Patents by Inventor Tadashi Oga

Tadashi Oga 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).

  • Patent number: 10528105
    Abstract: An electronic apparatus in accordance with the present disclosure includes a first housing for accommodating a first circuit, a second housing for accommodating a second circuit, a plurality of hinge sections connecting with the first housing and allowing the second housing to rotate with respect to the first housing, a first power supply wiring for supplying electric power from the first circuit to the second circuit and a second power supply wiring for supplying electric power from the second circuit to the first circuit. The first power supply wiring and the second power supply wiring are situated to be led through any one of the plurality of hinge sections.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: January 7, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Tadashi Oga
  • Publication number: 20180039310
    Abstract: An electronic apparatus in accordance with the present disclosure includes a first housing for accommodating a first circuit, a second housing for accommodating a second circuit, a plurality of hinge sections connecting with the first housing and allowing the second housing to rotate with respect to the first housing, a first power supply wiring for supplying electric power from the first circuit to the second circuit and a second power supply wiring for supplying electric power from the second circuit to the first circuit. The first power supply wiring and the second power supply wiring are situated to be led through any one of the plurality of hinge sections.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventor: TADASHI OGA
  • Publication number: 20110267239
    Abstract: A portable radio device includes: a housing made of non-conductor having a first permittivity; a circuit board disposed in the housing; a radio circuit disposed on the circuit board; an antenna element connected to the radio circuit; and a dielectric body. The dielectric body is disposed substantially in a center of the housing in a lateral direction thereof and has a second permittivity higher than the first permittivity.
    Type: Application
    Filed: November 20, 2009
    Publication date: November 3, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Nobuharu Mashima, Tadashi Oga, Shoichi Kajiwara, Kiyoshi Nakanishi
  • Patent number: 7126545
    Abstract: A subject of the present invention is to provide an antenna unit and a portable radio device capable of attaining a wider bandwidth and a lower SAR. In the present invention, an antenna element (12) that has an effective length corresponding to a half wavelength of a transmitting frequency and a parasitic element (13) that has an effective length corresponding to a half wavelength of a receiving frequency are provided, an antenna current is induced in the antenna element (12) at the transmitting frequency upon transmitting a radio wave in a predetermined transmitting frequency band, and another antenna current is induced in the parasitic element (13) by a spatial coupling between the antenna element (12) and the parasitic element (13) at the receiving frequency upon receiving the radio wave in a predetermined receiving frequency band, whereby peak points in an antenna current distribution are scattered into two points.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: October 24, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenya Nagano, Tadashi Oga
  • Publication number: 20060017624
    Abstract: A subject of the present invention is to provide an antenna unit and a portable radio device capable of attaining a wider bandwidth and a lower SAR. In the present invention, an antenna element (12) that has an effective length corresponding to a half wavelength of a transmitting frequency and a parasitic element (13) that has an effective length corresponding to a half wavelength of a receiving frequency are provided, an antenna current is induced in the antenna element (12) at the transmitting frequency upon transmitting a radio wave in a predetermined transmitting frequency band, and another antenna current is induced in the parasitic element (13) by a spatial coupling between the antenna element (12) and the parasitic element (13) at the receiving frequency upon receiving the radio wave in a predetermined receiving frequency band, whereby peak points in an antenna current distribution are scattered into two points.
    Type: Application
    Filed: February 14, 2003
    Publication date: January 26, 2006
    Inventors: Kenya Nagano, Tadashi Oga
  • Patent number: 6240147
    Abstract: An auto frequency control apparatus arranged to vary the division ratio of the comparison signal portion in the phase comparator with the AFC control voltage so as to change the frequency in order to make coincide the frequency of the output signal from a local oscillation portion and that of a carrier-wave signal for a frequency-shift keying signal with each other. The frequency of an output signal from a reference-signal generating portion is divided by a divider 213. The frequency of the output signal from a local oscillation portion is supplied to an auto frequency control 202. A control-signal processing portion 207 receives AFC control voltage to instruct an updown counter 205 to correct the division to correspond to the voltage. In accordance with the instruction, a counter 203 divides the supplied signal, the signal being multiplied with an integer in a multiplier 204 so as to be transmitted. The output signal is divided with a division ratio set by a divider 209.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: May 29, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshihito Muramatsu, Tadashi Oga