Patents by Inventor Masa Hayashi

Masa Hayashi 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: 6020772
    Abstract: A two stage latch or shift register latch with very reduced propagation delay in the second stage, that may be used for LSSD type integrated circuits. The two stage register includes a first stage receiving and latching data. The first stage may also include a scan input for scanning in test data. The data is passed to a second stage which provides the received data as an output and latches the output. The preferred second stage includes a pair of cross coupled inverters, and a complementary clock stage. The complementary clock stage selectively passes the received data from the first stage to the output and, then, the second latch latches the output.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: February 1, 2000
    Assignee: International Business Machines Corporation
    Inventors: Masa Hayashi, Richard F. Keil