Patents by Inventor Ryoichi Ikuhashi

Ryoichi Ikuhashi 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).

  • Chip-type semiconductor device
    Patent number: 6614105
    Abstract: A TRIAC which is one species of chip-type semiconductors includes an element body made of silicon, electrodes provided on one face of the element body, a molybdenum plate provided on one of the electrodes by an alloy plate made of aluminum and silicon, a molybdenum plate provided on the other face of the element body by a similar alloy plate, and nickel layers provided on connection faces of the molybdenum plates to outer electrode plates, so that the electrode and molybdenum plate are firmly connected without conventional high-temperature solder which includes a great amount of lead, and that the alloy plate never melt even when newly developed low-temperature institute is employed, and that the operation of the molybdenum plates is sufficiently realized.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: September 2, 2003
    Assignees: Powered Co., Ltd., Omron Corporation
    Inventor: Ryoichi Ikuhashi
  • Chip-type semiconductor device
    Publication number: 20010017377
    Abstract: A TRIAC which is one species of chip-type semiconductors includes an element body made of silicon, electrodes provided on one face of the element body, a molybdenum plate provided on one of the electrodes by an alloy plate made of aluminum and silicon, a molybdenum plate provided on the other face of the element body by a similar alloy plate, and nickel layers provided on connection faces of the molybdenum plates to outer electrode plates, so that the electrode and molybdenum plate are firmly connected without conventional high-temperature solder which includes a great amount of lead, and that the alloy plate never melt even when newly developed low-temperature institute is employed, and that the operation of the molybdenum plates is sufficiently realized.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 30, 2001
    Applicant: POWERED CO., LTD. & OMRON CORPORATION.
    Inventor: Ryoichi Ikuhashi