Patents by Inventor Yoshimasa Takahashi
Yoshimasa Takahashi 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).
-
Publication number: 20170152242Abstract: Provided is a novel pyrazine derivative represented by the following formula (I) or a pharmaceutically acceptable salt thereof, or a solvate thereof which is useful for treating or preventing diseases in which URAT1 is involved, including gout, hyperuricemia, hypertension, renal diseases such as interstitial nephritis and the like, diabetes, arteriosclerosis, Lesch-Nyhan syndrome, and the like.Type: ApplicationFiled: May 12, 2015Publication date: June 1, 2017Applicant: TEIJIN PHARMA LIMITEDInventors: Akinobu MARUYAMA, Susumu TAKEUCHI, Yoshimasa TAKAHASHI
-
Patent number: 9637469Abstract: Provided is a pyridine derivative represented by formula (I), a prodrug thereof, a pharmaceutically acceptable salt of the pyridine derivative or the prodrug, or a solvate of the pyridine derivative, the prodrug or the pharmaceutically acceptable salt, which is useful for treatment or prophylaxis of diseases associated with URAT1 such as gout, hyperuricemia, hypertension, kidney diseases such as interstitial nephritis, diabetes, arteriosclerosis and Lesch-Nyhan syndrome.Type: GrantFiled: November 13, 2013Date of Patent: May 2, 2017Assignee: Teijin Pharma LimitedInventors: Akinobu Maruyama, Hirofumi Kamada, Mika Fujinuma, Susumu Takeuchi, Hiroshi Saitoh, Yoshimasa Takahashi
-
Patent number: 9617240Abstract: Provided are a compound expressed by formula (I) or a pharmacologically permissible salt thereof, as well as a drug or drug composition that contains this compound as an active ingredient, having a xanthine oxidase inhibiting effect that is very useful for treating or preventing diseases that are contributed to by xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stones, hypertension, dyslipidemia, diabetes, cardiovascular disease such as heart failure and arterial sclerosis, renal disease such as diabetic near opacity and the like, respiratory disease such as chronic obstructive pulmonary disease and the like, autoimmune diseases such as inflammatory bowel disease, and the like. [In the formula, A, X, Y, Z, R, and R1 have the meaning set forth in claim 1].Type: GrantFiled: March 28, 2014Date of Patent: April 11, 2017Assignee: Teijin Pharma LimitedInventors: Asahi Kawana, Chikashi Kanazawa, Masayuki Tera, Yoshimasa Takahashi, Mariko Imazeki, Hiroyuki Takahashi, Akira Tanokura
-
Patent number: 9545445Abstract: The present invention relates to a therapeutic drug or a preventive drug for hypertension or high-normal blood pressure, comprising (a) and (b) as active ingredients: (a) a 2-phenylthiazole compound represented by formula (I) or a pharmaceutically acceptable salt thereof; (b) at least one compound or a pharmaceutically acceptable salt thereof selected from the group consisting of calcium antagonists, renin-angiotensin system inhibitors, diuretics, sympatholytic agents, vasodilators, and medicinally acceptable salts of these. The present invention also relates to a therapeutic method or a preventive method for hypertension or high-normal blood pressure, comprising administering the above (a) and (b) in amounts effective for treating or preventing hypertension or high-normal blood pressure.Type: GrantFiled: June 25, 2010Date of Patent: January 17, 2017Assignee: Teijin Pharma LimitedInventors: Takashi Shirakura, Mizuho Tamura, Yoshimasa Takahashi, Ippei Kuwahara
-
Patent number: 9388174Abstract: The present invention provides: a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, which has an excellent inhibitory activity on xanthine oxidase and is useful as a therapeutic agent or a prophylactic agent for diseases associated with xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stone, hypertension, dyslipidemia, diabetes, cardiovascular diseases including arteriosclerosis and heart failure, renal diseases including diabetic nephropathy, respiratory diseases including chronic obstructive pulmonary disease, inflammatory bowel disease or autoimmune diseases; and a medicine or a pharmaceutical composition comprising the compound or the salt as an active ingredient.Type: GrantFiled: January 30, 2014Date of Patent: July 12, 2016Assignee: Teijin Pharma LimitedInventors: Asahi Kawana, Chikashi Kanazawa, Yoshimasa Takahashi, Takashi Shirakura
-
