Patents by Inventor Takayuki Shirahama

Takayuki Shirahama 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).

  • Semiconductor device having improved heat dissipation efficiency
    Patent number: 10062632
    Abstract: A semiconductor device includes a base plate, a case, a power semiconductor element, and a control semiconductor element. Case is provided on base plate. Power semiconductor element is disposed over base plate in case. Control semiconductor element is disposed in case. Case has an opening formed therein opposite to base plate. The semiconductor device further includes a cover to close opening in case. Cover has a hole formed in at least a portion of a region overlapping control semiconductor element in plan view.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Haruhiko Murakami, Rei Yoneyama, Yoshitaka Kimura, Takayuki Shirahama
  • SEMICONDUCTOR DEVICE
    Publication number: 20170301603
    Abstract: A semiconductor device includes a base plate, a case, a power semiconductor element, and a control semiconductor element. Case is provided on base plate. Power semiconductor element is disposed over base plate in case. Control semiconductor element is disposed in case. Case has an opening formed therein opposite to base plate. The semiconductor device further includes a cover to close opening in case. Cover has a hole formed in at least a portion of a region overlapping control semiconductor element in plan view.
    Type: Application
    Filed: December 21, 2016
    Publication date: October 19, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Haruhiko MURAKAMI, Rei YONEYAMA, Yoshitaka KIMURA, Takayuki SHIRAHAMA
  • Adjustment of transmission data rate based on data errors and/or latency
    Patent number: 8780960
    Abstract: Aspects of the present disclosure are directed to providing flexible and efficient communication by dynamically adjusting a transmit data rate in response to data status feedback. Such feedback may include information regarding data errors and/or latency. A first communication node communicates with a second communication node and sends data at an initial data rate. The transmit data rate is then selectively adjusted based on data status feedback received from the second communication node or other destination.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: July 15, 2014
    Assignee: Microsoft Corporation
    Inventors: Atsushi Kunii, Takayuki Shirahama
  • Adjustment of Transmission Data Rate Based on Data Errors and/or Latency
    Publication number: 20100274920
    Abstract: Aspects of the present disclosure are directed to providing flexible and efficient communication by dynamically adjusting a transmit data rate in response to data status feedback. Such feedback may include information regarding data errors and/or latency. A first communication node communicates with a second communication node and sends data at an initial data rate. The transmit data rate is then selectively adjusted based on data status feedback received from the second communication node or other destination.
    Type: Application
    Filed: April 13, 2010
    Publication date: October 28, 2010
    Applicant: Microsoft Corporation
    Inventors: Atsushi Kunii, Takayuki Shirahama
  • Adjustment of transmission data rate based on data errors and/or latency
    Patent number: 7702006
    Abstract: Aspects of the present disclosure are directed to providing flexible and efficient communication by dynamically adjusting a transmit data rate in response to data status feedback. Such feedback may include information regarding data errors and/or latency. A first communication node communicates with a second communication node and sends data at an initial data rate. The transmit data rate is then selectively adjusted based on data status feedback received from the second communication node or other destination.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: April 20, 2010
    Assignee: Microsoft Corporation
    Inventors: Atsushi Kunii, Takayuki Shirahama
  • Adjustment of transmission data rate based on data errors and/or latency
    Publication number: 20070009015
    Abstract: Aspects of the present disclosure are directed to providing flexible and efficient communication by dynamically adjusting a transmit data rate in response to data status feedback. Such feedback may include information regarding data errors and/or latency. A first communication node communicates with a second communication node and sends data at an initial data rate. The transmit data rate is then selectively adjusted based on data status feedback received from the second communication node or other destination.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 11, 2007
    Applicant: Microsoft Corporation
    Inventors: Atsushi Kunii, Takayuki Shirahama