Patents by Inventor Junichiro Masada
Junichiro Masada 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: 11155910Abstract: Provided is a high-strength, heat-resistant, Ni-base alloy comprising Co: from 5 to 12%, Cr: from 5 to 12%, Mo: from 0.5 to 3.0%, W: from 3.0 to 6.0%, Al: from 5.5 to 7.2%, Ti: from 1.0 to 3.0%, Ta: from 1.5 to 6.0%, Re: from 0 to 2.0%, and C: from 0.01 to 0.20%. The high-strength, heat-resistant, Ni-base alloy is constituted of a Ni-based alloy, the balance of the Ni-based alloy comprising Ni and inevitable impurities. The density of the high-strength, heat-resistant Ni-base alloy is less than 8.5 g/cm3.Type: GrantFiled: November 22, 2019Date of Patent: October 26, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Masaki Taneike, Ikuo Okada, Kazumasa Takata, Junichiro Masada, Keizo Tsukagoshi, Hiroyuki Yamazaki, Yoshiaki Nishimura, Shinya Ishikawa
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Patent number: 10670039Abstract: A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial flow passage that provides communication between the axial communication cavity of the downstream-side cavity group and the axial communication cavity of an upstream-side cavity group; another radial flow passage that provides communication between the axial communication cavity and the outer cavity of the upstream-side cavity group; and an outlet flow passage through which the gas inside the outer cavity of the upstream-side cavity group flows out into the gas compression flow passage.Type: GrantFiled: April 18, 2016Date of Patent: June 2, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Keita Takamura, Masanori Yuri, Shinya Hashimoto, Junichiro Masada, Yuji Komagome, Masato Araki
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Publication number: 20200087768Abstract: Provided is a high-strength, heat-resistant, Ni-base alloy comprising Co: from 5 to 12%, Cr: from 5 to 12%, Mo: from 0.5 to 3.0%, W: from 3.0 to 6.0%, Al: from 5.5 to 7.2%, Ti: from 1.0 to 3.0%, Ta: from 1.5 to 6.0%, Re: from 0 to 2.0%, and C: from 0.01 to 0.20%. The high-strength, heat-resistant, Ni-base alloy is constituted of a Ni-based alloy, the balance of the Ni-based alloy comprising Ni and inevitable impurities. The density of the high-strength, heat-resistant Ni-base alloy is less than 8.5 g/cm3.Type: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Applicant: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Masaki TANEIKE, Ikuo OKADA, Kazumasa TAKATA, Junichiro MASADA, Keizo TSUKAGOSHI, Hiroyuki YAMAZAKI, Yoshiaki NISHIMURA, Shinya ISHIKAWA
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Patent number: 10352244Abstract: A gas turbine combustor comprising a plurality of cooling air passages (27A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (27A) being disposed in a wall portion (26) side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (27A) are divided via a passage transition groove portion (33) into upstream cooling air passages (27A1) disposed closer to bled pressurized air inlet holes (30a) and downstream cooling air passages (27A2) disposed closer to bled pressurized air outlet holes (30b), and center lines (C1) of the upstream cooling air passages are non-collinear with center lines (C2) of the downstream cooling air passages.Type: GrantFiled: April 25, 2014Date of Patent: July 16, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yoshiaki Yamaguchi, Satoshi Mizukami, Tomoyuki Hirata, Junichiro Masada, Tetsu Konishi, Kazumasa Takata, Hiroyuki Yamazaki, Takuya Suzuki, Shinya Ishikawa
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Patent number: 10309245Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: June 4, 2019Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Patent number: 10247030Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: April 2, 2019Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20180179622Abstract: Provided is a high-strength, heat-resistant, Ni-base alloy comprising Co: from 5 to 12%, Cr: from 5 to 12%, Mo: from 0.5 to 3.0%, W: from 3.0 to 6.0%, Al: from 5.5 to 7.2%, Ti: from 1.0 to 3.0%, Ta: from 1.5 to 6.0%, Re: from 0 to 2.0%, and C: from 0.01 to 0.20%. The high-strength, heat-resistant, Ni-base alloy is constituted of a Ni-based alloy, the balance of the Ni-based alloy comprising Ni and inevitable impurities. The density of the high-strength, heat-resistant Ni-base alloy is less than 8.5 g/cm3.Type: ApplicationFiled: July 5, 2016Publication date: June 28, 2018Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Masaki TANEIKE, Ikuo OKADA, Kazumasa TAKATA, Junichiro MASADA, Keizo TSUKAGOSHI, Hiroyuki YAMAZAKI, Yoshiaki NISHIMURA, Shinya ISHIKAWA
