Patents Assigned to Taki Chemical Co., Ltd.
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Patent number: 10640390Abstract: An alumina powder containing a hydroxycarboxylic acid and an alkaline component contains amorphous alumina, pseudoboehmite, or boehmite, and satisfies all of (1) to (4). (1) A colloidal dispersion A with 2.5% by mass of Al2O3 consisting of the alumina powder and distilled water is free from precipitate, and has a light transmittance of at least 80% measured at a wavelength of 500 nm and an optical path length of 10 mm. (2) A colloidal dispersion B with 15% by mass of Al2O3 consisting of the alumina powder and distilled water is free from precipitate. (3) The dispersions A and B have a pH in a range of 5 to 8. (4) A colloidal dispersion C with 2.5% by mass of Al2O3 consisting of the alumina powder and methanol is free from precipitate, and has a light transmittance of at least 80% measured under the above condition.Type: GrantFiled: December 6, 2017Date of Patent: May 5, 2020Assignee: TAKI CHEMICAL CO., LTD.Inventors: Taketoshi Kuroda, Taku Tsuneishi, Masaki Terao
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Patent number: 8207085Abstract: A photocatalytic coating composition comprising photocatalytic titanium oxide, silver, copper and a quaternary ammonium hydroxide. The photocatalytic coating composition may include a photocatalytic titanium oxide sol dispersed in a binder. Furthermore, a photocatalytic member includes a substrate having a surface coated with the photocatalytic coating composition. The photocatalyst coating composition can contain highly antibacterial silver by skillfully utilizing copper and a quaternary ammonium hydroxide, and accordingly can show an antibacterial effect not only in a dark place simply due to silver, but also a higher antibacterial effect in a conventional application of employing ultraviolet sterilization by concomitantly using the photocatalyst titanium oxide sol according to the present invention and an ultraviolet sterilizer.Type: GrantFiled: December 20, 2010Date of Patent: June 26, 2012Assignees: Taki Chemical Co., Ltd., Toto Ltd.Inventors: Taketoshi Kuroda, Hiroyuki Izutsu, Isamu Yamaguchi, Yoshiyuki Nakanishi
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Patent number: 8025725Abstract: According to the present invention, there is provided a temperature-sensitive aluminum phosphate solution, characterized in that, composition of the aluminum phosphate is within such ranges that 3Al2O3/P2O5 (molar ratio) is from 1.2 to 1.5, M2O/P2O5 (molar ratio) (M is an alkali metal) is from 0.02 to 0.15 and concentration of Al2O3 is from 2 to 8% by mass and the sensing temperature is within a temperature range of from 20 to 100° C. The solution is particularly useful as an antioxidant for carbon materials.Type: GrantFiled: December 11, 2007Date of Patent: September 27, 2011Assignee: Taki Chemical Co., Ltd.Inventors: Shohei Matsuda, Hiroaki Hani, Koji Yamada, Hiroyuki Moriya, Shinichiro Orai
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Publication number: 20110092359Abstract: A photocatalytic coating composition comprising photocatalytic titanium oxide, silver, copper and a quaternary ammonium hydroxide. The photocatalytic coating composition may include a photocatalytic titanium oxide sol dispersed in a binder. Furthermore, a photocatalytic member includes a substrate having a surface coated with the photocatalytic coating composition. The photocatalyst coating composition can contain highly antibacterial silver by skillfully utilizing copper and a quaternary ammonium hydroxide, and accordingly can show an antibacterial effect not only in a dark place simply due to silver, but also a higher antibacterial effect in a conventional application of employing ultraviolet sterilization by concomitantly using the photocatalyst titanium oxide sol according to the present invention and an ultraviolet sterilizer.Type: ApplicationFiled: December 20, 2010Publication date: April 21, 2011Applicants: TAKI CHEMICAL CO., LTD., TOTO LTD.Inventors: Taketoshi KURODA, Hiroyuki IZUTSU, Isamu YAMAGUCHI, Yoshiyuki NAKANISHI
