Patents by Inventor Yohei Fukuoka
Yohei Fukuoka 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: 6190430Abstract: An efficient method for producing a hydrogen-containing gas for a fuel cell by using a gas produced by reforming reaction of an organic compound is disclosed. The method comprises the following steps: adding an oxygen-containing gas to a hydrogen-containing gas containing carbon monoxide to form a mixed gas, and bringing the mixed gas into contact with a catalyst comprising a ruthenium metal as a main component and having a carbon monoxide adsorption of not less than 1 mmol/g-ruthenium and a carbon monoxide adsorption index of not less than 0.5, to thereby oxidize and remove carbon monoxide.Type: GrantFiled: January 14, 1999Date of Patent: February 20, 2001Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yohei Fukuoka, Keizo Tomokuni, Hitoshi Nakajima
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Patent number: 4678861Abstract: A process for producing a cycloolefin which comprises partially hydrogenating a monocyclic aromatic hydrocarbon in the presence of a ruthenium catalyst composed of a rare earth element compound solid carrier and a ruthenium component supported thereon. The resulting cycloolefin is obtained in high yield and high selectivity and the catalyst can be repeatedly used for a prolonged period of time.Type: GrantFiled: October 23, 1985Date of Patent: July 7, 1987Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Osamu Mitsui, Yohei Fukuoka
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Patent number: 4661639Abstract: A process for producing cyclic olefins by catalytic hydration of cyclic olefins is disclosed, wherein the hydration is conducted in the presence of a crystalline aluminosilicate containing at least one member selected from the group consisting of titanium, zirconium, hafnium, chromium, molybdenum, tungsten, and thorium. The hydration reaction achieves high conversions and selectivities, and the catalytic activity is retained for a long time.Type: GrantFiled: May 28, 1985Date of Patent: April 28, 1987Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Masahiro Tojo, Yohei Fukuoka
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Patent number: 4588846Abstract: A process is provided for producing a cyclic alcohol by catalytic hydration of a cyclic olefin in a liquid phase, which comprises using as a catalyst a zeolite having a population ratio of acid sites on the external surface to total acid sites of 0.07/1 or more, conducting the hydration reaction in a reaction zone in the copresence of an oil phase mainly containing cyclic olefin and an aqueous phase mainly containing water and the catalyst while controlling the cyclic alcohol produced so that the concentration thereof in the oil phase is more than that in the aqueous phase, and separating and recovering the cyclic alcohol produced from the oil phase.Type: GrantFiled: November 9, 1984Date of Patent: May 13, 1986Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Osamu Mitsui, Yohei Fukuoka
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Patent number: 4528409Abstract: The catalytic hydration of a cycle olefin in the co-presence of an aromatic sulfonic acid and a heteropoly acid has been found to be extremely effective for preparing a cyclic alcohol efficiently and in high yield.Type: GrantFiled: July 12, 1983Date of Patent: July 9, 1985Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Osamu Mitsui, Yohei Fukuoka
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Patent number: 4436945Abstract: There is disclosed a method for producing benzene and other useful compounds in high yields and selectivity which comprises hydro-dealkylating alkyl aromatic hydrocarbons in the presence of hydrogen using a catalyst mainly composed of a zeolite 15 to 20 equivalent % of exchangeable cations of which are exchanged with hydrogen ions. The reaction temperature is preferably 500.degree. to 650.degree. C.Type: GrantFiled: March 22, 1982Date of Patent: March 13, 1984Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Masahiko Koya, Yohei Fukuoka
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Patent number: 4329462Abstract: Carboxylic amides can be produced simply and in good yield by reacting primary alcohols with at least one compound selected from ammonia, primary amines, and secondary amines, in the presence of a molecular oxygen-containing gas and a palladium or platinum catalyst under oxidative conditions.Type: GrantFiled: April 3, 1980Date of Patent: May 11, 1982Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Nobuhiro Tamura, Yohei Fukuoka, Joji Nishikido, Setsuo Yamamatsu, Yoshio Suzuki
