Patents by Inventor Noboru Ohbo

Noboru Ohbo 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).

  • Electric power transmission device and electric power transmission method
    Patent number: 7310245
    Abstract: In an electric power transmission device in which a primary side power transmission coil (L1) and a secondary side power receiving coil (L2) are magnetically coupled, and electric power is transmitted from the primary side power transmission coil (L1) to the secondary side power receiving coil (L2) via a non-contact and out of touch, a capacitor (C1) is connected to the primary side power transmission coil (L1) in series, a voltage to be supplied to the primary side power transmission coil (L1) is converted into AC voltage and stepped up, and a series resonance circuit (7) including a mutual inductance (M) by the secondary side power receiving coil (L2) is formed; wherein a resonance point of the series resonance circuit (7) including the mutual inductance (M) by the secondary side power receiving coil (L2) is set to a frequency higher than a resonance point of a primary side series resonance circuit (6) which is composed of the primary side power transmission coil (L1) and the capacitor (C1), whereby a high
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: December 18, 2007
    Inventor: Noboru Ohbo
  • Electric power transmission device and electric power transmission method
    Publication number: 20060239043
    Abstract: In an electric power transmission device in which a primary side power transmission coil (L1) and a secondary side power receiving coil (L2) are magnetically coupled, and electric power is transmitted from the primary side power transmission coil (L1) to the secondary side power receiving coil (L2) via a non-contact and out of touch, a capacitor (C1) is connected to the primary side power transmission coil (L1) in series, a voltage to be supplied to the primary side power transmission coil (L1) is converted into AC voltage and stepped up, and a series resonance circuit (7) including a mutual inductance (M) by the secondary side power receiving coil (L2) is formed; wherein a resonance point of the series resonance circuit (7) including the mutual inductance (M) by the secondary side power receiving coil (L2) is set to a frequency higher than a resonance point of a primary side series resonance circuit (6) which is composed of the primary side power transmission coil (L1) and the capacitor (C1), whereby a high
    Type: Application
    Filed: April 22, 2005
    Publication date: October 26, 2006
    Inventor: Noboru Ohbo