Patents by Inventor Wataru Kugimiya
Wataru Kugimiya 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: 11326780Abstract: A resonant sound absorbing device of a gas turbine combustor includes a plurality of resonance chambers independently disposed side by side in an axial direction of the gas turbine combustor so as to communicate with a gas passage of the gas turbine combustor via acoustic holes. The plurality of resonance chambers include n related resonance chambers each satisfying: 0.9 × ? i = 1 n ? F i n ? F i ? 1.1 × ? i = 1 n ? F i n ( A ) where n is an integer of 2 or more, and Fi is a peak frequency corresponding to a maximum sound absorbing ratio of the ith related resonance chamber of the n related resonance chambers.Type: GrantFiled: February 28, 2018Date of Patent: May 10, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Kiyoshi Fujimoto, Taiki Kinoshita, Satoshi Mizukami, Yoshinori Wakita, Satoshi Takiguchi, Wataru Kugimiya
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Patent number: 10844792Abstract: To provide a damping device that includes an acoustic liner that forms an acoustic-liner resonant space along an outer periphery of a combustion chamber in which a combustion gas flows, and an acoustic damper provided on an outer peripheral side of the acoustic liner, to form an acoustic-damper resonant space that communicates with the acoustic-liner resonant space. The acoustic liner is formed with a damper opening connected with the acoustic damper for causing the acoustic-liner resonant space and the acoustic-damper resonant space to communicate with each other. The acoustic liner includes a divided portion that is a portion to be divided in a circumferential direction of the combustion chamber by the damper opening, and a continuous portion that is a portion continuous over the circumferential direction of the combustion chamber.Type: GrantFiled: February 23, 2015Date of Patent: November 24, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Wataru Kugimiya, Keisuke Matsuyama, Isao Taguchi, Kiyoshi Fujimoto
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Patent number: 10712004Abstract: A combustor includes: a combustion liner having a first region in which at least one first opening is formed; a nozzle configured to inject a fuel into the combustion liner; and a first acoustic device mounted to the combustion liner. The first acoustic device includes: a first casing portion having at least one first wall disposed facing the first region on an outer side of the combustion liner and at least one second opening formed thereon. The first casing portion defining at least one first space in communication with an inside of the combustion liner through the first opening; and a second casing portion having at least one second wall disposed facing the first wall on an outer side of the first casing portion. The second casing portion defines, between the first wall and the second wall, a second space in communication with the first space through the second opening.Type: GrantFiled: July 6, 2016Date of Patent: July 14, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Wataru Kugimiya, Taiki Kinoshita, Atsushi Koyama
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Publication number: 20190368730Abstract: A resonant sound absorbing device of a gas turbine combustor includes a plurality of resonance chambers independently disposed side by side in an axial direction of the gas turbine combustor so as to communicate with a gas passage of the gas turbine combustor via acoustic holes. The plurality of resonance chambers include n related resonance chambers each satisfying: 0.9 × ? i = 1 n ? F i n ? F i ? 1.1 × ? i = 1 n ? F i n ( A ) where n is an integer of 2 or more, and Fi is a peak frequency corresponding to a maximum sound absorbing ratio of the ith related resonance chamber of the n related resonance chambers.Type: ApplicationFiled: February 28, 2018Publication date: December 5, 2019Inventors: Kiyoshi FUJIMOTO, Taiki KINOSHITA, Satoshi MIZUKAMI, Yoshinori WAKITA, Satoshi TAKIGUCHI, Wataru KUGIMIYA
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Publication number: 20180180288Abstract: A combustor includes: a combustion liner having a first region in which at least one first opening is formed; a nozzle configured to inject a fuel into the combustion liner; and a first acoustic device mounted to the combustion liner. The first acoustic device includes: a first casing portion having at least one first wall disposed facing the first region on an outer side of the combustion liner and at least one second opening formed thereon. The first casing portion defining at least one first space in communication with an inside of the combustion liner through the first opening; and a second casing portion having at least one second wall disposed facing the first wall on an outer side of the first casing portion. The second casing portion defines, between the first wall and the second wall, a second space in communication with the first space through the second opening.Type: ApplicationFiled: July 6, 2016Publication date: June 28, 2018Inventors: Wataru KUGIMIYA, Taiki KINOSHITA, Atsushi KOYAMA
