Patents by Inventor Toshio Yonezawa
Toshio Yonezawa 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).
-
Patent number: 8822567Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.Type: GrantFiled: September 12, 2012Date of Patent: September 2, 2014Assignee: Takemoto Yushi Kabushiki KaishaInventors: Takao Kono, Toshio Yonezawa, Eiji Sato, Tomonori Yoshida, Mitsuo Kinoshita, Shinji Tamaki
-
Publication number: 20130023606Abstract: Soil cement slurry is produced by mixing blast-furnace slag fine particles with a specified fineness and Portland cement at a specified ratio to prepare blast-furnace slag cement and using a specified amount of slurry composition for ground improvement including this blast-furnace slag cement with water and an admixture per 1 m3 of ground. The admixture contains specified amounts of a hardening accelerator, a defoamer and a fluidizer.Type: ApplicationFiled: September 12, 2012Publication date: January 24, 2013Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Takao Kono, Toshio Yonezawa, Eiji Sato, Tomonori Yoshida, Mitsuo Kinoshita, Shinji Tamaki
-
Patent number: 8172959Abstract: There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150° C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.Type: GrantFiled: January 13, 2005Date of Patent: May 8, 2012Assignees: Mitsubishi Heavy Industries, Ltd., The Tokyo Electric Power Company, Inc.Inventors: Yasuhiro Sakaguchi, Toshihiko Iwamura, Hiroshi Kanasaki, Hidehito Mimaki, Masaki Taneike, Shunichi Suzuki, Kenrou Takamori, Suguru Ooki, Naoki Anahara, Naoki Hiranuma, Toshio Yonezawa
-
Publication number: 20120010331Abstract: Concrete compositions including a binder, water, a fine aggregate, a coarse aggregate and an admixture are provided. The binder is formed with a blast-furnace slag composition including 100 mass parts of a mixture of 80-95 mass % of blast-furnace slag fine particles with fineness 3000-13000 cm2/g and 5-20 mass parts of gypsum for a total of 100 mass % and 0.5-1.5 mass parts or 5-45 mass parts of an alkaline stimulant. Such concrete compositions can maintain superior operability by reducing the discharged amount of carbon dioxide and the decrease with time in fluidity and air content of the prepared concrete compositions. They can also reduce the drying shrinkage of the obtained hardened objects and allow the obtained hardened objects to manifest necessary strength.Type: ApplicationFiled: September 16, 2011Publication date: January 12, 2012Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Toshio Yonezawa, Kenro Mitsui, Kazumasa Inoue, Yosaku Ikeo, Masahiro Wachi, Takashi Hasumi, Mitsuo Kinoshita, Kazuhide Saitou, Moe Kuroda, Shinji Tamaki
-
Publication number: 20110136946Abstract: Slurry composition for ground improvement is obtained from cement, water and an admixture. The slurry composition cement is of a kind prepared by using blast-furnace slag cement of a specified type as the cement at a water/blast-furnace slag cement mass ratio of 40-250% and contains the admixture in an amount of 0.1-5 mass parts for 100 mass parts of the blast-furnace slag cement. The blast-furnace slag cement of the specified type contains blast-furnace slag fine particles with fineness 3000-13000 cm2/g in an amount of 60-80 mass % and portland cement in an amount of 20-40 mass % for a total of 100 mass %.Type: ApplicationFiled: February 16, 2011Publication date: June 9, 2011Inventors: Takao Kono, Toshio Yonezawa, Eiji Sato, Tomonori Yoshida, Mitsuo Kinoshita, Shinji Tamaki
-
Patent number: 7601770Abstract: A multi-functional admixture for concrete, having improved fluidity for providing hardened materials with improved early strength, smaller shrinkage rate, improved resistance against freezing and thawing action and slower carbonation speed, contains a specified kind of graft copolymer and/or its salt, a specified kind of (poly)alkyleneglycol monoalkyl ether and a specified kind of organic phosphate at specified ratios.Type: GrantFiled: February 24, 2004Date of Patent: October 13, 2009Assignee: Takemoto Yushi Kabushiki KaishaInventors: Kazumasa Inoue, Toshio Yonezawa, Kenrou Mitsui, Masarou Kojima, Mitsuo Kinoshita, Junji Inagaki, Shinji Tamaki, Toyoji Miura
