Abstract: A vibrating gyroscopic sensor element including a cantilever vibrator, at least one first depression on the cantilever vibrator, a pair of detection electrodes provided on the cantilever vibrator and at least one second depression on the cantilever vibrator. The cantilever vibrator projects from a base area of the vibrating gyroscopic sensor element and the first depression is effective to adjust the frequency difference between a vertical resonance frequency and a horizontal resonance frequency of the vibrator. Further, the second depression is effective to adjust the difference of signals output from the detection electrodes.

Abstract: A vibrating gyroscopic sensor including a vibrating gyroscopic sensor element including a cantilever vibrator that includes a piezoelectric film, a driving electrode, and a pair of detection electrodes on a first surface, and a support substrate on which the vibrating gyroscopic sensor element is mounted. The vibrating gyroscopic sensor element is mounted on the support substrate so that the first surface of the cantilever vibrator faces the support substrate. An area other than the first surface of the cantilever vibrator is defined as a laser processing area where a depression for adjusting the vibration characteristics of the cantilever vibrator is to be provided.

Abstract: A narrow magnetic body 66 in which outward path and inward path recording magnetic head devices 1WF and 1WR, capable of recording at least data on a metal evaporated type magnetic tape 51 running in the outward and inward direction and vice versa along the longitudinal direction, comprise the operation magnetic gaps GF and GR with the asymmetric structure is located at the leading side of the metal evaporated type magnetic tape 51. With this arrangement, magnetic field influence exerted by the narrow magnetic body can be decreased, and difference produced between magnetic recording and reproducing characteristics when the metal evaporated type magnetic tape is transported in the outward direction and in the inward direction can be decreased. Also, deteriorations of characteristics deteriorated by off-track upon reproduction can be improved.

Abstract: A vibrating gyrosensor includes a support substrate on which a wiring pattern having a plurality of lands is formed, and a vibrating element mounted on a surface of the support substrate. The vibrating element includes a base part having a mounting surface on which a plurality of terminals, and a vibrator part integrally projected in a cantilever manner from one of the sides of the base part and having a substrate-facing surface coplanar with the mounting surface of the base part. The vibrator part has a first electrode layer, a piezoelectric layer, and a second electrode layer, which are formed on the substrate-facing surface in that order. Furthermore, a reinforcing part is formed at the base end of the vibrator part so that the sectional area of the vibrator part gradually increases toward the base part.

Abstract: There is a need for a piezoelectric element capable of improving a productivity and a yield without impairing the piezoelectric characteristic and a method for manufacturing the same. A piezoelectric element is provided with a substrate, a first electrode film disposed on the substrate, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film. The piezoelectric film has a laminated structure composed of a plurality of crystallized piezoelectric thin films. The piezoelectric film having a predetermined thickness is formed by repeated cycles of a film formation step of forming a piezoelectric thin film and a crystallization heat treatment step of heat-treating the piezoelectric thin film to effect crystallization. In this manner, a piezoelectric film exhibiting uniform crystallinity in the film thickness direction may be produced.

Abstract: A vibrating gyroscopic sensor including a vibrating gyroscopic sensor element including a cantilever vibrator that includes a piezoelectric film, a driving electrode, and a pair of detection electrodes on a first surface, and a support substrate on which the vibrating gyroscopic sensor element is mounted. The vibrating gyroscopic sensor element is mounted on the support substrate so that the first surface of the cantilever vibrator faces the support substrate. An area other than the first surface of the cantilever vibrator is defined as a laser processing area where a depression for adjusting the vibration characteristics of the cantilever vibrator is to be provided.

Abstract: A vibrating gyrosensor includes a support substrate on which a wiring pattern having a plurality of lands is formed, and vibrating elements mounted on a surface of the support substrate, wherein at least two vibrating elements are mounted on the support substrate, for detecting vibrations in different axial directions.

Abstract: A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

Abstract: A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

Abstract: In a magnetic tunnel effect type magnetic head 20 having a magnetic tunnel junction element 26 sandwiched with conductive gap layers 25 and 27 between a pair of magnetic shielding layers 24 and 28, the conductive gap layers 25 and 27 are formed from at least one nonmagnetic metal layer containing a metal element selected from Ta, Ti, Cr, W, Mo, V, Nb and Zr. Therefore, the magnetic head 20 can have an improved face opposite to a magnetic recording medium.