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Publication number: 20180038282Abstract: To provide a damping device that includes an acoustic liner that forms an acoustic-liner resonant space along an outer periphery of a combustion chamber in which a combustion gas flows, and an acoustic damper provided on an outer peripheral side of the acoustic liner, to form an acoustic-damper resonant space that communicates with the acoustic-liner resonant space. The acoustic liner is formed with a damper opening connected with the acoustic damper for causing the acoustic-liner resonant space and the acoustic-damper resonant space to communicate with each other. The acoustic liner includes a divided portion that is a portion to be divided in a circumferential direction of the combustion chamber by the damper opening, and a continuous portion that is a portion continuous over the circumferential direction of the combustion chamber.Type: ApplicationFiled: February 23, 2015Publication date: February 8, 2018Inventors: Wataru KUGIMIYA, Keisuke MATSUYAMA, Isao TAGUCHI, Kiyoshi FUJIMOTO
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Patent number: 9500132Abstract: A combustor seal structure includes a first recess portion and a second recess portion that are provided on opposing faces in adjacent flange portions of a transition piece; a seal member body disposed across the first recess portion and the second recess portion; a first projection portion and a second projection portion 64 that are provided at each end portion in the width direction of the seal member body and are capable of being in contact with a first seal face of the first recess portion and a second seal face of the second recess portion; a first spring member whose base end portion is connected to one end portion in the width direction of the seal member body and whose distal end portion extends to the other end portion and is capable of being in contact with a second pressing face.Type: GrantFiled: February 11, 2014Date of Patent: November 22, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Wataru Kugimiya, Hiroaki Kishida, Kiyoshi Fujimoto
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Publication number: 20140225334Abstract: A combustor seal structure includes a first recess portion and a second recess portion that are provided on opposing faces in adjacent flange portions of a transition piece; a seal member body disposed across the first recess portion and the second recess portion; a first projection portion and a second projection portion 64 that are provided at each end portion in the width direction of the seal member body and are capable of being in contact with a first seal face of the first recess portion and a second seal face of the second recess portion; a first spring member whose base end portion is connected to one end portion in the width direction of the seal member body and whose distal end portion extends to the other end portion and is capable of being in contact with a second pressing face.Type: ApplicationFiled: February 11, 2014Publication date: August 14, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Wataru Kugimiya, Hiroaki Kishida, Kiyoshi Fujimoto
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Publication number: 20090306353Abstract: The present invention is to provide a method for obtaining more efficiently isolated-soy protein, which has excellent gelation properties and shows neither bitterness nor astringency characteristic to soybean, while reducing the amount of water used in a soy protein manufacturing plant and thus lessening burden on the environment owing to the reduction in discharged water. It is a method for producing isolated-soy protein, including: an acid-washing step of washing defatted soybeans with an aqueous medium in a region of pH 3.0 to 5.0 to extract and remove whey components; an extraction step of extracting protein from acid-washed soybean slurry obtained in the acid-washing step with an aqueous medium in a neutral to alkaline region and then removing an extraction residue; and an isolation step of separating the extract solution obtained in the extraction step into water and protein while holding it in the neutral to alkaline region.Type: ApplicationFiled: August 13, 2009Publication date: December 10, 2009Inventors: Xinqi Liu, Kazunobu Tsumura, Wataru Kugimiya, Ryotaro Sato, Yutaka Saito, Masahiko Samoto
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Patent number: 7465470Abstract: It is intended to provide a soybean protein material which is excellent in solubility, stability, emulsifying properties and gel-forming properties under acidic conditions and thus advantageously usable in acidic foods, its production process, and acidic foods using the soybean protein material. A solution containing soybean protein is subjected to a treatment for eliminating or inactivating polyanionic substances contained therein and/or adding a polycationic substance and then heated at above 100° C. under acidic conditions. Thus, a soybean protein having a high solubility under acidic conditions and thus being appropriately usable in acidic foods can be obtained. By using this protein, protein foods in an acidic region can be provided. Further, by combining the above-described treatment with a protease-digestion treatment, a soybean protein hydrolysate having a high solubility in an acidic region can be efficiently obtained.Type: GrantFiled: February 25, 2002Date of Patent: December 16, 2008Assignee: Fuji Oil Company, LimitedInventors: Tsutomo Saito, Keisuke Tsuge, Toshio Kiriyama, Wataru Kugimiya
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Publication number: 20080213428Abstract: Disclosed is a cream cheese-like food which is produced by using a soybean protein as a raw material and which has a creamy-smooth mouthfeel like cream cheese and a good flavor/taste. A cream cheese-like food having a creamy-smooth mouthfeel and a good flavor/taste can be produced readily by previously adjusting the soybean protein material to a pH falling within the neutral to alkaline range before reducing the moisture content of a product by reacting the soybean protein with a protease to prepare a soybean protein hydrolysate.Type: ApplicationFiled: December 14, 2007Publication date: September 4, 2008Inventors: Ryotaro Sato, Wataru Kugimiya
