Patents by Inventor Masahiro Yuki
Masahiro Yuki 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: 12194154Abstract: A method for producing a capsule, including cooling a suspension so as to gel a thermoresponsive polymer including a core 8 formed from a gel of an ionically-bonded polymer and form a shell (17) of a hydrogel, the suspension being obtained by suspending, in oil (10), a sol (9) of the thermoresponsive polymer, and then using a chelating agent to solate the core so as to hollow out the inside.Type: GrantFiled: March 12, 2020Date of Patent: January 14, 2025Assignee: RIKENInventors: Hiroyoshi Aoki, Yutaka Yamagata, Moriya Ohkuma, Masahiro Yuki
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Publication number: 20220168227Abstract: A method for producing a capsule, including cooling a suspension so as to gel a thermoresponsive polymer including a core 8 formed from a gel of an ionically-bonded polymer and form a shell (17) of a hydrogel, the suspension being obtained by suspending, in oil (10), a sol (9) of the thermoresponsive polymer, and then using a chelating agent to solate the core so as to hollow out the inside.Type: ApplicationFiled: March 12, 2020Publication date: June 2, 2022Inventors: Hiroyoshi AOKI, Yutaka YAMAGATA, Moriya OHKUMA, Masahiro YUKI
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Patent number: 11228822Abstract: A transmission device, includes a first wavelength converter configured to convert a second wavelength-multiplexed signal in a first wavelength band to a second wavelength band different from the first wavelength band, and a multiplexer configured to transmit, after the conversion, a wavelength-multiplexed signal obtained through multiplexing of a first wavelength-multiplexed signal in the first wavelength band, a first supervisory control signal light ray that is a control signal for the first wavelength-multiplexed signal, the second wavelength-multiplexed signal in the second wavelength band, and a second supervisory control signal light ray that is a control signal for the second wavelength-multiplexed signal, wherein the first supervisory control signal light ray and the second supervisory control signal light ray each have a wavelength in a wavelength band different from the first wavelength band and the second wavelength band.Type: GrantFiled: December 22, 2020Date of Patent: January 18, 2022Assignee: FUJITSU LIMITEDInventors: Masahiro Yuki, Shingo Hara, Takeshi Sakamoto
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Patent number: 11184102Abstract: An apparatus that adds and drops wavelength division multiplexed signal, the apparatus includes a memory and processor. The memory configured to store a first correspondence table indicating relationship with between an optical circuit type information and a first output level target value for a dropping circuit. The processor configured to determine an output level target value for the dropping circuit for each signal wavelength, based on the first correspondence table and optical circuit type information of each signal wavelength.Type: GrantFiled: December 21, 2020Date of Patent: November 23, 2021Assignee: FUJITSU LIMITEDInventor: Masahiro Yuki
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Patent number: 11162087Abstract: The object of the present invention is to separate and provide a ?-glucosidase gene having the effect of efficiently promoting saccharification in hydrolysis of cellulose-containing biomass from a hardly culturable symbiotic protist community of Coptotermes formosanus, and the present invention specifically relates to ?-glucosidase derived from a protist of the genus Pseudotrichonympha consisting of the amino acid sequence represented by SEQ ID NO: 1.Type: GrantFiled: August 29, 2018Date of Patent: November 2, 2021Assignees: RIKEN, TORAY INDUSTRIES, INC.Inventors: Masato Otagiri, Shigeharu Moriya, Masahiro Yuki, Moriya Ohkuma, Haruka Saito, Shingo Hiramatsu, Chiaki Yamada, Katsushige Yamada
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Publication number: 20210242956Abstract: An apparatus that adds and drops wavelength division multiplexed signal, the apparatus includes a memory and processor. The memory configured to store a first correspondence table indicating relationship with between an optical circuit type information and a first output level target value for a dropping circuit. The processor configured to determine an output level target value for the dropping circuit for each signal wavelength, based on the first correspondence table and optical circuit type information of each signal wavelength.Type: ApplicationFiled: December 21, 2020Publication date: August 5, 2021Applicant: FUJITSU LIMITEDInventor: Masahiro YUKI
