Patents by Inventor Fujio Abe
Fujio Abe 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: 7785426Abstract: A welded joint of a tempered martensitic heat resisting steel includes a fine-grained heat affected zone of weldment of a heat resisting steel having a tempered martensite structure which exhibits a creep strength of 90% or more of the creep strength of the base metal thereof. The welded joint is inhibited in the formation of the fine-grained HAZ exhibiting a significantly reduced creep strength.Type: GrantFiled: March 31, 2004Date of Patent: August 31, 2010Assignees: National Institute for Materials Science, Sumitomo Metal Industries, Ltd., Mitsubishi Heavy Industries, Ltd.Inventors: Masaaki Tabuchi, Hirokazu Okada, Masayuki Kondo, Susumu Tsukamoto, Fujio Abe
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Publication number: 20080216927Abstract: A high temperature bolt material, characterized in that it is a ferrite steel comprising 8 wt % or more of Cr and having a tempered martensite structure and can be used in a high temperature region of higher than 500° C.; and a method for producing the high temperature bolt material which comprises subjecting the above-mentioned steel material to a heat treatment comprising a quenching or normalizing at a temperature of 1000° C. or higher and then to a tempering at a temperature of 730° C. or higher. The above ferrite steel high temperature bolt material is excellent in characteristics of the resistance to stress relaxation.Type: ApplicationFiled: August 27, 2004Publication date: September 11, 2008Inventors: Toshio Ohba, Kota Sawada, Kazuhiro Kimura, Hirokazu Okada, Fujio Abe
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Publication number: 20070119301Abstract: The present invention is a humidity conditioner having a configuration in which one or more water-soluble polymers are introduced into a three-dimensional framework that is formed by one or more crosslinked water-absorbing polymers. Here, for the water-absorbing polymers, either polyacrylate salt or one or more polyacrylate salt-polyvinyl alcohol copolymers can be used. For the water-soluble polymers, one or both of polyvinyl alcohol and polyisopropylacrylamide can be used.Type: ApplicationFiled: February 25, 2005Publication date: May 31, 2007Inventor: Fujio Abe
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Patent number: 7211159Abstract: A ferritic heat-resistant steel, which exhibits excellent creep characteristics even at a high temperature exceeding 600° C., comprises, on the basis of percent by weight, 1.0 to 13% of chromium, 0.1 to 8.0% of cobalt, 0.01 to 0.20% of nitrogen, 3.0% or less of nickel, 0.01 to 0.50% of one or more of elements selected from a group consisting of vanadium, niobium, tantalum, titanium, hafnium, and zirconium that are MX type precipitate forming elements, and 0.01% or less of carbon and a balance being substantially iron and inevitable impurities, wherein the MX type precipitates precipitate on grain boundaries and in entire grains and the grain boundary existing ratio of an M23C6 type precipitate precipitating on the grain boundaries is 50% or less.Type: GrantFiled: April 19, 2002Date of Patent: May 1, 2007Assignees: National Institute for Materials Science, Mitsubishi Heavy Industries, Ltd.Inventors: Masaki Taneike, Fujio Abe
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Patent number: 7128791Abstract: The present invention provides a martensitic heat resistant alloy having a composition (A) comprising, % by weight: 0.03 to 0.15% of C; 0.01 to 0.9% of Si: 0.01 to 1.5% of Mn; 8.0 to 13.0% of Cr; 0.0005 to 0.015% of Al; no more than 2.0% of Mo; no more than 4.0% of W; 0.05 to 0.5% of V; 0.01 to 0.2% of Nb; 0.1 to 5.0% of Co; 0.008 to 0.03% of B; less than 0.005% of N: and Fe and inevitable impurities as the remainder, wherein (B) the contents (% by weight) of Mo, W, B and N satisfy the following formulae (1) and (2). B?0.772N>0.007??(1) W+1.916Mo?16.99B>2.0??(2) The martensitic heat resistant alloy of the present invention has excellent oxidation resistance, hot workability and ductility and exhibits high creep rupture strength in a range of relatively long rupture time at a high temperature.Type: GrantFiled: January 30, 2002Date of Patent: October 31, 2006Assignees: National Institute for Materials Science, Sumitomo Metal Industries, Ltd., Hitachi, Ltd.Inventors: Toshiaki Horiuchi, Masaaki Igarashi, Fujio Abe
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Publication number: 20060054253Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 ?m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.Type: ApplicationFiled: October 17, 2005Publication date: March 16, 2006Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
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Patent number: 6936791Abstract: The carrying case for storing and transporting heated articles includes a thermal storage assembly having a heat retention member for absorbing and retaining sensible heat and for releasing the sensible heat of a extended period time. The thermal storage assembly includes a heating coil assembly secured to a surface of the heat retention member. The heating coil assembly includes a resistive heating coil disposed adjacent to the heat retention member. The heating coil has a power cord connected to the coil with the coil being retained within a sealed thermally conductive pouch.Type: GrantFiled: March 15, 2000Date of Patent: August 30, 2005Assignee: Vesture Acquisition CorporationInventors: Wayne D. Baldwin, Fujio Abe
