Patents by Inventor Shigekazu MIYASHITA
Shigekazu MIYASHITA 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).
-
Publication number: 20230020444Abstract: A heat storage material composition according to an aspect of the present invention includes a main agent mixture composed of calcium chloride hexahydrate. ammonium chloride, and water. wherein when the content of calcium chloride hexahydrate is defined as CA mass %, the content of ammonium chloride is defined as NH mass %. and the content of water is defined as W mass % in 100 mass % of the main agent mixture, parameters X and Y defined by equations (P1) and (P2) below satisfy equations (1) to (5) below. [Equation 1] X=100×CA/(CA+W) ??(P1) [Equation 2] Y=100×NH/(CA+NH+W) ??(P2) [Equation 3] X?51.75>0 ??(1) [Equation 4] 52.75?X>0 ??(2) [Equation 5] 4.25?Y>0 ??(3) [Equation 6] 1.2245X+Y?66.367>0 ??(4) [Equation 7] ?2.1569X+Y+110.Type: ApplicationFiled: September 15, 2022Publication date: January 19, 2023Applicant: YAZAKI CORPORATIONInventors: Sangbae LEE, Shigekazu MIYASHITA, Takashi MOMOI
-
Publication number: 20220282146Abstract: A heat storage material composition includes a main agent composed of calcium chloride hexahydrate, ammonium bromide, and potassium chloride, wherein when a content of calcium chloride hexahydrate is defined as X mass %, a content of ammonium bromide is defined as Y mass %, and a content of potassium chloride is defined as Z mass % in 100 mass % of the main agent, X, Y, and Z satisfy following equations (1) to (4): [Equation 1] X+Y+Z=100??(1) [Equation 2] X+0.714Y?90.857?0??(2) [Equation 3] X+Y?99.Type: ApplicationFiled: May 20, 2022Publication date: September 8, 2022Applicant: YAZAKI CORPORATIONInventors: Takashi MOMOI, Shigekazu MIYASHITA, Sangbae LEE
-
Publication number: 20220089929Abstract: A heat storage material composition includes a main agent composed of a calcium chloride hexahydrate, an ammonium bromide, and a potassium bromide, wherein a 5° C. range lower-limit temperature T5L is in a range of 15° C. or more to less than 20° C., and a 5° C. range latent heat of melting H5 is 140 J/g or more. Preferably, the heat storage material composition includes 79 to 90.9 mass % of the calcium chloride hexahydrate, 2.7 to 12.3 mass % of the ammonium bromide, and 1.8 to 14.4 mass % of the potassium bromide in 100 mass % of the main agent.Type: ApplicationFiled: December 2, 2021Publication date: March 24, 2022Applicant: YAZAKI CORPORATIONInventors: Sangbae LEE, Tsutomu Kagohashi, Shigekazu Miyashita, Takashi Momoi
-
Patent number: 10415123Abstract: The austenitic heat resistant steel of the embodiment contains: 24 to 50% by mass of Ni, 5 to 13% by mass of Cr, 0.1 to 12% by mass of Co, 0.1 to 5% by mass of Nb, 0.1 to 0.5% by mass of V, 1.90 to 2.35% by mass of Ti, 0.01 to 0.30% by mass of Al, 0.001 to 0.01% by mass of B, 0.001 to 0.1% by mass of C, and the balance being Fe and inevitable impurities.Type: GrantFiled: July 7, 2017Date of Patent: September 17, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Shun Oinuma, Kiyoshi Imai, Shigekazu Miyashita, Kuniyoshi Nemoto
-
Patent number: 9856735Abstract: A method of manufacturing a steam turbine rotor which includes an ultra-high temperature side portion in which ultra-high temperature steam flows and a high temperature side portion in which high temperature steam flows, the manufacturing method including the steps of: preparing a first electrode having a chemical composition corresponding to a chemical composition of a heat resistant alloy making up the ultra-high temperature side portion and a second electrode having a chemical composition corresponding to a chemical composition