Patents by Inventor Ikuo Yamamoto
Ikuo Yamamoto 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: 20020189023Abstract: Excellent stain block property, WAQE resistance and yellowing resistance are imparted to a textile by a method of preparing a treated textile has the steps of (1) preparing a treatment liquid comprising a stain blocking agent and a sulfated castor oil and having pH of at most 7, (2) applying the treatment liquid to the textile, (3) treating the textile with steam, and (4) washing the textile with water and dehydrating the textile.Type: ApplicationFiled: January 30, 2002Publication date: December 19, 2002Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Fumihiko Yamaguchi, Ikuo Yamamoto, Teruyuki Fukuda, Kayo Kusumi
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Patent number: 6472019Abstract: Excellent water repellency, Oil repellency, stain block property and yellowing-resistance are imparted to a textile by a method of preparing a treated textile has the steps of (1) preparing a treatment liquid containing a water- and oil-repellent agent and a stain blocking agent, (2) bringing a pH of the treatment liquid to at most 7, (3) applying the treatment liquid to the textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile. The treatment liquid contains a sulfated fatty acid compound.Type: GrantFiled: March 12, 2002Date of Patent: October 29, 2002Assignee: Daikin Industries, Inc.Inventors: Fumihiko Yamaguchi, Ikuo Yamamoto, Kayo Kusumi
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Patent number: 6355753Abstract: A stainproofing polymer having: (i) a reactive group selected from the group consisting of a carboxyl group or its salt, a hydroxyl group, an epoxy group, a phosphoric acid group, an alkoxysilane group, an imine group, a sulfonic acid group, an amino group, an isocyanate group and a blocked isocyanate group; and (ii) a fluoroalkyl group, characterized in that a melting point of a monomer having a fluoroalkyl group, which constitutes the polymer, is at least 70° C. and a melting point of the stainproofing polymer is at least 50° C., gives durability capable of maintaining sufficient water- and oil-repellency after cleaning.Type: GrantFiled: January 19, 2000Date of Patent: March 12, 2002Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Norihito Otsuki, Teruyuki Fukuda
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Patent number: 6284853Abstract: The present invention provides a copolymer whose durability on cleaning is improved while maintaining good water- and oil-repellency. Disclosed is a copolymer having: (i) a fluoroalkyl group, (ii) a urethane or urea linkage, and (iii) a functional group selected from the group consisting of a carboxyl group, a carboxylic anhydride group, an epoxy group, a phosphoric group, an alkoxysilane group, a imine group, a sulfonic group, an amino group, an isocyanate group and a chlorine atom, and a stainproof agent containing the copolymer as an active component.Type: GrantFiled: January 29, 1998Date of Patent: September 4, 2001Assignee: Daikin Industries, Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Norihito Otsuki, Teruyuki Fukuda
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Patent number: 6130298Abstract: A stainproof treatment agent containing:(A) a fluoroalkyl group-containing copolymer having(I) a repeating unit derived from a monomer having a fluoroalkyl group,(II) a repeating unit derived from a monomer containing no fluorine,(III) a repeating unit derived from vinyl chloride, and(IV) a repeating unit derived from a crosslinking monomer; and(B) an acrylic copolymer containing no fluorine, has durability so that sufficient water- and oil-repellency as well as stainproof properties are maintained before and after cleaning.Type: GrantFiled: November 16, 1998Date of Patent: October 10, 2000Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Mitsuhiro Usugaya, Taro Sano
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Patent number: 6089178Abstract: A submersible vehicle is a type having swinging wings. The vehicle is provided with a vehicle main body, a plurality of swinging wings provided for the main body and arranged in series, rotatable shafts located at front edges of the swinging wings, respectively, actuators for driving the shafts independently of one another, and a wing controller for controlling the actuators in such a manner that the wings enable to swing in a flexible manner like the tail fin of a fish, thereby producing a desired propelling force and performing a steering operation.Type: GrantFiled: August 28, 1998Date of Patent: July 18, 2000Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Ikuo Yamamoto, Katsuya Daigo, Yuuzi Terada
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Patent number: 6048941Abstract: The present invention provides a stainproofing agent composition having the durability capable of maintaining sufficient water- and oil-repellency as well as stainproofing properties before and after cleaning. Disclosed is a stainproofing agent composition containing(A) a polymer having a repeating unit derived from maleate or fumarate having at least one fluoroalkyl group;(B) a fluoroalkyl group-containing copolymer having:(I) a repeating unit derived from a monomer containing a fluoroalkyl group,(II) a repeating unit derived from a monomer containing no fluorine,(III) a repeating unit derived from vinyl chloride, and(IV) a repeating unit derived from a crosslinking monomer; and(C) an acrylic copolymer containing no fluorine, which is optionally present.Type: GrantFiled: April 8, 1998Date of Patent: April 11, 2000Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Mitsuhiro Usugaya