-
Publication number: 20080308198Abstract: There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150° C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.Type: ApplicationFiled: January 13, 2005Publication date: December 18, 2008Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., THE TOKYO ELECTRIC POWER COMPANY, INC.Inventors: Yasuhiro Sakaguchi, Toshihiko Iwamura, Hiroshi Kanasaki, Hidehito Mimaki, Masaki Taneike, Shunichi Suzuki, Kenrou Takamori, Suguru Ooki, Naoki Anahara, Naoki Hiranuma, Toshio Yonezawa
-
Patent number: 7265168Abstract: A high-strength hydraulic cement composition contains cement, fine aggregates, coarse aggregates, water and a specified admixture and has a unit amount of water in the range of 120-185 kg/m3. Water and the cement are contained at a ratio of 20-40% and the admixture is contained in the amount of 0.1-3.0 weight parts per 100 weight parts of the cement. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.Type: GrantFiled: October 27, 2004Date of Patent: September 4, 2007Assignees: Takenaka Corporation, Takemoto Yushi Kabushiki KaishaInventors: Kenrou Mitsui, Masarou Kojima, Keishirou Okamoto, Toshio Yonezawa, Mitsuo Kinoshita, Masahiro Iida, Kazuhide Saitou, Shinji Tamaki
-
Patent number: 7259197Abstract: An ultra high-strength hydraulic cement composition contains a binder, fine aggregates, coarse aggregates, an antifoaming agent, water and a specified admixture and has a unit amount of the binder in the range of 480-1800 kg/m3. Water and the binder are contained at a ratio of 10-25% and the admixture is contained in the amount of 0.2-3.5 weight parts per 100 weight parts of the binder. The binder may be cement or a mixture of cement and a microscopic powder admixture. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.Type: GrantFiled: October 27, 2004Date of Patent: August 21, 2007Assignees: Takenaka Corporation, Takemoto Yushi Kabushiki KaishaInventors: Kenrou Mitsui, Masarou Kojima, Keishirou Okamoto, Toshio Yonezawa, Mitsuo Kinoshita, Masahiro Iida, Kazuhide Saitou, Shinji Tamaki
-
Patent number: 6937913Abstract: Disclosed herein are a product design process and apparatus for quickly and easily defining an optimal product concept capable of conveying a high degree of customer satisfaction. In the process of the present invention, wants and needs information is analyzed, and, based on the analyzed wants and needs information, weighting is carried out with respect to evaluation indices which have been previously stored in a storage device and which are quantitative measures of the degree to which the user is likely to perceive a benefit latent in the product under consideration and inherent in the wants and needs information to have been achieved, an evaluation index having the highest weighting among a plurality of weighted evaluation indices is selected as a primary evaluation index and a product design concept for which the primary evaluation index selected is a maximum or minimum is defined.Type: GrantFiled: July 30, 2001Date of Patent: August 30, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Akihito Nishikawa, Yoshihiro Motowaki, Toshio Yonezawa
-
Publication number: 20050150428Abstract: An ultra high-strength hydraulic cement composition contains a binder, fine aggregates, coarse aggregates, an antifoaming agent, water and a specified admixture and has a unit amount of the binder in the range of 480-1800kg/m3. Water and the binder are contained at a ratio of 10-25% and the admixture is contained in the amount of 0.2-3.5 weight parts per 100 weight parts of the binder. The binder may be cement or a mixture of cement and a microscopic powder admixture. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.Type: ApplicationFiled: October 27, 2004Publication date: July 14, 2005Inventors: Kenrou Mitsui, Masarou Kojima, Keishirou Okamoto, Toshio Yonezawa, Mitsuo Kinoshita, Masahiro Iida, Kazuhide Saitou, Shinji Tamaki
-
