Patents by Inventor Masatoshi Chihiro
Masatoshi Chihiro 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: 8450352Abstract: Thiazole compounds for inhibiting the activity of phosphodiesterase 4, the production of tumor necrosis factor alpha, and the production of interleukin 4. The compounds of the invention are represented by general formula (1): wherein A is any one of the following groups (i)-(iii): (i) —CH(OH)—B— wherein B is a C1-6 alkylene group; (ii) —COCH(COOR3)-Bb- wherein R3 is a C1-6 alkyl group and Bb is a C1-6 alkylene group; and (iii) -Bc- wherein Bc is a C2-6 alkylene group, and include optical isomers and salts of the compounds.Type: GrantFiled: December 15, 2009Date of Patent: May 28, 2013Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Isao Takemura, Kenji Watanabe, Kunio Oshima, Nobuaki Ito, Junpei Haruta, Hidetaka Hiyama, Masatoshi Chihiro, Hideki Kawasome, Yoko Sakamoto, Hironobu Ishiyama, Takumi Sumida, Kazuhiko Fujita, Hideki Kitagaki
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Patent number: 8354439Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.Type: GrantFiled: December 12, 2006Date of Patent: January 15, 2013Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
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Publication number: 20100094002Abstract: Thiazole compounds for inhibiting the activity of phosphodiesterase 4, the production of tumor necrosis factor alpha, and the production of interleukin 4. The compounds of the invention are represented by general formula (1): wherein A is any one of the following groups (i)-(iii): (i) —CH(OH)-B- wherein B is a C1-6 alkylene group; (ii) —COCH(COOR3)-Bb- wherein R3 is a C1-6 alkyl group and Bb is a C1-6 alkylene group; and (iii) -Bc- wherein Bc is a C2-6 alkylene group, and include optical isomers and salts of the compounds.Type: ApplicationFiled: December 15, 2009Publication date: April 15, 2010Inventors: Isao Takemura, Kenji Watanabe, Kunio Oshima, Nobuaki Ito, Junpei Haruta, Hidetaka Hiyama, Masatoshi Chihiro, Hideki Kawasome, Yoko Sakamoto, Hironobu Ishiyama, Takumi Sumida, Kazuhiko Fujita, Hideki Kitagaki
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Patent number: 7655680Abstract: Thiazole compounds for inhibiting the activity of phosphodiesterase 4, the production of tumor necrosis factor alpha, and the production of interleukin 4. The compounds of the invention are represented by general formula (1): wherein A is any one of the following groups (i) and (ii): (i) —CO—B— wherein B is a C1-6 alkylene group and (ii) —CO—Ba— wherein Ba is a C2-6 alkenylene group, and include optical isomers and salts of the compounds.Type: GrantFiled: May 16, 2005Date of Patent: February 2, 2010Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Isao Takemura, Kenji Watanabe, Kunio Oshima, Nobuaki Ito, Junpei Haruta, Hidetaka Hiyama, Masatoshi Chihiro, Hideki Kawasome, Yoko Sakamoto, Hironobu Ishiyama, Takumi Sumida, Kazuhiko Fujita, Hideki Kitagaki
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Publication number: 20080039511Abstract: An object of the present invention is to provide a novel thiazole compound with specific inhibitory activity against phosphodiesterase 4.Type: ApplicationFiled: May 16, 2005Publication date: February 14, 2008Applicant: OTSUKA PHARMACEUTICAL CO., LTD.Inventors: Isao Takemura, Kenji Watanabe, Kunio Oshima, Nobuaki Ito, Junpei Haruta, Hidetaka Hiyama, Masatoshi Chihiro, Hideki Kawasome, Yoko Sakamoto, Hironobu Ishiyama, Takumi Sumida, Kazuhiko Fujita, Hideki Kitagaki
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Publication number: 20070238758Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.Type: ApplicationFiled: May 16, 2007Publication date: October 11, 2007Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
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Publication number: 20070105911Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: (wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.Type: ApplicationFiled: December 12, 2006Publication date: May 10, 2007Inventors: Masatoshi Chihiro, Takayuki Matsuzani, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Jurimura, Fujio Tabusa
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Publication number: 20060167062Abstract: The object of this invention is to provide an enema preparation effective in treating inflammatory bowel diseases. The enema preparation of this invention includes at least one selected from the group consisting of thiazole compounds having the following general formula and the salts thereof: wherein R1 represents a phenyl group which may have 1 to 3 lower alkoxy groups as substituents on the phenyl ring and R2 a pyridyl group which may have 1 to 3 carboxyl groups as substituents on the pyridine ring.Type: ApplicationFiled: July 16, 2004Publication date: July 27, 2006Inventors: Takashi Maeda, Hisashi Nagamoto, Masatoshi Chihiro
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Publication number: 20040014792Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: 1Type: ApplicationFiled: April 29, 2003Publication date: January 22, 2004Applicant: Otsuka Pharmaceutical Co. Ltd.Inventors: Masatoshi Chihiro, TakayukI Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Fujio Tabusa
