Patents by Inventor Toru Tagawa
Toru Tagawa 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: 6251510Abstract: There is provided a process for preparing a resin sheet for thermoforming which can be fabricated into containers and lids or caps for containers in the food packaging industries, particularly those which are resistant to heating in a microwave oven, which containers and lids or caps are excellent in transparency, antifog property, impact resistance, and heat resistance are obtained. A process for preparing an antifogged sheet comprising a propylene resin sheet with an antifogging agent comprising a polyglycerol fatty acid ester or a sucrose fatty acid ester as an effective ingredient.Type: GrantFiled: March 26, 1998Date of Patent: June 26, 2001Assignee: Japan Polychem CorporationInventors: Yoshinobu Nagaoka, Akihiko Egashira, Kazumasa Fujimura, Toshimitsu Hasegawa, Tomokazu Hirose, Hiroshi Kuzui, Toru Tagawa
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Patent number: 6130329Abstract: An anionic surface active agent such as the monoglyceride of succinic acid is incorporated into an aqueous solution of a fatty ester of sucrose to prepare an aqueous solution of a fatty ester of sucrose having a reduced viscosity. A process for reducing the viscosity of an aqueous solution of a fatty ester of sucrose is disclosed, which comprises incorporating an anionic surface active agent in an aqueous solution containing from 8 to 50% by weight of a fatty ester of sucrose having an HLB of from 5 to 20 in an amount of from 1 to 50 parts by weight based on 100 parts by weight of the fatty ester of sucrose. A novel process is also provided, which comprises the use of an aqueous solution of a fatty ester of sucrose having a viscosity thus reduced as an emulsifying agent for dispersing a sparingly water- soluble particulate inorganic compound or cosmetic material therein.Type: GrantFiled: September 30, 1997Date of Patent: October 10, 2000Assignee: Mitsubishi Chemical CorporationInventors: Akihiro Ogawa, Naoya Otomo, Toru Tagawa
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Patent number: 5897906Abstract: The present invention relates to an oil and fat composition for frying comprising: (A) an oil and fat having a solid fat content of 3 to 20% by weight at 20.degree.C., and (B) a polyglycerin fatty acid ester of 0.01 to 5% by weight based on the total weight of (A) and (B), which has not less than 75% of a degree of esterification thereof and has not less than 90% by weight of the constituting fatty acid of the polyglycerin fatty acid ester which satisfy the following definitions (1) to (3): (1) the content of the saturated fatty acid having 8 to 12 carbon atoms being 10 to 55% by weight; (2) the content of the saturated fatty acid having 14 to 22 carbon atoms being 40 to 80% by weight; and (3) the content of the unsaturated fatty acid having 16 to 22 carbon atoms being 5 to 20% by weight.Type: GrantFiled: March 11, 1997Date of Patent: April 27, 1999Assignee: Mitsubishi Chemical CorporationInventors: Nobuyuki Suwa, Tomokazu Hirose, Toru Tagawa
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Patent number: 5820905Abstract: An antifoaming agent which comprises, as the main component, one or more polyglycerol fatty acid esters having a specific degree of polymerization of polyglycerol, specific fatty acid types and a specific saponification value, as well as a canned drink containing the same. The antifoaming agent exhibits an excellent antifoaming effect and solve the problem of blow-off and splash of canned drinks.Type: GrantFiled: January 13, 1997Date of Patent: October 13, 1998Assignee: Mitsubishi Chemical CompanyInventors: Mitsuaki Osaka, Naoya Otomo, Toru Tagawa
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Patent number: 5767058Abstract: A detergent composition comprising a sucrose fatty acid ester and a salt of long-chain carboxylic acid ester of lactic acid having a purity of at least 80 mol %. The detergent composition is highly safe, is weak acidic or neutral so that it has low irritation to the skin, is excellent in detergent properties such as detergency, foaming power and stability in hard water and also in feeling upon use, and is free from undesired color or odor, so that it is suited particularly as food and dish detergents, and skin and hair detergents such as shampoo, body shampoo, face wash and hand soap.Type: GrantFiled: October 25, 1996Date of Patent: June 16, 1998Assignee: Mitsubishi Chemical CorporationInventors: Yuko Watanabe, Riho Honjo, Hiroshi Kuzui, Toru Tagawa
