster, is formed to extend in a vertical direction over an entire circumference of the partition wall, and a plurality of openings, which communicates with a substrate processing space formed inside the partition wall above the placement stage and communicates with the exhaust flow path, is formed at regular intervals in an inner circumferential direction of the partition wall.Type: ApplicationFiled: November 16, 2018Publication date: February 4, 2021Inventors: Yuji ASAKAWA, Manabu AMIKURA
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Publication number: 20200312668Abstract: A substrate etching apparatus for etching a substrate, the substrate etching apparatus includes a treatment container configured to accommodate a substrate, a stage on which the substrate is placed, the stage being disposed in the treatment container, a gas supply configured to supply a treatment gas from an upper space above the stage toward the stage, and a gas exhauster configured to evacuate an interior of the treatment container. The gas supply includes a central region facing a central part of the stage and an outer peripheral region having a same central axis as the central region and configured to surround the central region. The gas supply is capable of supplying the treatment gas to each of the central region and the outer peripheral region.Type: ApplicationFiled: March 17, 2020Publication date: October 1, 2020Inventors: Yuji ASAKAWA, Nobuhiro TAKAHASHI
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Publication number: 20200203194Abstract: A cylindrical inner wall used in a substrate processing apparatus and surrounding a stage on which a substrate is placed, with a gap between the inner wall and an outer periphery of the stage. The inner wall includes a plurality of slits formed in a lower end of the inner wall, and a plurality of grooves formed in the inner surface of the inner wall to extend from an upper end to the lower end of the inner wall so as to communicate with the slits.Type: ApplicationFiled: August 13, 2018Publication date: June 25, 2020Inventors: Yuji ASAKAWA, Atsushi TANAKA, Hiroyuki OGAWA
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Patent number: 9896357Abstract: Provided is an electrodeionization apparatus for producing deionized water, capable of removing or reducing a biased flow of electric current in a deionization chamber. In the electrodeionization apparatus for producing deionized water, at least one deionization treatment unit including the deionization chamber and a pair of concentration chambers adjacent to both sides of the deionization chamber is disposed between a cathode and an anode. In the deionization chamber, anion exchanger layers and cation exchanger layers are stacked in an order in which a last ion exchanger layer through which water to be treated passes is an anion exchanger layer. A bipolar membrane is formed on the cathode side of the anion exchanger layer in the deionization chamber. The anion exchange membrane of the bipolar membrane is in contact with the anion exchanger layer.Type: GrantFiled: August 1, 2012Date of Patent: February 20, 2018Assignee: ORGANO CORPORATIONInventors: Naho Ikeda, Yuji Asakawa, Keisuke Sasaki, Kazuya Hasegawa
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Patent number: 9490151Abstract: A substrate processing apparatus performs a predetermined process on a substrate by using a processing gas under a vacuum atmosphere. The substrate processing apparatus includes a chamber configured to accommodate the substrate and to be kept in the vacuum atmosphere; a substrate mounting table configured to mount the substrate thereon in the chamber; a gas introduction member configured to introduce a gas including the processing gas in the chamber; a partition wall member provided to be movable up and down in the chamber and configured to form a partition wall that defines a processing space in a region including the substrate above the substrate mounting table; and an elevating mechanism configured to move the partition wall member up and down.Type: GrantFiled: July 24, 2015Date of Patent: November 8, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Yuji Asakawa, Yohei Midorikawa, Satoshi Toda, Hiroyuki Takahashi
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Publication number: 20160027672Abstract: A substrate processing apparatus performs a predetermined process on a substrate by using a processing gas under a vacuum atmosphere. The substrate processing apparatus includes a chamber configured to accommodate the substrate and to be kept in the vacuum atmosphere; a substrate mounting table configured to mount the substrate thereon in the chamber; a gas introduction member configured to introduce a gas including the processing gas in the chamber; a partition wall member provided to be movable up and down in the chamber and configured to form a partition wall that defines a processing space in a region including the substrate above the substrate mounting table; and an elevating mechanism configured to move the partition wall member up and down.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Inventors: Yuji ASAKAWA, Yohei MIDORIKAWA, Satoshi TODA, Hiroyuki TAKAHASHI
