Patents by Inventor Kengo Kobayashi
Kengo Kobayashi 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: 20090071258Abstract: A pressure sensor for an extracorporeal circulating circuit includes a liquid chamber, a pressure measuring means, and a liquid flow path. The liquid chamber includes a reference surface not deformed by a pressure in the extracorporeal circulating circuit, a deforming surface disposed separated from the reference surface and deformed at least partially by a pressure in the extracorporeal circulating circuit, a first connection surface that joins the deforming surface with the reference surface to form a closed liquid-tight space inside them and is not deformed by a pressure in the extracorporeal circulating circuit, a liquid inflowing port provided in the side surface of the first connection surface, and a liquid outflowing port disposed away by ½ to less than one round from the inflowing port in the flowing direction of liquid introduced along the inner periphery of the side surface of the first connection surface.Type: ApplicationFiled: April 18, 2007Publication date: March 19, 2009Applicant: ASAHI KASEI KURARAY MEDICAL CO., LTD.Inventors: Masaaki Kouda, Kengo Kobayashi
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Patent number: 7503381Abstract: There is disclosed a rust prevention and hydrophilization treatment method for a flux-brazed aluminum-made heat exchanger which comprises subjecting the same to a rust prevention treatment by the use of a zirconium base compound and/or a titanium base compound, and thereafter subjecting the same to a hydrophilization treatment by means of a hydrophilization treatment agent composition containing the under-mentioned components: (1) 40 to 90% by mass of polyvinyl alcohol having a degree of saponification of at least 90%; (2) 3 to 40% by mass of polyoxyalkylene-modified polyvinyl alcohol in which 0.01 to 20% of pendant groups are polyoxyalkylene ether groups; (3) 1 to 30% by mass of an inorganic cross-linking agent which reacts with hydroxyl groups of the polyvinyl alcohol and modified polyvinyl alcohol; and (4) 1 to 20% by mass of a guanidine compound and/or a salt thereof.Type: GrantFiled: August 4, 2005Date of Patent: March 17, 2009Assignees: Nippon Paint Co., Ltd., Denso CorporationInventors: Toshio Inbe, Norizumi Matsui, Kengo Kobayashi, Osamu Kasebe
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Patent number: 7353863Abstract: A method of surface treating an aluminum alloy base body of an heat exchanger which method enables an etching procedure to be carried out uniformly and quickly and a corrosion-resistant chemical conversion coating to be formed, is effected by pretreating the Al heat exchanger base body with an aqueous pre-treating liquid having a pH of 9.0 or less, etching the pretreated base body with an aqueous alkaline solution having a pH of 9.0 or more, and then subjecting the etched base body to a chemical conversion treatment or a hydrophilicity-enhancing treatment.Type: GrantFiled: May 12, 2004Date of Patent: April 8, 2008Assignee: Denso CorporationInventors: Kengo Kobayashi, Osamu Kasebe, Hiroyoshi Sugawara, Kazuhisa Uchiyama, Kenji Karube, Kazunari Hamamura, Kensuke Shimoda
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Publication number: 20060027629Abstract: There is disclosed a rust prevention and hydrophilization treatment method for a flux-brazed aluminum-made heat exchanger which comprises subjecting the same to a rust prevention treatment by the use of a zirconium base compound and/or a titanium base compound, and thereafter subjecting the same to a hydrophilization treatment by means of a hydrophilization treatment agent composition containing the under-mentioned components: (1) 40 to 90% by mass of polyvinyl alcohol having a degree of saponification of at least 90%; (2) 3 to 40% by mass of polyoxyalkylene-modified polyvinyl alcohol in which 0.01 to 20% of pendant groups are polyoxyalkylene ether groups; (3) 1 to 30% by mass of an inorganic cross-linking agent which reacts with hydroxyl groups of the polyvinyl alcohol and modified polyvinyl alcohol; and (4) 1 to 20% by mass of a guanidine compound and/or a salt thereof.Type: ApplicationFiled: August 4, 2005Publication date: February 9, 2006Inventors: Toshio Inbe, Norizumi Matsui, Kengo Kobayashi, Osamu Kasebe