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Patent number: 7879757Abstract: A photocatalytic titanium oxide sol presents antibacterial properties in a dark place, and, in particular, relates to a photocatalytic titanium oxide sol which is stable and causes no discoloration by light even though containing silver, and relates to a coating composition and a member using the same. The photocatalytic titanium oxide sol includes silver, copper and a quaternary ammonium hydroxide, may be dispersed in a binder, and may be coated on the surface of a substrate.Type: GrantFiled: September 27, 2007Date of Patent: February 1, 2011Assignees: Taki Chemical Co., Ltd., Toto Ltd.Inventors: Taketoshi Kuroda, Hiroyuki Izutsu, Isamu Yamaguchi, Yoshiyuki Nakanishi
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Patent number: 7834079Abstract: Disclose is a water soluble anionic polymer dispersion containing a radical copolymer created in water salt which includes anionic monomer, non-ionic monomer, ionic dispersant and radical polymerization initiator, and anionic surfactant or non-ionic surfactant. Also disclosed is a water soluble anionic polymer dispersion is characterized by containment of radical copolymer created in salt water which includes anionic monomer, non-ionic monomer, ionic dispersant, and radical polymerization initiator, and anionic surfactant, and non-ionic surfactant. Manufacturing methods for the water soluble anionic polymer dispersions are further disclosed herein.Type: GrantFiled: December 14, 2006Date of Patent: November 16, 2010Assignees: Green Technology, Inc., Taki Chemical Co., Ltd.Inventors: Sung Wook Han, Seung Chul Lee
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Publication number: 20090208638Abstract: According to the present invention, there is provided a temperature-sensitive aluminum phosphate solution, characterized in that, composition of the aluminum phosphate is within such ranges that 3Al2O3/P2O5 (molar ratio) is from 1.2 to 1.5, M2O/P2O5 (molar ratio) (M is an alkali metal) is from 0.02 to 0.15 and concentration of Al2O3 is from 2 to 8% by mass and the sensing temperature is within a temperature range of from 20 to 100° C. The solution is particularly useful as an antioxidant for carbon materials.Type: ApplicationFiled: December 11, 2007Publication date: August 20, 2009Applicant: TAKI CHEMICAL CO., LTD.Inventors: Shohei Matsuda, Hiroaki Hani, Koji Yamada, Hiroyuki Moriya, Shinichiro Orai
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Patent number: 6875461Abstract: In a method for coating a calcium phosphate compound on a biotissue substrate or, particularly, in case the biotissue substrate is biotissue, there is provided a method for coating of biotissue substrate where the method causes no damage thereto, is very mild even to biotissues which are other than the biotissue to be coated and is able to form a uniform coat. A method for coating a calcium phosphate compound on a biotissue substrate by an alternate soaking method which is characterized in that, as the soaking solutions, there are used a solution containing a water-soluble calcium salt and borate and/or L-histidine and a phosphate solution.Type: GrantFiled: June 17, 2002Date of Patent: April 5, 2005Assignees: Taki Chemical Co., Ltd., National Institute for Materials ScienceInventors: Junzo Tanaka, Hironobu Fukuzaki, Yoichi Oka, Isamu Yamaguchi
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Publication number: 20050053671Abstract: The alternate soaking apparatus for treatment of tissue materials has a plurality of chemical liquid containers, a treatment container for soaking and treating a tissue material, a plurality of liquid feed tubes for providing fluid communication between the corresponding chemical liquid containers and the treatment container to introduce the respective chemical liquids into the treatment container, a liquid discharge tube for discharging the chemical liquids in the treatment container, and control means for controllably opening and closing the liquid feed tubes and the liquid discharge tube to allow the plurality of chemical liquids to be contained in the treatment container individually and alternately.Type: ApplicationFiled: August 27, 2004Publication date: March 10, 2005Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TAMACHI INDUSTRIES CO., LTD., TAKI CHEMICAL CO., LTD., ESCOM CO., LTD.Inventors: Junzo Tanaka, Masataka Sakane, Hironobu Fukuzaki, Yoshikane Yokoyama, Kunihiro Ota, Masanori Kikuchi, Toshiyuki Ikoma, Isamu Yamaguchi