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Publication number: 20210112320Abstract: A transmission device, includes a first wavelength converter configured to convert a second wavelength-multiplexed signal in a first wavelength band to a second wavelength band different from the first wavelength band, and a multiplexer configured to transmit, after the conversion, a wavelength-multiplexed signal obtained through multiplexing of a first wavelength-multiplexed signal in the first wavelength band, a first supervisory control signal light ray that is a control signal for the first wavelength-multiplexed signal, the second wavelength-multiplexed signal in the second wavelength band, and a second supervisory control signal light ray that is a control signal for the second wavelength-multiplexed signal, wherein the first supervisory control signal light ray and the second supervisory control signal light ray each have a wavelength in a wavelength band different from the first wavelength band and the second wavelength band.Type: ApplicationFiled: December 22, 2020Publication date: April 15, 2021Applicant: FUJITSU LIMITEDInventors: Masahiro YUKI, Shingo Hara, TAKESHI SAKAMOTO
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Publication number: 20210079435Abstract: The object of the present invention is to separate and provide a ?-glucosidase gene having the effect of efficiently promoting saccharification in hydrolysis of cellulose-containing biomass from a hardly culturable symbiotic protist community of Coptotermes formosanus, and the present invention specifically relates to ?-glucosidase derived from a protist of the genus Pseudotrichonympha consisting of the amino acid sequence represented by SEQ ID NO: 1.Type: ApplicationFiled: August 29, 2018Publication date: March 18, 2021Applicants: RIKEN, TORAY INDUSTRIES, INC.Inventors: Masato OTAGIRI, Shigeharu MORIYA, Masahiro YUKI, Moriya OHKUMA, Haruka SAITO, Shingo HIRAMATSU, Chiaki YAMADA, Katsushige YAMADA
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Patent number: 10904648Abstract: A transmission device, includes a first wavelength converter configured to convert a second wavelength-multiplexed signal in a first wavelength band to a second wavelength band different from the first wavelength band, and a multiplexer configured to transmit, after the conversion, a wavelength-multiplexed signal obtained through multiplexing of a first wavelength-multiplexed signal in the first wavelength band, a first supervisory control signal light ray that is a control signal for the first wavelength-multiplexed signal, the second wavelength-multiplexed signal in the second wavelength band, and a second supervisory control signal light ray that is a control signal for the second wavelength-multiplexed signal, wherein the first supervisory control signal light ray and the second supervisory control signal light ray each have a wavelength in a wavelength band different from the first wavelength band and the second wavelength band.Type: GrantFiled: November 19, 2019Date of Patent: January 26, 2021Assignee: FUJITSU LIMITEDInventors: Masahiro Yuki, Shingo Hara, Takeshi Sakamoto
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Patent number: 10855393Abstract: A transmitting device, includes inputting a multiplex light multiplexed a first wavelength-multiplexed signal light stream in a first wavelength band and a second wavelength-multiplexed signal light stream in a second wavelength band; inputting a multiplex light multiplexed a third wavelength-multiplexed signal light stream in a first wavelength band and a fourth wavelength-multiplexed signal light stream in a second wavelength band; converting the first wavelength-multiplexed signal light stream to the second wavelength band; converting the third wavelength-multiplexed signal light stream to the second wavelength band; generating a first output signal light multiplexed by signal light in a first wavelength band among the multi-wavelength light so that wavelengths do not overlap; generating a second output signal light multiplexed by signal light in a second wavelength band among the multi-wavelength light so that wavelengths do not overlap; converting the first output signal light to the first wavelength banType: GrantFiled: February 4, 2020Date of Patent: December 1, 2020Assignee: FUJITSU LIMITEDInventor: Masahiro Yuki
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Publication number: 20200274633Abstract: A transmitting device, includes inputting a multiplex light multiplexed a first wavelength-multiplexed signal light stream in a first wavelength band and a second wavelength-multiplexed signal light stream in a second wavelength band; inputting a multiplex light multiplexed a third wavelength-multiplexed signal light stream in a first wavelength band and a fourth wavelength-multiplexed signal light stream in a second wavelength band; converting the first wavelength-multiplexed signal light stream to the second wavelength band; converting the third wavelength-multiplexed signal light stream to the second wavelength band; generating a first output signal light multiplexed by signal light in a first wavelength band among the multi-wavelength light so that wavelengths do not overlap; generating a second output signal light multiplexed by signal light in a second wavelength band among the multi-wavelength light so that wavelengths do not overlap; converting the first output signal light to the first wavelength banType: ApplicationFiled: February 4, 2020Publication date: August 27, 2020Applicant: FUJITSU LIMITEDInventor: Masahiro YUKI
