Patents by Inventor Takeshi Narushima
Takeshi Narushima 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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Publication number: 20240404715Abstract: A fuel assembly includes: a square cylinder channel box having a square cross-section; and fuel rods disposed in a square lattice shape and filled with a nuclear fuel material. The fuel rods includes: a first rod disposed in an outer layer in the box and a second rod disposed in an inner layer in the box and having a larger diameter than the first rod. An absolute value of a difference between a hydraulic equivalent diameter around the first rod and a hydraulic equivalent diameter between a surface in the box and the first rod is more than or equal to a value obtained by multiplying an absolute value of a difference between the hydraulic equivalent diameter around the first rod and the hydraulic equivalent diameter around the second rod by a ratio of a cross-sectional area of the inner layer to a cross-sectional area of the entire box.Type: ApplicationFiled: May 14, 2024Publication date: December 5, 2024Inventors: Yuki NARUSHIMA, Takeshi MITSUYASU, Tetsushi HINO
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Patent number: 9132392Abstract: The invention is a column contact apparatus for contacting gas with liquid in an upflow in a column container, containing two or more stages of honeycomb structural bodies in the column container in a vertical direction, a space portion formed between the respective stages of the honeycomb structural bodies and a flow-aligning portion as back-flow prevention means provided in the space portion between the respective stages such that the flow-aligning portion is not brought into contact with the honeycomb structural bodies, the flow-aligning portion including a plurality of holes with hole diameters of 0.5 mm to 8 mm.Type: GrantFiled: December 19, 2011Date of Patent: September 15, 2015Assignee: KAO CORPORATIONInventors: Takeshi Narushima, Yoichi Endo, Yoshihiro Nozawa, Minoru Goto, Toru Ugajin, Hiroyuki Shiomi, Kunio Matsui, Yasumitsu Sakuma
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Patent number: 9061964Abstract: The present invention discloses the method for producing a tertiary amine, using the column reactor packed with catalyst layers, containing supplying a liquid and a gaseous raw materials from the bottom of the column, reacting these raw materials in the column, and discharging the product from the top of the column, wherein the column reactor includes two or more honeycomb catalyst layers as the catalyst layers, one or more spaces between each honeycomb catalyst layer, and one or more rectifying sections that prevents a partial or whole back flow of the raw materials, arranged in each space without contacting with the honeycomb catalyst layer.Type: GrantFiled: July 10, 2014Date of Patent: June 23, 2015Assignee: KAO CORPORATIONInventors: Yasumitsu Sakuma, Wataru Nomura, Goshi Yamamoto, Takeshi Narushima
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Patent number: 8877978Abstract: The present invention discloses the method for producing a tertiary amine, using the column reactor packed with catalyst layers, containing supplying a liquid and a gaseous raw materials from the bottom of the column, reacting these raw materials in the column, and discharging the product from the top of the column, wherein the column reactor includes two or more honeycomb catalyst layers as the catalyst layers, one or more spaces between each honeycomb catalyst layer, and one or more rectifying sections that prevents a partial or whole back flow of the raw materials, arranged in each space without contacting with the honeycomb catalyst layer.Type: GrantFiled: December 19, 2011Date of Patent: November 4, 2014Assignee: Kao CorporationInventors: Yasumitsu Sakuma, Wataru Nomura, Goshi Yamamoto, Takeshi Narushima
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Publication number: 20140323764Abstract: The present invention discloses the method for producing a tertiary amine, using the column reactor packed with catalyst layers, containing supplying a liquid and a gaseous raw materials from the bottom of the column, reacting these raw materials in the column, and discharging the product from the top of the column, wherein the column reactor includes two or more honeycomb catalyst layers as the catalyst layers, one or more spaces between each honeycomb catalyst layer, and one or more rectifying sections that prevents a partial or whole back flow of the raw materials, arranged in each space without contacting with the honeycomb catalyst layer.Type: ApplicationFiled: July 10, 2014Publication date: October 30, 2014Inventors: Yasumitsu SAKUMA, Wataru NOMURA, Goshi YAMAMOTO, Takeshi NARUSHIMA
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Publication number: 20130289310Abstract: The present invention discloses the method for producing a tertiary amine, using the column reactor packed with catalyst layers, containing supplying a liquid and a gaseous raw materials from the bottom of the column, reacting these raw materials in the column, and discharging the product from the top of the column, wherein the column reactor includes two or more honeycomb catalyst layers as the catalyst layers, one or more spaces between each honeycomb catalyst layer, and one or more rectifying sections that prevents a partial or whole back flow of the raw materials, arranged in each space without contacting with the honeycomb catalyst layer.Type: ApplicationFiled: December 19, 2011Publication date: October 31, 2013Applicant: KAO CORPORATIONInventors: Yasumitsu Sakuma, Wataru Nomura, Goshi Yamamoto, Takeshi Narushima
