Patents by Inventor Masakazu Sugiyama

Masakazu Sugiyama 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: 20240360577
    Abstract: The present disclosure provides a cathode electrode in which selectivity of hydrogen decreases and selectivity of a carbon dioxide reduction product increases in a catalytic reaction producing carbon monoxide, an olefinic hydrocarbon such as ethylene, and an alcohol such as ethanol by a reduction reaction of carbon dioxide. A cathode electrode that electrically reduces carbon dioxide, including: a first layer containing cuprous oxide, copper, and at least one additional metal element selected from the group consisting of silver, gold, zinc, cadmium, and tin; and a second layer formed on the first layer and containing a constituent element composed of at least one metal element selected from the group consisting of copper, silver, gold, zinc, cadmium, and tin.
    Type: Application
    Filed: July 11, 2024
    Publication date: October 31, 2024
    Applicants: FURUKAWA ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO, CHIYODA CORPORATION
    Inventors: Takahiro YAMAMOTO, Yu MIMURA, Kiyoshi YAMAMOTO, Masakazu SUGIYAMA, Tsutomu MINEGISHI, Jun MATSUMOTO, Dai TAKEDA
  • Publication number: 20240344021
    Abstract: A composition for animal cell culture and techniques relating thereto are provided. A composition for animal cell culture, which contains an amino acid source and ?-ketoglutaric acid, and has the following properties: (A) the ?-ketoglutaric acid is a salt of ?-ketoglutaric acid; and/or (B) the amino acid source is free L-cysteine anhydrate is provided.
    Type: Application
    Filed: June 21, 2024
    Publication date: October 17, 2024
    Applicant: AJINOMOTO CO., INC.
    Inventors: Shinya Yamaide, Masashi Harada, Akari Tashiro, Chihiro Tsuji, Takuya Higuchi, Satoshi Okutani, Fumi Ogata, Shumpei Furomitsu, Masakazu Sugiyama
  • Patent number: 11133673
    Abstract: A direct current bus control system including a direct current bus connecting between an input power supply and a load, including a main stabilizing device including a first charge-&-discharge element and a first power converter, and at least one sub-stabilizing device including a second charge-&-discharge element, a charge element, or a discharge element, and including a second power converter, wherein the first power converter is configured to derive a bus voltage target value according to a power storage amount index of the first charge-&-discharge element, and to bidirectionally pass direct current power, so that the voltage of the direct current bus matches the bus voltage target value, and the second power converter is configured to derive a current target value, and to pass direct current power, so that a current equal to the current target value flows.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: September 28, 2021
    Assignee: RIKEN
    Inventors: Daiji Yamashita, Masakazu Sugiyama, Katsuhiko Tsuno, Kayo Koike, Katsushi Fujii, Satoshi Wada
  • Publication number: 20200280183
    Abstract: A direct current bus control system including a direct current bus connecting between an input power supply and a load, including a main stabilizing device including a first charge-&-discharge element and a first power converter, and at least one sub-stabilizing device including a second charge-&-discharge element, a charge element, or a discharge element, and including a second power converter, wherein the first power converter is configured to derive a bus voltage target value according to a power storage amount index of the first charge-&-discharge element, and to bidirectionally pass direct current power, so that the voltage of the direct current bus matches the bus voltage target value, and the second power converter is configured to derive a current target value, and to pass direct current power, so that a current equal to the current target value flows.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 3, 2020
    Applicant: RIKEN
    Inventors: Daiji YAMASHITA, Masakazu SUGIYAMA, Katsuhiko TSUNO, Kayo KOIKE, Katsushi FUJII, Satoshi WADA
  • Patent number: 10550484
    Abstract: The present invention provides a method of generating organic compounds and an organic-compound-generating system capable of efficiently generating organic-compounds even under a low-temperature environment by controlling a pH of an aqueous solution within a range from 5 to 10 during electrolysis in a case generating organic compounds by electrolyzing the aqueous solution containing carbon dioxide.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: February 4, 2020
    Assignees: CHIYODA CORPORATION, The University of Tokyo
    Inventors: Dai Takeda, Akihiro Mutou, Chikako Hashimoto, Jun Matsumoto, Katsushi Fujii, Masakazu Sugiyama
  • Patent number: 10270045
    Abstract: A semiconductor light-emitting element including a first semiconductor layer of a first conductivity type; a first light-emitting layer; a second light-emitting layer; and a second semiconductor layer of a conductivity type opposite to the conductivity type of the first semiconductor layer. The first light-emitting layer has a base layer with composition subject to stress strain from the first semiconductor layer and has a plurality of base segments partitioned into a random net shape; and a first quantum well structure layer composed of at least one quantum well layer and at least one barrier layer. The second light-emitting layer has a second quantum well structure layer composed of a plurality of barrier layers that have different compositions from that of the at least one barrier layer of the first quantum well structure layer, and at least one quantum well layer.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 23, 2019