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Patent number: 5733594Abstract: The present invention relates to a fats and oils composition comprising:(A): fats and oils comprising palm oil as a main component,(B): fatty acid polyglycerine ester of 0.05 to 5% by weight based on the weight of the fats and oils composition, which has a degree of esterification of 50% or more, and comprises as a constituent fatty acid, oleic acid and palmitic acid of not less than 80% by weight based on the weight of constituent fatty acid, the molar ratio (%) of the oleic acid to the palmitic acid being 90:10 to 10:90, and(C): of fatty acid salt of 0.02 to 8% by weight based on the weight of the component (B).Type: GrantFiled: December 20, 1996Date of Patent: March 31, 1998Assignee: Mitsubishi Chemical CompanyInventors: Tomokazu Hirose, Nobuyuki Suwa, Toru Tagawa
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Patent number: 5098943Abstract: A water repellent having the following components (A), (B), (C) and (D) emulsified in water:(A) a wax having a melting point of from 40.degree. to 90.degree. C.;(B) a styrene-maleic anydride copolymer;(C) a water-soluble alkaline compound; and(D) a polyvinyl alcohol having a saponification degree of at least 85 mol %.Type: GrantFiled: May 9, 1991Date of Patent: March 24, 1992Assignee: Mitsubishi Kasei CorporationInventors: Toru Tagawa, Takao Tadenuma, Yasoji Ozawa
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Patent number: 5093019Abstract: A liquid separating agent consisting essentially of a copolymer of an .alpha.-olefin having from 6 to 20 carbon atoms and a maleic acid diester with a copolymer composition (molar ratio) such that the maleic acid diester is more than 1.4 mols relative to 1 mol of the .alpha.-olefin, said copolymer having a molecular weight within a range of from 1,000 to 30,000.Type: GrantFiled: December 4, 1989Date of Patent: March 3, 1992Assignee: Mitsubishi Kasei CorporationInventors: Toru Tagawa, Hideki Yamanouchi, Youichirou Tsuji
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Patent number: 4865829Abstract: A method for preparing silica gel particles, which comprises suspending a mixed solution of a silicic acid ester and water in an organic liquid immiscible with the mixed solution, followed by gelation wherein said organic liquid contains an ethyl cellulose having an ethoxy group content of at least 47% by weight and being soluble in the organic liquid.Type: GrantFiled: September 9, 1988Date of Patent: September 12, 1989Assignee: Mitsubishi Kasei Corp.Inventors: Eiji Hattori, Toru Tagawa, Yasuo Oguri
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Patent number: 4775505Abstract: A process for preparing a water repellent calcium silicate shaped product, which comprises dispersing a siliceous source and a calcareous source in water, mixing a water repellent composition thereto, reacting the mixture under heating to obtain an aqueous slurry containing a calcium silicate hydrate, pressfilter-molding the aqueous slurry, followed by drying or drying after steam-curing.Type: GrantFiled: April 9, 1987Date of Patent: October 4, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Katsuhiko Kuroda, Toru Tagawa, Hiroo Katayama
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Patent number: 4748196Abstract: A water repellent composition comprising an emulsion prepared by emulsifying in water (A) a wax having a melting point of from 40.degree. to 90.degree. C. and (B) an olefin-maleic anhydride derivative in the presence of (C) a water-soluble alkaline compound and/or a nonionic emulsifier.Type: GrantFiled: September 18, 1986Date of Patent: May 31, 1988Assignees: Mitsubishi Chemical Industries, Ltd., Yoshino Gpysum Company, Ltd.Inventors: Katsuhiko Kuroda, Toru Tagawa, Kiyoharu Yoshimi, Yasoji Ozawa
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Patent number: 4741773Abstract: A water repellent composition being liquid at room temperature, which comprises a silicone oil and a substantially non-volatile paraffinic oil or low molecular weight resin, wherein the separation index of the paraffinic oil or low molecular weight resin to the silicone oil is at most 0.4.Type: GrantFiled: May 7, 1986Date of Patent: May 3, 1988Assignee: Mitsubishi Chemical Industries LimitedInventors: Katsuhiko Kuroda, Toru Tagawa, Hiroo Katayama
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Patent number: 4660219Abstract: An extension ringing arrangement for a key telephone system wherein a plurality of key telephone sets are connected respectively through associated plurality of channel units to main equipment including a main CPU. The channel units as well as an interface unit, including a sub-CPU interconnected to the main CPU are connected in parallel to the main equipment. The interface unit is of the type used for interconnecting individual line telephone sets to the key telephone system, whereby a ringing of a selected one of the key telephone sets from a calling party is made possible, with a simple arrangement effectively utilizing existing components of the key telephone system.Type: GrantFiled: February 18, 1986Date of Patent: April 21, 1987Assignees: Nitsuko Limited, Nippon Telegraph and Telephone CorporationInventors: Kinzi Tanaka, Toru Tagawa, Yoshiji Tanimoto, Minoru Okumura