Patents by Inventor Shigenori Kuroda
Shigenori Kuroda 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: 11965256Abstract: The present invention provides an alkaline water electrolysis anode such that even when electric power having a large output fluctuation, such as renewable energy, is used as a power source, the electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a long period of time. The alkaline water electrolysis anode is an alkaline water electrolysis anode 10 provided with an electrically conductive substrate 2 at least a surface of which contains nickel or a nickel base alloy and a catalyst layer 6 disposed on the surface of the electrically conductive substrate 2, the catalyst layer 6 containing a nickel-containing metal oxide having a spinel structure, wherein the nickel-containing metal oxide contains nickel (Ni) and manganese (Mn), and has an atom ratio of Li/Ni/Mn/O of (0.0 to 0.8)/(0.4 to 0.6)/(1.0 to 1.8)/4.0.Type: GrantFiled: October 14, 2021Date of Patent: April 23, 2024Assignees: KYOTO UNIVERSITY, NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY, DE NORA PERMELEC LTDInventors: Yoshiharu Uchimoto, Tomoki Uchiyama, Shigenori Mitsushima, Yoshiyuki Kuroda, Kensaku Nagasawa, Yoshinori Nishiki, Awaludin Zaenal, Yun Bao
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Patent number: 6861933Abstract: A superconductive magnet device comprises a pair of oppositely disposed superconductive bodies in which annular superconductive coils are accommodated, and fine chip-shaped ferromagnetic shims disposed on a surface of the pair of superconductive magnet bodies so as to improve uniformity of magnetic field in a uniform magnetic field in a uniform magnetic field space generated in the proximity of the center between the superconductive magnet bodies, wherein ring-shaped ferromagnetic shims are disposed concentrically with the center of annular superconductive coils on the surface of the superconductive magnet bodies.Type: GrantFiled: September 2, 2003Date of Patent: March 1, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naoji Yoshida, Hajime Tanabe, Shigenori Kuroda
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Patent number: 6856223Abstract: An open-type magnet device for MRI includes a pair of upper and lower magnet assemblies, and shims are provided on opposite sides of their cooling containers and/or in holes passing through central portions of the cooling containers so as to facilitate providing a highly homogeneous static magnetic field.Type: GrantFiled: September 13, 2000Date of Patent: February 15, 2005Assignees: Hitachi Medical Corporation, Mitsubishi Denki Kabushiki KaishaInventors: Hirotaka Takeshima, Takao Honmei, Hiroshi Tazaki, Kazuki Moritsu, Shigenori Kuroda, Hajime Tanabe
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Patent number: 6847279Abstract: A superconductive magnet device comprises a pair of oppositely disposed superconductive bodies in which annular superconductive coils are accommodated, and fine chip-shaped ferromagnetic shims disposed on a surface of the pair of superconductive magnet bodies so as to improve uniformity of magnetic field in a uniform magnetic field space generated in the proximity of the center between the superconductive magnet bodies, wherein ring-shaped ferromagnetic shims are disposed concentrically with the center of annular superconductive coils on the surface of the superconductive magnet bodies.Type: GrantFiled: September 2, 2003Date of Patent: January 25, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naoji Yoshida, Hajime Tanabe, Shigenori Kuroda
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Patent number: 6781492Abstract: A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.Type: GrantFiled: July 10, 2002Date of Patent: August 24, 2004Assignees: Hitachi Medical Corporation, Mitsubishi Denki KKInventors: Hirotaka Takeshima, Takao Hommei, Hajime Kawano, Hiroshi Tazaki, Takeshi Yatsuo, Shigenori Kuroda, Hajime Tanabe
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Publication number: 20040051613Abstract: A superconductive magnet device comprises a pair of oppositely disposed superconductive bodies in which annular superconductive coils are accommodated, and fine chip-shaped ferromagnetic shims disposed on a surface of the pair of superconductive magnet bodies so as to improve uniformity of magnetic field in a uniform magnetic field space generated in the proximity of the center between the superconductive magnet bodies, wherein ring-shaped ferromagnetic shims are disposed concentrically with the center of annular superconductive coils on the surface of the superconductive magnet bodies.Type: ApplicationFiled: September 2, 2003Publication date: March 18, 2004Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Naoji Yoshida, Hajime Tanabe, Shigenori Kuroda
