Patents by Inventor Akira Nakao
Akira Nakao 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).
-
Patent number: 9952389Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.Type: GrantFiled: March 5, 2015Date of Patent: April 24, 2018Assignee: NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF FUKUIInventors: Toshio Katsuyama, Akira Nakao
-
Publication number: 20170146744Abstract: To provide a multiplexer that makes it possible to achieve a reduction in size and that minimizes the influence of the expansion of laser light on a multiplexing unit. A multiplexer is provided with a plurality of waveguides, multiplexing units that are provided at an intermediate location within the waveguides, and laser light sources, wherein: the first multiplexing unit is arranged at a position that is closest to the laser light sources; and the laser light sources that have an optical axis at a position that is separated from the transmission axis of the visible light that is introduced into the first multiplexing unit are arranged so that the optical axis is inclined with respect to the transmission axis and the outer periphery of laser light that expands at a predetermined expansion angle passes in front of the first multiplexing unit.Type: ApplicationFiled: March 5, 2015Publication date: May 25, 2017Applicant: NATIONAL UNIVERSITY CORPORATION UNIVERSITY OF FUKUIInventors: Toshio Katsuyama, Akira Nakao
-
Publication number: 20170073335Abstract: The present invention provides a compound having a particular chemical structure or a pharmacologically acceptable salt thereof which has an excellent inhibitory effect on EZH1 and/or EZH2 activity. The present invention provides a compound having a 1,3-benzodioxole structure represented by the general formula (I) or a pharmacologically acceptable salt thereof, or a pharmaceutical composition comprising the compound (wherein R1, R2, R3, R4, R5, R6, and V in the formula (I) are each as defined in the present specification).Type: ApplicationFiled: March 16, 2015Publication date: March 16, 2017Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Osamu KANNO, Jun WATANABE, Takao HORIUCHI, Akira NAKAO, Keisuke SUZUKI, Tomonori YAMASAKI, Nobuaki ADACHI, Daisuke HONMA, Yoshito HAMADA
-
Patent number: 8513235Abstract: The invention provides a homocysteine synthase inhibitor useful for the prophylaxis or treatment of diseases involving homocysteine synthase. The homocysteine synthase inhibitor is a compound of the formula (I) wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof.Type: GrantFiled: April 10, 2009Date of Patent: August 20, 2013Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Akira Nakao, Hiroko Suzuki, Ryo Tatsumi, Maki Seki, Minoru Tanaka, Tomofumi Setsuta, Hiroshi Iwasaki
-
Patent number: 8427550Abstract: An image processing device of an example of the invention comprises a section which acquires a gain value obtained by an automatic white balance process executed on image data to be processed, a section which, based on the gain value, determines a correction color matrix coefficient having a property of correcting a change in an appearance caused by a color temperature corresponding to the gain value, and a section which, based on the correction color matrix coefficient, performs a color adjustment on the image data obtained by the automatic white balance process.Type: GrantFiled: August 11, 2009Date of Patent: April 23, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Ogasahara, Akira Nakao
-
Publication number: 20120196824Abstract: The invention provides a therapeutic drug for ischemic stroke. The therapeutic drug has the formula (I) wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof, as an active ingredient.Type: ApplicationFiled: October 8, 2010Publication date: August 2, 2012Applicant: MITSUBISHI TANABE PHARMA CORPORATIONInventors: Akira Nakao, Hiroko Suzuki, Ryo Tatsumi, Tomofumi Setsuta, Maki Seki, Hiroshi Iwasaki, Minoru Tanaka
-
Patent number: 8183272Abstract: Compounds exhibiting calcium receptor antagonist activity that are safe and orally administrable having Formula (I) or pharmaceutically acceptable salts thereof:Type: GrantFiled: June 23, 2011Date of Patent: May 22, 2012Assignee: Daiichi Sankyo Company, LimitedInventors: Akira Nakao, Kentoku Gotanda, Kazumasa Aoki, Shimpei Hirano, Yoshiharu Hiruma, Takeshi Shiiki
-