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Patent number: 6441073Abstract: The followings are disclosed herein: a biomaterial comprising calcium phosphate and a copolymer of lactic acid, glycolic acid and &egr;-caprolactone; a biomaterial for the induction of osteoanagenesis, characterized in that a periosteum is attached to the biomaterial comprising calcium phosphate and a copolymer of lactic acid, glycolic acid and &egr;-caprolactone; and a biomaterial for the prevention of adhesion comprising calcium phosphate and a copolymer of lactic acid, glycolic acid and &egr;-caprolactone where the molar ratio of lactic acid, glycolic acid and &egr;-caprolactone is within a range of 5-90:3-75:5-40.Type: GrantFiled: April 17, 2001Date of Patent: August 27, 2002Assignees: Taki Chemical Co., Ltd., National Institute for Material Science PresidentInventors: Junzo Tanaka, Masanori Kikuchi, Kimihiro Miyamoto, Shuji Suwa, Shunji Ichikawa, Etsuro Yokoyama, Soichi Shono, Takao Okada, Yukari Imamura, Kazuo Takakuda, Yoshihisa Koyama, Shigeo Tanaka, Noriaki Shirahama, Takatoshi Itoh
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Patent number: 6375919Abstract: A method for the manufacture of a ferric sulfate solution is provided, characterized in that, iron ore containing 30% by weight or more FeOOH as a trivalent iron (Fe3+) is calcined at 200-600° C., and then dissolved in sulfuric acid. A water treatment agent consisting of a basic ferric sulfate solution manufactured by the above mentioned manufacturing method is used as a coagulating agent for water treatment.Type: GrantFiled: June 20, 2000Date of Patent: April 23, 2002Assignee: Taki Chemical Co., Ltd.Inventors: Toshihiko Kakio, Tatsuo Tsukamoto
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Patent number: 6235828Abstract: A method for producing a highly concentrated aqueous acrylic amide-based polymer dispersion which is inexpensive, good in fluidity and easy to handle is provided. The method comprises polymerizing a water-soluble monomer composition containing an acrylic amide monomer in an aqueous solution of an inorganic salt in the presence of a homopolymer of vinylpyrrolidone and/or a copolymer of vinylpyrrolidone and other monomer(s).Type: GrantFiled: August 31, 1999Date of Patent: May 22, 2001Assignees: Sumitomo Seika Chemicals Co., Ltd., Taki Chemical Co., Ltd.Inventors: Masato Fujikake, Shigeki Hamamoto, Nobutaka Fujimoto, Kimihiko Kondo, Morio Nakamura, Takao Okada
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Patent number: 5935571Abstract: Herein provided is a plug mixture for raising seedlings, which contains endosymbiotic Pseudomonads mutualistically colonizing in endorhizosphere, Pseudomnonas fluoresceFPT-9601 and Pseudomonas sp. FPH-9601. Using the plug mixture, soil-borne diseases of crop plants and flowering plants can be prevented, and the producibility of such plants can be increased. The plug mixture contains said two Pseudomonads in an amount of not smaller than 10.sup.5 CFU/g each, and may contain 1-?3-(4-hydroxyphenyl)propanoyl!-2-piperidone in an amount of not smaller than 10 ppm. The two strains are separately added to different plug mixtures, which are then blended to give the intended plug mixture for raising seedlings. To this is optionally added 1-?3-(4-hydroxyphenyl)propanoyl!-2-piperidone. The plug mixture is effective for preventing soil-borne diseases, such as bacterial wilt, fusarium wilt and late blight, of various crop plants.Type: GrantFiled: March 6, 1997Date of Patent: August 10, 1999Assignees: Taki Chemical Co., Ltd., Masataka AinoInventors: Masataka Aino, Yoshio Maekawa, Taizo Akiyama, Yukihiko Yoshimi
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Patent number: 5919448Abstract: Disclosed herein is plant growth regulator comprising an isolated Pseudomonas fluorescens FPT-9601 strain or an isolated Pseudomonas sp. FPH-9601 strain which are endosymbiotic pseudomonads.Type: GrantFiled: February 23, 1998Date of Patent: July 6, 1999Assignee: Taki Chemical Co., Ltd.Inventors: Yoshio Maekawa, Yukihiko Yoshimi, Taizoh Akiyama
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Patent number: 5376304Abstract: As an ultraviolet absorbent material, ceric oxide sol which can be widely used in many fields using various solvent materials is obtained.An anionic aqueous sol is obtained by adding phosphoric acid and/or phosphate to cationic ceric oxide sol. It is a sol that can be applied to an emulsion paint. By further adding a cationic surface active agent to this sol, an organo-ceric oxide sol that can be applied to various organic solvents is formed.This sol may widely be used in utilities using various organic solvent materials, such as paint materials.Type: GrantFiled: March 13, 1992Date of Patent: December 27, 1994Assignee: Taki Chemical Co., Ltd.Inventors: Shin Yamamoto, Yoichi Oka, Hiroshi Nishikura
