Patents by Inventor Kenichi Asakawa
Kenichi 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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Publication number: 20240084715Abstract: A turbine includes a turbine wheel, a housing having a flow path for a gas, a variable geometry device to guide the gas from the flow path to the turbine wheel, and a biasing member. The variable geometry device includes one or more nozzle vane member, each having a nozzle vane, a nozzle shaft and a nozzle link plate. The biasing member is in contact with the nozzle link plate of the nozzle vane member, to urge the nozzle vane member against a contact surface of the turbine.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Kenichi SEGAWA, Hayato SHIBAYAMA, Takao ASAKAWA, Kengo IKEDA, Naotoshi SHIMIZU, Taiki YOSHIZAKI, Ryosuke MIYAO
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Patent number: 9599224Abstract: There are provided a shell of a pressure-resistant container that is made of ceramics, is used for a pressure-resistant container formed with a through hole, and can be made higher in strength and lighter in weight, as well as to provide a pressure-resistant container and an exploratory apparatus. A shell of a pressure-resistant container includes a shell portion and a thick-walled portion. The shell portion is made of ceramics and has a convexly-curved surface. The thick-walled portion is made of ceramics, continues into the shell portion, is larger in thickness than the shell portion, and has a through hole penetrating through the thick-walled portion in a thickness direction thereof.Type: GrantFiled: March 29, 2011Date of Patent: March 21, 2017Assignees: KYOCERA CORPORATION, Japan Agency For Marine-Earth Science & TechnologyInventors: Kenichi Asakawa, Tadahiro Hyakudome, Masao Yoshida
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Patent number: 9403584Abstract: There are provide a pressure-resistant container which is less likely to be damaged due to stress concentration even in deep seas of 1000 m or deeper below sea level, and an exploration machine provided with the same. A pressure-resistant container includes a cylindrical first outer shell member; and substantially hemispherical second outer shell members which are respectively connected to both ends of the first outer shell member, and is constructed by selecting materials so that a Young's modulus E2 of a base material which constitutes the second outer shell members is smaller than a Young's modulus E1 of a base material which constitutes the first outer shell member.Type: GrantFiled: May 20, 2013Date of Patent: August 2, 2016Assignee: KYOCERA CorporationInventors: Masao Yoshida, Naoyuki Ookubo, Kenichi Asakawa, Yosaku Maeda
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Publication number: 20150314845Abstract: There are provide a pressure-resistant container which is less likely to be damaged due to stress concentration even in deep seas of 1000 m or deeper below sea level, and an exploration machine provided with the same. A pressure-resistant container includes a cylindrical first outer shell member; and substantially hemispherical second outer shell members which are respectively connected to both ends of the first outer shell member, and is constructed by selecting materials so that a Young's modulus E2 of a base material which constitutes the second outer shell members is smaller than a Young's modulus E1 of a base material which constitutes the first outer shell member.Type: ApplicationFiled: May 20, 2013Publication date: November 5, 2015Inventors: Masao YOSHIDA, Naoyuki OOKUBO, Kenichi ASAKAWA, Yosaku MAEDA
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Publication number: 20130026172Abstract: There are provided a shell of a pressure-resistant container that is made of ceramics, is used for a pressure-resistant container formed with a through hole, and can be made higher in strength and lighter in weight, as well as to provide a pressure-resistant container and an exploratory apparatus. A shell of a pressure-resistant container includes a shell portion and a thick-walled portion. The shell portion is made of ceramics and has a convexly-curved surface. The thick-walled portion is made of ceramics, continues into the shell portion, is larger in thickness than the shell portion, and has a through hole penetrating through the thick-walled portion in a thickness direction thereof.Type: ApplicationFiled: March 29, 2011Publication date: January 31, 2013Applicant: KYOCERA CORPORATIONInventors: Kenichi Asakawa, Tadahiro Hyakudome, Masao Yoshida
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Publication number: 20110024431Abstract: A pressure container having improved reliability of pressure-resistant performance and sealing performance at a connecting portion between outer shells, and a buoyant body and an exploratory apparatus provided therewith. a pressure container includes a semispherical first outer shell made of ceramics, a semispherical second outer shell made of ceramics, a straight cylindrical third outer shell made of ceramics, and annular first and second connecting bodies interposed between the first outer shell and the third outer shell and between the second outer shell and the third outer shell, and made of materials at least one of which has an elastic modulus smaller than those of the first to the third outer shells.Type: ApplicationFiled: March 18, 2009Publication date: February 3, 2011Applicant: KYOCERA CORPORATIONInventors: Yusuke Yano, Kenichi Asakawa, Masao Yoshida
