Patent application number | Description | Published |
20090027812 | MAGNETIC SIGNAL REPRODUCTION SYSTEM AND MAGNETIC SIGNAL REPRODUCTION METHOD - The magnetic signal reproduction system comprises a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support and a reproduction head, wherein a number of protrusions equal to or greater than 10 nm in height on the magnetic layer surface, as measured by an atomic force microscope, ranges from 50 to 2500/10,000 μm | 01-29-2009 |
20130320813 | DIELECTRIC DEVICE - A dielectric device has a first electrode film having a non-oriented or amorphous structure, a dielectric film provided on the first electrode film and having a preferentially oriented structure, and a second electrode film provided on the dielectric film and having a non-oriented or amorphous structure. | 12-05-2013 |
20130320814 | PIEZOELECTRIC DEVICE - A piezoelectric device has a first electrode film, a piezoelectric film provided on the first electrode film, and a second electrode film provided on the piezoelectric film. At least one of the pair of electrode films is composed of an alloy, and a major component of the alloy is a metal selected from the group consisting of Ti, Al, Mg, and Zn. | 12-05-2013 |
20140035439 | PIEZOELECTRIC DEVICE - A piezoelectric device according to the present invention is provided with a first electrode film, a first nonmetal electroconductive intermediate film provided on the first electrode film, a piezoelectric film provided on the first nonmetal electroconductive intermediate film, a second nonmetal electroconductive intermediate film provided on the piezoelectric film, and a second electrode film provided on the second nonmetal electroconductive intermediate film. A linear expansion coefficient of the first nonmetal electroconductive intermediate film is larger than those of the first electrode film and the piezoelectric film, and a linear expansion coefficient of the second nonmetal electroconductive intermediate film is larger than those of the second electrode film and the piezoelectric film. | 02-06-2014 |
20140035440 | PIEZOELECTRIC DEVICE - A piezoelectric device according to the present invention is provided with a pair of electrode films, a piezoelectric film sandwiched in between the pair of electrode films, and a stress control film which is in direct contact with a surface of at least one of the pair of electrode films, on the side where the electrode film is not in contact with the piezoelectric film, and which has a linear expansion coefficient larger than those of the relevant electrode film and the piezoelectric film. | 02-06-2014 |
20140084749 | THIN FILM PIEZOELECTRIC DEVICE - A thin film piezoelectric device according to the present invention includes a pair of electrode layers and a piezoelectric thin film interposed between the pair of electrode layers, wherein the piezoelectric thin film contains a rare gas element and has a content gradient of the rare gas element in the thickness direction of the piezoelectric thin film. | 03-27-2014 |
20140084754 | THIN FILM PIEZOELECTRIC DEVICE - A thin film piezoelectric device according to the present invention includes a potassium sodium niobate-based piezoelectric thin film having an average crystal grain diameter of 60 nm or more and 90 nm or less, and a pair of electrode films configured to hold the piezoelectric thin film therebetween. | 03-27-2014 |
20140145555 | THIN-FILM PIEZOELECTRIC ELEMENT, THIN-FILM PIEZOELECTRIC ACTUATOR, THIN-FILM PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER APPARATUS - There are provided a thin-film piezoelectric element including a piezoelectric thin film which has an alkali niobate-based perovskite structure represented by the composition formula (K | 05-29-2014 |
20140265723 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE - A piezoelectric element includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite compound represented by a general expression ABO | 09-18-2014 |
20140265724 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, PIEZOELECTRIC SENSOR, HARD DISK DRIVE, AND INKJET PRINTER DEVICE - A piezoelectric element includes, as a piezoelectric layer, a thin film of potassium sodium niobate that is a perovskite compound represented by a general expression ABO | 09-18-2014 |
20140339961 | THIN-FILM PIEZOELECTRIC ELEMENT, THIN-FILM PIEZOELECTRIC ACTUATOR, THIN-FILM PIEZOELECTRIC SENSOR, HARD DRIVE DISK, AND INKJET PRINTER - A thin film piezoelectric element according to the present invention includes a potassium sodium niobate thin film having a structure in which a plurality of crystal grains are present in a film thickness direction; and a pair of electrode films sandwiching the potassium sodium niobate thin film. When the potassium sodium niobate thin film is divided into three regions of the same thickness in the film thickness direction and average crystal grain sizes A | 11-20-2014 |