Patents by Inventor Mitsutaka Goto
Mitsutaka Goto 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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Publication number: 20140171655Abstract: The present invention provides a novel ligand represented by the following formula and a novel transition metal complex having the ligand, which shows superior enantioselectivity and catalytic efficiency, particularly high catalyst activity, in various asymmetric synthesis reactions. A transition metal complex having, as a ligand, a compound represented by the formula wherein R4 is a hydrogen atom or a C1-6 alkyl group optionally having substituent(s), and R5 and R6 are each a C1-6 alkyl group optionally having substituent(s), or the formula is a group represented by the formula wherein ring B is a 3- to 8-membered ring optionally having substituent(s).Type: ApplicationFiled: February 19, 2014Publication date: June 19, 2014Applicant: Takeda Pharmaceutical Company LimitedInventors: Mitsuhisa YAMANO, Mitsutaka GOTO, Shinji KAWAGUCHI, Masatoshi YAMADA, Jun-ichi KAWAKAMI
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Patent number: 8691718Abstract: The present invention provides a novel ligand represented by the following formula and a novel transition metal complex having the ligand, which shows superior enantioselectivity and catalytic efficiency, particularly high catalyst activity, in various asymmetric synthesis reactions. A transition metal complex having, as a ligand, a compound represented by the formula wherein R4 is a hydrogen atom or a C1-6 alkyl group optionally having substituent(s), and R5 and R6 are each a C1-6 alkyl group optionally having substituent(s), or the formula is a group represented by the formula wherein ring B is a 3- to 8-membered ring optionally having substituent(s).Type: GrantFiled: September 20, 2006Date of Patent: April 8, 2014Assignee: Takeda Pharmaceutical Company LimitedInventors: Mitsuhisa Yamano, Mitsutaka Goto, Shinji Kawaguchi, Masatoshi Yamada, Jun-ichi Kawakami
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Publication number: 20130345444Abstract: Provided is a production method of an optically active dihydrobenzofuran derivative. A production method of an optically active form of a compound represented by the formula: wherein each symbol is as defined in the specification, or a salt thereof and the like.Type: ApplicationFiled: February 16, 2012Publication date: December 26, 2013Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITEDInventors: Mitsuhisa Yamano, Mitsutaka Goto, Takeshi Kajiwara, Hiroyuki Maeda, Takahiro Konishi, Misayo Sera, Yuichiro Kondo, Seiji Yamasaki
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Patent number: 8053604Abstract: A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e and R2f are the same or different and each is a hydrogen atom and the like, and R3, R4, R5, R6, R7, R8, R9 and R10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.Type: GrantFiled: January 27, 2010Date of Patent: November 8, 2011Assignee: Takeda Pharmaceutical Company LimitedInventors: Mitsutaka Goto, Mitsuhisa Yamano
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Publication number: 20100125153Abstract: A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e and R2f are the same or different and each is a hydrogen atom and the like, and R3, R4, R5, R6, R7, R8, R9 and R10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.Type: ApplicationFiled: January 27, 2010Publication date: May 20, 2010Inventors: Mitsutaka Goto, Mitsuhisa Yamano
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Patent number: 7678942Abstract: A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e and R2f are the same or different and each is a hydrogen atom and the like, and R3, R4, R5, R6, R7, R8, R9 and R10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.Type: GrantFiled: March 6, 2007Date of Patent: March 16, 2010Assignee: Takeda Pharmaceutical Company LimitedInventors: Mitsutaka Goto, Mitsuhisa Yamano
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Patent number: 7617012Abstract: In a mixer system including: a plurality of mixer engines each provided with a programmable DSP; and a PC controlling operations of the respective mixer engines, the PC stores, as zone data, a plurality of configuration data each indicating a configuration of signal processing to be executed by one mixer engine or more out of the mixer engines under the control of the PC, accepts the selection of the zone data, and when the necessary mixer engines are in a controllable state, transfers data on a part of the aforesaid configuration which is to be assigned to each of the mixer engines, to the corresponding mixer engines. Then, when the selection of the configuration is accepted, each of the mixer engines to which the configuration is transferred is caused to execute the audio signal processing according to the selected configuration.Type: GrantFiled: February 25, 2005Date of Patent: November 10, 2009Assignee: Yamaha CorporationInventors: Satoshi Takemura, Mitsutaka Goto, Makoto Hiroi, Masahiro Shimizu, Hiromu Miyamoto
