Patents by Inventor Arata Yasuda
Arata Yasuda 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: 10981857Abstract: The present invention provides a production method of ?-fluoroacrylate ester, a composition containing a highly-pure fluorocyclopropane derivative and a composition containing highly-pure ?-fluoroacrylate ester.Type: GrantFiled: February 24, 2017Date of Patent: April 20, 2021Assignee: AGC INC.Inventors: Takashi Akiya, Mitsugu Kasagawa, Naoki Ichinokawa, Yu Onozaki, Satoshi Kawaguchi, Yusuke Tomiyori, Arata Yasuda
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Patent number: 10494338Abstract: The present invention relates to a novel prostaglandin derivative having an alkynyl group on ?-chain, particularly, a novel prostaglandin derivative having a double bond at the 2-position and an alkynyl group on the ?-chain and a medicament containing the compound as an active ingredient. According to the present invention, a compound represented by the formula (1) or a pharmaceutically acceptable salt thereof; wherein each symbol is as defined in the present specification, or a cyclodextrin clathrate compound thereof, and a medicament containing the compound as an active ingredient, particularly, a medicament for the prophylaxis or treatment of a blood flow disorder associated with spinal canal stenosis or chronic arterial occlusion, can be provided.Type: GrantFiled: May 9, 2017Date of Patent: December 3, 2019Assignees: AGC INC., NIPPON ZOKI PHARMACEUTICAL CO., LTD.Inventors: Arata Yasuda, Yasushi Matsumura, Kazuyoshi Sawada, Hiroyoshi Nanba, Kazuki Taguchi
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Publication number: 20190263746Abstract: The present invention provides a production method of ?-fluoroacrylate ester, a composition containing a highly-pure fluorocyclopropane derivative and a composition containing highly-pure ?-fluoroacrylate ester.Type: ApplicationFiled: February 24, 2017Publication date: August 29, 2019Applicant: AGC INC.Inventors: Takashi AKIYA, Mitsugu KASAGAWA, Naoki ICHINOKAWA, Yu ONOZAKI, Satoshi KAWAGUCHI, Yusuke TOMIYORI, Arata YASUDA
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Publication number: 20190135743Abstract: The present invention relates to a novel prostaglandin derivative having an alkynyl group on ?-chain, particularly, a novel prostaglandin derivative having a double bond at the 2-position and an alkynyl group on the ?-chain and a medicament containing the compound as an active ingredient. According to the present invention, a compound represented by the formula (1) or a pharmaceutically acceptable salt thereof; wherein each symbol is as defined in the present specification, or a cyclodextrin clathrate compound thereof, and a medicament containing the compound as an active ingredient, particularly, a medicament for the prophylaxis or treatment of a blood flow disorder associated with spinal canal stenosis or chronic arterial occlusion, can be provided.Type: ApplicationFiled: May 9, 2017Publication date: May 9, 2019Applicants: AGC INC., NIPPON ZOKI PHARMACEUTICAL CO., LTD.Inventors: Arata YASUDA, Yasushi MATSUMURA, Kazuyoshi SAWADA, Hiroyoshi NANBA, Kazuki TAGUCHI
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Patent number: 10252971Abstract: To provide a novel method for producing a halogenated acrylic acid derivative. A compound represented by the formula (1): (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or R1 and R2 together form a ring, R3 is a monovalent group capable of being desorbed by R3OH removal reaction, and each of R4 and R5 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom) and having a boiling point of at most 500° C.Type: GrantFiled: February 29, 2016Date of Patent: April 9, 2019Assignee: AGC Inc.Inventors: Arata Yasuda, Mitsugu Kasagawa
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Publication number: 20170057902Abstract: To provide a novel method for producing a halogenated acrylic acid derivative. A compound represented by the formula (1): (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or R1 and R2 together form a ring, R3 is a monovalent group capable of being desorbed by R3OH removal reaction, and each of R4 and R5 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom) and having a boiling point of at most 500° C.Type: ApplicationFiled: February 29, 2016Publication date: March 2, 2017Applicant: Asahi Glass Company, LimitedInventors: Arata YASUDA, Mitsugu KASAGAWA
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Publication number: 20150073005Abstract: To provide a composition for hair growth (hair growth agent) which has high hair growing effects and can be used for prevention or treatment of alopecia. The composition for hair growth comprises as an active ingredient at least one member selected from the group consisting of a compound represented by the formula (1) and a salt thereof. In the formula, R is a carboxy group or an alkoxycarbonyl group.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Applicants: ASAHI GLASS COMPANY, LIMITED, SANTEN PHARMACEUTICAL, CO., LTD.Inventors: Atsushi Shimazaki, Arata Yasuda, Yasushi Matsumura
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Patent number: 5780634Abstract: Quinolin-2-yl benzoic acid compounds which are useful as intermediates of quinoline compounds having angiotensin II antagonist activity prepared by decarboxylating 2-(carboxyphenyl)-4-quinolinecarboxylic acid compounds in which a carboxyl group bonded to a phenyl group may be esterified, while a carboxyl group bonded to a quinoline ring is not esterified, and both rings may have one or more substituents inert to the decarboxylation reaction.Type: GrantFiled: October 27, 1995Date of Patent: July 14, 1998Assignees: The Green Cross Corporation, Asahi Glass Co., Ltd.Inventors: Yoshihisa Inoue, Hajime Ebisu, Naomichi Ishida, Norifumi Nakamura, Jun Sasaki, Takashi Okazoe, Yoshitomi Morizawa, Arata Yasuda, Shuzhong Wang, Tomoko Ito