Patent number: 8173631Abstract: Compounds exhibiting calcium receptor antagonist activity that are safe and orally administrable having Formula (I) or pharmaceutically acceptable salts thereofType: GrantFiled: June 23, 2011Date of Patent: May 8, 2012Assignee: Daiichi Sankyo Company, LimitedInventors: Akira Nakao, Kentoku Gotanda, Kazumasa Aoki, Shimpei Hirano, Yoshiharu Hiruma, Takeshi Shiiki
-
Publication number: 20110319468Abstract: Compounds exhibiting calcium receptor antagonist activity that are safe and orally administrable having Formula (I) or pharmaceutically acceptable salts thereofType: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Akira Nakao, Kentoku Gotanda, Kazumasa Aoki, Shimpei Hirano, Yoshiharu Hiruma, Takeshi Shiiki
-
Publication number: 20110319359Abstract: Compounds exhibiting calcium receptor antagonist activity that are safe and orally administrable having Formula (I) or pharmaceutically acceptable salts thereof:Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Applicant: DAIICHI SANKYO COMPANY, LIMITEDInventors: Akira Nakao, Kentoku Gotanda, Kazumasa Aoki, Shimpei Hirano, Yoshiharu Hiruma, Takeshi Shiiki
-
Patent number: 7907481Abstract: An optical disc drive device has an FE signal generator which generates a focus error signal, a TE signal generator which generates a tracking error signal, a return beam detector which detects a return beam reflected by an optical disc after irradiated by an optical pickup to generate a return beam level signal, a return beam gain setting part which sets amplitude adjustment amount of the return beam level signal so that a signal level of the return beam level signal generated by the return beam detector coincides with a predetermined reference level, an FE gain setting part which sets amplitude adjustment amount of the focus error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gain setting part so that a signal amplitude of the focus error signal is constant, and a TE gain setting part which sets amplitude adjustment amount of the tracking error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gainType: GrantFiled: December 17, 2008Date of Patent: March 15, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Inoue, Hiroshi Shimada, Akira Nakao, Yasuhiro Hayashi
-
Publication number: 20110034440Abstract: The invention provides a homocysteine synthase inhibitor useful for the prophylaxis or treatment of diseases involving homocysteine synthase. The homocysteine synthase inhibitor is a compound of the formula (I) wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof.Type: ApplicationFiled: April 10, 2009Publication date: February 10, 2011Applicant: MITSUBISHI TANABE PHARMA CORPORATIONInventors: Akira Nakao, Hiroko Suzuki, Ryo Tatsumi, Maki Seki, Minoru Tanaka, Tomofumi Setsuta, Hiroshi Iwasaki
-
Publication number: 20100039528Abstract: An image processing device of an example of the invention comprises a section which acquires a gain value obtained by an automatic white balance process executed on image data to be processed, a section which, based on the gain value, determines a correction color matrix coefficient having a property of correcting a change in an appearance caused by a color temperature corresponding to the gain value, and a section which, based on the correction color matrix coefficient, performs a color adjustment on the image data obtained by the automatic white balance process.Type: ApplicationFiled: August 11, 2009Publication date: February 18, 2010Inventors: Takayuki OGASAHARA, Akira NAKAO
-
Publication number: 20090161504Abstract: An optical disc drive device has an FE signal generator which generates a focus error signal, a TE signal generator which generates a tracking error signal, a return beam detector which detects a return beam reflected by an optical disc after irradiated by an optical pickup to generate a return beam level signal, a return beam gain setting part which sets amplitude adjustment amount of the return beam level signal so that a signal level of the return beam level signal generated by the return beam detector coincides with a predetermined reference level, an FE gain setting part which sets amplitude adjustment amount of the focus error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gain setting part so that a signal amplitude of the focus error signal is constant, and a TE gain setting part which sets amplitude adjustment amount of the tracking error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gainType: ApplicationFiled: December 17, 2008Publication date: June 25, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Inoue, Hiroshi Shimada, Akira Nakao, Yasuhiro Hayashi
-