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Publication number: 20100222394Abstract: The present invention provides a more efficient industrial method for producing a pyrazol-3-yl-benzamide derivative expressed by a formula useful as medicine: wherein R2, R3 and R4 each independently represent a lower alkyl group.Type: ApplicationFiled: September 25, 2008Publication date: September 2, 2010Inventors: Kenichi Asakawa, Naotaka Sawada, Takayuki Tsuritani, Toshiaki Mase, Keiji Takahashi, Takahiro Itoh, Feng Xu, Naoki Yoshikawa
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Patent number: 7539413Abstract: The present invention discloses a submarine observation system in which a plurality of carrier lights assigned to each submarine observation equipment is transmitted from a land terminal apparatus to an optical submarine cable (down-going) by using a WDM transmission. In the submarine observation equipment, only a prescribed carrier light is demultiplexed by an optical demultiplexer, an observation signal indicating an observation result is generated by an observation device, intensity of the carrier light demultiplexed by the optical demultiplexer is modulated by an optical amplifier based on an observation signal, and the modulated carrier light is multiplexed by an optical multiplexer. The multiplexed carrier light is output to the optical submarine cable (up-going) to be returned to the land terminal apparatus being the transmission station.Type: GrantFiled: March 14, 2005Date of Patent: May 26, 2009Assignees: Mitsubishi Denki Kabushiki Kaisha, Independent Administrative Institution, Japan Agency for Marine-Earth Science and TechnologyInventors: Hiroaki Munehira, Junichi Nakagawa, Toshiyuki Tokura, Kenichi Asakawa, Hitoshi Mikada, Katsuyoshi Kawaguchi
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Patent number: 7482449Abstract: This invention relates to a process for making spirolactone compounds analogous to formula I.Type: GrantFiled: March 19, 2008Date of Patent: January 27, 2009Assignees: Merck & Co., Inc., Banyu Pharmaceutical Co., Ltd.Inventors: Ralph P. Volante, David M. Tschaen, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida, Kenji Maeda, Toshihiro Wada, Hiroki Sato, Kenichi Asakawa
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Patent number: 7437070Abstract: In each of a plurality of submarine observation apparatus (1 to n), a branching unit (63) branches fixed-wavelength light (?1) from an incoming wavelength-multiplexed light signal. An observation signal modulating unit (64) modulates the intensity of the branched fixed-wavelength light (?1) with observation information multiplexed by an observation signal multiplex unit (61). A combining unit (65) combines light signals (?2) to (?n) passing through the branching unit (63) and the fixed-wavelength light (?1a) modulated by the observation signal modulating unit (64) into a composite light signal, and outputs it to an optical fiber (12a). Therefore, in each of the plurality of submarine observation apparatus (1 to n), there is no necessity for providing a wavelength-division-multiplexing-transmission optical transmitter which requires high wavelength stability.Type: GrantFiled: February 18, 2005Date of Patent: October 14, 2008Assignees: Mitsubishi Denki Kabushiki Kaisha, Japan Agency for Marine-Earth Science and TechnologyInventors: Tasuku Fujieda, Hideki Goto, Kenichi Asakawa, Hitoshi Mikada, Katsuyoshi Kawaguchi
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Publication number: 20080171888Abstract: This invention relates to a process for making spirolactone compounds analogous to formula I.Type: ApplicationFiled: March 19, 2008Publication date: July 17, 2008Inventors: Ralph P. Volante, David M. Tschaen, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida, Kenji Maeda, Toshihiro Wada, Hiroki Sato, Kenichi Asakawa
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Patent number: 7368569Abstract: This invention relates to a process for making spirolactone compounds analogous to formula IType: GrantFiled: October 14, 2003Date of Patent: May 6, 2008Assignees: Merck & Co., Inc., Banyu Pharmaceutical Co., Ltd.Inventors: Ralph P. Volante, David M. Tschaen, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida, Kenji Maeda, Toshihiro Wada, Hiroki Sato, Kenichi Asakawa
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Patent number: 7276811Abstract: A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.Type: GrantFiled: November 29, 2006Date of Patent: October 2, 2007Assignees: NEC Corporation, Independent Administrative Intitiution, Japan Agency for Marine-Earth Science and TechnologyInventors: Jun Muramatsu, Kenichi Asakawa, Katsuyoshi Kawaguchi
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Publication number: 20070069588Abstract: A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.Type: ApplicationFiled: November 29, 2006Publication date: March 29, 2007Inventors: Jun Muramatsu, Kenichi Asakawa, Katsuyoshi Kawaguchi