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Patent number: 5665881Abstract: A quinoline compound represented by the formula (1) or a salt thereof: ##STR1## wherein the definition of each substituents are described in the specification, which have angiotensin II antagonism and hypotensive action and are useful as an agent for the prevention and treatment of cardiovascular system diseases such as hypertension, heart failure and the like.Type: GrantFiled: October 10, 1995Date of Patent: September 9, 1997Assignees: The Green Cross Corporation, Asahi Glass Co., Ltd.Inventors: Yoshihisa Inoue, Hajime Ebisu, Naomichi Ishida, Norifumi Nakamura, Jun Sasaki, Takashi Okazoe, Yoshitomi Morizawa, Arata Yasuda
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Patent number: 5478832Abstract: A quinoline compound represented by the formula (1) or a salt thereof: ##STR1## wherein the definition of each substituents are described in the specification, which have angiotensin II antagonism and hypotensive action and are useful as an agent for the prevention and treatment of cardiovascular system diseases such as hypertension, heart failure and the like.Type: GrantFiled: May 4, 1993Date of Patent: December 26, 1995Assignees: The Green Cross Corporation, Asahi Glass Co., Ltd.Inventors: Yoshihisa Inoue, Hajime Ebisu, Naomichi Ishida, Norifumi Nakamura, Jun Sasaki, Takashi Okazoe, Yoshitomi Morizawa, Arata Yasuda
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Patent number: 5416231Abstract: A novel prostaglandin I.sub.2 derivative selected from a prostaglandin I.sub.2 having a halogen atom on the carbon atom corresponding to the 7-position of natural prostaglandin I.sub.2 and having a cycloalkylene group in the .alpha.-chain, and its esters and salts.Type: GrantFiled: April 9, 1993Date of Patent: May 16, 1995Assignee: Asahi Glass Company, Ltd.Inventors: Tomoyuki Asai, Yoshitomo Morizawa, Arata Yasuda, Taku Yamamoto, Buichi Fujitani, Kanoo Hosoki
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Patent number: 5387684Abstract: An isoindazole compound of the formula (1) or a salt thereof; a method for the production thereof; and pharmaceutical use of the compound and a salt thereof, particularly as an angiotensin II antagonist and as an agent for the prophylaxis and treatment of circulatory diseases (particularly hypertension and heart failure); ##STR1## wherein Q is a heterocyclic derivative of the formula (2) or (3) ##STR2## wherein other symbols of the above formulas are as defined in the Specification. The compound and its salt show superior angiotensin II antagonism and are low toxic. Accordingly, they are useful as angiotensin II antagonists for the treatment or prophylaxis of angiotensin II-mediated diseases such as circulatory diseases of hypertension (e.g. essential hypertension, renal hypertension) and heart failure.Type: GrantFiled: January 24, 1994Date of Patent: February 7, 1995Assignees: The Green Cross Corporation, Asahi Glass Co., Ltd.Inventors: Yoshihisa Inoue, Hajime Ebisu, Norifumi Nakamura, Yoshitomi Morizawa, Takashi Okazoe, Arata Yasuda
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Patent number: 5194670Abstract: An emulsion of lipid containing a prostaglandin analogue of the formula (1): ##STR1## wherein R.sup.1 is an alkanoyl group, R.sup.2 is a hydrogen atom or an alkyl group, each of R.sup.3 and R.sup.4 is a hydrogen atom or a protective group for an alcohol, R.sup.5 is an alkyl group which may have a substitutent, and is a single bond or a double bond.Type: GrantFiled: March 24, 1992Date of Patent: March 16, 1993Assignees: Yutaka Mizushima, Asahi Glass Company Ltd., Seikagaku CorporationInventors: Yutaka Mizushima, Toshihide Inomata, Arata Yasuda
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Patent number: 5120870Abstract: An emulsion of lipid containing a prostaglandin analogue of the formula (1): ##STR1## wherein R.sup.1 is an alkanoyl group, R.sup.2 is a hydrogen atom or an alkyl group, each of R.sup.3 and R.sup.4 is a hydrogen atom or a protective group for an alcohol, R.sup.5 is an alkyl group which may have a substituent, and is a single bond or a double bond.Type: GrantFiled: October 12, 1990Date of Patent: June 9, 1992Assignees: Yutaka Mizushima, Asahi Glass Company Ltd., Seikagaku Kogyo Co., Ltd.Inventors: Yutaka Mizushima, Toshihide Inomata, Arata Yasuda
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Patent number: 4906663Abstract: A 6-fluoroprostaglandin having the formula: ##STR1## wherein A is a carbonyl group or a hydroxymethylene group, R.sup.1 is a substituted or unsubstituted C.sub.1 -C.sub.10 alkyl group or a substituted or unsubstituted 5- or 6-membered cycloalkyl group, R.sup.2 is a hydrogen atom or a C.sub.1 -C.sub.10 alkyl group, each of R.sup.3 and R.sup.4 which may be the same or different is a hydrogen atom or a protecting group, R.sup.5 is a hydrogen atom or a hydroxyl group, and is a single bond or a double bond, and its salt when R.sup.2 is a hydrogen atom.Type: GrantFiled: October 14, 1988Date of Patent: March 6, 1990Assignees: Asahi Glass Company, Ltd., Dainippon Pharmaceutical Company, Ltd.Inventors: Naonobu Hatano, Buichi Fujitani, Toshiaki Kadokawa, Yasushi Matsumura, Tomoyuki Asai, Arata Yasuda, Keiichi Uchida