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Publication number: 20200169795Abstract: A transmission device, includes a first wavelength converter configured to convert a second wavelength-multiplexed signal in a first wavelength band to a second wavelength band different from the first wavelength band, and a multiplexer configured to transmit, after the conversion, a wavelength-multiplexed signal obtained through multiplexing of a first wavelength-multiplexed signal in the first wavelength band, a first supervisory control signal light ray that is a control signal for the first wavelength-multiplexed signal, the second wavelength-multiplexed signal in the second wavelength band, and a second supervisory control signal light ray that is a control signal for the second wavelength-multiplexed signal, wherein the first supervisory control signal light ray and the second supervisory control signal light ray each have a wavelength in a wavelength band different from the first wavelength band and the second wavelength band.Type: ApplicationFiled: November 19, 2019Publication date: May 28, 2020Applicant: FUJITSU LIMITEDInventors: Masahiro YUKI, Shingo Hara, Takeshi SAKAMOTO
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Patent number: 10644823Abstract: An optical transfer method of an optical transfer system including a transmitter, a first wavelength converter configured to use first excitation light to perform wavelength-conversion of first signal light which is the transmission light into second signal light in a different wavelength band, a second wavelength converter configured to use second excitation light to perform wavelength-conversion of the second signal light into third signal light in a different wavelength band, and a receiver configured to receive the third signal light, the method includes acquiring a wavelength of the transmission light, a wavelength of the first excitation light, and a wavelength of the second excitation light; and deciding local emission light of the receiver based on a wavelength of reception light of the receiver obtained from the wavelength of the transmission light, the wavelength of the first excitation light, and the wavelength of the second excitation light.Type: GrantFiled: June 10, 2019Date of Patent: May 5, 2020Assignee: FUJITSU LIMITEDInventors: Masahiro Yuki, Tomoaki Takeyama, Kazuo Takatsu
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Patent number: 10530474Abstract: An optical transmission device includes an optical amplifier that optically amplifies a wavelength multiplexing signal which is input, a wavelength selective switch that splits, inserts, or transmits an optical signal of any wavelength of the wavelength multiplexing signal, an optical channel power monitor that detects power of each channel of the wavelength multiplexing signal which is input and the wavelength multiplexing signal which is output, and a controller that calculates an amount of change in the optical signal of each channel in which a gain of each channel between an input and an output to and from the device is steady, and adjusts an amount of attenuation of the wavelength selective switch, based on the power of each channel of the wavelength multiplexing signal that is detected by the optical channel power monitor.Type: GrantFiled: October 9, 2018Date of Patent: January 7, 2020Assignee: FUJITSU LIMITEDInventor: Masahiro Yuki
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Publication number: 20190386767Abstract: An optical transfer method of an optical transfer system including a transmitter, a first wavelength converter configured to use first excitation light to perform wavelength-conversion of first signal light which is the transmission light into second signal light in a different wavelength band, a second wavelength converter configured to use second excitation light to perform wavelength-conversion of the second signal light into third signal light in a different wavelength band, and a receiver configured to receive the third signal light, the method includes acquiring a wavelength of the transmission light, a wavelength of the first excitation light, and a wavelength of the second excitation light; and deciding local emission light of the receiver based on a wavelength of reception light of the receiver obtained from the wavelength of the transmission light, the wavelength of the first excitation light, and the wavelength of the second excitation light.Type: ApplicationFiled: June 10, 2019Publication date: December 19, 2019Applicant: FUJITSU LIMITEDInventors: Masahiro YUKI, Tomoaki Takeyama, Kazuo Takatsu
