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:
Apr. 12, 2011
Filed:
Mar. 28, 2006
Shigeyoshi Umemiya, Kawasaki, JP;
Masaharu Hida, Kawasaki, JP;
Shigeyoshi Umemiya, Kawasaki, JP;
Masaharu Hida, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A coating film is formed on the whole surface area of a body part. Formation of the coating film may be done by immersing the body part in a solution of parfluoropolyether. Then, the parfluoropolyether constituting the coating film is joined with the side surfaces of the body part by irradiating Xenon excimer laser in a nitrogen atmosphere onto the side faces of the body part, or to the surface exposing an electrode layer. As a result, the protective film is formed only on the side surfaces of the body part. Thus, the protective film is formed as a monomolecular film. Total body part is then cleaned by 2,3-dihydrodecafluoropentane to remove non-reacted coating film, thereby completing a multi-layer piezoelectric element.