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Patent number: 4948413Abstract: A mixture of 2-piperidone and an N-acyllactam compound for use as a soil amending agent which is provided in a molar ratio of 2-piperidone to N-acyllactam compound in the range from 0.1:1 to 10:1 is effective in the promotion of plant growth.Type: GrantFiled: May 16, 1988Date of Patent: August 14, 1990Assignee: Taki Chemical Co., Ltd.Inventors: Yoshio Maekawa, Osamu Yagyu, Hironori Mizuno, Minoru Okumura, Shigeru Isoda, Kaoru Yagi
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Patent number: 4908373Abstract: The present invention relates to 1-[2-(4-hydroxybenzoyl)ethanoyl]-2-piperidone which is a novel compound of N-acyl lactam compounds and exhibit excellent effects in promoting fermentation in alcohol fermentation.This novel compound can be prepared by converting 2-(4-benzyloxybenzoyl)acetic acid into the acid chloride, then coupling the acid chloride with 2-piperidone or an alkylate of 2-piperidone and then subjecting to debenzylation.Type: GrantFiled: December 27, 1988Date of Patent: March 13, 1990Assignee: Taki Chemical Co., Ltd.Inventors: Minoru Okumura, Yoshio Maekawa, Hironori Mizuno, Osamu Yagiyu
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Patent number: 4775412Abstract: An aqueous sol of a crystalline tin oxide solid solution containing antimony and having a particle size not larger than 300.ANG. is prepared by adding an alkali metal bicarbonate or ammonium bicarbonate to an acidic aqueous solution containing a compound of tin and a compound of antimony to form a gel; purifying the gel; adding aqueous ammonia to the purified gel to form a slurry; and heating the slurry until a sol is formed.Type: GrantFiled: March 9, 1987Date of Patent: October 4, 1988Assignee: Taki Chemical Co., Ltd.Inventors: Hiroshi Nishikura, Shin Yamamoto, Yukio Terao
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Patent number: 4756903Abstract: Silica base material for dentifrice having excellent transparency, prolonged stability and desired abrasiveness, has a specific surface area of 270-500 m.sup.2 /g as measured by BET method and 5-60 m.sup.2 /g by CTAB method, gives virtually amorphous X-ray diffraction pattern after firing at 1100.degree. C., and has a refractive index of 1.455-1.470. This base material can be prepared by reacting an alkali metal silicate solution with hydrochloric acid or sulfuric acid in the presence of an electrolyte, controlling the ratio of the rate of addition of chloride ion or sulfate ion to be at least 3:2 between the acidification stage in which the pH at the completion of the reaction is brought to 3.5 or less, and the silica crystallization stage in which the pH of the reaction system if brought to 10.0, and carrying out the acidification stage within 30 minutes.Type: GrantFiled: February 19, 1987Date of Patent: July 12, 1988Assignee: Taki Chemical Co., Ltd.Inventors: Shinpo Shozo, Fushino Tetsuo, Hachijo Akihiro, Ohtsu Shozo
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Patent number: 4738838Abstract: Silica base material for dentifrice having excellent transparency, prolonged stability, and desired abrasiveness; has a specific surface area of 270-500 m.sup.2 /g as measured by BET method and 5-60 m.sup.2 /g by CTAB method, gives virtually amorphous X-ray diffraction pattern after firing at 1100.degree. C., and has a refractive index of 1.455-1.470. This base material can be prepared by reacting an alkali metal silicate solution with hydrochloric acid or sulfuric acid in the presence of an electrolyte, controlling the ratio of the rate of addition of chloride ion or sulfate ion to be at least 3:2 between the acidification stage in which the pH at the completion of the reaction is brought to 3.5 or less, and the silica crystallization stage in which the pH of the reaction system if brought to 10.0, and carrying out the acidification stage within 30 minutes.Type: GrantFiled: September 11, 1986Date of Patent: April 19, 1988Assignee: Taki Chemical Co., Ltd.Inventors: Shozo Shinpo, Tetsuo Fushino, Akihiro Hachijo, Shozo Ohtsu