Patents by Inventor Yukihiro Nakazawa

Yukihiro Nakazawa 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: 8744097
    Abstract: A microphone has a slide member and a push member. The slide member has a slide knob, and a conductive state and a nonconductive state are switched according to operation of the slide knob. The push member holds a switch in the conductive state while a push button is pushed. A mechanism interlocking of the slide member and the push member is provided and interlocks operation of the slide member with the push member by converting movement of the slide member in a sliding direction into movement of the push member in a pushing direction, the slide knob and the push button are separated from each other in the sliding direction.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 3, 2014
    Assignee: Panasonic Corporation
    Inventors: Yukihiro Nakazawa, Tetsuo Itou
  • Publication number: 20120045077
    Abstract: Microphone (1) has a slide member (13) as a first operating part, and a push member (15) as a second operating part. The slide member (13) has a slide knob (9), and a conductive state and a nonconductive state are switched according to operation with respect to the slide knob (9). The push member (15) holds a switch (21) in the conductive state while a push button (11) is pushed. An interlocking mechanism of the slide member (13) and the push member (15) is provided. The interlocking mechanism interlocks operation of the slide member (13) with the push member (15) by converting movement of the slide member (13) in a sliding direction into movement of the push member (15) in a pushing direction. Further, the slide knob (9) and the push button (11) are separated from each other in the sliding direction.
    Type: Application
    Filed: January 27, 2010
    Publication date: February 23, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Yukihiro Nakazawa, Tetsuo Itou
  • Publication number: 20120002975
    Abstract: A wireless microphone transmits audio signals using infrared rays. A plurality of infrared light emitting devices are attached to a board in the wireless microphone, and at least one of the plurality of infrared light emitting devices is disposed on each side of the board. A plurality of infrared light emitting devices may be provided on each side of the board, and the infrared light emitting devices may be disposed radially. Without providing a different dedicated board for the light emitting devices than the board, infrared rays can be radiated to an area around the mic. In this manner, a wireless microphone is provided that can radiate infrared rays to an area around the mic and that has a simple structure and a small number of components and thus can improve productivity.
    Type: Application
    Filed: March 2, 2010
    Publication date: January 5, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Yukihiro Nakazawa, Tetsuo Itou, Yuuji Kawasaki, Keiji Yamahai, Akira Okutani
  • Patent number: 7775812
    Abstract: The convenience of operation is improved and the occurrence of connection failure between a connection-target terminal of an electric appliance and a connection terminal is reduced without requiring a complicated arrangement such as a fitting structure. A microphone charging device has a dustproof shutter provided so as to be movable with a microphone device setting/drawing-off operation between a covering position covering a charging terminal portion and an exposure position exposing the charging terminal portion, a torsion spring applies a fundamental urging force to the shutter between the covering position and exposure position, and plate springs apply additional urging force to the shutter in addition to the fundamental urging force in an additional urging section provided between the covering position and exposure position and thereby sets the shutter in an additionally urged state. When the shutter reaches the exposure position, the plate springs release the shutter from the additionally urged state.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: August 17, 2010
    Assignee: Panasonic Corporation
    Inventors: Yukihiro Nakazawa, Tetsuo Ito, Tomio Takegawa
  • Publication number: 20090291602
    Abstract: The convenience of operation is improved and the occurrence of connection failure between a connection-target terminal of an electric appliance and a connection terminal is reduced without requiring a complicated arrangement such as a fitting structure. A microphone charging device (100) has a dustproof shutter (30) provided so as to be movable with a microphone device setting/drawing-off operation between a covering position at which it covers a charging terminal portion (41) and an exposure position at which it exposes the charging terminal portion (41), a torsion spring (46) which applies a fundamental urging force to the dustproof shutter (30) between the covering position and the exposure position, and plate springs (471, 472) which apply additional urging force to the dustproof shutter (30) in addition to the fundamental urging force in an additional urging section provided between the covering position and the exposure position and thereby sets the dustproof shutter (30) in an additionally urged state.
    Type: Application
    Filed: February 1, 2008
    Publication date: November 26, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Yukihiro Nakazawa, Tetsuo Ito, Tomio Takegawa