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Patent number: 6899166Abstract: On the surface of a heat exchanging portion in a heat exchanger, a film made of a polyaniline is formed. When the heat exchanger operates, condensed water is adhered on the surface of the heat exchanger, and contacts the film made of the polyaniline. Accordingly, oxygen dissolved in the condensed water becomes active oxygen by the polyaniline, and organic substances contained in the condensed water is decomposed. Thus, an amount of organic substances attached to a surface of the heat exchanger can be reduced in low cost without equipment extension.Type: GrantFiled: August 29, 2001Date of Patent: May 31, 2005Assignees: Denso CorporationInventors: Hitoshi Kuno, Yasushi Okamoto, Tomomi Takagi, Kengo Kobayashi, Toshiya Nagasawa, Kenichi Morita
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Publication number: 20040256089Abstract: A method of surface treating an aluminum alloy base body of an heat exchanger which method enables an etching procedure to be carried out uniformly and quickly and a corrosion-resistant chemical conversion coating to be formed, is effected by pretreating the Al heat exchanger base body with an aqueous pre-treating liquid having a pH of 9.0 or less, etching the pretreated base body with an aqueous alkaline solution having a pH of 9.0 or more, and then subjecting the etched base body to a chemical conversion treatment or a hydrophilicity-enhancing treatment.Type: ApplicationFiled: May 12, 2004Publication date: December 23, 2004Inventors: Kengo Kobayashi, Osamu Kasebe, Hiroyoshi Sugawara, Kazuhisa Uchiyama, Kenji Karube, Kazunari Hamamura, Kensuke Shimoda
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Patent number: 6698507Abstract: An aluminum alloy heat exchanger having excellent hydrophilicity and resistance to absorption or impregnation of tobacco odorous components has an organic hydrophilic coating layer formed on at least a portion of a base body of the heat exchanger and containing (A) at least one chitosan compound, (B) at least one two or more carboxyl group-containing organic compound and (C) at least one hydrophilic polymeric substance different from the components (A) and (B), in which the total solid content of components (A) and (B) is 20 mass % or more and the solid content of component (C) is 0.1 to 10 mass %.Type: GrantFiled: January 2, 2003Date of Patent: March 2, 2004Assignees: Nihon Parkerizing Co., Ltd., Denso CorporationInventors: Kazunari Hamamura, Kengo Kobayashi, Hiroyoshi Sugawara, Osamu Kasebe, Kazuhisa Uchiyama
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Patent number: 6689481Abstract: An aluminum alloy heat exchanger resistive to impregnation of tobacco odor includes a base body of an aluminum alloy heat exchanger and an organic hydrophilic coating layer formed on the surface of the heat exchanger base body, and including a component (A) containing a chitosan compound selected from chitosan and derivatives thereof, and a component (B) containing a carboxylic compound having two or more carboxyl groups per molecule thereof, in a total solid amount of the components (A) and (B) of 20% by mass or more, based on the total amount by mass of the organic hydrophilic coating layer.Type: GrantFiled: November 7, 2001Date of Patent: February 10, 2004Assignees: Nihon Parkerizing Co., Ltd., Denso CorporationInventors: Kazunari Hamamura, Kengo Kobayashi, Hiroyoshi Sugawara, Osamu Kasebe, Kazuhisa Uchiyama
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Patent number: 6659171Abstract: A hydrophilic modification method comprising a step of forming a coat having a solid coat amount of 0.02 to 3 g/m2 on a heat exchanger with a modifier for hydrophilicity after treatment for rust prevention thereof wherein said modifier for hydrophilicity comprises a modified polyvinyl alcohol (A) having, on a side chain thereof, a group represented by the formula (I): in the formula, n represents an integer of 1 to 500, R1 represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, and R2 represents a hydrogen atom or a methyl group, and at least one member (B) selected from the group consisting of phosphorus compound salts and boron compound salts of Ca, Al, Mg, Fe and Zn, said group represented by the formula (I) accounting for 0.01 to 20 mole percent relative to hydroxyl and acetoxy groups contained in said modified polyvinyl alcohol.Type: GrantFiled: March 26, 2002Date of Patent: December 9, 2003Assignees: Nippon Paint Co., Ltd., Denso CorporationInventors: Toshio Inbe, Susumu Maekawa, Akira Ushio, Koichi Saito, Norizumi Matsui, Osamu Kasebe, Kengo Kobayashi, Hiroyoshi Sugawara, Kazuhisa Uchiyama