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Patent number: 6033775Abstract: A film containing a first layer containing a propylene-based block copolymer (a) obtainable by forming 40 to 85% by weight of a propylene-ethylene copolymer portion (A) having a content of repeating unit derived from ethylene of 1.5 to 6.0% by weight in a first step, and then forming 15 to 60% by weight of a propylene-ethylene copolymer portion (B) having a content of repeating unit derived from ethylene of 7 to 17% by weight in a second step, the intrinsic viscosity of portion (B) being 2 to 5 dl/g, and the ratio of the intrinsic viscosity of portion (B) to the intrinsic viscosity of portion (A) being 0.5 to 1.8, and a second layer containing a polyethylene type resin (b) laminated on at least one surface of the first layer, has a good balance between heat resistance, flexibility, mechanical strength, transparency, cuttability, original-shape resuming property and other desirable properties, and is suitably used for wrapping materials such as foods.Type: GrantFiled: November 28, 1997Date of Patent: March 7, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Haruo Hayashida, Eisuke Shiratani, Ikuo Yamamoto, Akihiro Ichige
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Patent number: 6019909Abstract: A novel fluorinated hydrocarbon compound containing an oxygen or sulfur atom in its molecule, produced by the nucleophilic reaction of a fluorine compound with a hydrocarbon compound. This compound is useful as a lubricant for various applications and particularly excellent as an oil for refrigerators wherein hydrochlorofluorocarbon is used as the refrigerant and as a magnetic recording medium lubricant.Type: GrantFiled: July 21, 1995Date of Patent: February 1, 2000Assignee: Daikin Industries, Ltd.Inventors: Satoshi Ide, Katsuki Fujiwara, Masayuki Yamana, Yoshitaka Honda, Ikuo Yamamoto, Fumihiko Yamaguchi, Eiji Seki, Tatsuya Otsuka, Satoshi Ishida
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Patent number: 6013732Abstract: The present invention provides a stainproofing agent having the durability capable of maintaining sufficient water- and oil-repellency as well as stainproofing properties before and after cleaning. Disclosed is a stainproofing agent containing (A) a fluroalkyl group-containg copolymer having (I) a structure unit derived from a monomer having a fluoroalkyl group, (II) a structure unit derived from a monomer containing no fluorine, (III) a structure unit derived from vinyl chloride, and (IV) a structure unit derived from a crosslinking monomer; (B) a urethane compound having a fluoroalkyl group, or a copolymer having (V) a structure unit derived from a monomer having a fluoroalkyl group and a carbon-carbon double bond, and (VI) a structure unit derived from a monomer which contains no fluorine atom and has at least one urethane or urea linkage and one carbon-carbon double bond; and (C) an acrylic copolymer containing no fluorine.Type: GrantFiled: January 16, 1998Date of Patent: January 11, 2000Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Teruyuki Fukuda
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Patent number: 5637142Abstract: A surface treating agent composition of fluorine-containing-oil-in-hydrocarbon-containing-oil type emulsion prepared by emulsifying a liquid fluorine-containing oil and a liquid hydrocarbon-containing oil by using a polymeric surfactant having a fluorine-containing segment and a hydrocarbon-containing segment in a molecule has excellent long-term stability.Type: GrantFiled: May 11, 1995Date of Patent: June 10, 1997Assignee: Daikin Industries, Ltd.Inventors: Motonobu Kubo, Masamichi Morita, Masayuki Yamana, Eiji Sakamoto, Ikuo Yamamoto
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Patent number: 5525150Abstract: A water-based mold release agent, which contains a halogen-containing polyether having at least one functional group as a main component, gives no environmental pollution, has excellent dispersibility, storage stability and mold releasability and gives a good surface state to a shaped article of a polymeric material.Type: GrantFiled: February 22, 1994Date of Patent: June 11, 1996Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Shingo Fujiwara
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Patent number: 5378453Abstract: A composition for preventing graying of the hair and restoring grayed hair to its natural color comprises an effective amount of one member selected from the group consisting of cAMP compounds such as 8-butylthio cAMP-Na or 8-methoxy cAMP-Na and water. The composition can prevent graying of the hair and restoring grayed hair to its natural color upon application to the scalp, the effective component is very stable even in the form of compositions containing water and the composition does not cause quality deteriorations such as giving out of bad smell.Type: GrantFiled: March 7, 1994Date of Patent: January 3, 1995Assignee: Lion CorporationInventors: Keikichi Sugiyama, Koji Takada, Ikuo Yamamoto
