Abstract: A high reliability and low power consumption anti-lock brake system is disclosed in the present invention. The two pilot valves in the present invention are controlled so as not to be energized concurrently. The secondary battery of the anti-lock brake system is charged by power supply and/or generator. An electric double layer capacitor comprising a housing made of functionally graded aluminum—ceramic material is used as the secondary battery.
Type:
Grant
Filed:
August 27, 2003
Date of Patent:
May 9, 2006
Assignees:
Railway Technical Research Institute, Shinko Electric Co., LTD, Kayaba Industry Co., Ltd., NEC Tokin Corporation, NEC Tokin Ceramics Corporation
Abstract: In a microactuator device (2) having a cut face formed by cutting or splitting, the cut face is subjected to anti-release treatment for preventing release of particles produced by cutting. The microactuator device may have a multilayer structure including a plurality of piezoelectric elements and a plurality of internal electrodes alternately laminated. In this case, the multilayer structure has the above-mentioned cut face. It is preferable that the microactuator device is mounted between a base plate (3) to be fixed and a support spring (5) for supporting a head (4), and that the microactuator device and portions of the base plate and the support spring which are adjacent to the microactuator device are collectively coated with a coating film.
Type:
Application
Filed:
June 26, 2003
Publication date:
January 8, 2004
Applicants:
NEC TOKIN CERAMICS CORPORATION, NEC TOKIN CORPORATION
Abstract: In a microactuator device (2) having a cut face formed by cutting or splitting, the cut face is subjected to anti-release treatment for preventing release of particles produced by cutting. The microactuator device may have a multilayer structure including a plurality of piezoelectric elements and a plurality of internal electrodes alternately laminated. In this case, the multilayer structure has the above-mentioned cut face. It is preferable that the microactuator device is mounted between a base plate (3) to be fixed and a support spring (5) for supporting a head (4), and that the microactuator device and portions of the base plate and the support spring which are adjacent to the microactuator device are collectively coated with a coating film.
Type:
Grant
Filed:
August 2, 2001
Date of Patent:
September 9, 2003
Assignees:
NEC Tokin Ceramics Corporation, NEC Tokin Corporation
Abstract: A stacked-type capacitor with a fuse function for breaking an abnormal current wherein internal electrodes of a same polarity stacked in a ceramic body are led out to an outer surface of the ceramic body through lead-out electrodes. The lead-out electrodes have end surfaces exposed in the outer surface of the ceramic body. A film electrode for fuse function is formed on the outer surface to overlie the end surfaces of the lead-out electrodes and to be connected to an external electrode formed on the ceramic body. The film electrode is made from metallic powder and/or metallo-organic compound paste. The paste can contain powder of glass forming elements.
Type:
Grant
Filed:
July 31, 2000
Date of Patent:
June 10, 2003
Assignees:
NEC Tokin Corporation, NEC Tokin Ceramics Corporation