Patents by Inventor Naoji Iwai

Naoji Iwai 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).

  • Heat radiation anode
    Patent number: 4119761
    Abstract: A heat radiation element has a substrate and a heat radiation layer formed on the substrate by oxides of a chromium-containing alloy. The oxides contain at least 35% by weight of chromium based on the total weight of the metals constituting the oxides.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: October 10, 1978
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Takashi Kuze, Toshiharu Matsuki, Koji Nagaoka, Naoji Iwai
  • Lead frame for a semiconductor device
    Patent number: 4065625
    Abstract: A lead frame for a semiconductor device, wherein a semiconductor chip-mounting portion, inner lead portions to be connected to the electrodes of said chip and outer lead portions connected to the inner lead portions are each formed of an iron core strip, both sides of which are clad with a layer of aluminum or alloy thereof.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: December 27, 1977
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Naoji Iwai, Takashi Uchida, Takemi Abe