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Patent number: 8871073Abstract: An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.Type: GrantFiled: May 20, 2011Date of Patent: October 28, 2014Assignee: Organo CorporationInventors: Kazuya Hasegawa, Yuji Asakawa, Keisuke Sasaki
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Publication number: 20140202867Abstract: Provided is an electrodeionization apparatus for producing deionized water, capable of removing or reducing a biased flow of electric current in a deionization chamber. In the electrodeionization apparatus for producing deionized water, at least one deionization treatment unit including the deionization chamber and a pair of concentration chambers adjacent to both sides of the deionization chamber is disposed between a cathode and an anode. In the deionization chamber, anion exchanger layers and cation exchanger layers are stacked in an order in which a last ion exchanger layer through which water to be treated passes is an anion exchanger layer. A bipolar membrane is formed on the cathode side of the anion exchanger layer in the deionization chamber. The anion exchange membrane of the bipolar membrane is in contact with the anion exchanger layer.Type: ApplicationFiled: August 1, 2012Publication date: July 24, 2014Applicant: ORGANO CORPORATIONInventors: Naho Ikeda, Yuji Asakawa, Keisuke Sasaki, Kazuya Hasegawa
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Publication number: 20130068624Abstract: An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C1 and C2 placed adjacent to deionization chamber D on opposite sides thereof and those concentration chambers are filled with anion exchangers. The deionization chamber D is partitioned by an ion exchange membrane into first small deionization chamber D-1 adjacent to concentration chamber C1 and second small deionization chamber D-2 adjacent to concentration chamber C2. First small deionization chamber D-1 is filled with an anion exchanger. Second small deionization chamber D-2 is filled with an anion exchanger and a cation exchanger in a sequence such that the ion exchanger, through which water that is to be treated finally passes, is the anion exchanger.Type: ApplicationFiled: May 20, 2011Publication date: March 21, 2013Applicant: ORGANO CORPORATIONInventors: Kazuya Hasegawa, Yuji Asakawa, Keisuke Sasaki
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Patent number: 7701236Abstract: A prove apparatus includes a first and a second loading port for mounting therein two carriers facing each other, a wafer transfer mechanism having a rotation center between the loading ports, and a first and a second inspection unit being symmetrical to each other and disposed in accordance with the arrangement of the loading ports. In this configuration, wafers are directly transferred between the carrier and a wafer chuck of the inspection unit by the wafer transfer mechanism. The wafer transfer mechanism has three arms for unloading two wafers from the carrier. The prove apparatus has a compact size and achieves a high throughput.Type: GrantFiled: May 14, 2008Date of Patent: April 20, 2010Assignee: Tokyo Electron LimitedInventors: Shuji Akiyama, Tadashi Obikane, Masaru Suzuki, Yasuhito Yamamoto, Kazuya Yano, Yuji Asakawa, Kazumi Yamagata, Shigeki Nakamura, Eiichi Matsuzawa, Kazuhiro Ozawa, Fumito Kagami, Shinji Kojima
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Publication number: 20080290886Abstract: A prove apparatus includes a first and a second loading port for mounting therein two carriers facing each other, a wafer transfer mechanism having a rotation center between the loading ports, and a first and a second inspection unit being symmetrical to each other and disposed in accordance with the arrangement of the loading ports. In this configuration, wafers are directly transferred between the carrier and a wafer chuck of the inspection unit by the wafer transfer mechanism. The wafer transfer mechanism has three arms for unloading two wafers from the carrier. The prove apparatus has a compact size and achieves a high throughput.Type: ApplicationFiled: May 14, 2008Publication date: November 27, 2008Applicant: TOKYO ELECTRON LIMITEDInventors: Shuji Akiyama, Tadashi Obikane, Masaru Suzuki, Yasuhito Yamamoto, Kazuya Yano, Yuji Asakawa, Kazumi Yamagata, Shigeki Nakamura, Eiichi Matsuzawa, Kazuhiro Ozawa, Fumito Kagami, Shinji Kojima
