Patents by Inventor Shigekazu Kawai

Shigekazu Kawai 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: 20240074417
    Abstract: Provided is a breeding apparatus that can facilitate disposition and collection of a spawning bed. A breeding apparatus includes a breeding area forming member that forms breeding areas for organisms and is open at least at the bottoms of the breeding areas, and a spawning bed sheet that forms the bottom surfaces of the breeding areas, has a belt shape, and is provided so as to be movable in a longitudinal direction of the belt shape relative to the breeding area forming member.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 7, 2024
    Applicants: JTEKT CORPORATION, Tokushima University
    Inventors: Nozomu MIURA, Yasuhiro MURATA, Shigekazu KAWAI, Takahito WATANABE, Taro MITO
  • Publication number: 20240000053
    Abstract: There is provided a rearing apparatus including a hatching area that holds eggs of organisms to be reared and accommodates the organisms hatched from the eggs, and a rearing area that is defined in an area larger than the hatching area at a position different from the hatching area and in which the organisms are reared. The present disclosure provides a rearing apparatus that can implement high-density and large-scale rearing by effectively utilizing areas.
    Type: Application
    Filed: November 2, 2021
    Publication date: January 4, 2024
    Applicants: JTEKT CORPORATION, Tokushima University
    Inventors: Yasuhiro MURATA, Akihiro TAKAZATO, Shigekazu KAWAI, Nozomu MIURA, Takahito WATANABE, Taro MITO
  • Publication number: 20230095722
    Abstract: There is provided a rearing apparatus for rearing an organism includes: a box-shaped rearing case; at least one perching member that is held in the rearing case and that is capable of perching the organism; and a separating member that is provided in the rearing case and that is movable along the perching member. The separating member is configured to separate the organism perched at the perching member from the perching member by the separating member moving along the perching member.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 30, 2023
    Applicants: JTEKT CORPORATION, Gryllus Inc.
    Inventors: Shigekazu KAWAI, Yasuhiro MURATA, Takashi MATSUMOTO, Takahito WATANABE, Taro MITO
  • Patent number: 7782049
    Abstract: A magnetic device comprises a magnetic element, a first magnetic field application device, and a second magnetic field application device. The first and second magnetic field applying means are disposed on mutually opposite sides of the magnetic element. The magnetic element is, for example, an element in which a soft magnetic film is formed in a meandering shape on a nonmagnetic substrate. The first and second magnetic field application device create a magnetic field in one direction from the first magnetic field application device toward the second magnetic field application device. The bias magnetic field in one direction is thereby applied to the entire soft magnetic film in the magnetic element disposed between the first and second magnetic field application device.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: August 24, 2010
    Assignee: Fujikura Ltd.
    Inventors: Kazuhisa Itoi, Katsubumi Nagasu, Takuya Aizawa, Osamu Nakao, Shigekazu Kawai
  • Patent number: 7772841
    Abstract: A magnetic device comprises a magnetic element, a first magnetic field applying means, and a second magnetic field applying means. The first and second magnetic field applying means are disposed on mutually opposite sides of the magnetic element. The magnetic element is, for example, an element in which a soft magnetic film is formed in a meandering shape on a nonmagnetic substrate. The first and second magnetic field applying means create a magnetic field in one direction from the first magnetic field applying means toward the second magnetic field applying means. The bias magnetic field in one direction is thereby applied to the entire soft magnetic film in the magnetic element disposed between the first and second magnetic field applying means.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: August 10, 2010
    Assignee: Fujikura Ltd.
    Inventors: Kazuhisa Itoi, Katsubumi Nagasu, Takuya Aizawa, Osamu Nakao, Shigekazu Kawai
  • Publication number: 20100109663
    Abstract: A magnetic device comprises a magnetic element, a first magnetic field applying means, and a second magnetic field applying means. The first and second magnetic field applying means are disposed on mutually opposite sides of the magnetic element. The magnetic element is, for example, an element in which a soft magnetic film is formed in a meandering shape on a nonmagnetic substrate. The first and second magnetic field applying means create a magnetic field in one direction from the first magnetic field applying means toward the second magnetic field applying means. The bias magnetic field in one direction is thereby applied to the entire soft magnetic film in the magnetic element disposed between the first and second magnetic field applying means.
    Type: Application
    Filed: January 13, 2010
    Publication date: May 6, 2010
    Applicant: Fujikura Ltd.
