Patents by Inventor Nobuhisa Masuda
Nobuhisa Masuda 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: 10399968Abstract: Problem to be Solved There is a need for a new antibiotic having a novel mechanism of action which exhibit strong antibacterial activity not only against sensitive bacteria but also against resistant bacteria thereof, and at the same time possesses excellent solubility an a safety profile amenable to human use. Solution to the Problem As a result of intensive research, the present inventors have found that a compound represented by general formula (I), a stereoisomer, or a pharmaceutically acceptable salt thereof inhibits DNA gyrase GyrB subunit and/or topoisomerase IV ParE subunit possesses excellent solubility and a safety profile for use in humans for the treatment of bacterial infectious diseases.Type: GrantFiled: September 28, 2016Date of Patent: September 3, 2019Assignee: Daiichi Sankyo Company, LimitedInventors: Manoj Kumar Khera, Tarun Mathur, Jitendra A. Sattigeri, Nobuhisa Masuda, Tsuyoshi Soneda, Yoshiko Kagoshima, Toshiyuki Konosu, Tetsuya Suzuki, Makoto Yamaoka, Ryo Itooka
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Publication number: 20180327399Abstract: Problem to be Solved There is a need for a new antibiotic having a novel mechanism of action which exhibit strong antibacterial activity not only against sensitive bacteria but also against resistant bacteria thereof, and at the same time possesses excellent solubility an a safety profile amenable to human use. Solution to the Problem As a result of intensive research, the present inventors have found that a compound represented by general formula (I), a stereoisomer, or a pharmaceutically acceptable salt thereof inhibits DNA gyrase GyrB subunit and/or topoisomerase IV ParE subunit possesses excellent solubility and a safety profile for use in humans for the treatment of bacterial infectious diseases.Type: ApplicationFiled: September 28, 2016Publication date: November 15, 2018Applicant: Daiichi Sankyo Company, LimitedInventors: Manoj Kumar Khera, Tarun Mathur, Jitendra A. Sattigeri, Nobuhisa Masuda, Tsuyoshi Soneda, Yoshiko Kagoshima, Toshiyuki Konosu, Tetsuya Suzuki, Makoto Yamaoka, Ryo Itooka
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Patent number: 8927588Abstract: To develop an antibiotic having a novel mechanism of action, the present inventors have searched for a compound that has weak cytotoxicity, the physical property of high solubility in water, the effect of inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and sufficient antibacterial activity. As a result, the present inventors have completed the present invention by finding that a compound of the present invention represented by the general formula (1), a pharmacologically acceptable salt thereof, and a prodrug thereof have desirable properties. The present invention provides a pharmaceutical composition (particularly, a preventive or therapeutic composition for infectious disease) comprising a compound represented by the formula (1), a pharmacologically acceptable salt thereof, or a prodrug thereof as an active ingredient.Type: GrantFiled: September 13, 2013Date of Patent: January 6, 2015Assignee: Daiichi Sankyo Company, LimitedInventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
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Publication number: 20140073622Abstract: To develop an antibiotic having a novel mechanism of action, the present inventors have searched for a compound that has weak cytotoxicity, the physical property of high solubility in water, the effect of inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and sufficient antibacterial activity. As a result, the present inventors have completed the present invention by finding that a compound of the present invention represented by the general formula (1), a pharmacologically acceptable salt thereof, and a prodrug thereof have desirable properties. The present invention provides a pharmaceutical composition (particularly, a preventive or therapeutic composition for infectious disease) comprising a compound represented by the formula (1), a pharmacologically acceptable salt thereof, or a prodrug thereof as an active ingredient.Type: ApplicationFiled: September 13, 2013Publication date: March 13, 2014Applicant: Daiichi Sankyo Company, LimitedInventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
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Patent number: 8536197Abstract: An antibiotic compound having a novel mechanism of action, weak cytotoxicity, high solubility in water, effective in inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and having antibacterial activity.Type: GrantFiled: December 26, 2008Date of Patent: September 17, 2013Assignee: Daiichi Sankyo Company, LimitedInventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
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Patent number: 8197783Abstract: Provided is a method for separating and recovering conversion reaction gas, wherein after a conversion reaction process for producing trichlorosilane from hydrogen gas and silicon tetrachloride comprising; condensing step of cooling discharged gas, separating step of silicon tetrachloride from the condensed liquid, and recovering disilicon hexachloride. For example, the method includes a first distillation process for distilling trichlorosilane from the condensed liquid, a second distillation process for distilling silicon tetrachloride from residual liquid of the first distillation process, and a third distillation process for distilling disilicon hexachloride from residual liquid of the second distillation process.Type: GrantFiled: November 26, 2008Date of Patent: June 12, 2012Assignee: Mitsubishi Materials CorporationInventors: Nobuhisa Masuda, Noboru Tachino
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Publication number: 20100311966Abstract: An antibiotic compound having a novel mechanism of action, weak cytotoxicity, high solubility in water, effective in inhibiting both DNA gyrase GyrB and topoisomerase IV ParE subunits, and having antibacterial activity.Type: ApplicationFiled: December 26, 2008Publication date: December 9, 2010Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Tsuyoshi Soneda, Hiroshi Takeshita, Yoshiko Kagoshima, Yuko Yamamoto, Takafumi Hosokawa, Toshiyuki Konosu, Nobuhisa Masuda, Takuya Uchida, Issei Achiwa, Junichi Kuroyanagi, Tetsunori Fujisawa, Aki Yokomizo, Tetsuji Noguchi
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Publication number: 20090142246Abstract: Provided is a method for separating and recovering conversion reaction gas, wherein after a conversion reaction process for producing trichlorosilane from hydrogen gas and silicon tetrachloride comprising; condensing step of cooling discharged gas, separating step of silicon tetrachloride from the condensed liquid, and recovering disilicon hexachloride. For example, the method includes a first distillation process for distilling trichlorosilane from the condensed liquid, a second distillation process for distilling silicon tetrachloride from residual liquid of the first distillation process, and a third distillation process for distilling disilicon hexachloride from residual liquid of the second distillation process.Type: ApplicationFiled: November 26, 2008Publication date: June 4, 2009Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Nobuhisa Masuda, Noboru Tachino