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Patent number: 7326349Abstract: After passing alcoholic liquors 20 through an HSO3 type strongly basic anion exchange resin layer 14, or after adding an HSO3 salt to alcoholic liquors; the alcoholic liquors are passed through a mixed bed layer 18 containing of an H type strongly acidic cation exchange resin and a free base type weakly basic anion exchange resin, or the alcoholic liquors are successively passed through an H type strongly acidic cation exchange resin layer and a free base type weakly basic anion exchange resin layer. According to this way, it is possible to remove aldehydes and inorganic salts from alcoholic liquors such as brewed alcoholic liquors and distilled alcoholic liquors, while strongly retaining a peculiar fragrance or retaining a manneristic flavor.Type: GrantFiled: September 16, 2004Date of Patent: February 5, 2008Assignee: Organo CorporationInventor: Yuji Asakawa
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Publication number: 20060292262Abstract: After passing alcoholic liquors 20 through an HSO3 type strongly basic anion exchange resin layer 14, or after adding an HSO3 salt to alcoholic liquors; the alcoholic liquors are passed through a mixed bed layer 18 containing of an H type strongly acidic cation exchange resin and a free base type weakly basic anion exchange resin, or the alcoholic liquors are successively passed through an H type strongly acidic cation exchange resin layer and a free base type weakly basic anion exchange resin layer. According to this way, it is possible to remove aldehydes and inorganic salts from alcoholic liquors such as brewed alcoholic liquors and distilled alcoholic liquors, while strongly retaining a peculiar fragrance or retaining a manneristic flavor.Type: ApplicationFiled: September 16, 2004Publication date: December 28, 2006Inventor: Yuji Asakawa
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Patent number: 6642350Abstract: A container made of, e.g., polyethylene terephthalate is pulverized and decomposed in the presence of a catalyst by the use of a solvent such as an alcohol or glycol to obtain crude bishydroxyalkyl terephthalate. This crude bishydroxyalkyl terephthalate is then purified by filtration, a treatment with activated carbon, and a treatment with ion-exchange resins. The bishydroxyalkyl terephthalate thus obtained is condensed to produce a container or the like made of polyethylene terephthalate.Type: GrantFiled: April 26, 2002Date of Patent: November 4, 2003Assignees: Organo Corporation, Aies Co., Ltd.Inventors: Yuji Asakawa, Shin Asano
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Patent number: 6508939Abstract: By passing an alkali regenerating agent A through a basic anion exchange resin (3), and through a strongly acidic cation exchange resin (4), the basic anion exchange resin can be regenerated while amphoteric organic materials such as the amino acids captured at the strongly acidic cation exchange resin can be desorbed. Then, an acid regenerating agent B is passed through the strongly acidic cation exchange resin to regenerate the strongly acidic cation exchange resin.Type: GrantFiled: October 22, 2001Date of Patent: January 21, 2003Assignee: Organo CorporationInventor: Yuji Asakawa
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Publication number: 20020058715Abstract: By passing an alkali regenerating agent A through a basic anion exchange resin (3), and through a strongly acidic cation exchange resin (4), the basic anion exchange resin can be regenerated while amphoteric organic materials such as the amino acids captured at the strongly acidic cation exchange resin can be desorbed. Then, an acid regenerating agent B is passed through the strongly acidic cation exchange resin to regenerate the strongly acidic cation exchange resin.Type: ApplicationFiled: October 22, 2001Publication date: May 16, 2002Inventor: Yuji Asakawa
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Patent number: 6362240Abstract: By passing an alkali regenerating agent A through a basic anion exchange resin (3), and through a strongly acidic cation exchange resin (4), the basic anion exchange resin can be regenerated while amphoteric organic materials such as the amino acids captured at the strongly acidic cation exchange resin can be desorbed. Then, an acid regenerating agent B is passed through the strongly acidic cation exchange resin to regenerate the strongly acidic cation exchange resin.Type: GrantFiled: December 19, 2000Date of Patent: March 26, 2002Assignee: Organo CorporationInventor: Yuji Asakawa
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Publication number: 20010006985Abstract: By passing an alkali regenerating agent A through a basic anion exchange resin (3), and through a strongly acidic cation exchange resin (4), the basic anion exchange resin can be regenerated while amphoteric organic materials such as the amino acids captured at the strongly acidic cation exchange resin can be desorbed. Then, an acid regenerating agent B is passed through the strongly acidic cation exchange resin to regenerate the strongly acidic cation exchange resin.Type: ApplicationFiled: December 19, 2000Publication date: July 5, 2001Inventor: Yuji Asakawa