Patents by Inventor Akira Mizuno
Akira Mizuno 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: 5767033Abstract: The novel transition metal compound of the invention is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms;X.sup.1 and X.sup.2 are each a halogen atom; andY is a divalent silicon-containing group selected from the group consisting of dimethylsilylene, diphenylsilylene and methylphenylsilylene. The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.Type: GrantFiled: November 18, 1996Date of Patent: June 16, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki
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Patent number: 5763088Abstract: An olefin resin-based article having good gas barrier properties is disclosed, comprising an .alpha.,.beta.-ethylenically unsaturated carboxylic acid-grafted polyolefin (e.g., maleic anhydride-grafted polypropylene) having formed thereon an inorganic oxide deposite film, wherein the grafted polyolefin has an unsaturated carboxylic acid unit concentration of from 0.01 to 10% by weight, with or without an anchor coat being provided between the grafted polyolefin and the inorganic oxide film. The article suffers from no reduction in gas barrier properties even when heat or stress is applied thereto and is therefore useful as a wrapping or packaging material in the production of pouch-packed foods and IC packages.Type: GrantFiled: January 11, 1996Date of Patent: June 9, 1998Assignee: Mitsubishi Chemical CorporationInventors: Tomomi Nakano, Masayuki Egami, Masafumi Hattori, Akira Mizuno, Junji Mayumi
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Patent number: 5739366Abstract: The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 to 20 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like. The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.Type: GrantFiled: June 7, 1995Date of Patent: April 14, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki
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Patent number: 5705584Abstract: The novel propylene homopolymer and copolymer produced by using a catalyst which is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like.Type: GrantFiled: June 7, 1995Date of Patent: January 6, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki, Masaaki Itoh, Mikio Hashimoto
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Patent number: 5684161Abstract: A simple and industrially viable process for preparing a 1-substituted pyrrole-3-carboxylic acid derivative of formula (I) is provided. The process comprises reacting a compound of formula (II), a compound of formula (III), and an acid anhydride according to the following reaction, ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl, aralkyl, or aryl group.Type: GrantFiled: October 31, 1996Date of Patent: November 4, 1997Assignee: Suntory LimitedInventors: Masahiro Imoto, Akira Mizuno, Makoto Shibata, Tomoe Iwamori
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Patent number: 5677408Abstract: The novel propylene elastomer according to the invention contains (1) units derived from propylene in amounts of 50 to 95% by mol and units derived from 1-butene in amounts of 5 to 50% by mol, and has (2) triad tacticity (mm fraction), determined by the .sup.13 C-NMR spectrum (hexachlorobutadiene solution, based on tetramethylsilane), of not less than 90%, (3) an intrinsic viscosity (in decalin at 135.degree. C.) of 0.1 to 12 dl/g, (4) a molecular weight distribution (Mw/Mn) of not more than 3 and (5) a randomness parameter B value of 1.0 to 1.5, preferably 1.0 to 1.3. In addition, the elastomer desirably has properties that (6) the elastomer has a melting point Tm of 60.degree. to 140.degree. C., and the melting point Tm and a 1-butene constituent unit content M (% by mol) in the elastomer satisfy the relation -2.6M+130.ltoreq.Tm.ltoreq.-2.3M+155, and (7) a crystallinity C of the elastomer measured by X-ray diffractometry and the 1-butene constituent unit content M (% by mol) satisfy the relation C.ltoreq.Type: GrantFiled: June 5, 1995Date of Patent: October 14, 1997Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Takashi Ueda, Akira Mizuno, Masaaki Kawasaki, Daisuke Fukuoka, Yoshihisa Kiso, Tatsuya Tanizaki, Mikio Hashimoto, Masahiro Sugi, Toshiyuki Tsutsui
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Patent number: 5504172Abstract: The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 to 20 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like.The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.Type: GrantFiled: June 7, 1994Date of Patent: April 2, 1996Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Imuta, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki, Mikio Hashimoto
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Patent number: 5416082Abstract: Disclosed herein are pyrroloazepine derivatives having anti-.alpha..sub.1 activity and anti-serotonin activity represented by the following formula (I): ##STR1## wherein R means a hydrogen atom, a linear or branched C.sub.1-6 alkyl group or a C.sub.7-10 aralkyl group, A denotes a linear or branched C.sub.2-10 alkylene, alkenylene or alkynylene group, Z stands for O, NOR.sub.1 or NOCOR.sub.5 in which R.sub.1 and R.sub.5 is a hydrogen atom or an alkyl, aryl or aralkyl group, and Y means a particular piperidinyl or pyrrolidinyl group; and salts thereof. Their preparation processes are also disclosed.Type: GrantFiled: February 14, 1994Date of Patent: May 16, 1995Assignee: Suntory LimitedInventors: Akira Mizuno, Hidetsura Cho, Mikiko Hamaguchi, Toshio Tatsuoka, Takafumi Ishihara