Abstract: In a magnetic tunnel effect type magnetic head 20 having a magnetic tunnel junction element 26 sandwiched with conductive gap layers 25 and 27 between a pair of magnetic shielding layers 24 and 28, the conductive gap layers 25 and 27 are formed from at least one nonmagnetic metal layer containing a metal element selected from Ta, Ti, Cr, W, Mo, V, Nb and Zr. Therefore, the magnetic head 20 can have an improved face opposite to a magnetic recording medium.

Abstract: A narrow magnetic body 66 in which outward path and inward path recording magnetic head devices 1WF and 1WR, capable of recording at least data on a metal evaporated type magnetic tape 51 running in the outward and inward direction and vice versa along the longitudinal direction, comprise the operation magnetic gaps GF and GR with the asymmetric structure is located at the leading side of the metal evaporated type magnetic tape 51. With this arrangement, magnetic field influence exerted by the narrow magnetic body can be decreased, and difference produced between magnetic recording and reproducing characteristics when the metal evaporated type magnetic tape is transported in the outward direction and in the inward direction can be decreased. Also, deteriorations of characteristics deteriorated by off-track upon reproduction can be improved.

Abstract: A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the:magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

Abstract: A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

Abstract: In a magnetic tunnel effect type magnetic head (20) having a magnetic tunnel junction element (26) sandwiched with conductive gap layers (25) and (27) between a pair of magnetic shielding layers (24) and (28), the conductive gap layers (25) and (27) are formed from at least one nonmagnetic metal layer containing a metal element selected from Ta, Ti, Cr, W, Mo, V, Nb and Zr. Therefore, the magnetic head (20) can have an improved face opposite to a magnetic recording medium.

Abstract: A magnetic tunnel effect type magnetic head comprising a first soft magnetic conductive layer which is to provide a lower shielding layer 24, a metal oxide layer 25 and a first nonmagnetic conductive layer, formed on the first soft magnetic conductive layer, to provide a lower gap layer 26, a magnetic tunnel junction layer 34 formed on the first nonmagnetic conductive layer to provide a magnetic tunnel junction element 27, a second nonmagnetic conductive layer formed on the magnetic tunnel junction layer 34 to provide an upper gap layer 28; and a second soft magnetic conductive layer formed on the second nonmagnetic conductive layer to provide an upper shielding layer 29, the metal oxide layer 25 in the lower gap layer 26 being formed beneath at least the magnetic tunnel junction layer 27.

Abstract: In a magnetic tunnel effect type magnetic head 20 having a magnetic tunnel junction element 26 sandwiched with conductive gap layers 25 and 27 between a pair of magnetic shielding layers 24 and 28, the conductive gap layers 25 and 27 are formed from at least one nonmagnetic metal layer containing a metal element selected from Ta, Ti, Cr, W, Mo, V, Nb and Zr. Therefore, the magnetic head 20 can have an improved face opposite to a magnetic recording medium.

Abstract: A magnetic tunnel element (1) including a plurality of ferromagnetic films (5, 9) laminated across an insulating film (11) formed of metal oxide films (6, 7, 8) and in which asymmetric tunnel barriers are formed along the direction in which the ferromagnetic films (5, 9) are laminated by this insulating film (11) (6, 7, 8). There are also constructed a thin-film magnetic head, a magnetic memory and a magnetic sensor, each of which includes the magnetic tunnel element (1). Since a magnetoresistive ratio can be suppressed from being lowered by decreasing a bias voltage dependency, there are provided a highly-reliable magnetic tunnel element which can obtain a high output when the magnetic tunnel element is applied to a thin-film magnetic head and the like and a method of manufacturing such a magnetic tunnel element. When a magnetic head, a magnetic memory and a magnetic sensor include this magnetic tunnel element, they become highly reliable and also become able to obtain a high output.

Abstract: A multichannel magnetic head utilizing the magnetoresistive effect comprises a plurality of magnetoresistive effect type reproducing magnetic head elements arrayed between a first and second magnetic shield and electrodes wherein the reproducing magnetic head elements are arrayed in parallel on at least the first magnetic shield and electrode. Electrodes on one side are constructed commonly by the first magnetic shield and led out as a single common terminal decreasing the number of terminals.

Abstract: The part of an MR element 25 which lies close to a medium-facing surface 10a overlaps that part of a flux-guiding element 24 which lies remote from the medium-facing surface 10a, with a second gap film 23b interposed between the elements 24 and 25. Further, the MR element 25 overlaps the flux-guiding element 24 for a distance that falls within a range of 15 to 25% of the length of the MR height of the element 25 as measured in a direction perpendicular to the medium-facing surface 10a.