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Patent number: 9989450Abstract: An erosion test apparatus includes a combustor configured to obtain a combustion gas by mixing and combusting compressed air and a fuel, and an erodent supply unit configured to supply an erodent to the combustion gas. The erosion test apparatus further includes an accommodation support unit configured to accommodate and support a test piece having a front surface coated through thermal barrier coating, and an accelerator configured to accelerate the combustion gas including the erodent to collide with the test piece.Type: GrantFiled: November 5, 2015Date of Patent: June 5, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Daisuke Kudo, Taiji Torigoe, Junichiro Masada, Koji Takahashi, Yoshitaka Uemura, Yoshifumi Okajima, Naotoshi Okaya, Eisaku Ito, Masahiko Mega, Shigenari Horie, Shuji Tanigawa, Yasuhiko Tsuru, Keizo Tsukagoshi, Masamitsu Kuwabara
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Patent number: 9951644Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: April 24, 2018Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20180051710Abstract: A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial flow passage that provides communication between the axial communication cavity of the downstream-side cavity group and the axial communication cavity of an upstream-side cavity group; another radial flow passage that provides communication between the axial communication cavity and the outer cavity of the upstream-side cavity group; and an outlet flow passage through which the gas inside the outer cavity of the upstream-side cavity group flows out into the gas compression flow passage.Type: ApplicationFiled: April 18, 2016Publication date: February 22, 2018Inventors: Keita TAKAMURA, Masanori YURI, Shinya HASHIMOTO, Junichiro MASADA, Yuji KOMAGOME, Masato ARAKI
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Patent number: 9816161Abstract: Provided is a Ni-based single crystal superalloy containing 6% by mass or more and 12% by mass or less of Cr, 0.4% by mass or more and 3.0% by mass or less of Mo, 6% by mass or more and 10% by mass or less of W, 4.0% by mass or more and 6.5% by mass or less of Al, 0% by mass or more and 1% by mass or less of Nb, 8% by mass or more and 12% by mass or less of Ta, 0% by mass or more and 0.15% by mass or less of Hf, 0.01% by mass or more and 0.2% by mass or less of Si, and 0% by mass or more and 0.04% by mass or less of Zr, and optionally containing at least one element selected from B, C, Y, La, Ce, and V, with a balance being Ni and inevitable impurities.Type: GrantFiled: July 30, 2013Date of Patent: November 14, 2017Assignees: MITSUBISHI HITACHI POWER SYSTEMS, LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Kyoko Kawagishi, Hiroshi Harada, Tadaharu Yokokawa, Yutaka Koizumi, Toshiharu Kobayashi, Masao Sakamoto, Michinari Yuyama, Masaki Taneike, Ikuo Okada, Sachio Shimohata, Hidetaka Oguma, Ryota Okimoto, Keizo Tsukagoshi, Yoshitaka Uemura, Junichiro Masada, Shunsuke Torii
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Publication number: 20170226620Abstract: A heat shielding coating (11) includes a bond coat layer (12) as a metal coupling layer laminated on a base material (10), and a top coat layer (13) which is laminated on the bond coat layer (12) and includes zirconia-based ceramic, in which the top coat layer (13) has a porosity of 9% or less.Type: ApplicationFiled: November 10, 2015Publication date: August 10, 2017Applicant: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Daisuke KUDO, Taiji TORIGOE, Junichiro MASADA, Koji TAKAHASHI, Yoshitaka UEMURA, Yoshifumi OKAJIMA, Naotoshi OKAYA, Eisaku ITO, Masahiko MEGA, Shigenari HORIE, Shuji TANIGAWA, Yasuhiko TSURU, Keizo TSUKAGOSHI, Masamitsu KUWABARA