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Patent number: 5399557Abstract: This invention provides a pyrroloazepine compound represented by the following formula (I) or (II): ##STR1## wherein Z.sub.1, Z.sub.2, R, A and Y are defined in the claims. The pyrroloazepine compounds according to the present invention are drugs having excellent anti-serotonin action. Coupled with their high safety, they can therefore be used as novel therapeutics for ischemic heart diseases. In addition, the compounds of the present invention include those having anti-.alpha..sub.1 action. Such compounds are effective as hypotensive drugs. Pyrroloazepine compounds according to the present invention are therefore extremely useful as therapeutics for a wide variety of circulatory diseases.Type: GrantFiled: April 7, 1993Date of Patent: March 21, 1995Assignee: Suntory LimitedInventors: Akira Mizuno, Mikiko Miya, Norio Inomata, Toshio Tatsuoka, Takafumi Ishihara
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Patent number: 5397780Abstract: This invention provides a pyrroloazepine derivative represented by the following formula (I): ##STR1## where the substituents are defined in the specification. The pyrroloazepine derivatives according to the present invention are drugs having excellent anti-.alpha..sub.1 action and anti-serotonin action and feature high safety. They can therefore be used, for example, as novel therapeutics for circulatory diseases.Type: GrantFiled: April 6, 1993Date of Patent: March 14, 1995Assignee: Suntory LimitedInventors: Akira Mizuno, Hidetsura Cho, Mikiko Miya, Toshio Tatsuoka, Takafumi Ishihara
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Patent number: 5391731Abstract: Disclosed herein are pyrroloazepine derivatives, which are useful as therapeutics for circulatory diseases, represented by the following formula (I): ##STR1## wherein R means a hydrogen atom, a linear or branched C.sub.1-6 alkyl group or a C.sub.7-10 aralkyl group, A denotes a linear or branched C.sub.2-10 alkylene, alkenylene or alkynylene group, Z stands for O, NOR.sub.1 or NOCOR.sub.5 in which R.sub.1 and R.sub.5 is a hydrogen atom or an alkyl, aryl or aralkyl group, and Y means a particular piperidinyl or pyrrolidinyl group; and salts thereof. Their preparation processes are also disclosed.Type: GrantFiled: December 9, 1992Date of Patent: February 21, 1995Assignee: Suntory LimitedInventors: Akira Mizuno, Hidetsura Cho, Mikiko Hamaguchi, Toshio Tatsuoka, Takafumi Ishihara
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Patent number: 5310931Abstract: This invention is to provide a novel process for the isomerization of a cycloolefin having an endo form to a cycloolefin having an exo form. The resulting isomer mixture has a novel composition, and a random copolymer produced from the above compositionally novel isomer mixture and ethylene has an excellent heat resistance and mechanical strength.Type: GrantFiled: January 10, 1992Date of Patent: May 10, 1994Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshihiro Sagane, Hideaki Yamaguchi, Shuji Minami, Akira Mizuno, Hiroo Wamura
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Patent number: 5223434Abstract: An apparatus for producing and automatically injecting H.sub.2.sup.15 O, having: a target box adapted to be irradiated with a deuteron beam, a gas supplying device for supplying a hydrogen gas and a nitrogen gas as raw-material gases to the target box a radioactive-isotope conveying pipe connecting the target box and a vacuum pump for maintaining the interior of the target box and the interior of the radioactive-isotope conveying pipe in a vacuum state. In addition, the apparatus has an injection-fluid producing device and an automatic injection device, wherein the target box, the injection-fluid producing device and the automatic injection device are fluidly communicated with one another.Type: GrantFiled: November 12, 1991Date of Patent: June 29, 1993Assignees: Kazuo Uemura, The Japan Steel Works, Ltd.Inventors: Iwao Kanno, Matsutaro Murakami, Yohjiro Toda, Tadasu Sugawara, Masahiko Handa, Akira Mizuno
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Patent number: 5206239Abstract: Disclosed herein are pyrroloazepine derivatives, which are useful as therapeutics for circulatory diseases, represented by the following formula (I): ##STR1## wherein R means a hydrogen atom, a linear or branched C.sub.1-6 alkyl group or a C.sub.7-10 aralkyl group, A denotes a linear or branched C.sub.2-10 alkylene, alkenylene or alkynylene group, Z stands for O, NOR.sub.1 or NOCOR.sub.5 in which R.sub.1 and R.sub.5 is a hydrogen atom or an alkyl, aryl or aralkyl group, and Y means a particular piperidinyl or pyrrolidinyl group; and salts thereof. Their preparation processes are also disclosed.Type: GrantFiled: February 7, 1991Date of Patent: April 27, 1993Assignee: Suntory LimitedInventors: Akira Mizuno, Hidetsura Cho, Mikiko Hamaguchi, Toshio Tatsuoka, Takafumi Ishihara