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Publication number: 20040060621Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.Type: ApplicationFiled: September 30, 2003Publication date: April 1, 2004Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
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Publication number: 20040057862Abstract: The present invention provides a martensitic heat resistant alloy having a composition (A) comprising, % by weight: 0.03 to O.15% of C; 0.01 to 0.9% of Si: 0.01 to 1.5% of Mn; 8.0 to 13.0% of Cr; 0.0005 to 0.015% of Al; ;no more than 2.0% of Mo; no more than 4.0% of W; 0.05 to 0.5% of V; 0.01 to 0.2% of Nb; 0.1 to 5.0% of Co; 0.O08 to 0.03% of B; less than 0.005% of N: and Fe and inevitable impurities as the remainder, wherein (B) the contents (% by weight) of Mo, W, B and N satisfy the following formulae (1) and (2).Type: ApplicationFiled: March 13, 2003Publication date: March 25, 2004Inventors: Toshiaki Horiuchi, Masaaki Igarashi, Fujio Abe
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Publication number: 20030188812Abstract: A ferritic heat-resistant steel, which exhibits excellent creep characteristics even at a high temperature exceeding 600° C., comprises, on the basis of percent by weight, 1.0 to 13% of chromium, 0.1 to 8.0% of cobalt, 0.01 to 0.20% of nitrogen, 3.0% or less of nickel, 0.01 to 0.50% of one or more of elements selected from a group consisting of vanadium, niobium, tantalum, titanium, hafnium, and zirconium that are MX type precipitate forming elements, and 0.01% or less of carbon and a balance being substantially iron and inevitable impurities, wherein the MX type precipitates precipitate on grain boundaries and in entire grains and the grain boundary existing ratio of an M23C6 type precipitate precipitating on the grain boundaries is 50% or less.Type: ApplicationFiled: June 4, 2003Publication date: October 9, 2003Inventors: Masaki Taneike, Fujio Abe
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Publication number: 20030127163Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.Type: ApplicationFiled: July 22, 2002Publication date: July 10, 2003Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
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Publication number: 20020033210Abstract: High chromium ferritic steel containing chromium (Cr) in amount of 7˜12 weight %, one or two elements of molybdenum (Mu) and tungsten (W) as a solid-solution strengthening element, and one or more of elements for forming a MX carbonitride(s) is heat-treated at a temperature higher than both solid-solution temperature of the element(s) for forming the MX carbonitride(s) and a precipitation starting temperature of 6 ferrite for 5 seconds or longer, cooled at a rate of 0.5° C./s or faster, and subsequently tempered.Type: ApplicationFiled: January 8, 2001Publication date: March 21, 2002Inventors: Nobuyuki Fujitsuna, Masaaki Igarashi, Fujio Abe
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Publication number: 20020011285Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.Type: ApplicationFiled: September 21, 1998Publication date: January 31, 2002Inventors: NOBUYUKI FUJITSUNA, FUJIO ABE, TAKEHIKO ITAGAKI, MASAAKI IGARASHI, SEIICHI MUNEKI, KAZUHIRO KIMURA, HIDEAKI KUSHIMA
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Patent number: 5892202Abstract: The carrying case for storing and transporting heated articles includes a thermal storage assembly having a heat retention member for absorbing and retaining sensible heat and for releasing the sensible heat of a extended period time. The thermal storage assembly includes a heating coil assembly secured to a surface of the heat retention member. The heating coil assembly includes a resistive heating coil disposed adjacent to the heat retention member. The heating coil has a power cord connected to the coil with the coil being retained within a sealed thermally conductive pouch.Type: GrantFiled: September 6, 1996Date of Patent: April 6, 1999Assignee: Vesture CorporationInventors: Wayne D. Baldwin, Fujio Abe
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Patent number: 5104504Abstract: A efficient photochemical method for the preparation of an alcohol compound, e.g., benzyl alcohol, from a non-olefin hydrocarbon compound, e.g., benzene, was proposed in which a mixture of the non-olefin hydrocarbon compound as the starting material and a hydrogen donor compound, which is a cycloalkane of 5 to 16 carbon atoms in a molecule, e.g., cyclooctane, or an aliphatic alcohol of up to 10 carbon atoms in a molecule, e.g., isopropyl alcohol, is irradiated with light under an atmosphere of carbon monoxide in the presence of a complex compound of rhodium or iridium, of which at least one of the ligands is preferably a monophosphine or bisphosphine compound. The method is advantageous in that the reaction can proceed under mild reaction conditions and that the amount of the aldehyde compound formed in the reaction mixture as a by-product is very small as compared with conventional methods so as to greatly facilitate isolation of the desired alcohol product from the reaction mixture.Type: GrantFiled: September 21, 1990Date of Patent: April 14, 1992Assignee: Agency of Industrial Science and TechnologyInventors: Masato Tanaka, Toshiyasu Sakakura, Fujio Abe