Patent number: 7535941Abstract: A laser-drive-current control circuit outputs a drive current indicating signal for indicating a laser drive current for driving a laser light emitting element that emits a laser beam to an optical disk and controls the output of the laser drive current based on a light emission monitor signal.Type: GrantFiled: December 27, 2006Date of Patent: May 19, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Inoue, Akira Nakao, Yasuhiro Hayashi
-
Patent number: 7486711Abstract: An automatic power control filter circuit that outputs a signal corrected to make a laser drive current for driving a laser light emitting element irradiating an optical disc with a laser beam become a desired value, on the basis of a signal obtained by sampling and holding a light emission monitor signal corresponding to an output current of a photodetector for detecting output power of the laser light emitting element.Type: GrantFiled: February 7, 2007Date of Patent: February 3, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Akira Nakao, Takashi Inoue, Yasuhiro Hayashi
-
Patent number: 7300645Abstract: Disclosed is an oral composition comprising palatinit. More particularly, disclosed is an oral composition comprising palatinit which exerts a synergistic effect when combined with a fluorine or zinc compound.Type: GrantFiled: October 24, 2002Date of Patent: November 27, 2007Assignee: Sunstar Kabushiki KaishaInventors: Tsutomu Takatsuka, Akira Nakao
-
Publication number: 20070219234Abstract: [Problem to be Solved]The present invention provides a compound promoting osteogenesis. [Solution] The present invention provides a compound having the following general formula (I) wherein R1 is H or alkyl, R2 is RaS—, RaO—, RaNH—, Ra(Rb)N— or cyclic amino, and Ra and Rb are alkyl which may be substituted, cycloalkyl which may be substituted, or the like, or a pharmacologically acceptable salt thereof.Type: ApplicationFiled: April 11, 2005Publication date: September 20, 2007Inventors: Kiyoshi Oizumi, Satoru Naito, Akira Nakao, Tsuyoshi Shinozuka, Satoshi Matsui, Kousei Shimada
-
Publication number: 20070183468Abstract: An automatic power control filter circuit which outputs a signal corrected to make a laser drive current for driving a laser light emitting element irradiating an optical disc with a laser beam become a desired value, on the basis of a signal obtained by sampling and holding a light emission monitor signal corresponding to an output current of a photodetector for detecting output power of the laser light emitting element, has an offset adjusting circuit which measures and stores an offset voltage of the signal sampled and held when the laser is prevented from emitting light; a first operation circuit which performs offset correction by calculating the offset voltage stored in the offset adjusting circuit and the signal sampled and held when the laser is allowed to emit light; a second operation circuit which calculates an error by comparing a value corrected by the first operation circuit with a value obtained by multiplying a target value by a desired coefficient in order to perform optimum power control; anType: ApplicationFiled: February 7, 2007Publication date: August 9, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akira NAKAO, Takashi INOUE, Yasuhiro HAYASHI
-
Publication number: 20070147450Abstract: A laser-drive-current control circuit that outputs a drive current indicating signal for indicating a laser drive current for driving a laser light emitting element that emits a laser beam to an optical disk and controls the output of the laser drive current based on a light emission monitor signal, which depends on the output current of a photo-detector that measures the laser light emission power of said laser light emitting element, has a sampling and holding circuit that receives said light emission monitor signal, holds the light emission monitor signal for a predetermined time and then outputs the light emission monitor signal; a recording control pulse generator circuit that generates and outputs a drive current on/off control pulse for controlling the output of the laser drive current at a desired timing and a sample pulse for controlling said sampling and holding circuit at a desired timing based on a modulation signal that specifies marks and spaces on said optical disk; a plurality of automatic powType: ApplicationFiled: December 27, 2006Publication date: June 28, 2007Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi Inoue, Akira Nakao, Yasuhiro Hayashi