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Patent number: 6583163Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: (wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.Type: GrantFiled: June 25, 2001Date of Patent: June 24, 2003Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
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Publication number: 20020013469Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: 1Type: ApplicationFiled: June 25, 2001Publication date: January 31, 2002Applicant: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
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Patent number: 6291487Abstract: The present invention provides an agent for inhibiting cytokine production or cell adhesion, comprising at least one compound selected from the group consisting of thiazole derivatives represented by the following general formula: [wherein R1 is a phenyl group which may have a lower alkoxy group(s) as a substituent(s) on the phenyl ring, and R2 is a group represented by the following general formula: [wherein R3's, which may be the same or different, are each a carboxyl group, a lower alkoxy group or the like) or the like] and salts thereof.Type: GrantFiled: March 29, 1999Date of Patent: September 18, 2001Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Takayuki Matsuzaki, Hisashi Nagamoto, Goro Miyakoda, Shinobu Sueyoshi, Toyoki Mori, Kazuyoshi Kitano, Isao Takemura, Hiroshi Yamashita, Muneaki Kurimura, Fujio Tabusa
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Patent number: 6080764Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## [wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: March 25, 1997Date of Patent: June 27, 2000Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5677319Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## ?wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom! or a salt thereof.Type: GrantFiled: June 7, 1995Date of Patent: October 14, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5643932Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), ##STR1## [wherein R.sup.1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R.sup.2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R.sup.3 represents a group of the formula, ##STR2## (R.sup.4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group. m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: May 19, 1995Date of Patent: July 1, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 5639770Abstract: A thiazole derivative of the general formula: ##STR1## The thiazole derivatives have an excellent inhibitory activity for superoxide radical.Type: GrantFiled: December 11, 1995Date of Patent: June 17, 1997Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi
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Patent number: 4963566Abstract: A hydroquinoline compound of the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, A, l, m and n are as defined or its pharmaceutically acceptable salt, composition containing the compound and processes for preparing same are disclosed. The compound is useful as an antiulcer agent.Type: GrantFiled: March 27, 1987Date of Patent: October 16, 1990Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Minoru Uchida, Seiji Morita, Masatoshi Chihiro
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Patent number: 4880815Abstract: Novel tetrahydroquinoline derivatives and salts thereof and novel imidazopyridine derivatives and salts thereof, both having excellent anti-peptic ulcer activities, and are useful as treating agents for peptic ulcers such as gastric ulcer, duodenum ulcer and the like.Type: GrantFiled: October 16, 1987Date of Patent: November 14, 1989Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Minoru Uchida, Seiji Morita, Masatoshi Chihiro, Kazuyuki Nakagawa
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Patent number: 4738970Abstract: Novel tetrahydroquinoline derivatives and salts thereof and novel imidazopyridine derivatives and salts thereof, both having excellent anti-peptic ulcer activities, and are useful as treating agents for peptic ulcers such as gastric ulcer, duodenum ulcer and the like.Type: GrantFiled: June 16, 1987Date of Patent: April 19, 1988Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Minoru Uchida, Seiji Morita, Masatoshi Chihiro, Kazuyuki Nakagawa
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Patent number: RE37556Abstract: A superoxide radical inhibitor containing, as an effective ingredient, an azole derivative represented by the general formula (1), [wherein R1 represents a phenyl group which may have 1-3 lower alkoxy groups as substituent(s) on the phenyl ring, a phenyl group having a lower alkylenedioxy group, or the like; R2 represents a hydrogen atom, a phenyl group, a halogen atom, a lower alkoxycarbonyl group, a lower alkyl group, an amino-lower alkyl group which may have a lower alkyl group as a substituent, a dihydrocarbostyril group, or the like; R3 represents a group of the formula, (R4B represents a hydroxyl group, a carboxy group, a lower alkenyl group or a lower alkyl group, m represents 0, 1 or 2); X represents a sulfur atom or an oxygen atom] or a salt thereof.Type: GrantFiled: February 8, 1999Date of Patent: February 19, 2002Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Masatoshi Chihiro, Hajime Komatsu, Michiaki Tominaga, Yoichi Yabuuchi