Patents by Inventor Yuusei Oyama

Yuusei Oyama 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).

  • Surface mounting type electronic device
    Patent number: 5821672
    Abstract: Surface mounting type electronic devices which have a lead terminal which protrudes its external connecting portion from one side of the housing. The surface mounting type electronic devices are, for example, surface mounting type piezoelectric devices such as ladder filters, surface mounting type oscillators and surface mounting type LC filters. On the opposite side of the housing, a dummy metal member for soldering is provided. The dummy metal member has a coming-off prevention. The dummy metal member is fixed to the housing by engaging the coming-off prevention with a locking portion of the housing.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: October 13, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yuusei Oyama
  • Process for manufacturing a terminal for a piezoelectric device
    Patent number: 5669126
    Abstract: A terminal for a piezoelectric device has a first electrode portion, a second electrode portion folded on the first electrode portion, projections on the first and second electrode portions, and further a vibration absorber between the first and second electrode portions. As the vibration absorber, oil, a non-volatile component of oil, silicone grease, polyamide resin, paper, an anticorrosive, a coating agent, silicone rubber, etc. may be used. Another terminal for a piezoelectric device has a sealant between the first electrode portion and the second electrode portion.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: September 23, 1997
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Nagano, Atsushi Uno, Toshiyuki Baba, Takashi Shimura, Yuusei Oyama
  • Terminal for a piezoelectric device
    Patent number: 5616981
    Abstract: A terminal for a piezoelectric device has a first electrode portion, a second electrode portion folded on the first electrode portion, projections on the first and second electrode portions, and further a vibration absorber between the first and second electrode portions. As the vibration absorber, oil, a non-volatile component of oil, silicone grease, polyamide resin, paper, an anticorrosive, a coating agent, silicone rubber, etc. may be used. Another terminal for a piezoelectric device has a sealant between the first electrode portion and the second electrode portion.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: April 1, 1997
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koichi Nagano, Atsushi Uno, Toshiyuki Baba, Takashi Shimura, Yuusei Oyama
  • Piezoelectric component for ladder type filter and method of manufacturing thereof
    Patent number: 5543763
    Abstract: A piezoelectric component includes an input terminal plate, a series ceramic resonator, an output terminal plate, a parallel ceramic resonator and a ground terminal plate stacked between a first case and a second case. Lead portions of the input terminal plate, the output terminal plate and the ground terminal plate are outwardly projected from the cases. These terminal plates and the ceramic resonators are in pressure contact with each other to attain electrical conduction therebetween and thus, form a single-section ladder type filter.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: August 6, 1996
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yuusei Oyama