Patents by Inventor Yukio Tamada

Yukio Tamada 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: 11955959
    Abstract: A parallel driving device that drives parallel-connected semiconductor elements includes a control unit and a gate driving circuit. The control unit detects a temperature difference between the semiconductor elements on the basis of detected values by temperature sensors that detect temperatures of the individual semiconductor elements. The control unit generates a control signal for changing the timing at which to turn on a first semiconductor element specified from the semiconductor elements on the basis of the temperature difference. The gate driving circuit generates a first driving signal for driving the semiconductor elements, and generates a second driving signal that is the first driving signal delayed on the basis of the control signal, and applies the second driving signal to the first semiconductor element.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasushi Nakayama, Yoshiko Tamada, Takayoshi Miki, Shota Morisaki, Yukio Nakashima, Kenta Uchida, Keisuke Kimura, Tomonobu Mihara
  • Patent number: 8914211
    Abstract: A vehicle brake control device is configured to correct deformation failure of a seal member and inhibit insufficient pullback of a pressing member caused by insufficient deformation of the seal member. Within a time period from a start of a lock operation to an end of the release operation, a W/C pressure is automatically increased and insufficient deformation of a seal member is corrected. It is thus possible to generate a large restoring force by the seal member when pulling back a piston, and the piston can be pulled back based on the restoring force. The piston is therefore sufficiently moved, and it is possible to inhibit insufficient piston pullback. Further, it is possible to cause a brake pad to be separated from a brake disc by a predetermined distance, and it is possible to inhibit a feeling of drag of a brake from being imparted to a driver.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: December 16, 2014
    Assignees: Advics Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Watanabe, Shinichiro Yukoku, Yukio Tamada, Takahiro Shiraki
  • Publication number: 20130116904
    Abstract: A vehicle brake control device is configured to correct deformation failure of a seal member and inhibit insufficient pullback of a pressing member caused by insufficient deformation of the seal member. Within a time period from a start of a lock operation to an end of the release operation, a W/C pressure is automatically increased and insufficient deformation of a seal member is corrected. It is thus possible to generate a large restoring force by the seal member when pulling back a piston, and the piston can be pulled back based on the restoring force. The piston is therefore sufficiently moved, and it is possible to inhibit insufficient piston pullback. Further, it is possible to cause a brake pad to be separated from a brake disc by a predetermined distance, and it is possible to inhibit a feeling of drag of a brake from being imparted to a driver.
    Type: Application
    Filed: June 15, 2011
    Publication date: May 9, 2013
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.
    Inventors: Takashi Watanabe, Shinichiro Yukoku, Yukio Tamada, Takahiro Shiraki
  • Patent number: 4217806
    Abstract: A read only memory is provided, which has a plurality of storing regions allotted for a plurality of kinds of rhythm patterns, each region having a plurality of addresses for storing, in an address sequence, a rhythm pattern of a shortest rhythm pattern unit represented by a combination of information units in the form of logic "ones" and logic "zeros", the logic "one"; representing a note being generated and the logic zero representing a note being not generated, whereby the notes are represented in binary form, whereby the required number of information units is reduced compared to the prior art. Each address in the memory has a plurality of bit positions allotted to a plurality of kinds of musical instruments, whereby a plurality of kinds of rhythm patterns are stored for a plurality of kinds of musical instruments.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: August 19, 1980
    Assignee: Roland Corporation
    Inventors: Tadao Sakai, Yukio Tamada
  • Patent number: 4217805
    Abstract: A reference rhythm storing read only memory having a plurality of addresses for storing in advance, in an address sequence, information concerning a reference rhythm pattern and a writable/readable rhythm storing random access memory having addresses corresponding to the addresses of the reference rhythm storing memory for allowing for writing/reading information concerning a desired rhythm pattern unit are provided.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: August 19, 1980
    Assignee: Roland Corporation
    Inventor: Yukio Tamada