of the high temperature side portion; tentatively joining together joints of the electrodes, with the joints of the electrodes made smaller in cross sectional area than other electrode portions; subjecting the tentatively joined first and second electrodes to an ESR process to obtain an ESR ingot and forging the ingot into a shape of a rotor to obtain a rotor forging; and heat-treating the rotor forging to obtain a rotor blank and manufacturing the steam turbine rotor from the rotorType: GrantFiled: October 27, 2009Date of Patent: January 2, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masayuki Yamada, Takao Inukai, Kiyoshi Imai, Shigekazu Miyashita, Kuniyoshi Nemoto, Reki Takaku
-
Publication number: 20170314106Abstract: The austenitic heat resistant steel of the embodiment contains: 24 to 50% by mass of Ni, 5 to 13% by mass of Cr, 0.1 to 12% by mass of Co, 0.1 to 5% by mass of Nb, 0.1 to 0.5% by mass of V, 1.90 to 2.35% by mass of Ti, 0.01 to 0.30% by mass of Al, 0.001 to 0.01% by mass of B, 0.001 to 0.1% by mass of C, and the balance being Fe and inevitable impurities.Type: ApplicationFiled: July 7, 2017Publication date: November 2, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shun OINUMA, Kiyoshi IMAI, Shigekazu MIYASHITA, Kuniyoshi NEMOTO
-
Patent number: 9447486Abstract: An Ni-based alloy for casting used for a steam turbine of an embodiment contains in percent (%) by mass C (carbon): 0.01 to 0.1, Cr (chromium): 15 to 25, Co (cobalt): 10 to 15, Mo (molybdenum): 5 to 12, Al (aluminum): 0.5 to 2, Ti (titanium): 0.3 to 2, B (boron): 0.001 to 0.006, Ta (tantalum): 0.05 to 1, Si (silicon): 0.1 to 0.5, Mn (manganese): 0.1 to 0.5, and the balance of Ni (nickel) and unavoidable impurities.Type: GrantFiled: June 4, 2012Date of Patent: September 20, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kuniyoshi Nemoto, Yomei Yoshioka, Kiyoshi Imai, Shigekazu Miyashita, Takeo Suga
-
Patent number: 9328402Abstract: In one embodiment, a nickel-base alloy for forging or rolling contains, in weight %, carbon (C): 0.05 to 0.2, silicon (Si) 0.01 to 1, manganese (Mn): 0.01 to 1, cobalt (Co): 5 to 20, iron (Fe): 0.01 to 10, chromium (Cr): 15 to 25, and one kind or two kinds or more of molybdenum (Mo), tungsten (W) and rhenium (Re), with Mo+(W+Re)/2: 8 to 25, the balance being nickel (Ni) and unavoidable impurities.Type: GrantFiled: August 11, 2010Date of Patent: May 3, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Yamada, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Takeo Suga
-
Patent number: 9238853Abstract: A Ni-base casting superalloy containing, in masse, C: 0.05 to 0.2, Si: 0.01 to 1, Mn: 0.01 to 1, Co: 5 to 20, Fe: 10 or less, Cr: 15 to 25, and one kind or two kinds or more of Mo, W, and Re, with Mo+(W+Re)/2: 8 to 25, the balance being Ni and unavoidable impurities.Type: GrantFiled: May 20, 2009Date of Patent: January 19, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masayuki Yamada, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Kazutaka Ikeda, Takeo Suga
-
Patent number: 8858158Abstract: A steam turbine 10 is comprised of a double-structured casing configured of an outer casing 21 and an inner casing 20, a turbine rotor 23 disposed through the inner casing and having a plurality of stages of moving blades 22 implanted, and a plurality of stages of stationary blades 25 disposed alternately with the moving blades 22 in the axial direction of the turbine rotor 23 in the inner casing 20. The steam turbine 10 is further provided with a discharge passage 30 which externally guides steam, which has flown in the inner casing and passed the final stage moving blades while performing expansion work, directly from the inner casing interior.Type: GrantFiled: August 6, 2009Date of Patent: October 14, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kazutaka Ikeda, Katsuya Yamashita, Takao Inukai, Kazuhiro Saito, Kouichi Kitaguchi, Shogo Iwai, Shigekazu Miyashita