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Patent number: 7166933Abstract: A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces a second constant current by using the first constant current. The second constant current is supplied to the output side while the first constant current is returned to the input side. Because the input side and the output side are isolated, it is easy to add/remove the device to/from a submarine power feeding system. Intensity of the second constant current can be controlled by controlling duty ratios of switches included in the converter. Thus, it is possible that the intensity of the second constant current is equal to that of the first constant current. Therefore, a submarine repeater can be provided along either the trunk cable or the branch cable.Type: GrantFiled: October 20, 2003Date of Patent: January 23, 2007Assignees: NEC Corporation, Independent Administrative Institution Japan Agency for Marine-Earth Science and TechnologyInventors: Jun Muramatsu, Kenichi Asakawa, Katsuyoshi Kawaguchi
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Patent number: 7102257Abstract: A submarine cable power feeding system includes N (N is an integer of 2 or larger) main submarine cables extending from the land in the offshore direction, N-stage (N is an integer of 2 or larger) submarine feed branching devices, and first to Nth (N is an integer of 2 or larger) sub submarine cables. Each submarine feed branching device is connected to the main submarine cable to receive constant-voltage power from a constant-voltage feed unit. Each sub submarine cable connects the Nth-stage submarine feed branching device, connected to the Nth main submarine cable, to the adjacent submarine feed branching device through submarine repeaters, thereby receiving power from a constant-current feed unit. Each constant-current feed unit is built in the submarine feed branching device. The submarine feed branching devices and the submarine repeaters are arranged in a matrix on a plane.Type: GrantFiled: February 13, 2003Date of Patent: September 5, 2006Assignees: NEC Corporation, Japan Marine Science and Technology CenterInventors: Jun Muramatsu, Katsuyoshi Kawaguchi, Kenichi Asakawa
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Publication number: 20060014950Abstract: This invention relates to a process for making spirolactone compounds analogous to formula I.Type: ApplicationFiled: October 14, 2003Publication date: January 19, 2006Inventors: Ralph Volante, David Tschaen, Steven Weissman, Mathew Heileman, Toshiaki Mase, Takehiko Iida, Kenji Maeda, Toshihiro Wada, Hiroki Sato, Kenichi Asakawa
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Publication number: 20060014815Abstract: This invention relates to a process for making pyrazole compounds of formula I.Type: ApplicationFiled: October 22, 2003Publication date: January 19, 2006Inventors: Toshiaki Mase, Takehiko Iida, Masashi Kawasaki, Kenichi Asakawa
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Publication number: 20050259998Abstract: In each of a plurality of submarine observation apparatus (1 to n), a branching unit (63) branches fixed-wavelength light (?1) from an incoming wavelength-multiplexed light signal. An observation signal modulating unit (64) modulates the intensity of the branched fixed-wavelength light (?1) with observation information multiplexed by an observation signal multiplex unit (61). A combiningunit (65) combines lightsignals (?2) to (?n) passing through the branching unit (63) and the fixed-wavelength light (?1a) modulated by the observation signal modulating unit (64) into a composite light signal, and outputs it to an optical fiber (12a). Therefore, in each of the plurality of submarine observation apparatus (1 to n), there is no necessity for providing a wavelength-division-multiplexing-transmission optical transmitter which requires high wavelength stability.Type: ApplicationFiled: February 18, 2005Publication date: November 24, 2005Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA, Japan Agency for Marine-Earth Science and Tech.Inventors: Tasuku Fujieda, Hideki Goto, Kenichi Asakawa, Hitoshi Mikada, Katsuyoshi Kawaguchi
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Publication number: 20050259264Abstract: The present invention discloses a submarine observation system in which a plurality of carrier lights assigned to each submarine observation equipment is transmitted from a land terminal apparatus to an optical submarine cable (down-going) by using a WDM transmission. In the submarine observation equipment, only a prescribed carrier light is demultiplexed by an optical demultiplexer, an observation signal indicating an observation result is generated by an observation device, intensity of the carrier light demultiplexed by the optical demultiplexer is modulated by an optical amplifier based on an observation signal, and the modulated carrier light is multiplexed by an optical multiplexer. The multiplexed carrier light is output to the optical submarine cable (up-going) to be returned to the land terminal apparatus being the transmission station.Type: ApplicationFiled: March 14, 2005Publication date: November 24, 2005Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA, Japan Agency for Marine-Earth Science and Tech.Inventors: Hiroaki Munehira, Junichi Nakagawa, Toshiyuki Tokura, Kenichi Asakawa, Hitoshi Mikada, Katsuyoshi Kawaguchi