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Patent number: 5106931Abstract: This invention is to provide a novel process for the isomerization of a cycloolefin having an endo form to a cycloolefin having an exo form. The resulting isomer mixture has a novel composition, and a random copolymer produced from the above compositionally novel isomer mixture and ethylene has an excellent heat resistance and mechanical strength.Type: GrantFiled: August 10, 1990Date of Patent: April 21, 1992Assignee: Mitsui Petrochemical Industries Ltd.Inventors: Toshihiro Sagane, Hideaki Yamaguchi, Shuji Minami, Akira Mizuno, Hiroo Wamura
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Patent number: 5044353Abstract: A liquid fuel combustion type infrared ray irradiating apparatus includes a base having a generally rectangular-shaped framework, each corner of which is provided with a wheel, a fuel tank fixed to the base, and a pump disposed on the base and adapted to pump fuel from the fuel tank. A combustion chamber is connected to a burner which receives fuel from the pump for combustion. An irradiation pipe is connected to the combustion chamber for guiding combustion gas from the combustion chamber into an upper chimney, receiving heat from the combustion gas, and irradiating infrared rays. Reflecting plates are disposed to forwardly reflect rearwardly directed radiant heat which has been radiated from the irradiation pipe.Type: GrantFiled: June 25, 1990Date of Patent: September 3, 1991Assignee: Shizuoka Seiki Co., Ltd.Inventors: Akira Mizuno, Hiroshi Komai, Toshio Ina, Tadao Suzuki
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Patent number: 4931526Abstract: An .alpha.-olefinic random copolymer containing an .alpha.-olefin component having 5 to 10 carbon atoms and an .alpha.,.omega.-nonconjugated diene component having 6 to 20 carbon atoms, and optionally, a straight .alpha.-olefin component having 2 to 20 carbon atoms, wherein the copolymer comprises:(i) 70 to 99.9% by weight of a recurring unit (a) derived from the .alpha.-olefin, 0.1 to 30% by weight of a recurring unit (b) derived from the .alpha.,.omega.-nonconjugated diene and 0 to 20% by weight of a recurring unit (c) derived from the straight .alpha.-olefin component;(ii) an inherent viscosity [.eta.] measured in decalin at 135.degree. C. of from 0.5 to 10 dl/g;(iii) a crystallinity [Xc] measured by the X-ray diffraction method of from 0 to 50%;(iv) a glass transition temperature [Tg] of from 30.degree. to 60.degree. C.; and(v) an iodine value of from 0 to 10.Type: GrantFiled: November 10, 1988Date of Patent: June 5, 1990Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Yoshitake, Hiroaki Kitani, Takeshi Muranaka, Akira Mizuno, Norio Kashiwa
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Patent number: 4772602Abstract: A N-substituted 3,4-dihydropyrimidine derivative of the formula (1): ##STR1## Wherein R.sup.1 is --(CH.sub.2).sub.n --X; X is substituted aminoethyl, substituted sulfideethyl, substituted or nonsubstituted heterocyclo-ethyl wherein the ethylene group is directly bonded to a hetero atom in the heterocyclic ring, or substituted or nonsubstituted heterocyclo-methyl wherein the methylene group is directly bonded to a carbon atom in the heterocyclic ring; n is an integer from 0 to 8; R.sup.2 is straight, branched cyclic or cyclo-straight alkyl having from one to thirteen carbon atoms, or aralkyl having from seven to thirteen carbon atoms and pharmacologically acceptable acid additional salts thereof have substantially strong and long lasting effects. Therefore the compounds are useful as agents for treating disorders of the cardiovascular system, and are useful, for example, as antihypertensive agents, circulation improvers and antianginal agents.Type: GrantFiled: March 14, 1986Date of Patent: September 20, 1988Assignee: Suntory LimitedInventors: Hidetsura Cho, Akira Mizuno, Keiyu Shima
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Patent number: 4695358Abstract: A method for converting sulfur dioxide and/or nitrogen oxide gases to acid mist and or particle aerosols is disclosed in which the gases are passed through a streamer corona discharge zone having electrodes of a wire-cylinder or wire-plate geometry.Type: GrantFiled: November 8, 1985Date of Patent: September 22, 1987Assignee: Florida State UniversityInventors: Akira Mizuno, Judson S. Clements
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Patent number: 4388047Abstract: A solenoid-operated pump for discharging fluid from a tank through a fluid discharge passage in a pump body has a directional control valve disposed in the fluid discharge passage. The directional control valve is normally urged to direct fluid flow through a fluid drainage passage branched from the fluid discharge passage and adapted for connection to the tank. The fluid drainage passage includes a restrictor which produces a fluid-pressure build-up in response to a change in viscosity of the fluid flowing therethrough, that is, when air is no longer contained in the fluid. The directional control valve is responsive to such pressure build-up to direct the fluid to flow through the fluid discharge passage.Type: GrantFiled: December 19, 1980Date of Patent: June 14, 1983Assignee: Shizuoka Seiki Co., Ltd.Inventors: Akira Mizuno, Shigeo Suzuki