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Patent number: 9593588Abstract: An inner wall surface of a low-pressure-side side plate opposite to a lateral surface of a thin plate is formed along a direction crossing an axial direction of a rotating shaft such that a gap between the inner wall surface and the thin plate gradually decreases from a radially inner side toward a radially outer side of the low-pressure-side side plate.Type: GrantFiled: February 21, 2013Date of Patent: March 14, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hitoshi Morimoto, Keizo Tsukagoshi, Junichiro Masada, Tatsuji Takahashi, Masato Araki, Tanehiro Shinohara, Hidekazu Uehara
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Publication number: 20170044981Abstract: A gas turbine combustor comprising a plurality of cooling air passages (27A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (27A) being disposed in a wall portion (26) side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (27A) are divided via a passage transition groove portion (33) into upstream cooling air passages (27A1) disposed closer to bled pressurized air inlet holes (30a) and downstream cooling air passages (27A2) disposed closer to bled pressurized air outlet holes (30b), and center lines (C1) of the upstream cooling air passages are non-collinear with center lines (C2) of the downstream cooling air passages.Type: ApplicationFiled: April 25, 2014Publication date: February 16, 2017Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yoshiaki Yamaguchi, Satoshi Mizukami, Tomoyuki Hirata, Junichiro Masada, Tetsu Konishi, Kazumasa Takata, Hiroyuki Yamazaki, Takuya Suzuki, Shinya Ishikawa
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Patent number: 9512781Abstract: In a cooling structure for a recovery-type air-cooled gas turbine combustor having a recovery-type air-cooling structure that bleeds, upstream of the combustor, and pressurizes compressed air supplied from a compressor, that uses the bled and pressurized air to cool a wall, and that recovers and reuses the bled and pressurized air as combustion air for burning fuel in the combustor together with a main flow of the compressed air, wall cooling in which cooling air is supplied to cooling air passages formed in the wall of the combustor to perform cooling involves a downstream wall region, closer to a turbine, that is cooled using the bled and pressurized air as the cooling air and an upstream wall region, closer to a burner, that is cooled using, as the cooling air, bled compressed air bled from a main flow of the compressed air through a housing inner space.Type: GrantFiled: August 10, 2011Date of Patent: December 6, 2016Assignees: MITSUBISHI HITACHI POWER SYSTEMS, LTD., TOHOKU ELECTRIC POWER CO., INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Shunsuke Torii, Yuya Fukunaga, Tetsu Konishi, Yoshiaki Nishimura, Yoshiaki Igarashi, Shinya Ishikawa
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Publication number: 20160131570Abstract: An erosion test apparatus includes a combustor configured to obtain a combustion gas by mixing and combusting compressed air and a fuel, and an erodent supply unit configured to supply an erodent to the combustion gas. The erosion test apparatus further includes an accommodation support unit configured to accommodate and support a test piece having a front surface coated through thermal barrier coating, and an accelerator configured to accelerate the combustion gas including the erodent to collide with the test piece.Type: ApplicationFiled: November 5, 2015Publication date: May 12, 2016Inventors: Daisuke KUDO, Taiji TORIGOE, Junichiro MASADA, Koji TAKAHASHI, Yoshitaka UEMURA, Yoshifumi OKAJIMA, Naotoshi OKAYA, Eisaku ITO, Masahiko MEGA, Shigenari HORIE, Shuji TANIGAWA, Yasuhiko TSURU, Keizo TSUKAGOSHI, Masamitsu KUWABARA
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Patent number: 9255490Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 24, 2009Date of Patent: February 9, 2016Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377055Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377056Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377054Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi