Patents by Inventor Mikio Nishijima

Mikio Nishijima 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 for evaluation of abrasion of a forming mold
    Patent number: 6482337
    Abstract: In a method for evaluation of abrasion of a forming mold, abrasion amounts of divided pieces which are divided from a mold piece constituting a cavity are measured with the divided pieces removed or not removed from a forming mold body. A layer, a marking-off line or satin is formed on the surfaces of the divided pieces, which are observed visually every predetermined shot to judge a degree of abrasion of the respective divided pieces.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: November 19, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigenobu Fukui, Mikio Nishijima, Hiroyuki Suzuki, Hiroyuki Kohno