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Publication number: 20090270635Abstract: The present invention provides a novel ligand represented by the following formula and a novel transition metal complex having the ligand, which shows superior enantioselectivity and catalytic efficiency, particularly high catalyst activity, in various asymmetric synthesis reactions. A transition metal complex having, as a ligand, a compound represented by the formula wherein R4 is a hydrogen atom or a C1-6 alkyl group optionally having substituent(s), and R5 and R6 are each a C1-6 alkyl group optionally having substituent(s), or the formula is a group represented by the formula wherein ring B is a 3- to 8-membered ring optionally having substituent(s).Type: ApplicationFiled: September 20, 2006Publication date: October 29, 2009Inventors: Mitsuhisa Yamano, Mitsutaka Goto, Shinji Kawaguchi, Masatoshi Yamada, Jun-ichi Kawakami
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Publication number: 20090259328Abstract: In a mixer system including an editing device that edits a configuration of signal processing by designating a combination of a plurality of components and a DSP that processes audio signals in accordance with the signal processing configuration edited by the editing device, when the mixer engine does not store a predetermined enabling key, audio signal processing including a protected component in the mixer engine is disabled, and when the mixer engine stores the predetermined enabling key, the audio signal processing is enabled. Further, the editing device is permitted to edit a signal processing configuration including the protected component irrespective of storage of the enabling key in the mixer engine.Type: ApplicationFiled: June 24, 2009Publication date: October 15, 2009Applicant: YAMAHA CORPORATIONInventors: Mitsutaka Goto, Satoshi Takemura, Makoto Hiroi, Masatoshi Hanashiro
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Patent number: 7541498Abstract: A process for the production of phosphine-borane complexes represented by the general formula: or salts thereof: [wherein R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group (with the proviso that R1 and R2 together with the adjacent phosphorus atom may form a 4- to 6-membered ring)], characterized by converting a compound represented by the general formula: in a solvent in the presence of a borane reagent: [wherein each symbol is as defined above].Type: GrantFiled: May 18, 2004Date of Patent: June 2, 2009Assignee: Takeda Pharmaceutical Company LimitedInventors: Mitsuhisa Yamano, Mitsutaka Goto, Masatoshi Yamada
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Patent number: 7259314Abstract: In a waveform data processing apparatus, a transfer section reads out waveform data of multiple tracks stored in a first storage device in data units, and transfers the read waveform data to a second storage device having an access speed higher than an access speed of the first storage device. A reproduction section reads out the waveform data of the tracks from the second storage device for every sampling period, and which reproduces an audio signal according to the read waveform data. A control section replaces old waveform data which has been read from the second storage device by new waveform data which is read from the first storage device, whereby the audio signals of the tracks are continuously reproduced.Type: GrantFiled: March 28, 2006Date of Patent: August 21, 2007Assignee: Yamaha CorporationInventors: Hironari Kobayashi, Mitsutaka Goto
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Publication number: 20070161805Abstract: A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e and R2f are the same or different and each is a hydrogen atom and the like, and R3, R4, R5, R6, R7, R8, R9 and R10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.Type: ApplicationFiled: March 6, 2007Publication date: July 12, 2007Inventors: Mitsutaka Goto, Mitsuhisa Yamano
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Patent number: 7208633Abstract: A production method of a compound represented by the formula wherein R1a, R1b, R1c, R1d, R1e, R1f, R2a, R2b, R2c, R2d, R2e and R2f are the same or different and each is a hydrogen atom and the like, and R3, R4, R5, R6, R7, R8, R9 and R10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.Type: GrantFiled: December 5, 2002Date of Patent: April 24, 2007Assignee: Takeda Pharmaceutical Company LimitedInventors: Mitsutaka Goto, Mitsuhisa Yamano
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Patent number: 7206651Abstract: A mixer engine control program is executable by a computer for performing a method of displaying and editing a mixer configuration which specifies a mixing process of a signal processing apparatus. Logging on is made to the mixer engine control program with a user authority. Mixer configuration is read from a storage. The read mixer configuration is displayed and edited within a scope permitted by the user authority with which the mixer engine control program has been logged on. The edited mixer configuration is written back to the storage. The storage may store a protected mixer configuration created and supplied by a vendor, such that the mixer configuration created by the vendor is protected with a vendor authority higher than the user authority with which the user is able to log on the mixer engine control program.Type: GrantFiled: September 23, 2005Date of Patent: April 17, 2007Assignee: Yamaha CorporationInventors: Satoshi Takemura, Mitsutaka Goto
