Piezoelectric laminate films and processes for their manufacture
Patent 5356500 Issued on October 18, 1994. Estimated Expiration Date: 
March 20, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 20, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of producing pyro-electric and piezo-electric elements Piezoelectric/pyroelectric elements Process for manufacturing a piezo- or pyroelectric polymer material comprising a cross-linking step Piezoelectric and pyroelectric polymers Patent #: 4877988 InventorsApplicationNo. 854110 filed on 03/20/1992US Classes:156/229, With stretching29/25.35, PIEZOELECTRIC DEVICE MAKING156/272.2, With direct application of electrical, magnetic, or radiant energy to work156/308.2, By tackifying substance of self-sustaining lamina to be bonded; e.g., autogenous bonding, etc.156/309.6, Involving defined plastic flow or melting of entire lamina156/311, Sequential heating and cooling during pressure applying310/311Piezoelectric elements and devicesExaminersPrimary: Simmons, David A.Assistant: Mayes, Curtis Attorney, Agent or FirmInternational ClassesB32B 031/00H01L 041/22 AbstractProvided by this invention are piezoelectric laminate films wherein films of different polymers are in laminated relationship. The piezoelectric laminate film has at least one property which is superior to the corresponding property in the films used in the lamination to form the laminate. Also provided is a method for making the laminate.Field of SearchWith stretchingAll laminae planar and face to face With covering of discrete laminae with additional lamina Involving defined plastic flow or melting of entire lamina Sequential heating and cooling during pressure applying PIEZOELECTRIC DEVICE MAKING PIEZOELECTRIC Piezoelectric elements and devices Orientation of piezoelectric polarization | |
