Patents by Inventor Kaoru Kakizakai

Kaoru Kakizakai 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).

  • Method of etching aluminum foil for electrolytic capacitors
    Patent number: 5503718
    Abstract: A method of etching an aluminum foil for electrolytic capacitors, comprising the steps of electrolytically etching an aluminum foil for electrolytic capacitors that has a high cubic texture in an electrolyte containing a chloride to form pits, and enlarging the pits formed in the above step by etching, in which step of forming pits the current density is increased from 0 to a maximum value quickly and then is decreased gradually.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: April 2, 1996
    Assignee: Nihon Chikudenki Kogyo Kabushiki
    Inventor: Kaoru Kakizakai