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Takako Fujiwara, Masakazu Sugiyama, Mathew Manish
  • Patent number: 10193021
    Abstract: A light-emitting layer includes: a base layer with a plurality of base segments that have a composition subject to stress strain from a first semiconductor layer and are formed in a random net shape; and a quantum well structure layer including at least one quantum well layer and at least one barrier layer that are formed on the base layer. The base layer includes: a first sub-base layer; a trench that partitions the first sub-base layer for each of the plurality of base segments; and a second sub-base layer formed to bury the first sub-base layer.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 29, 2019
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki Togawa, Masakazu Sugiyama
  • Patent number: 10186671
    Abstract: A semiconductor light-emitting element including a first semiconductor layer of a first conductivity type; a light-emitting functional layer that includes first and second light-emitting layers; and a second semiconductor layer of a conductivity type opposite to the conductivity type of the first semiconductor layer. The first light-emitting layer has a first base layer with a composition subject to stress strain from the first semiconductor layer; a first quantum well layer that retains a segment shape of the first base segment; and a first barrier layer that has a flat surface flattened by embedding the first base layer and the first quantum well layer. The second light-emitting layer has a second base layer that has a composition subject to stress strain from the first barrier layer; a second quantum well layer that retains a segment shape of the second base segment; and a second barrier layer.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 22, 2019
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Meiki Goto, Masakazu Sugiyama, Mathew Manish
  • Patent number: 10077447
    Abstract: The present invention provides a coryneform bacterium having an ability to produce a heterologous fusion protein by secretory production, which has been modified to express a genetic construct for secretory production of the heterologous fusion protein encoding at least a heterologous fusion protein comprising an extein and an intein having an activity of acyl rearrangement. The method for producing proteins modified at the C-terminus is also provided.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 18, 2018
    Assignee: AJINOMOTO CO., INC.
    Inventors: Sergey Vasilievich Smirnov, Veronika Aleksandrovna Kotliarova, Hidemi Fujii, Masakazu Sugiyama
  • Patent number: 10062805
    Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductivity type; a light-emitting functional layer that includes a light-emitting layer; and a second semiconductor layer that is formed on the light-emitting functional layer and is of a conductivity type opposite to a conductivity type of the first semiconductor layer. The light-emitting layer includes a base layer which has a composition subject to stress strain from the first semiconductor layer and has a plurality of base segments that are partitioned in a random net shape; and a quantum well structure layer composed of at least one quantum well layer and at least one barrier layer. The base layer has a composition of AlxGa1?xN (0?x?1), and the barrier layer has a composition of AlyGa1?yN (0?y<1), and the composition x and the composition y satisfy a relation of x>y.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: August 28, 2018
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yusaku Fujii, Masakazu Sugiyama, Mathew Manish
  • Patent number: 10056524
    Abstract: A semiconductor light-emitting element includes: a first semiconductor layer of a first conductivity type; a light-emitting functional layer including a light emitting layer formed on the first semiconductor layer; and a second semiconductor layer that is formed on the light-emitting functional layer and of a conductivity type opposite to the conductivity type of the first semiconductor layer. The light-emitting layer has: a base layer that has a composition subject to stress strain from the first semiconductor layer and a plurality of base segments formed in a random net shape; and a quantum well structure layer formed by embedding the base layer and composed of at least one quantum well layer and at least one barrier layer. The base layer has a plurality of sub-base layers composed of AlGaN with different Al compositions.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: August 21, 2018
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki Togawa, Masakazu Sugiyama, Mathew Manish
  • Patent number: 10053491
    Abstract: An object of the present invention is to provide a method for producing a peptide thioester compound, a peptide hydrazide compound, and a peptide amide compound. The present invention provides a method for producing a peptide hydrazide compound or a peptide amide compound by using a compound represented by Formula (2): wherein R1, R2, R3, and X are as defined in the specification, and using a hydrazine compound or an ammonia compound as a reaction reagent. The present invention also provides a method for producing a peptide thioester compound from the peptide hydrazide compound.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: August 21, 2018
    Assignee: AJINOMOTO CO., INC.
