Patents by Inventor Isago Konno

Isago Konno 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).

  • Horizontal linearity correction coil
    Patent number: 5473299
    Abstract: A horizontal linearity correction coil is used for a television receiver having a cathode ray tube of a wide deflection angle and has excellent productivity, quality and loading respectively. The ferrite magnetic core has the flanges at both ends and the middle and has a hollow shape at one winding core portion of the ferrite magnetic core. The windings are wound around the winding core portions and the permanent magnets are combined to both end flanges.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: December 5, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yutaka Tsutsumi, Isago Konno, Takanobu Ito
  • Inboard type magnetic system for electro-dynamic transducer
    Patent number: 4055732
    Abstract: An inboard type magnetic system for an electrodynamic transducer which has a reduced height and magnetic flux leakage by making use of a manganese-aluminum-carbon system alloy magnet anisotropized by warm extrusion.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: October 25, 1977
    Assignee: Matsushita Electric Industrial Company Limited
    Inventors: Hisashi Yoshimura, Sadao Yukimoto, Takashi Matsumoto, Isago Konno, Nobuyuki Kato, Tadao Ohtani, Takao Kubo
  • Magnetic alloys having wasp-waisted magnetic hysteresis loop
    Patent number: 4042429
    Abstract: Magnetic alloys consisting of 68.0.about.73.0 weight % manganese, (1/10 Mn - 6.6).about.(1/3 Mn - 22.2) weight % carbon, the balance aluminum, which show wasp-waisted magnetic hysteresis loops with the ratio of the residual magnetization 4.pi.I.sub.r to the intensity of magnetization 4.pi.I.sub.10000 in a magnetic field of 10000 Oe, I.sub.r /I.sub.10000, falling 0.0.about.0.2.
    Type: Grant
    Filed: October 1, 1974
    Date of Patent: August 16, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeru Kojima, Kiyoshi Kojima, Tadao Ohtani, Nobuyuki Kato, Yoichi Sakamoto, Isago Konno, Masaharu Tsukahara, Takao Kubo
  • Anisotropic permanent magnet of Mn-Al-C alloy
    Patent number: 4023991
    Abstract: An anisotropic permanent magnet of an Mn-Al-C alloy containing 68.0% to 73.0% by weight of manganese, (1/10Mn-6.6)% to (1/3Mn-22.2)% by weight of carbon, and the remainder aluminum, which alloy is rendered anisotropic by deforming it plastically at a temperature of 530.degree. to 830.degree. C.The permanent magnet has excellent mechanical characteristics and magnetic properties such that the (BH) max is above 4.8 .times. 10.sup.6 G.Oe up to about 9.2 .times. 10.sup.6 G.Oe in its bulk state.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: May 17, 1977
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takao Kubo, Tadao Ohtani, Shigeru Kojima, Nobuyuki Kato, Kiyoshi Kojima, Yoichi Sakamoto, Isago Konno, Masaharu Tsukahara
  • Magnetron employing a permanent magnet formed of a manganese-aluminum-carbon system alloy
    Patent number: 3989979
    Abstract: A magnetron comprising means for applying a magnetic field in a direction perpendicular to an electric field established between an anode and a cathode, the magnetic field applying means including a permanent magnet formed of a manganese-aluminum-carbon system alloy and disposed within an enclosure member in which an interaction space for electrons is formed, or used as part of the enclosure member.
    Type: Grant
    Filed: July 29, 1975
    Date of Patent: November 2, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Isago Konno, Tadao Ohtani
  • Machinable anisotropic permanent magnets of Mn-Al-C alloys
    Patent number: 3976519
    Abstract: An anisotropic permanent magnet of an Mn-Al-C alloy containing 68.0% to 73.0% by weight of manganese, (1/10 Mn-6.6)% to (1/3 Mn-22.2)% by weight of carbon, and the remainder aluminum, which alloy is rendered anisotropic by deforming it plastically at a temperature of 530.degree.C to 830.degree.C.The permanent magnet has excellent mechanical characteristics and magnetic properties such that the (BH)max is above 4.8 .times. 10.sup.6 G.Oe up to about 9.2 .times. 10.sup.6 G.Oe in its bulk state.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: August 24, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takao Kubo, Tadao Ohtani, Shigeru Kojima, Nobuyuki Kato, Kiyoshi Kojima, Yoichi Sakamoto, Isago Konno, Masaharu Tsukahara
  • Method of making permanent magnets of Mn-Al-C alloy
    Patent number: 3944445
    Abstract: A method of making isotropic Mn-Al-C alloy magnets which comprises the step of subjecting an alloy comprising 71.0% to 73.0% by weight of manganese, (1/10 Mn -- 6.6)% to (1/3 Mn -- 22.2)% by weight of carbon and the remainder aluminum to plastic deformation at a temperature of 550.degree.C to 780.degree.C.By utilizing this method, it is possible to obtain isotropic Mn-Al-C alloy magnets having excellent magnetic characteristics, i.e. (BH)max = 2.0 .times. 10.sup.6 G. Oe or more.
    Type: Grant
    Filed: October 8, 1974
    Date of Patent: March 16, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadoa Ohtani, Nobuyuki Kato, Shigeru Kojima, Yoichi Sakamoto, Masaharu Tsukahara, Kiyoshi Kojima, Isago Konno, Takao Kubo