Patent application number | Description | Published |
20090165556 | Angular velocity sensing element - An angular velocity sensing element is provided, which is able to prevent breakage of an oscillation arm even when an excessively large shock is given. An angular velocity sensing element | 07-02-2009 |
20090260436 | Angular velocity sensor element - An angular velocity sensor element is provided which is capable of preventing even transmission of sudden externally-applied vibration to an element portion by absorbing the vibration. An angular velocity sensor element | 10-22-2009 |
20100244632 | Piezoelectric element and gyroscope - A piezoelectric element having a crystal structure that enables a piezoelectric film to be formed in an unstressed state is provided. The piezoelectric film contains an a-axis oriented crystal and a c-axis oriented crystal, where a difference in lattice constant between the a-axis oriented crystal and the c-axis oriented crystal is not more than 0.06 Å. The present inventors have newly found that a stress accumulated in the piezoelectric film can be reduced while maintaining favorable piezoelectric properties when a condition that the difference in lattice constant between the a-axis oriented crystal and the c-axis oriented crystal is not more than 0.06 Å is satisfied. When the condition is satisfied, the c-axis oriented crystal and the a-axis oriented crystal are properly balanced and as a result crystal particles of the piezoelectric film are closest-packed on its base in an ideal state, which contributes to a reduced stress. | 09-30-2010 |
20130240874 | LAYERED FILM INCLUDING HETEROEPITAXIAL PN JUNCTION OXIDE THIN FILM - Semiconductors of different types are formed by a crystal growth technique and joined at the interface at which rapid atomic-layer-level compositional changes occur while maintaining high crystallinity of the semiconductor layers so as to form a heterogeneous PN junction. A layered film that includes a PN junction oxide thin film is formed on a single crystal substrate. The PN junction oxide thin film is constituted by an N-type semiconductor oxide thin film and a P-type semiconductor oxide thin film that are epitaxially grown to have c-axis orientation represented by (00k). | 09-19-2013 |
Patent application number | Description | Published |
20090078105 | Scribing wheel for brittle material and manufacturing method for same, as well as scribing method, scribing apparatus and scribing tool using the same - A scribing wheel for a brittle material, comprising: an outer peripheral portion around which a circumference ridgeline is formed, where two truncated cones have connected bottoms so as to share the same rotational axis; and a number of alternating notches and protrusions which are formed in the direction of the circumference along the above described circumference ridgeline, wherein the above described protrusions are formed of portions of the above described circumference ridgeline which remain after the above described circumference ridge line is notched and have a length in the direction of the circumference so that a scribe line is drawn on the above described brittle material substrate and a vertical crack extending from the scribe line in the direction of the thickness of a brittle material substrate is formed when the scribing wheel is rotated in such a state as to be pressed against the above described brittle material substrate, wherein the length of the notches in the direction of the circumference is shorter than the length of the above described protrusions in the direction of the circumference, so that the bite (catch) on the surface of glass is improved, while lowering the high penetrability. | 03-26-2009 |
20090126551 | SCRIBING METHOD, A CUTTER WHEEL, A SCRIBING APPARATUS USING THE CUTTER WHEEL, AND AN APPARATUS FOR PRODUCING THE CUTTER WHEEL - In a glass cutter wheel where a blade edge is formed on a disk-shaped wheel, grooves having a predetermined shape are formed at a predetermined pitch in a 1/4 or smaller or 3/4 or smaller blade edge line portion of the entire perimeter of the blade edge. The ratio of the groove portion to the entire perimeter, which largely contributes to a scribing characteristic, is changed such that a desired scribing characteristic can be obtained. | 05-21-2009 |
20100186239 | TIP HOLDER FOR MANUAL CUTTER, AND MANUAL CUTTER HAVING THE TIP HOLDER - Provided is a manual cutter comprising a holder fitting unit ( | 07-29-2010 |
20100219223 | MANUAL BREAKER - A rotational shaft | 09-02-2010 |
20120012632 | CUTTER AND METHOD FOR CUTTING BRITTLE MATERIAL SUBSTRATE USING SAME - A cutter with which a diagonal crack can be created without fail deeply within a brittle material substrate is provided. The cutter has such a form that two cones or truncated cones are joined through the same bottom so as to share the same rotational axis, and the circumference of the above described bottom is used as the blade edge ridge line. In addition, grooves that incline at a predetermined angle relative to the direction of the rotational axis are created around this blade edge ridge line at predetermined intervals. Furthermore, the angles between the sides of the above described two cones or truncated cones and the above described bottom are different from each other. | 01-19-2012 |