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Patent number: 6707359Abstract: A superconductive magnet device comprises a pair of oppositely disposed superconductive bodies in which annular superconductive coils are accommodated, and fine chip-shaped ferromagnetic shims disposed on a surface of the pair of superconductive magnet bodies so as to improve uniformity of magnetic field in a uniform magnetic field space generated in the proximity of the center between the superconductive magnet bodies, wherein ring-shaped ferromagnetic shims are disposed concentrically with the center of annular superconductive coils on the surface of the superconductive magnet bodies.Type: GrantFiled: April 12, 2002Date of Patent: March 16, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naoji Yoshida, Hajime Tanabe, Shigenori Kuroda
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Publication number: 20030011456Abstract: Uniformity of magnet field can be easily adjusted. A superconductive magnet device comprises a pair of oppositely disposed superconductive magnet bodies 27, 31 in which annular superconductive coils 26, 30 are accommodated, and fine chip-shaped ferromagnetic shims 51, 52 disposed on a surface of the pair of superconductive magnet bodies 27, 31, so as to improve uniformity of magnetic field in a uniform magnetic field space generated in the proximity of the center between the superconductive magnet bodies 27, 31 by the fine chip-shaped ferromagnetic shims 51, 52, wherein ring-shaped ferromagnetic shims 45˜50 are disposed concentrically with the center of the annular superconductive coils 26, 30 on the surface of the superconductive magnet bodies 27, 31.Type: ApplicationFiled: April 12, 2002Publication date: January 16, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Naoji Yoshida, Hajime Tanabe, Shigenori Kuroda
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Publication number: 20020180571Abstract: A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.Type: ApplicationFiled: July 10, 2002Publication date: December 5, 2002Inventors: Hirotaka Takeshima, Takao Hommei, Hajime Kawano, Hiroshi Tazaki, Takeshi Yatsuo, Shigenori Kuroda, Hajime Tanabe
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Patent number: 6437672Abstract: A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.Type: GrantFiled: June 29, 1998Date of Patent: August 20, 2002Assignees: Hitachi Medical Corporation, Mitsubishi Denki Kabushiki KaishaInventors: Hirotaka Takeshima, Takao Hommei, Hajime Kawano, Hiroshi Tazaki, Takeshi Yatsuo, Shigenori Kuroda, Hajime Tanabe
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Patent number: 4945446Abstract: A magnetic field compensating apparatus having a plurality of compensating units comprising a plurality of serial coils each of which is disposed concentrically along the main magnetic field and symmetrically with regard to a plane perpendicular to the main magnetic field and a plurality of power sources which separately supply currents to these compensating units, and made in such a manner that a plurality of error magnetic field components are generated by each of the compensating units, a compensating magnetic field is obtained by the whole of a plurality of the compensating units, and each of the currents supplied to the compensating units is decided in accordance with a constitution of a corresponding compensating unit.Type: GrantFiled: June 22, 1988Date of Patent: July 31, 1990Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shigenori Kuroda, Moriaki Takechi
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Patent number: 4800355Abstract: An electromagnet has a magnetic shield whose end plate is formed with an asymmetrical side hole 10 in addition to a center opening 6. The thickness of portion 11 of the end plate which covers an area defined by a deviation angle of not more than 180.degree. with a center line passing through a center of the side hole is made larger than the remaining portion of the end plate.Type: GrantFiled: May 12, 1988Date of Patent: January 24, 1989Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Moriaki Takechi, Tsugio Watanabe, Shigenori Kuroda