-
Patent number: 8828313Abstract: An Ni-base alloy for a turbine rotor of a steam turbine contains in percent by weight C: 0.01 to 0.15, Cr: 15 to 28, Co: 10 to 15, Mo: 8 to 12, Al: 1.5 to 2, Ti: 0.1 to 0.6, B: 0.001 to 0.006, Re: 0.5 to 3, and the balance of Ni and unavoidable impurities.Type: GrantFiled: March 13, 2009Date of Patent: September 9, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kuniyoshi Nemoto, Kiyoshi Imai, Yomei Yoshioka, Masayuki Yamada, Reki Takaku, Shigekazu Miyashita, Takeo Suga, Takeo Takahashi, Kenichi Okuno, Akihiro Takakuwa
-
Publication number: 20120315133Abstract: An Ni-based alloy for casting used for a steam turbine of an embodiment contains in percent (%) by mass C (carbon): 0.01 to 0.1, Cr (chromium): 15 to 25, Co (cobalt): 10 to 15, Mo (molybdenum): 5 to 12, Al (aluminum): 0.5 to 2, Ti (titanium): 0.3 to 2, B (boron): 0.001 to 0.006, Ta (tantalum): 0.05 to 1, Si (silicon): 0.1 to 0.5, Mn (manganese): 0.1 to 0.5, and the balance of Ni (nickel) and unavoidable impurities.Type: ApplicationFiled: June 4, 2012Publication date: December 13, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Kuniyoshi NEMOTO, Yomei YOSHIOKA, Kiyoshi IMAI, Shigekazu MIYASHITA, Takeo SUGA
-
Publication number: 20110229339Abstract: A method of manufacturing a steam turbine rotor which includes an ultra-high temperature side portion in which ultra-high temperature steam flows and a high temperature side portion in which high temperature steam flows, the manufacturing method including the steps of: preparing a first electrode having a chemical composition corresponding to a chemical composition of a heat resistant alloy making up the ultra-high temperature side portion and a second electrode having a chemical composition corresponding to a chemical composition of the high temperature side portion; tentatively joining together joints of the electrodes, with the joints of the electrodes made smaller in cross sectional area than other electrode portions; subjecting the tentatively joined first and second electrodes to an ESR process to obtain an ESR ingot and forging the ingot into a shape of a rotor to obtain a rotor forging; and heat-treating the rotor forging to obtain a rotor blank and manufacturing the steam turbine rotor from the rotorType: ApplicationFiled: October 27, 2009Publication date: September 22, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Masayuki Yamada, Takao Inukai, Kiyoshi Imai, Shigekazu Miyashita, Kuniyoshi Nemoto, Reki Takaku
-
Publication number: 20110064569Abstract: In one embodiment, a nickel-base alloy for forging or rolling contains, in weight %, carbon (C): 0.05 to 0.2, silicon (Si) 0.01 to 1, manganese (Mn): 0.01 to 1, cobalt (Co): 5 to 20, iron (Fe): 0.01 to 10, chromium (Cr): 15 to 25, and one kind or two kinds or more of molybdenum (Mo), tungsten (W) and rhenium (Re), with Mo+(W+Re)/2: 8 to 25, the balance being nickel (Ni) and unavoidable impurities.Type: ApplicationFiled: August 11, 2010Publication date: March 17, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Masayuki YAMADA, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Takeo Suga
-