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Publication number: 20030150600Abstract: An aluminum alloy heat exchanger having excellent hydrophilicity and resistance to absorption or impregnation of tobacco odorous components has an organic hydrophilic coating layer formed on at least a portion of a base body of the heat exchanger and containing (A) at least one chitosan compound, (B) at least one two or more carboxyl group-containing organic compound and (C) at least one hydrophilic polymeric substance different from the components (A) and (B), in which the total solid content of components (A) and (B) is 20 mass % or more and the solid content of component (C) is 0.1 to 10 mass %.Type: ApplicationFiled: January 2, 2003Publication date: August 14, 2003Inventors: Kazunari Hamamura, Kengo Kobayashi, Hiroyoshi Sugawara, Osamu Kasebe, Kazuhisa Uchiyama
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Publication number: 20030037914Abstract: A hydrophilic modification method comprisingType: ApplicationFiled: March 26, 2002Publication date: February 27, 2003Applicant: NIPPON PAINT CO., LTD.Inventors: Toshio Inbe, Susumu Maekawa, Akira Ushio, Koichi Saito, Norizumi Matsui, Osamu Kasebe, Kengo Kobayashi, Hiroyoshi Sugawara, Kazuhisa Uchiyama
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Publication number: 20020090523Abstract: An aluminum alloy heat exchanger resistive to impregnation of tobacco odor includes a base body of an aluminum alloy heat exchanger and an organic hydrophilic coating layer formed on the surface of the heat exchanger base body, and including a component (A) containing a chitosan compound selected from chitosan and derivatives thereof, and a component (B) containing a carboxylic compound having two or more carboxyl groups per molecule thereof, in a total solid amount of the components (A) and (B) of 20% by mass or more, based on the total amount by mass of the organic hydrophilic coating layer.Type: ApplicationFiled: November 7, 2001Publication date: July 11, 2002Inventors: Kazunari Hamamura, Kengo Kobayashi, Hiroyoshi Sugawara, Osamu Kasebe, Kazuhisa Uchiyama
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Patent number: 6411353Abstract: A liquid crystal display device includes a liquid crystal display element having a liquid crystal layer sandwiched between a pair of upper and lower substrates, a flexible circuit board disposed around a periphery of the liquid crystal display element, an illuminating light source having a line light source, a light guide and a reflector and disposed behind the liquid crystal display element, a metal upper case having a sidewall bent back and a display window, a resin lower case for housing the illuminating light source. The upper and lower cases are clamped by crimping plural nails formed in the sidewall of the upper case at an outer surface of the lower case after stacking the liquid crystal display element, the flexible circuit board and the illuminating light source between the upper and lower cases.Type: GrantFiled: April 20, 1999Date of Patent: June 25, 2002Assignee: Hitachi, Ltd.Inventors: Katsuhiko Yarita, Kaoru Hasegawa, Kengo Kobayashi, Yoshio Toriyama
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Patent number: 6411359Abstract: A frame area of a liquid crystal display device is reduced by improving the layouts of extraction lines DTM of drain wiring of a TFT liquid crystal display device, a driving IC of the TFT liquid crystal display device and a flexible board FPC2 for a drain driving circuit of the TFT liquid crystal display device.Type: GrantFiled: April 13, 1999Date of Patent: June 25, 2002Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Kengo Kobayashi, Kaoru Hasegawa, Katsuhiko Yarita, Yoshio Toriyama