    Inventors: Kazuhisa ITOI, Katsubumi Nagasu, Takuya Aizawa, Osamu Nakao, Shigekazu Kawai
  • Patent number: 7628938
    Abstract: The present invention provides a photochromic compound that is colored when irradiated with visible light and quickly faded when set in a dark place. The photochromic compound according to the present invention is expressed by the following general formula (I): where each of A1, A2 and A3 is a five-member rings forming a 6?-electron system, the three rings being identical, partially identical or totally different from each other, and each ring may have a substituent; B1 and B2 are functional groups, each having an atomic number of five or larger, including a ring compound, and bonded to the 2-carbon of each of A2 and A3, respectively; and R1, R2 and R3 are substituents identical to or different from each other. This compound is highly colorable and durable even when it is dispersed into plastic macromolecular materials. Therefore, it is suitable as a dye material for sunglasses or similar products.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: December 8, 2009
    Assignee: National University Corporation Nara Institute of Science and Technology
    Inventors: Tsuyoshi Kawai, Takuya Nakajima, Shigekazu Kawai
  • Publication number: 20090066326
    Abstract: A magnetic device comprises a magnetic element, a first magnetic field applying means, and a second magnetic field applying means. The first and second magnetic field applying means are disposed on mutually opposite sides of the magnetic element. The magnetic element is, for example, an element in which a soft magnetic film is formed in a meandering shape on a nonmagnetic substrate. The first and second magnetic field applying means create a magnetic field in one direction from the first magnetic field applying means toward the second magnetic field applying means. The bias magnetic field in one direction is thereby applied to the entire soft magnetic film in the magnetic element disposed between the first and second magnetic field applying means.
    Type: Application
    Filed: November 7, 2008
    Publication date: March 12, 2009
    Applicant: Fujikura Ltd.
    Inventors: Kazuhisa ITOI, Katsubumi Nagasu, Takuya Aizawa, Osamu Nakao, Shigekazu Kawai
  • Publication number: 20080006797
    Abstract: The present invention provides a photochromic compound that is colored when irradiated with visible light and quickly faded when set in a dark place. The photochromic compound according to the present invention is expressed by the following general formula (I): where each of A1, A2 and A3 is a five-member rings forming a 6?-electron system, the three rings being identical, partially identical or totally different from each other, and each ring may have a substituent; B1 and B2 are functional groups, each having an atomic number of five or larger, including a ring compound, and bonded to the 2-carbon of each of A2 and A3, respectively; and R1, R2 and R3 are substituents identical to or different from each other. This compound is highly colorable and durable even when it is dispersed into plastic macromolecular materials. Therefore, it is suitable as a dye material for sunglasses or similar products.
    Type: Application
    Filed: March 21, 2007
    Publication date: January 10, 2008
    Applicant: NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Tsuyoshi Kawai, Takuya Nakajima, Shigekazu Kawai
  • Patent number: 6903702
    Abstract: An antenna is provided as a substrate member, and, as with the antenna, a ground part is provided as a substrate member. The ground part includes a folded pattern formed of a copper foil provided on the surface of a substrate material. When a folded pattern in the antenna and the folded pattern in the ground part are configured in a length of ?/4, a pseudo-antenna having a length of ?/2 can be formed. In this case, the antenna gain is about 2 dB, that is, the radiation of the radio wave can be improved. At the same time, the antinoise properties and the arrival distance of the radio wave can be improved. That is, the above construction can realize radio equipment which can stably radiate radio waves even under ungroundable conditions and, at the same time, can realize good characteristics even under low transmission output conditions.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: June 7, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shigekazu Kawai, Tsutomu Ishikura, Yutaka Saito, Tsutomu Tanaka, Kazuo Matsubara
  • Publication number: 20030169211
    Abstract: An antenna is provided as a substrate member, and, as with the antenna, a ground part is provided as a substrate member. The ground part includes a folded pattern formed of a copper foil provided on the surface of a substrate material. When a folded pattern in the antenna and the folded pattern in the ground part are configured in a length of &lgr;/4, a pseudo-antenna having a length of &lgr;/2 can be formed. In this case, the antenna gain is about 2 dB, that is, the radiation of the radio wave can be improved. At the same time, the antinoise properties and the arrival distance of the radio wave can be improved. That is, the above construction can realize radio equipment which can stably radiate radio waves even under ungroundable conditions and, at the same time, can realize good characteristics even under low transmission output conditions.
    Type: Application
    Filed: January 28, 2003
    Publication date: September 11, 2003
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Shigekazu Kawai, Tsutomu Ishikura, Yutaka Saito, Tsutomu Tanaka, Kazuo Matsubara