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Patent number: 7135582Abstract: A transition metal complex having 2,2?-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-1,1?-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of an asymmetric reaction system allows the preparation of an objective compound having an objective absolute configuration with improved efficiency.Type: GrantFiled: December 4, 2003Date of Patent: November 14, 2006Assignee: Takeda Pharmaceutiacal Company LimitedInventors: Mitsutaka Goto, Mitsuhisa Yamano, Shinji Kawaguchi
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Publication number: 20060225561Abstract: In a waveform data processing apparatus, a transfer section reads out waveform data of multiple tracks stored in a first storage device in data units, and transfers the read waveform data to a second storage device having an access speed higher than an access speed of the first storage device. A reproduction section reads out the waveform data of the tracks from the second storage device for every sampling period, and which reproduces an audio signal according to the read waveform data. A control section replaces old waveform data which has been read from the second storage device by new waveform data which is read from the first storage device, whereby the audio signals of the tracks are continuously reproduced.Type: ApplicationFiled: March 28, 2006Publication date: October 12, 2006Applicant: Yamaha CorporationInventors: Hironari Kobayashi, Mitsutaka Goto
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Publication number: 20060199968Abstract: A process for the production of phosphine-borane complexes represented by the general formula: or salts thereof: [wherein R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group (with the proviso that R1 and R2 together with the adjacent phosphorus atom may form a 4- to 6-membered ring)], characterized by converting a compound represented by the general formula: in a solvent in the presence of a borane reagent: [wherein each symbol is as defined above].Type: ApplicationFiled: May 18, 2004Publication date: September 7, 2006Inventors: Mitsuhisa Yamano, Mitsutaka Goto, Masatoshi Yamada
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Publication number: 20060094887Abstract: A transition metal complex having 2,2?-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-1,1?-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of an asymmetric reaction system allows the preparation of an objective compound having an objective absolute configuration with improved efficiency.Type: ApplicationFiled: December 4, 2003Publication date: May 4, 2006Inventors: Mitsutaka Goto, Mitsuhisa Yamano, Shinji Kawaguchi
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Publication number: 20060079968Abstract: A mixer engine control program is executable by a computer for performing a method of displaying and editing a mixer configuration which specifies a mixing process of a signal processing apparatus. Logging on is made to the mixer engine control program with a user authority. Mixer configuration is read from a storage. The read mixer configuration is displayed and edited within a scope permitted by the user authority with which the mixer engine control program has been logged on. The edited mixer configuration is written back to the storage. The storage may store a protected mixer configuration created and supplied by a vendor, such that the mixer configuration created by the vendor is protected with a vendor authority higher than the user authority with which the user is able to log on the mixer engine control program.Type: ApplicationFiled: September 23, 2005Publication date: April 13, 2006Applicant: Yamaha CorporationInventors: Satoshi Takemura, Mitsutaka Goto
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Publication number: 20050200989Abstract: In a mixer system including an editing device that edits a configuration of signal processing by designating a combination of a plurality of components and a DSP that processes audio signals in accordance with the signal processing configuration edited by the editing device, when the mixer engine does not store a predetermined enabling key, audio signal processing including a protected component in the mixer engine is disabled, and when the mixer engine stores the predetermined enabling key, the audio signal processing is enabled. Further, the editing device is permitted to edit a signal processing configuration including the protected component irrespective of storage of the enabling key in the mixer engine.Type: ApplicationFiled: February 24, 2005Publication date: September 15, 2005Applicant: YAMAHA CORPORATIONInventors: Mitsutaka Goto, Satoshi Takemura, Makoto Hiroi, Masatoshi Hanashiro