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Publication number: 20020062951Abstract: On the surface of a heat exchanging portion in a heat exchanger, a film made of a polyaniline is formed. When the heat exchanger operates, condensed water is adhered on the surface of the heat exchanger, and contacts the film made of the polyaniline. Accordingly, oxygen dissolved in the condensed water becomes active oxygen by the polyaniline, and organic substances contained in the condensed water is decomposed. Thus, an amount of organic substances attached to a surface of the heat exchanger can be reduced in low cost without equipment extension.Type: ApplicationFiled: August 29, 2001Publication date: May 30, 2002Inventors: Hitoshi Kuno, Yasushi Okamoto, Tomomi Takagi, Kengo Kobayashi, Toshiya Nagasawa, Kenichi Morita
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Patent number: 6306226Abstract: An aluminum-containing metal material for, for example, a heat-exchanger for motorcars is surface-treated by chemically etching an Al-containing metal material surface, forming a first protective layer on the etched surface by a chemical conversion treatment with an aqueous solution of Zr phosphate or Ti phosphate, and coating the first protective layer with a second protective layer containing a hydrophilic resin including non-cross-linked hydrophilic functional groups and at least partially cross-linked reactive functional groups different from the hydrophilic functional groups, to impart high hydrophilicity and resistance to odor generation and corrosion to the aluminum-containing metal material surface.Type: GrantFiled: October 23, 1998Date of Patent: October 23, 2001Assignees: Nihon Papkerizing Co., Ltd., Denso CorporationInventors: Yasuo Iino, Hiroki Kojima, Tomohiro Ohsako, Hiroyoshi Sugawara, Kengo Kobayashi
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Patent number: 5087675Abstract: A graft copolymer produced by polymerizing an ethylenically unsaturated monomer in the presence of a fluorine-containing resin having reactive double bonds via a urethane linkage is excellent in transparency and pigment dispersibility and can provide a coating composition excellent in weather resistance.Type: GrantFiled: February 27, 1990Date of Patent: February 11, 1992Assignee: Hitachi Chemical Company, Ltd.Inventors: Ohwada Takeo, Kengo Kobayashi
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Patent number: 4973624Abstract: A resin composition for coating comprising (A) a polyester-modified vinyl copolymer obtained by copolymerization of (a) a polyester resin having 5 to 60% by weight of oil or fatty acid component with special physical limitations, (b) a polymerizable unsaturated monomer having at least one tertiary amino group, (c) a polymerizable unsaturated monomer having at least one carboxyl group, and (d) an unsaturated monomer copolymerizable with the components (b) or (c), and (B) an epoxy resin can be cured at room temperature or with slight heating to give a coating film excellent in dispersibility of pigment having large oil absorption.Type: GrantFiled: February 24, 1989Date of Patent: November 27, 1990Assignee: Hitachi Chemical Company, Ltd.Inventors: Eiichi Ohtani, Masayuki Mogami, Kengo Kobayashi, Shigeyoshi Tanaka
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Patent number: 4923929Abstract: A graft copolymer produced by polymerizing an ethylenically unsaturated monomer in the presence of a fluorine-containing resin having reactive double bonds via a urethane linkage is excellent in transparency and pigment dispersibility and can provide a coating composition excellent in weather resistance.Type: GrantFiled: June 12, 1987Date of Patent: May 8, 1990Assignee: Hitachi Chemical Co.Inventors: Takeo Ohwada, Kengo Kobayashi
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Patent number: 4795785Abstract: A coating resin composition comprising a chlorinated polyolefin-containing polymer obtained by polymerizing a monomer blend containing 0.01 to 5% by weight of an unsaturated organic silane compound in the presence of a chlorinated polyolefin resin having a chlorine content of 50% by weight or less can yield molded articles or coatings excellent in adhesiveness, gloss, resistance to gasoline, resistance to alcohol, or the like.Type: GrantFiled: December 3, 1986Date of Patent: January 3, 1989Assignee: Hitachi Chemical Company, Ltd.Inventors: Toshihiko Ito, Masayuki Mogami, Kengo Kobayashi