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Patent number: 4297503Abstract: 2-Chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxybenzamide of the formula, ##STR1## a process for their preparation and a process for preparing metoclopramide of the formula, ##STR2## using the above described 2-chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxybenzamide.Type: GrantFiled: September 26, 1980Date of Patent: October 27, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Joji Nishikido, Nobuhiro Tamura, Yohei Fukuoka, Hiroyuki Yamane
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Patent number: 4279836Abstract: 2-Chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxybenzhydroxami c acid of the formula, ##STR1## or its metal salt, a process for their preparation and a process for preparing metoclopramide of the formula, ##STR2## using the above described 2-chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxybenzhydroxam ic acid or its metal salt.Type: GrantFiled: May 14, 1979Date of Patent: July 21, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Joji Nishikido, Yohei Fukuoka, Nobuhiro Tamura
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Patent number: 4256645Abstract: A process for producing glucono-delta-lactone from glucose by bringing glucose into contact with molecular oxygen in the presence of an organic solvent and a palladium or platinum catalyst. The process optionally includes an acid treatment.Type: GrantFiled: September 14, 1979Date of Patent: March 17, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Joji Nishikido, Nobuhiro Tamura, Yohei Fukuoka
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Patent number: 4250110Abstract: 2-Chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxy-benzamide of the formula, ##STR1## a process for their preparation and a process for preparing metoclopramide of the formula, ##STR2## using the above described 2-chloro-4-N-(.beta.-diethylaminoethyl)aminocarbonyl-5-methoxybenzamide.Type: GrantFiled: July 19, 1979Date of Patent: February 10, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Joji Nishikido, Nobuhiro Tamura, Yohei Fukuoka, Hiroyuki Yamane
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Patent number: 4249019Abstract: A carboxylic ester is produced in one step in a high yield and with a high selectivity by reacting an aldehyde with an alcohol in the presence of oxygen by using a catalyst comprising (I) palladium, (II) at least one compound selected from the group consisting of lead compounds, thallium compounds and mercury compounds and (III) at least one compound selected from the group consisting of alkali metal compounds and alkaline earth metal compounds.Type: GrantFiled: November 13, 1978Date of Patent: February 3, 1981Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Nobuhiro Tamura, Yohei Fukuoka, Setsuo Yamamatsu, Yoshio Suzuki, Ryoichi Mitsui, Tadayuki Ibuki
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Patent number: 4146730Abstract: A method for obtaining glutaric acid, succinic acid, and adipic acid from an acid mixture obtained as a by-product in the industry and comprising glutaric acid, succinic acid and adipic acid, which comprises the steps of: (1) contacting the acid mixture with urea of 1 to 2 moles per mole of the acid mixture, in solution, to deposit a urea-glutaric acid adduct so that the weight ratio of glutaric acid remaining in the solution to succinic acid is 1.2 or less when the adipic acid content is in the range of 0% by weight to 7% by weight and 1.Type: GrantFiled: December 15, 1976Date of Patent: March 27, 1979Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Joji Nishikido, Nobuhiro Tamura, Yohei Fukuoka
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Patent number: 3981906Abstract: Alkyl 4,4'-(ethylenedioxy)bis-benzoates having improved properties such as anti-oxidation and anti-coloration are prepared in high yield and selectivity by, at the first step, reacting an excess alkyl p-hydroxybenzoate with a recycling alkyl p-(2-chloro-ethoxy)benzoate with heating in the presence of an alkali carbonate and an inert organic solvent until almost said alkyl p-(2-chloroethoxy)benzoate is consumed to produce an alkyl 4,4'-(ethylenedioxy)bis-benzoate and at the second step adding ethylene dichloride to the reaction system and continuing the heating to produce an alkyl p-(2-chloroethoxy)benzoate which is recycled, and separating the alkyl 4,4'-(ethylenedioxy)bis-benzoate produced.Type: GrantFiled: May 7, 1975Date of Patent: September 21, 1976Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Yohei Fukuoka, Toshio Kato, Norio Imai, Joji Nishikido, Masato Hamada, Hiroshi Mikami, Hirohumi Iwasaki, Toshihisa Koike