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Patent number: 10461879Abstract: An optical transmission device includes: a first optical amplifier, a WSS (wavelength selective switch), a second optical amplifier and a controller. The first optical amplifier amplifies a received WDM (wavelength division multiplexed) optical signal. The WSS controls optical powers of respective channels multiplexed in the WDM optical signal that is amplified by the first optical amplifier. The second optical amplifier amplifies the WDM optical signal output from the WSS. The controller controls a gain of the first optical amplifier based on initial setting information. The controller corrects the gain of the first optical amplifier such that an average optical power of a plurality of channels multiplexed in the WDM optical signal that is amplified by the first optical amplifier approaches a target level after a specified period of time has elapsed from when the gain of the first optical amplifier is controlled based on the initial setting information.Type: GrantFiled: December 22, 2017Date of Patent: October 29, 2019Assignee: FUJITSU LIMITEDInventors: Masahiro Yuki, Atsushi Kiyama
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Publication number: 20190115977Abstract: An optical transmission device includes an optical amplifier that optically amplifies a wavelength multiplexing signal which is input, a wavelength selective switch that splits, inserts, or transmits an optical signal of any wavelength of the wavelength multiplexing signal, an optical channel power monitor that detects power of each channel of the wavelength multiplexing signal which is input and the wavelength multiplexing signal which is output, and a controller that calculates an amount of change in the optical signal of each channel in which a gain of each channel between an input and an output to and from the device is steady, and adjusts an amount of attenuation of the wavelength selective switch, based on the power of each channel of the wavelength multiplexing signal that is detected by the optical channel power monitor.Type: ApplicationFiled: October 9, 2018Publication date: April 18, 2019Applicant: FUJITSU LIMITEDInventor: Masahiro YUKI
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Publication number: 20180291067Abstract: The present invention relates to developing and providing a technique for saccharifying a plant biomass, particularly a lignocellulosic biomass efficiently in fewer steps and at low cost while suppressing environmental load, in order to efficiently and effectively use the energy of the plant biomass. Provided are a cellulase activator containing a lignocellulose degradation cofactor consisting of an amino acid sequence represented by SEQ ID NO: 1 as an active ingredient and a method for saccharifying a lignocellulosic biomass using the cellulase activator.Type: ApplicationFiled: November 10, 2015Publication date: October 11, 2018Applicant: RikenInventors: Shigeharu Moriya, Masato Otagiri, Masahiro Yuki, Moriya Ohkuma, Shotaro Kishikawa
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Publication number: 20180205485Abstract: An optical transmission device includes: a first optical amplifier, a WSS (wavelength selective switch), a second optical amplifier and a controller. The first optical amplifier amplifies a received WDM (wavelength division multiplexed) optical signal. The WSS controls optical powers of respective channels multiplexed in the WDM optical signal that is amplified by the first optical amplifier. The second optical amplifier amplifies the WDM optical signal output from the WSS. The controller controls a gain of the first optical amplifier based on initial setting information. The controller corrects the gain of the first optical amplifier such that an average optical power of a plurality of channels multiplexed in the WDM optical signal that is amplified by the first optical amplifier approaches a target level after a specified period of time has elapsed from when the gain of the first optical amplifier is controlled based on the initial setting information.Type: ApplicationFiled: December 22, 2017Publication date: July 19, 2018Applicant: FUJITSU LIMITEDInventors: Masahiro YUKI, Atsushi Kiyama
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Patent number: 9900089Abstract: An optical transmission device that transmits an optical signal in a specified wavelength band includes: a receiver, a monitor light unit, a wavelength selective switch and a memory. The receiver receives the optical signal. The monitor light unit outputs monitor light of a wavelength allocated outside of the specified wavelength band. The wavelength selective switch outputs the optical signal via a first port and outputs the monitor light via a second port. The memory stores information that indicates an optical power loss of a route through which the monitor light is transmitted.Type: GrantFiled: January 18, 2017Date of Patent: February 20, 2018Assignee: FUJITSU LIMITEDInventors: Masahiro Yuki, Yoshinobu Matsukawa, Atsushi Kiyama