Publication number: 20160039784Abstract: Provided are a compound expressed by formula (I) or a pharmacologically permissible salt thereof, as well as a drug or drug composition that contains this compound as an active ingredient, having a xanthine oxidase inhibiting effect that is very useful for treating or preventing diseases that are contributed to by xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stones, hypertension, dyslipidemia, diabetes, cardiovascular disease such as heart failure and arterial sclerosis, renal disease such as diabetic near opacity and the like, respiratory disease such as chronic obstructive pulmonary disease and the like, autoimmune diseases such as inflammatory bowel disease, and the like. [In the formula, A, X, Y, Z, R, and R1 have the meaning set forth in claim 1].Type: ApplicationFiled: March 28, 2014Publication date: February 11, 2016Applicant: TEIJIN PHARMA LIMITEDInventors: Asahi KAWANA, Chikashi KANAZAWA, Masayuki TERA, Yoshimasa TAKAHASHI, Mariko IMAZEKI, Hiroyuki TAKAHASHI, Akira TANOKURA
-
Publication number: 20150376174Abstract: The present invention provides: a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, which has an excellent inhibitory activity on xanthine oxidase and is useful as a therapeutic agent or a prophylactic agent for diseases associated with xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stone, hypertension, dyslipidemia, diabetes, cardiovascular diseases including arteriosclerosis and heart failure, renal diseases including diabetic nephropathy, respiratory diseases including chronic obstructive pulmonary disease, inflammatory bowel disease or autoimmune diseases; and a medicine or a pharmaceutical composition comprising the compound or the salt as an active ingredient.Type: ApplicationFiled: January 30, 2014Publication date: December 31, 2015Applicant: TEIJIN PHARMA LIMITEDInventors: Asahi KAWANA, Chikashi KANAZAWA, Yoshimasa TAKAHASHI, Takashi SHIRAKURA
-
Publication number: 20150284358Abstract: Provided is a pyridine derivative represented by formula (I), a prodrug thereof, a pharmaceutically acceptable salt of the pyridine derivative or the prodrug, or a solvate of the pyridine derivative, the prodrug or the pharmaceutically acceptable salt, which is useful for treatment or prophylaxis of diseases associated with URAT1 such as gout, hyperuricemia, hypertension, kidney diseases such as interstitial nephritis, diabetes, arteriosclerosis and Lesch-Nyhan syndrome.Type: ApplicationFiled: November 13, 2013Publication date: October 8, 2015Applicant: Teijin Pharma LimitedInventors: Akinobu Maruyama, Hirofumi Kamada, Mika Fujinuma, Susumu Takeuchi, Hiroshi Saitoh, Yoshimasa Takahashi
-
Publication number: 20150130476Abstract: A direct-current regulator includes: a fuse, a high-side switch, and a low-side switch connected in series between a high potential side input voltage terminal and a low potential side input voltage terminal; and a control unit configured to control the high-side switch and the low-side switch, wherein the fuse is formed on a silicon substrate on which the high-side switch is formed, and the fuse includes: two electrodes separately formed on the silicon substrate; a plurality of band-shaped polysilicon films formed between the two electrodes; and a linking part of a polysilicon film provided so as to connect the neighboring band-shaped polysilicon films at intermediate portions.Type: ApplicationFiled: September 25, 2014Publication date: May 14, 2015Applicant: FUJITSU LIMITEDInventors: Yoshimasa TAKAHASHI, Yuji UCHIYAMA
-
Publication number: 20140218920Abstract: According to one embodiment, a lighting device is provided which includes: a module; a first cover member; and a second cover member. The module has a light emitting body and a frame. The light emitting body emits light by organic electro-luminescence. The frame is formed of a light transmitting material. The first cover member is formed of a material that is a light transmitting material and has a stiffness higher than that of the frame. The first cover member is disposed on one end side of the module. The second cover member is formed of a material that is a light transmitting material and has a stiffness higher than that of the frame. The second cover member is disposed on the other end side of the module such that the module is sandwiched between the first cover member and the second cover member.Type: ApplicationFiled: September 18, 2013Publication date: August 7, 2014Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Junya Hayashi, Hideki Okawa, Hiroshi Kamata, Yoshimasa Takahashi