    Inventors: Akira Otaka, Akira Shigenaga, Masakazu Sugiyama, Hidemi Fujii
  • Patent number: 9991420
    Abstract: A semiconductor light-emitting element according to the present invention is a semiconductor light-emitting element including: a first semiconductor layer of a first conductivity type; a light-emitting functional layer formed on the first semiconductor layer; and a second semiconductor layer that is formed on the light-emitting functional layer and is of a second conductivity type opposite to that of the first semiconductor layer. The light-emitting functional layer has: a base layer formed on the first semiconductor layer, the base layer having a plurality of base segments that have a composition subject to stress strain from the first semiconductor layer and are formed in a random net shape, the base layer being doped with a dopant of the second conductivity type; and a quantum well light-emitting layer formed on the base layer.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: June 5, 2018
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Takako Fujiwara, Masakazu Sugiyama
  • Patent number: 9978906
    Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductivity type; a light-emitting functional layer that includes a light-emitting layer; and a second semiconductor layer that is formed on the light-emitting functional layer and is of a conductivity type opposite to a conductivity type of the first semiconductor layer. The light-emitting layer includes a base layer which has a composition subject to stress strain from the first semiconductor layer and has a plurality of base segments that are partitioned in a random net shape; and a quantum well structure layer composed of at least one quantum well layer and at least one barrier layer. The base layer has a composition of AlxGa1?xN (0?x?1), and the barrier layer has a composition of AlyGa1?yN (0?y<1), and the composition x and the composition y satisfy a relation of x>y.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: May 22, 2018
    Assignees: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yusaku Fujii, Masakazu Sugiyama, Mathew Manish
  • Publication number: 20180062037
    Abstract: A light-emitting layer includes: a base layer with a plurality of base segments that have a composition subject to stress strain from a first semiconductor layer and are formed in a random net shape; and a quantum well structure layer including at least one quantum well layer and at least one barrier layer that are formed on the base layer. The base layer includes: a first sub-base layer; a trench that partitions the first sub-base layer for each of the plurality of base segments; and a second sub-base layer formed to bury the first sub-base layer.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 1, 2018
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki TOGAWA, Masakazu SUGIYAMA
  • Publication number: 20180062038
    Abstract: A semiconductor light-emitting element according to the present invention is a semiconductor light-emitting element including: a first semiconductor layer of a first conductivity type; a light-emitting functional layer formed on the first semiconductor layer; and a second semiconductor layer that is formed on the light-emitting functional layer and is of a second conductivity type opposite to that of the first semiconductor layer. The light-emitting functional layer has: a base layer formed on the first semiconductor layer, the base layer having a plurality of base segments that have a composition subject to stress strain from the first semiconductor layer and are formed in a random net shape, the base layer being doped with a dopant of the second conductivity type; and a quantum well light-emitting layer formed on the base layer.
    Type: Application
    Filed: March 22, 2016
    Publication date: March 1, 2018
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Takako FUJIWARA, Masakazu SUGIYAMA
  • Publication number: 20180033911
    Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductivity type; a light-emitting functional layer that includes a light-emitting layer; and a second semiconductor layer that is formed on the light-emitting functional layer and is of a conductivity type opposite to a conductivity type of the first semiconductor layer. The light-emitting layer includes a base layer which has a composition subject to stress strain from the first semiconductor layer and has a plurality of base segments that are partitioned in a random net shape; and a quantum well structure layer composed of at least one quantum well layer and at least one barrier layer. The base layer has a composition of AlxGa1-xN (0?x?1), and the barrier layer has a composition of AlyGa1-yN (0?y<1), and the composition x and the composition y satisfy a relation of x>y.
    Type: Application
    Filed: October 22, 2015
    Publication date: February 1, 2018
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Yusaku FUJII, Masakazu SUGIYAMA, Mathew MANISH
  • Publication number: 20170324048
    Abstract: A semiconductor light-emitting element including a first semiconductor layer of a first conductivity type; a light-emitting functional layer that includes first and second light-emitting layers; and a second semiconductor layer of a conductivity type opposite to the conductivity type of the first semiconductor layer. The first light-emitting layer has a first base layer with a composition subject to stress strain from the first semiconductor layer; a first quantum well layer that retains a segment shape of the first base segment; and a first barrier layer that has a flat surface flattened by embedding the first base layer and the first quantum well layer. The second light-emitting layer has a second base layer that has a composition subject to stress strain from the first barrier layer; a second quantum well layer that retains a segment shape of the second base segment; and a second barrier layer.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 9, 2017
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Meiki GOTO, Masakazu SUGIYAMA, Mathew MANISH
  • Publication number: 20170324047
    Abstract: A semiconductor light-emitting element including a first semiconductor layer of a first conductivity type; a first light-emitting layer; a second light-emitting layer; and a second semiconductor layer of a conductivity type opposite to the conductivity type of the first semiconductor layer. The first light-emitting layer has a base layer with composition subject to stress strain from the first semiconductor layer and has a plurality of base segments partitioned into a random net shape; and a first quantum well structure layer composed of at least one quantum well layer and at least one barrier layer. The second light-emitting layer has a second quantum well structure layer composed of a plurality of barrier layers that have different compositions from that of the at least one barrier layer of the first quantum well structure layer, and at least one quantum well layer.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 9, 2017
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Takako FUJIWARA, Masakazu SUGIYAMA, Mathew MANISH
  • Publication number: 20170317232
    Abstract: A semiconductor light-emitting element includes: a first semiconductor layer of a first conductivity type; a light-emitting functional layer including a light emitting layer formed on the first semiconductor layer; and a second semiconductor layer that is formed on the light-emitting functional layer and of a conductivity type opposite to the conductivity type of the first semiconductor layer. The light-emitting layer has: a base layer that has a composition subject to stress strain from the first semiconductor layer and a plurality of base segments formed in a random net shape; and a quantum well structure layer formed by embedding the base layer and composed of at least one quantum well layer and at least one barrier layer. The base layer has a plurality of sub-base layers composed of AlGaN with different Al compositions.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 2, 2017
    Applicants: STANLEY ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki TOGAWA, Masakazu SUGIYAMA, Mathew MANISH