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Publication number: 20130259774Abstract: The invention is a column contact apparatus for contacting gas with liquid in an upflow in a column container, containing two or more stages of honeycomb structural bodies in the column container in a vertical direction, a space portion formed between the respective stages of the honeycomb structural bodies and a flow-aligning portion as back-flow prevention means provided in the space portion between the respective stages such that the flow-aligning portion is not brought into contact with the honeycomb structural bodies, the flow-aligning portion including a plurality of holes with hole diameters of 0.5 mm to 8 mm.Type: ApplicationFiled: December 19, 2011Publication date: October 3, 2013Applicant: KAO CORPORATIONInventors: Takeshi Narushima, Yoichi Endo, Yoshihiro Nozawa, Minoru Goto, Toru Ugajin, Hiroyuki Shiomi, Kunio Matsui, Yasumitsu Sakuma
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Patent number: 7096919Abstract: An evaporative pattern casting process in which a casting process plan capable of attaining the optimal discharge of generated gas can easily be decided. The evaporative pattern casting process can cast a product, and includes pouring a molten metal in a mold in which a pattern made of an expanded synthetic resin is embedded in molding sand, and evaporating the pattern with the molten metal, while gas generated by evaporation of the pattern is discharged outside the mold through a discharging passage including discharged gas suppressing device. The ventilation of the discharging passage is controlled on the basis of the material, the shape of the pattern, the kind of the molten metal, and the temperature of the molten metal.Type: GrantFiled: November 15, 2002Date of Patent: August 29, 2006Assignee: Kao CorporationInventors: Takeshi Narushima, Yoshio Tomida, Masayuki Kato, Masahiko Kagitani
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Patent number: 7044190Abstract: Provided is an evaporative pattern casting process which ensures that smooth casting can be carried out without blow-back of a molten metal and a molding product having an excellent casting quality is obtained. The invention relates to an evaporative pattern casting process for casting a product, which comprises pouring a molten metal into a mold provided with a pattern with a through-hole, embedded in molding sand, and evaporating the pattern with the poured molten metal, gradually exhausting the gas generated by the evaporation of the pattern to the outside of the mold through an exhausting path provided with an exhaust gas-controlling means.Type: GrantFiled: November 21, 2001Date of Patent: May 16, 2006Assignee: Kao CorporationInventors: Shigeo Nakai, Masahiko Kagitani, Yoshimasa Takagi, Takeshi Narushima, Hitoshi Funada
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Publication number: 20050033562Abstract: On the basis of the controllability of wall thickness distribution of a mold product by a preform shape, the number of fabrication steps and the cost required for a design and trial formation of a preform forming metal mold are reduced by designing a preform shape such that a thickness distribution of the preform leads a wall thickness distribution of an aimed mold product to thereby obtain a mold product having an ideal rigidity and stability thereof.Type: ApplicationFiled: February 6, 2002Publication date: February 10, 2005Inventors: Takeshi Narushima, Yuko Tamiya, Naohide Nishimine, Hiroyuki Shiomi
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Publication number: 20040244934Abstract: Provided is an evaporative pattern casting process wherein a casting process plan capable of attaining the optimal discharge of generated gas can easily be decided. The present invention is an evaporative pattern casting process for casting a product, which comprises pouring a molten metal in a mold in which a pattern made of an expanded synthetic resin is embedded in molding sand, and evaporating the pattern with the molten metal, while gas generated by evaporation of the pattern is discharged outside the mold through a discharging passage comprising a discharged gas suppressing means, wherein the ventilation of the discharging passage is controlled on the basis of the material and the shape of the pattern and the kind of the molten metal and the temperature of the molten metal.Type: ApplicationFiled: March 26, 2004Publication date: December 9, 2004Inventors: Takeshi Narushima, Yoshio Tomida, Masayuki Kato, Masahiko Kagitami
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Patent number: 6361866Abstract: Provided are a halogen-free and phosphorus-free prepreg having good flame retardancy and having excellent electric characteristics and heat resistance, and a laminated board. The prepreg is formed of a resin composition comprising, as essential components, a phenol compound (I) having a structural unit of the formula (1), wherein R1 is hydrogen or phenol, R2 is a hydrogen or methyl and n is an integer of 0 to 10, an epoxy resin (II) prepared by epoxidizing the same phenol compound as said phenol compound, a metal hydrate (III) and a molybdenum compound (IV), and a substrate which is impregnated with said resin composition or to which said resin composition is applied. The laminated board for an insulating material, which is formed of the prepreg.Type: GrantFiled: March 13, 2000Date of Patent: March 26, 2002Assignees: Mitsubishi Gas Chemical Company, Inc., The Sherwin-Williams CompanyInventors: Masahiko Ogima, Takeshi Narushima, Norio Nagai
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Publication number: 20010028122Abstract: Simulations are performed for (1) the change in shape of the molten resin when a parison is formed by extruding said resin through the gap between the extruder die and core, (2) the change in shape of the molten resin due to clamping the mold around the extruded parison and blowing compressed air into the parison, and (3) the thermal deformation that will occur in the molded product due to cooling after the molded product, obtained when the molten resin has solidified in the mold, is removed from the mold in a high-temperature state. The shapes of the mold, extruder die and core that will give the desired shape of molded product are determined from the results of these simulations.Type: ApplicationFiled: March 6, 2001Publication date: October 11, 2001Applicant: KAO CORPORATIONInventors: Takeshi Narushima, Tsuyoshi Kimura, Naohide Nishimine