-
Publication number: 20140218921Abstract: According to one embodiment, there is provided a lighting device including a plurality of panels; a frame; and a connection body. The panel emits light by organic electro-luminescence. The frame is formed of a material which is an insulating material and transmits the light. The frame seals the plurality of panels. The connection body has conductivity. The panel has a substrate, a first electrode, a second electrode, a first conductive body, and a second conductive body. The first conductive body has conductivity, is connected to the first electrode, and is provided in a first side surface of the substrate. The second conductive body has conductivity, is connected to the second electrode, and is provided in a second side surface of the substrate. The plurality of panels are electrically connected to each other via the first conductive body, the second conductive body, and the connection body.Type: ApplicationFiled: September 19, 2013Publication date: August 7, 2014Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Hideki Okawa, Junya Hayashi, Hiroshi Kamata, Yoshimasa Takahashi
-
Patent number: 8617841Abstract: [PROBLEMS] To provide a polypeptide having a novel structure and showing an activity of inhibiting angiogenesis or an activity of inhibiting osteoclastogenesis, and to provide a recombinant protein by constructing a method of purifying the above protein. To provide an ingredient useful in designing remedies for tendinitis, rheumatoid arthritis, arthritis deformans, malignant tumor, etc. [MEANS FOR SOLVING PROBLEMS] A novel soluble polypeptide protein.Type: GrantFiled: October 21, 2004Date of Patent: December 31, 2013Assignee: Teijin Pharma LimitedInventors: Kei Yamana, Yasunori Nakayama, Yoshimasa Takahashi, Eiji Ochiai, Hitoshi Wada, Yoshiaki Azuma
-
Patent number: 8492116Abstract: [PROBLEMS] To provide a polypeptide having a novel structure and showing an activity of inhibiting angiogenesis or an activity of inhibiting osteoclastogenesis, and to provide a recombinant protein by constructing a method of purifying the above protein. To provide an ingredient useful in designing remedies for tendinitis, rheumatoid arthritis, arthritis deformans, malignant tumor, etc. [MEANS FOR SOLVING PROBLEMS] A novel soluble polypeptide protein.Type: GrantFiled: October 21, 2004Date of Patent: July 23, 2013Assignee: Teijin Pharma LimitedInventors: Kei Yamana, Yasunori Nakayama, Yoshimasa Takahashi, Eiji Ochiai, Hitoshi Wada, Yoshiaki Azuma
-
Patent number: 8481676Abstract: [Problems] To provide a polypeptide having a novel structure and showing an activity of inhibiting angiogenesis or an activity of inhibiting osteoclastogenesis, and to provide a recombinant protein by constructing a method of purifying the above protein. To provide an ingredient useful in designing remedies for tendinitis, rheumatoid arthritis, arthritis deformans, malignant tumor, etc. [Means for Solving Problems] A novel soluble polypeptide protein.Type: GrantFiled: February 9, 2009Date of Patent: July 9, 2013Assignee: Teijin Pharma LimitedInventors: Kei Yamana, Yasunori Nakayama, Yoshimasa Takahashi, Eiji Ochiai, Hitoshi Wada, Yoshiaki Azuma
-
Publication number: 20130109726Abstract: The present invention provides a therapeutic or preventive agent for hypertension or normal high blood pressure, and for renal dysfunction, that is more effective than existing drugs. More specifically, the present invention provides a sustained-release pharmaceutical composition for treating or preventing hypertension or normal high blood pressure, and for renal dysfunction, comprising as an active ingredient a 2-phenylthiazole compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: June 24, 2011Publication date: May 2, 2013Applicant: TEIJIN PHARMA LIMITEDInventors: Takashi Shirakura, Mizuho Tamura, Yoshimasa Takahashi, Ippei Kuwahara
-
