Patents by Inventor Osamu Kasebe
Osamu Kasebe 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: 8741445Abstract: Provided is an aluminum or aluminum alloy material having a surface treatment coating film on a surface of a substrate formed by an aluminum or aluminum alloy. The aluminum or aluminum alloy material has: a substrate formed by an aluminum or aluminum alloy; and a first protective layer and a second protective layer in the order on a surface of the substrate, wherein the first protective layer is a conversion coating film including vanadium and at least one or more types of metals selected from titanium, zirconium, and hafnium, the second protective layer is an organic coating film having a composition that includes (1) a chitosan derivative and a solubilizing agent, (2) a modified polyvinyl alcohol formed by graft polymerization of a hydrophilic polymer to a side chain of polyvinyl alcohol, and (3) a water-soluble crosslinking agent.Type: GrantFiled: February 8, 2011Date of Patent: June 3, 2014Assignees: Nihon Parkerizing Co., Ltd., Denso CorporationInventors: Hirokatsu Bannai, Yoshiyuki Okamoto, Kenji Nakamura, Takayuki Hirose, Osamu Kasebe, Shin Nishiya, Kengo Kobayashi
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Publication number: 20130034743Abstract: Provided is an aluminum or aluminum alloy material having a surface treatment coating film on a surface of a substrate formed by an aluminum or aluminum alloy. The aluminum or aluminum alloy material has: a substrate formed by an aluminum or aluminum alloy; and a first protective layer and a second protective layer in the order on a surface of the substrate, wherein the first protective layer is a conversion coating film including vanadium and at least one or more types of metals selected from titanium, zirconium, and hafnium, the second protective layer is an organic coating film having a composition that includes (1) a chitosan derivative and a solubilizing agent, (2) a modified polyvinyl alcohol formed by graft polymerization of a hydrophilic polymer to a side chain of polyvinyl alcohol, and (3) a water-soluble crosslinking agent.Type: ApplicationFiled: February 8, 2011Publication date: February 7, 2013Applicants: DENSO CORPORATION, NIHON PARKERIZING CO., LTD.Inventors: Hirokatsu Bannai, Yoshiyuki Okamoto, Kenji Nakamura, Takayuki Hirose, Osamu Kasebe, Shin Nishiya, 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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Patent number: 7175914Abstract: In a heat exchanger having tubes and fins, a polyaniline film made of polyaniline and/or a derivative thereof is formed on the surfaces of the tubes and the fins. This polyaniline film is imparted with at least one hydrophilic functional group selected from the class consisting of a primary amino group, a secondary amino group, a tertiary amino group, an ammonium group, a nitric acid group, a carboxyl group, a sulfonic acid group, a phosphonic acid group and a hydroxyl group. Accordingly, the surfaces of the tubes and the fins has good water wettability while maintaining deodorizing and sterilizing functions.Type: GrantFiled: October 29, 2002Date of Patent: February 13, 2007Assignee: Denso CorporationInventors: Tomomi Takagi, Hitoshi Kuno, Hiroaki Fukuda, Yasushi Furukawa, Osamu Kasebe
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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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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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Publication number: 20040202839Abstract: In a heat exchanger having tubes and fins, a polyaniline film made of polyaniline and/or a derivative thereof is formed on the surfaces of the tubes and the fins. This polyaniline film is imparted with at least one hydrophilic functional group selected from the class consisting of a primary amino group, a secondary amino group, a tertiary amino group, an ammonium group, a nitric acid group, a carboxyl group, a sulfonic acid group, a phosphonic acid group and a hydroxyl group. Accordingly, the surfaces of the tubes and the fins has good water wettability while maintaining deodorizing and sterilizing functions.Type: ApplicationFiled: October 29, 2002Publication date: October 14, 2004Inventors: Tomomi Takagi, Hitoshi Kuno, Hiroaki Fukuda, Yasushi Furukawa, Osamu Kasebe
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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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Patent number: 6470697Abstract: When an after-evaporation temperature TE remains below the wet-bulb temperature Twet, the compressor 231 is intermittently operated for a predetermined time after the elapse of a first time To from compressor 231 stopping. On the other hand, when the after-evaporation temperature TE is higher than the wet-bulb temperature Twet, the intermittent operation mode stops. This reduces dispersion of offensive smells from the evaporator.Type: GrantFiled: August 3, 2001Date of Patent: October 29, 2002Assignee: Denso CorporationInventors: Hiroki Nakamura, Hiroshi Nonoyama, Yoshimitsu Inoue, Yuji Takeo, Mitsuyo Oomura, Eiji Takahashi, Toshinobu Homan, Osamu Kasebe
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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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Publication number: 20010049943Abstract: When an after-evaporation temperature TE remains below the wet-bulb temperature Twet, the compressor 231 is intermittently operated for a predetermined time after the elapse of a first time To from compressor 231 stopping. On the other hand, when the after-evaporation temperature TE is higher than the wet-bulb temperature Twet, the intermittent operation mode stops. This reduces dispersion of offensive smells from the evaporator.Type: ApplicationFiled: August 3, 2001Publication date: December 13, 2001Inventors: Hiroki Nakamura, Hiroshi Nonoyama, Yoshimitsu Inoue, Yuji Takeo, Mitsuyo Oomura, Eiji Takahashi, Toshinobu Homan, Osamu Kasebe
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Publication number: 20010047659Abstract: When an after-evaporation temperature TE remains below the wet-bulb temperature Twet, the compressor 231 is intermittently operated for a predetermined time after the elapse of a first time To from compressor 231 stopping. On the other hand, when the after-evaporation temperature TE is higher than the wet-bulb temperature Twet, the intermittent operation mode stops. This reduces dispersion of offensive smells from the evaporator.Type: ApplicationFiled: April 27, 2001Publication date: December 6, 2001Inventors: Hiroki Nakamura, Hiroshi Nonoyama, Yoshimitsu Inoue, Yuji Takeo, Mitsuyo Oomura, Eiji Takahashi, Toshinobu Homan, Osamu Kasebe
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Patent number: 4821531Abstract: A structural arrangement for an evaporator producing a uniform temperature gradient across its width. The structure is arranged so as to even out the flow of refrigerant within the evaporator. A first tank portion has a inlet and a second tank portion has a outlet. One end of each of plural tubes are connected thereto. A plurality of tubes allow refrigerant to flow from the first tank portion to the second. The tubes are arranged so as to provide equal flow distances for refrigerant across the evaporator, taking into account the directions of flow in the first and second tank portions. In a second embodiment, the inlet port and the outlet port are disposed at the first tank portion and the second tank portion respectively in such a manner that directions of the refrigerant flow within the first tank portion and the second tank portion are opposite to each other.Type: GrantFiled: December 9, 1987Date of Patent: April 18, 1989Assignee: Nippondenso Co., Ltd.Inventors: Yoshiyuki Yamauchi, Toshio Ohhara, Shinji Ogawa, Isao Kuroyanagi, Haruhiko Otsuka, Toshio Takahashi, Osamu Kasebe