Publication number: 20100239425Abstract: A nickel (Ni)-base alloy for a turbine rotor of a steam turbine containing, in mass %, carbon (C): 0.01% to 0.15%, chromium (Cr): 18% to 28%, cobalt (Co): 10% to 15%, molybdenum (Mo): 8% to 12%, aluminum (Al): 0.5% to less than 1.5%, titanium (Ti): 0.7% to 3.0%, and boron (B): 0.001% to 0.006%, the balance being nickel (Ni) and unavoidable impurities.Type: ApplicationFiled: March 16, 2010Publication date: September 23, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shigekazu MIYASHITA, Kiyoshi Imai, Masayuki Yamada, Kuniyoshi Nemoto, Takeo Suga, Takeo Takahashi, Kazutaka Ikeda
-
Publication number: 20100158681Abstract: A Ni-based alloy for a forged part of a steam turbine having excellent high temperature strength, forgeability and weldability includes, in percentage by mass, 0.01 to 0.15 of C, 18 to 28 of Cr, 10 to 15 of Co, 8 to 12 of Mo, 1.5 to 2 of Al, 0.1 to 3 of Ti, 0.001 to 0.006 of B, 0.1 to 0.7 of Ta, and the balance of Ni plus unavoidable impurities.Type: ApplicationFiled: December 8, 2009Publication date: June 24, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kuniyoshi NEMOTO, Kiyoshi IMAI, Yomei YOSHIOKA, Masayuki YAMADA, Shigekazu MIYASHITA, Takeo SUGA, Takeo TAKAHASHI, Kazutaka IKEDA
-
Publication number: 20100158682Abstract: A Ni-based alloy for a casting part of a steam turbine having excellent high temperature strength, castability and weldability includes, in percentage by mass, 0.01 to 0.15 of C, 18 to 28 of Cr, 10 to 15 of Co, 8 to 12 of Mo, 1.5 to 2 of Al, 0.1 to 3 of Ti, 0.001 to 0.006 of B, 0.1 to 0.7 of Ta, and the balance of Ni plus unavoidable impurities.Type: ApplicationFiled: December 8, 2009Publication date: June 24, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kuniyoshi NEMOTO, Kiyoshi Imai, Yomei Yoshioka, Masayuki Yamada, Shigekazu Miyashita, Takeo Suga, Takeo Takahashi, Kazutaka Ikeda
-
Publication number: 20100034641Abstract: A steam turbine 10 is comprised of a double-structured casing configured of an outer casing 21 and an inner casing 20, a turbine rotor 23 disposed through the inner casing and having a plurality of stages of moving blades 22 implanted, and a plurality of stages of stationary blades 25 disposed alternately with the moving blades 22 in the axial direction of the turbine rotor 23 in the inner casing 20. The steam turbine 10 is further provided with a discharge passage 30 which externally guides steam, which has flown in the inner casing and passed the final stage moving blades while performing expansion work, directly from the inner casing interior.Type: ApplicationFiled: August 6, 2009Publication date: February 11, 2010Inventors: Kazutaka Ikeda, Katsuya Yamashita, Takao Inukai, Kazuhiro Saito, Kouichi Kitaguchi, Shogo Iwai, Shigekazu Miyashita
-
Publication number: 20090291016Abstract: A Ni-base casting superalloy containing, in masse, C: 0.05 to 0.2, Si: 0.01 to 1, Mn: 0.01 to 1, Co: 5 to 20, Fe: 10 or less, Cr: 15 to 25, and one kind or two kinds or more of Mo, W, and Re, with Mo+(W+Re)/2: 8 to 25, the balance being Ni and unavoidable impurities.Type: ApplicationFiled: May 20, 2009Publication date: November 26, 2009Applicant: Kabushiki Kaisha ToshibaInventors: Masayuki Yamada, Kiyoshi Imai, Kuniyoshi Nemoto, Shigekazu Miyashita, Kazutaka Ikeda, Takeo Suga
-
Publication number: 20090285692Abstract: An Ni-base alloy for a turbine rotor of a steam turbine contains in percent by weight C: 0.01 to 0.15, Cr: 15 to 28, Co: 10 to 15, Mo: 8 to 12, Al: 1.5 to 2, Ti: 0.1 to 0.6, B: 0.001 to 0.006, Re: 0.5 to 3, and the balance of Ni and unavoidable impurities.Type: ApplicationFiled: March 13, 2009Publication date: November 19, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kuniyoshi NEMOTO, Kiyoshi IMAI, Yomei YOSHIOKA, Masayuki YAMADA, Reki TAKAKU, Shigekazu MIYASHITA, Takeo SUGA, Takeo TAKAHASHI, Kenichi OKUNO, Akihiro TAKAKUWA