Patents by Inventor Hirokazu Hirai

Hirokazu Hirai 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: 20240085066
    Abstract: A turbo-Brayton refrigeration machine (11) includes a first circulation path (L1) in which a first refrigerant circulates, a second circulation path (L2) in which a second refrigerant which is a cooling target circulates, a subcooler (22) disposed over the first circulation path (L1) and the second circulation path (L2) and configured to have a single heat-exchanging unit, and an expansion turbine (21) positioned on a primary side of the subcooler (22) in the first circulation path (L1), in which the pressure ratio of the expansion turbine (21) is the pressure ratio at which the outlet temperature of the expansion turbine (21) is higher than a freezing point of the second refrigerant.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 14, 2024
    Inventors: Shinsuke OZAKI, Hirokazu HIRAI, Masaki ISHII
  • Publication number: 20230399655
    Abstract: A promoter on an AAV vector was changed to an Iba1 promoter, and a configuration that combined a miR-9 complementary sequence (miR-9T) and a miR-129 complementary sequence (miR-129T) was adopted. An exogenous gene was clarified to be efficiently and specifically expressed in microglia by using this vector, resulting in that an AAV vector that could efficiently and specifically express an exogenous gene in microglia of the central nervous system, was found.
    Type: Application
    Filed: February 24, 2021
    Publication date: December 14, 2023
    Applicant: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Hirokazu HIRAI, Yukihiro OKADA
  • Patent number: 11572380
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: February 7, 2023
    Assignee: NIHON SHOKUHIN CO., LTD.
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada
  • Publication number: 20200318883
    Abstract: A rotary machine includes a rotary shaft with an axial disc; an axial magnetic bearing which supports the rotary shaft; a motor which rotates the rotary shaft; a turbine impeller mounted on one end portion of the rotary shaft; a compressor impeller mounted on the other end portion; a cooling gas flow passage where a cooling gas for cooling the motor flows; and a housing for at least the motor, the axial magnetic bearing, and the axial disc. The motor includes a rotor unit on the rotary shaft, and a stator unit facing the rotor unit, the axial disc is equipped with a pair of load receiving surfaces sandwiched between the axial magnetic bearings, and the cooling gas flow passage is equipped with a first flow passage between the rotor unit and the stator unit, and a second flow passage extending along at least one of the load receiving surface.
    Type: Application
    Filed: March 6, 2017
    Publication date: October 8, 2020
    Applicant: IHI Corporation
    Inventors: Masahiro NAKAJIMA, Seiichiro YOSHINAGA, Katsuya FUJISAKU, Kentarou ODA, Tsutomu IIDA, Kazuaki KURIHARA, Hirokazu HIRAI, Masaki HIROKAWA
  • Publication number: 20200123185
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: NIHON SHOKUHIN KAKO CO., LTD.
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada
  • Publication number: 20190143926
    Abstract: Vehicle management systems, methods and programs receive contact information indicating contact between an object and a vehicle. The contact information is detected by a sensor that detects contact between the object and the vehicle. The systems, methods, and programs obtain inspection information. The inspection information is a result of inspecting the vehicle for damage by a user of the vehicle who is notified of the contact between the object and the vehicle from having received the contact information. Inspection information transmission systems, methods, and programs, and information management systems, methods, and programs are also provided.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 16, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Yoichi YAMAMURA, Yuichi KURIWAKI, Hirokazu HIRAI
  • Patent number: 8912315
    Abstract: The present invention relates to a Purkinje cell-tropic viral vector in which a modified L7 promoter and a therapeutic gene are operably linked to a virus-based plasmid vector.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: December 16, 2014
    Assignee: Japan Science and Technology Agency
    Inventors: Hirokazu Hirai, Takashi Torashima
  • Publication number: 20130337109
    Abstract: An object of the present invention is to provide a method for producing a saccharide polycondensate which is inexpensive and is applicable to a food or beverage product. Disclosed is a method for producing a saccharide polycondensate, which comprises carrying out a saccharide polycondensation reaction in the presence of activated carbon.
    Type: Application
    Filed: December 13, 2011
    Publication date: December 19, 2013
    Inventors: Norihisa Hamaguchi, Hitoshi Takaguchi, Yoshinori Fujimoto, Yutaka Kimoto, Hirokazu Hirai, Masayasu Takada
  • Patent number: 8383230
    Abstract: An object of the present invention is to provide a flexible printed wiring board and multilayered flexible printed wiring board in which, in methods of laminating substrates comprising a non-adhering section and an adhering section, adhesion of the FPC substrates of the flexure part can be prevented and adequate flex resistance can be maintained. The present invention provides a flexible printed wiring board comprising at least an electric insulating layer and a conductor layer wherein the surface of the electric insulating layer has a 10-point average roughness of at least 1.5 ?m and less than 2.0 ?m and contact angle of at least 60° and less than 120°, or has a 10-point average roughness of at least 2.0 ?m and less than 4.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: February 26, 2013
    Assignee: Arisawa Mfg. Co., Ltd.
    Inventors: Kazuhide Kita, Hirokazu Hirai, Shuichi Fujita, Takashi Miwa
  • Publication number: 20100146649
    Abstract: The present invention relates to a Purkinje cell-tropic viral vector in which a modified L7 promoter and a therapeutic gene are operably linked to a virus-based plasmid vector.
    Type: Application
    Filed: March 7, 2007
    Publication date: June 10, 2010
    Inventors: Hirokazu Hirai, Takashi Torashima
  • Publication number: 20080289860
    Abstract: An object of the present invention is to provide a flexible printed wiring board and multilayered flexible printed wiring board in which, in methods of laminating substrates comprising a non-adhering section and an adhering section, adhesion of the FPC substrates of the flexure part can be prevented and adequate flex resistance can be maintained. The present invention provides a flexible printed wiring board comprising at least an electric insulating layer and a conductor layer wherein the surface of the electric insulating layer has a 10-point average roughness of at least 1.5 ?m and less than 2.0 ?m and contact angle of at least 60° and less than 120°, or has a 10-point average roughness of at least 2.0 ?m and less than 4.
    Type: Application
    Filed: May 24, 2007
    Publication date: November 27, 2008
    Applicant: Arisawa Mfg. Co., Ltd.
    Inventors: Kazuhide Kita, Hirokazu Hirai, Shuichi Fujita, Takashi Miwa