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Patent number: 5376643Abstract: Methods and compositions for restoring grayed hair to its natural color comprising at least one compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and each represents a hydrogen atom, an acyl group having 5 to 15 carbon atoms derived from a monocarboxylic acid having 5 to 15 carbon atoms or an acyl group having 2 to 15 carbon atoms derived from a dicarboxylic acid having 2 to 15 carbon atoms or an alkyl group having 1 to 2 carbon atoms; X.sub.1 and X.sub.2, respectively, represent a hydrogen atom, a halogen, or a mercapto group; with the proviso that when R.sub.1, R.sub.2 and R.sub.3 and X.sub.1 are hydrogen atoms at the same time, X.sub.2 is not a halogen atom or a mercapto group, and M.sub.1 represents a hydrogen atom, an alkali metal or tris(hydroxymethyl)aminomethane.Type: GrantFiled: September 20, 1990Date of Patent: December 27, 1994Assignee: Lion CorporationInventors: Keikichi Sugiyama, Koji Takada, Ikuo Yamamoto
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Patent number: 5318776Abstract: A composition for preventing graying of the hair and restoring grayed hair to its natural color comprises an effective amount of one member selected from the group consisting of cAMP compounds such as 8-butylthio cAMP-Na or 8-methoxy cAMP-Na and water. The composition can prevent graying of the hair and restoring grayed hair to its natural color upon application to the scalp, the effective component is very stable even in the form of compositions containing water and the composition does not cause quality deteriorations such as giving out of bad smell.Type: GrantFiled: April 27, 1993Date of Patent: June 7, 1994Assignee: Lion CorporationInventors: Keikichi Sugiyama, Koji Takada, Ikuo Yamamoto
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Patent number: 5227516Abstract: A fluorine-containing polyether of the formula:R.sub.f --X--A (I)orA--X--R'.sub.f --X--A (II)wherein R.sub.f and R'.sub.f are each a linear group containing a perfluoroalkyl polyether group, X is --CF.sub.2 COO--, --C.sub.2 F.sub.4 COO-- or --CF.sub.2 CF.sub.2 -- and A is a group containing a polyalkylene glycol group. The polyether can be used as a nonionic surfactant which is compatible with a perfluoroalkyl polyether.Type: GrantFiled: December 18, 1991Date of Patent: July 13, 1993Assignee: Daikin Industries Ltd.Inventors: Takashi Tohzuka, Sueyoshi Ishikawa, Ikuo Yamamoto
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Patent number: 5214216Abstract: A fluorine-containing polyether of the formula:R.sub.f --X--A (I)orA--X--R'.sub.f --X--A (II)wherein R.sub.f and R'.sub.f are each a linear group containing a perfluoroalkyl polyether group, X is --CF.sub.2 COO--, --C.sub.2 F.sub.4 COO-- or --CF.sub.2 CF.sub.2 -- and A is a group containing a polyalkylene glycol group. The polyether can be used as a nonionic surfactant which is compatible with a perfluoroalkyl polyether.Type: GrantFiled: July 24, 1990Date of Patent: May 25, 1993Assignee: Daikin Industries Ltd.Inventors: Takashi Tohzuka, Sueyoshi Ishikawa, Ikuo Yamamoto
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Patent number: 5066410Abstract: The present invention provides an oil for a refrigerating machine using a hydrogen-containing halogenated hydrocarbon as a refrigerant, the oil comprising a fluorine-containing polyether having repeated units represented by the formula(--CF.sub.2 CF.sub.2 CF.sub.2 O).sub.l (CHFCF.sub.2 CF.sub.2)).sub.m (CH.sub.2 CF.sub.2 CF.sub.2 O).sub.Type: GrantFiled: May 1, 1990Date of Patent: November 19, 1991Assignee: Daikin Industries, Ltd.Inventors: Yukio Omure, Katsuki Fujiwara, Tatsumi Tsuchiya, Satoshi Hishida, Masahiro Noguchi, Ikuo Yamamoto
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Patent number: 5004554Abstract: A fluorine-containing polyether of the formula:R.sub.f.sup.1 CF.sub.2 CF.sub.2 COOR.sub.f.sup.2 (I)orR.sub.f.sup.2 OCO--CF.sub.2 CF.sub.2 R'.sub.f.sup.1 CF.sub.2 CF.sub.2 --COOR.sub.f.sup.2 (II)wherein R.sub.f.sup.1 and R'.sub.f.sup.1 are each a group containing a perfluoroalkyl polyether group, and R.sub.f.sup.2 is a fluorine-containing alkyl group or a fluorine-containing ether group, can be used as a lubricant which has good properties such as lubricity and durability properties.Type: GrantFiled: July 24, 1990Date of Patent: April 2, 1991Assignee: Daikin Industries Ltd.Inventors: Takashi Tohzuka, Ikuo Yamamoto, Yoshihiko Misugi
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Patent number: 4631172Abstract: Alloys for galvanic anode of this invention include those which contain zinc of 1.0 to 10%, magnesium of 0.1 to 6%, indium of 0.01 to 0.04%, tin of 0.005 to 0.15%, silicon of 0.09 to 1.0%, and calcium or barium or both of 0.005 to 0.45%, the balance being aluminum, and those which contain zinc of 1.0 to 10%, indium of 0.01 to 0.05%, magnesium of 0.05 to 6%, silicon of 0.07 to 1.0%, and calcium or barium or both of 0.01 to 0.5%, the balance being aluminum. The above mentioned alloys of this invention exhibit an exceedingly large output of electric current as compared with conventional alloys, hold the dissolving surfaces uniformly and are exceedingly useful for anticorrosion of large-sized steel structures.Type: GrantFiled: May 1, 1985Date of Patent: December 23, 1986Assignees: Nadagawa Corrosion Protecting Co., Ltd., Mitsui Mining & Smelting Co.Inventors: Ikuo Yamamoto, Takehito Umino, Yoshio Shinoda, Hisao Yoshino