Publication number: 20050124737Abstract: A multi-functional admixture for concrete, having improved fluidity for providing hardened materials with improved early strength, smaller shrinkage rate, improved resistance against freezing and thawing action and slower carbonation speed, contains a specified kind of graft copolymer and/or its salt, a specified kind of (poly)alkyleneglycol monoalkyl ether and a specified kind of organic phosphate at specified ratios.Type: ApplicationFiled: February 24, 2004Publication date: June 9, 2005Inventors: Kazumasa Inoue, Toshio Yonezawa, Kenrou Mitsui, Masarou Kojima, Mitsuo Kinoshita, Junji Inagaki, Shinji Tamaki, Toyoji Miura
-
Publication number: 20050119375Abstract: A high-strength hydraulic cement composition contains cement, fine aggregates, coarse aggregates, water and a specified admixture and has a unit amount of water in the range of 120-185 kg/m3. Water and the cement are contained at a ratio of 20-40% and the admixture is contained in the amount of 0.1-3.0 weight parts per 100 weight parts of the cement. The admixture is one or more selected from reaction mixtures obtained by specified two processes and partially or completely neutralized substances obtained from such a reaction mixture through these two processes and also a specified third process.Type: ApplicationFiled: October 27, 2004Publication date: June 2, 2005Inventors: Kenrou Mitsui, Masarou Kojima, Keishirou Okamoto, Toshio Yonezawa, Mitsuo Kinoshita, Masahiro Iida, Kazuhide Saitou, Shinji Tamaki
-
Publication number: 20020077882Abstract: Disclosed herein are a product design process and apparatus for quickly and easily defining an optimal product concept capable of conveying a high degree of customer satisfaction, and for rapidly getting to market with a product having a high degree of market competitiveness.Type: ApplicationFiled: July 30, 2001Publication date: June 20, 2002Inventors: Akihito Nishikawa, Yoshihiro Motowaki, Toshio Yonezawa
-
Patent number: 6245163Abstract: An austenitic stainless steel having resistance to neutron-irradiation-induced deterioration obtained by subjecting a stainless steel consisting of not more than 0.08% by weight of C, not more than 2.0% by weight of Mn, not more than 1.5% by weight of Si, not more than 0.045% by weight of P, not more than 0.030% by weight of S, 8.0 to 22.0% of by weight Ni, 16.0 to 26.0% of by weight Cr and the balance as Fe; to thermal solid solution treatment at a temperature of 1,000° C. to 1,180° C. and then subjecting the so-treated steel to aging treatment at a temperature in the range of 600° C. to 750° C.Type: GrantFiled: April 19, 1999Date of Patent: June 12, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Toshio Yonezawa, Toshihiko Iwamura, Koji Fujimoto
-
Patent number: 6190785Abstract: This invention relates to a spray coating powder material which, when applied to gas turbines using a crude low-quality fuel oil as fuel, has sufficiently higher corrosion resistance to sulfur, vanadium, sodium and other substances that accelerate corrosion in a high-temperature service environment, than conventional materials such as Ni-50 Cr and MCrAlY materials, as well as high-temperature components coated therewith. Specifically, this invention relates to a spray coating powder material comprising, on a weight percentage basis, greater than 45% and up to 60% of chromium, 5 to 15% of aluminum, 0.5 to 10% of zirconium, and the balance comprising cobalt or iron, or both, and incidental impurities, as well as high-temperature components coated therewith. This material can yield a sprayed coating having high corrosion resistance to sulfur, vanadium, sodium and other substances that accelerate corrosion in a high-temperature service environment.Type: GrantFiled: January 29, 1999Date of Patent: February 20, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Toshio Yonezawa, Koji Fujimoto, Takashi Shige, Ikumasa Koshiro, Koji Takahashi
-