Patent number: 7973405Abstract: An integrated circuit for driving a semiconductor device, which is adaptable for demands, such as a higher output (larger current), a higher voltage, and a smaller loss, and has a small size, is produced at a low cost, and has high reliability. A power converter including such an integrated circuit is also provided. Circuit elements constituting a drive section of an upper arm drive circuit 212, a level shift circuit 20 including a current sensing circuit 210, a drive section of a lower arm drive circuit 222, and a drive signal processing circuit 224 are integrated and built in one high withstand voltage IC chip 200. Circuit elements constituting a final output stage buffer section 213 of the upper arm drive circuit 212 are built in a vertical p-channel MOS-FET chip 213p and a vertical n-channel MOS-FET chip 213n.Type: GrantFiled: May 20, 2010Date of Patent: July 5, 2011Assignee: Hitachi, Ltd.Inventors: Yoshimasa Takahashi, Naoki Sakurai, Masashi Yura, Masahiro Iwamura, Mutsuhiro Mori
-
Publication number: 20110046192Abstract: The present invention relates to a therapeutic drug or a preventive drug for hypertension or high-normal blood pressure, comprising (a) and (b) as active ingredients: (a) a 2-phenylthiazole compound represented by formula (I) or a pharmaceutically acceptable salt thereof; (b) at least one compound or a pharmaceutically acceptable salt thereof selected from the group consisting of calcium antagonists, renin-angiotensin system inhibitors, diuretics, sympatholytic agents, vasodilators, and medicinally acceptable salts of these. The present invention also relates to a therapeutic method or a preventive method for hypertension or high-normal blood pressure, comprising administering the above (a) and (b) in amounts effective for treating or preventing hypertension or high-normal blood pressure.Type: ApplicationFiled: June 25, 2010Publication date: February 24, 2011Applicant: Teijin Pharma LimitedInventors: Takashi SHIRAKURA, Mizuho Tamura, Yoshimasa Takahashi, Ippei Kuwahara
-
Publication number: 20100225363Abstract: An integrated circuit for driving a semiconductor device, which is adaptable for demands, such as a higher output (larger current), a higher voltage, and a smaller loss, and has a small size, is produced at a low cost, and has high reliability. A power converter including such an integrated circuit is also provided. Circuit elements constituting a drive section of an upper arm drive circuit 212, a level shift circuit 20 including a current sensing circuit 210, a drive section of a lower arm drive circuit 222, and a drive signal processing circuit 224 are integrated and built in one high withstand voltage IC chip 200. Circuit elements constituting a final output stage buffer section 213 of the upper arm drive circuit 212 are built in a vertical p-channel MOS-FET chip 213p and a vertical n-channel MOS-FET chip 213n.Type: ApplicationFiled: May 20, 2010Publication date: September 9, 2010Applicant: Hitachi, Ltd.Inventors: Yoshimasa TAKAHASHI, Naoki Sakurai, Masashi Yura, Masahiro Iwamura, Mutsuhiro Mori
-
Patent number: 7763974Abstract: An integrated circuit for driving a semiconductor device, which is adaptable for demands, such as a higher output (larger current), a higher voltage, and a smaller loss, and has a small size, is produced at a low cost, and has high reliability. A power converter including such an integrated circuit is also provided. Circuit elements constituting a drive section of an upper arm drive circuit 212, a level shift circuit 20 including a current sensing circuit 210, a drive section of a lower arm drive circuit 222, and a drive signal processing circuit 224 are integrated and built in one high withstand voltage IC chip 200. Circuit elements constituting a final output stage buffer section 213 of the upper arm drive circuit 212 are built in a vertical p-channel MOS-FET chip 213p and a vertical n-channel MOS-FET chip 213n.Type: GrantFiled: February 13, 2004Date of Patent: July 27, 2010Assignee: Hitachi, Ltd.Inventors: Yoshimasa Takahashi, Naoki Sakurai, Masashi Yura, Masahiro Iwamura, Mutsuhiro Mori
-
Publication number: 20090313711Abstract: [PROBLEMS] To provide a polypeptide having a novel structure and showing an activity of inhibiting angiogenesis or an activity of inhibiting osteoclastogenesis, and to provide a recombinant protein by constructing a method of purifying the above protein. To provide an ingredient useful in designing remedies for tendinitis, rheumatoid arthritis, arthritis deformans, malignant tumor, etc. [MEANS FOR SOLVING PROBLEMS] A novel soluble polypeptide protein.Type: ApplicationFiled: October 21, 2004Publication date: December 17, 2009Inventors: Kei Yamana, Yasunori Nakayama, Yoshimasa Takahashi, Eiji Ochiai, Hitoshi Wada, Yoshiaki Azuma