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Publication number: 20050249865Abstract: The present invention is to provide a method for obtaining more efficiently isolated-soy protein, which has excellent gelation properties and shows neither bitterness nor astringency characteristic to soybean, while reducing the amount of water used in a soy protein manufacturing plant and thus lessening burden on the environment owing to the reduction in discharged water. It is a method for producing isolated-soy protein, including: an acid-washing step of washing defatted soybeans with an aqueous medium in a region of pH 3.0 to 5.0 to extract and remove whey components; an extraction step of extracting protein from acid-washed soybean slurry obtained in the acid-washing step with an aqueous medium in a neutral to alkaline region and then removing an extraction residue; and an isolation step of separating the extract solution obtained in the extraction step into water and protein while holding it in the neutral to alkaline region.Type: ApplicationFiled: August 5, 2003Publication date: November 10, 2005Inventors: Xinqi Liu, Kazunobu Tsumura, Wataru Kugimiya, Ryotaro Sato, Yutaka Saito, Masahiko Samoto
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Publication number: 20040086624Abstract: It is intended to provide a soybean protein material which is excellent in solubility, stability, emulsifying properties and gel-forming properties under acidic conditions and thus advantageously usable in acidic foods, its production process, and acidic foods using the soybean protein material. A solution containing soybean protein is subjected to a treatment for eliminating or inactivating polyanionic substances contained therein and/or adding a polycationic substance and then heated at above 100° C. under acidic conditions. Thus, a soybean protein having a high solubility under acidic conditions and thus being appropriately usable in acidic foods can be obtained. By using this protein, protein foods in an acidic region can be provided. Further, by combining the above-described treatment with a protease-digestion treatment, a soybean protein hydrolysate having a high solubility in an acidic region can be efficiently obtained.Type: ApplicationFiled: August 28, 2003Publication date: May 6, 2004Inventors: Tsutomu Saito, Keisuke Tsuge, Toshio Kiriyama, Wataru Kugimiya
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Patent number: 6638562Abstract: A method for fractionation of soybean protein into a 7S globulin-rich fraction and an 11S globulin-rich fraction which comprises treating a soybean protein-containing solution with an enzyme or an enzyme preparation having an activity of decomposing phytic acid to thereby separate into a soluble fraction and an insoluble fraction at a specific pH value.Type: GrantFiled: August 24, 2001Date of Patent: October 28, 2003Assignee: Fuji Oil Company LimitedInventors: Tsutomu Saitoh, Kazunobu Tsumura, Wataru Kugimiya, Mitsutaka Kohno
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Patent number: 6303178Abstract: A polypeptide composition obtained by independently hydrolyzing 7S component (&bgr;-conglycinin) and 11S component (glycinin) of soybean protein is shown. The polypeptide composition contains hydrolysates of both 7S and 11S components which has good emulsifying and whipping capabilities and is useful for the production of food products including ices, meringues, spread pastes, beverages, farinaceous products, etc.Type: GrantFiled: July 28, 1999Date of Patent: October 16, 2001Assignee: Fuji Oil Company, LimitedInventors: Kazunobu Tsumura, Yasushi Nakamura, Wataru Kugimiya, Tatsumi Miyazaki, Koichi Kuramori, Kumiko Hoshino, Rie Takee
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Patent number: 6126973Abstract: The present invention provides a soy protein hydrolysate with a low content of .beta.-conglycinin and a process for producing the same. The soy protein hydrolysate with a low content of .beta.-conglycinin is prepared by allowing a proteolytic enzyme to act on soybean protein to selectively decompose .beta.-conglycinin in the soybean protein, and the process for producing the same comprises allowing a proteolytic enzyme to act on soybean protein at a temperature of higher than 50.degree. C. to less than 90.degree. C., preferably 55 to 85.degree. C., more preferably 60 to 80.degree. C.Type: GrantFiled: March 27, 1997Date of Patent: October 3, 2000Assignee: Fuji Oil Company LimitedInventors: Kazunobu Tsumura, Wataru Kugimiya, Kumiko Hoshino, Tohru Kudo
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Patent number: 6022702Abstract: The present invention provides a soy protein hydrolysate with a low content of glycinin wherein glycinin as a major component in soybean protein is selectively decomposed and a process for producing the same. The soy protein hydrolysate with a low content glycinin is obtained by allowing a proteolytic enzyme to act on soy protein to selectively decompose glycinin in the soybean protein, and the process for producing a soy protein hydrolysate with a low content of glycinin comprises allowing a proteolytic enzyme to act on soy protein at pH 1.0 to 2.8, preferably pH 1.5 to 2.5.Type: GrantFiled: March 27, 1997Date of Patent: February 8, 2000Assignee: Fuji Oil Company LimitedInventors: Kazunobu Tsumura, Wataru Kugimiya, Kumiko Hoshino