Patent number: 5976275Abstract: The present invention aims at providing structural materials having a resistance to degradation by neutron irradiation, causing no SCC in an environment of light-water reactors even after subjecting the materials to neutron irradiation of approximately at least 1.times.10.sup.22 n/cm.sup.2 (E>1 MeV), and having thermal expansion coefficients approximately similar to that of structural materials. The high nickel austenitic stainless steels of the present invention having a resistance to degradation by neutron irradiation can be produced by subjecting stainless steels having compositions (by weight %) of 0.005 to 0.08% of carbon, at most 0.3% of Mn, at most 0.2% of (Si+P+S), 25 to 40% of Ni, 25 to 40% of Cr, at most 3% of Mo or at most 5% of (Mo+W), at most 0.3% of Nb+Ta, at most 0.3% of Ti, at most 0.001% of B and the balance of Fe to a solution-annealing treatment at a temperature of 1000 to 1150.degree. C.Type: GrantFiled: June 5, 1997Date of Patent: November 2, 1999Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Toshio Yonezawa, Toshihiko Iwamura, Hiroshi Kanasaki, Koji Fujimoto, Shizuo Nakada, Kazuhide Ajiki, Mitsuhiro Nakamura
-
Patent number: 5855663Abstract: There are here disclosed carbon fibers for reinforcement of cement which are obtained by applying, onto the surfaces of carbon fibers, esters of oleic acid and aliphatic monovalent alcohols, esters of oleyl alcohol and monovalent fatty acids, polyoxyalkylene bisphenol ethers or polyether esters as sizing agents, and a cement composite material having a bending strength of 300 kgf/cm.sup.2 or more which contains cut carbon fibers having a fiber length of 10 to 50 mm at a mixing volume ratio of the cut carbon fibers to the cement matrix in the range of 1 to 5%. According to the present invention, there are provided the carbon fibers for reinforcement of cement which have excellent adhesive properties to the cement, good process passage properties through a direct spray gun and good bundling properties and which are suitable for a direct spray method, and the cement composite material using the carbon fibers and having high bending strength.Type: GrantFiled: June 16, 1997Date of Patent: January 5, 1999Assignees: Petoca, Ltd., Takenaka CorporationInventors: Katsumi Takano, Yasushi Katsuta, Hideyuki Nakajima, Yoshikazu Nagata, Sadatoshi Ohno, Tadahiro Kakizawa, Toshio Yonezawa, Junichi Ida, Masaki Iwata
-
Patent number: 5686181Abstract: There are here disclosed carbon fibers for reinforcement of cement which are obtained by applying, onto the surfaces of carbon fibers, esters of oleic acid and aliphatic monovalent alcohols, esters of oleyl alcohol and monovalent fatty acids, polyoxyalkylene bisphenol ethers or polyether esters as sizing agents, and a cement composite material having a bending strength of 300 kgf/cm.sup.2 or more which contains cut carbon fibers having a fiber length of 10 to 50 mm at a mixing volume ratio of the cut carbon fibers to the cement matrix in the range of 1 to 5%. According to the present invention, there are provided the carbon fibers for reinforcement of cement which have excellent adhesive properties to the cement, good process passage properties through a direct spray gun and good bundling properties and which are suitable for a direct spray method, and the cement composite material using the carbon fibers and having high bending strength.Type: GrantFiled: July 14, 1995Date of Patent: November 11, 1997Assignees: Petoca, Ltd., Takenaka CorporationInventors: Katsumi Takano, Yasushi Katsuta, Hideyuki Nakajima, Yoshikazu Nagata, Sadatoshi Ohno, Tadahiro Kakizawa, Toshio Yonezawa, Junichi Ida, Masaki Iwata
-
Patent number: 5652058Abstract: Carbon fiber rovings for reinforcement of concrete are here disclosed which are obtained by sizing, with a sizing agent, strands each consisting of 100 to 1,000 monofilaments of mesophase pitch-based carbon fibers, and then bundling the thus sized 5 to 100 strands into one roving.Type: GrantFiled: January 11, 1995Date of Patent: July 29, 1997Assignees: Petoca, Ltd., Takenaka CorporationInventors: Yoshikazu Nagata, Katsumi Takano, Sadatoshi Ohno, Toshio Yonezawa, Junichi Ida, Masaki Iwata