The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2008
Filed:
Mar. 01, 2005
Kazuhiro Komatsu, Hyogo, JP;
Masahiko Fujimoto, Hyogo, JP;
Kouji Oonishi, Hyogo, JP;
Keisuke Kido, Hyogo, JP;
Junichi Sawada, Hyogo, JP;
Kazuhiro Komatsu, Hyogo, JP;
Masahiko Fujimoto, Hyogo, JP;
Kouji Oonishi, Hyogo, JP;
Keisuke Kido, Hyogo, JP;
Junichi Sawada, Hyogo, JP;
Fujitsu Ten Limited, Kobe, JP;
Abstract
A method for preventing corrosion of a contact, includes comparing a potential of a signal line connected to the contact with a predetermined potential corresponding to the corrosion of the contact; flowing a corrosion-prevention current into the contact when a result of the comparing shows that the contact is corroded; inputting into the signal line a signal used for judging a logical value of a connection state of the contact; and in the magnitude relation, setting the predetermined potential on another side of a threshold level used in the judging of the logical value of the connection state of the contact.