Patents by Inventor Masanari Yamakita

Masanari Yamakita 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).

  • Optical transceiver and production method thereof
    Patent number: 8678674
    Abstract: An optical transceiver includes a single-fiber bidirectional optical transmission/reception device, a circuit board, a transmission-side FPC, a reception-side FPC and a separation wall. The optical transceiver includes a single-fiber bidirectional optical transmission/reception device includes an LD stem that converts an electric signal into an optical signal and transmits it, and a PD stem that receives the optical signal and converts it into an electric signal. The transmission-side FPC electrically connects the LD stem and the circuit board. The reception-side FPC electrically connects the PD stem and the circuit board. The separation wall is formed between the transmission-side FPC and the reception-side FPC, and grounded to the chassis of the optical transceiver. The reception-side FPC is folded and set between the chassis and the separation wall such that the board front surface is an inner side, where the micro-strip line is formed on the above board front surface.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: March 25, 2014
    Assignee: Fujitsu Optical Components Limited
    Inventors: Masaki Kunii, Tsutomu Ohtsu, Masami Kamioka, Masanari Yamakita