Abstract: A silver electrode joint having a high joint strength obtained by actively minimizing the particle size of a silver-zinc intermetallic compound at the solidification point. A joint obtained by joining an article to be joined, the joint including silver at least as the surface layer thereof, using a solder alloy which comprises 2-9 wt % of zinc, 0.0001-0.1 wt % of manganese and the balance consisting of tin, the solder joint having a joint interface wherein the particle size of a silver-zinc intermetallic compound, which is formed by silver being the surface layer of the article to be joined and zinc in the solder alloy, is 5 ?m or less.

Abstract: A silver electrode joint having a high joint strength obtained by actively minimizing the particle size of a silver-zinc intermetallic compound at the solidification point. A joint obtained by joining an article to be joined, the joint including silver at least as the surface layer thereof, using a solder alloy which comprises 2-9 wt % of zinc, 0.0001-0.1 wt % of manganese and the balance consisting of tin, the solder joint having a joint interface wherein the particle size of a silver-zinc intermetallic compound, which is formed by silver being the surface layer of the article to be joined and zinc in the solder alloy, is 5 ?m or less.

Abstract: An image expanding apparatus is disclosed, that comprises a coding parameter detecting portion for detecting coding parameters from an image code; an expanding parameter designating portion for designating expanding parameters; an extracting parameter calculating portion for calculating an extracting parameter based on the coding parameters and the expanding parameters; and a code extracting portion for extracting a code necessary for obtaining an expanded image designated by the expanding parameters from the image code with reference to the extracting parameter.

Abstract: A flying height tester includes a glass disc facing a magnetic head slider under test; an optical system for guiding light to the glass disc so that multiple reflections of light occur between the glass disc and the magnetic head slider; a light sensor receiving reflection light from the glass disc to output light intensity data; and a processor which calculates back the flying height based on an output function of the light sensor. The processor calibrates intensity gain data and intensity offset data of the output function using the data obtained in a pseudo-zero state of the flying height. This pseudo-zero state is obtained by applying an index matching liquid between a first-calibration magnetic head slider, having the same optical constants as the magnetic head slider under test, and the glass disc, the index matching liquid having a refractive index identical to the glass disc.

Abstract: A flying height tester includes a glass disc facing a magnetic head slider under test; an optical system for guiding light to the glass disc so that multiple reflections of light occur between the glass disc and the magnetic head slider; a light sensor receiving reflection light from the glass disc to output light intensity data; and a processor which calculates back the flying height based on an output function of the light sensor. The processor calibrates intensity gain data and intensity offset data of the output function using the data obtained in a pseudo-zero state of the flying height. This pseudo-zero state is obtained by applying an index matching liquid between a first-calibration magnetic head slider, having the same optical constants as the magnetic head slider under test, and the glass disc, the index matching liquid having a refractive index identical to the glass disc.

Abstract: The terminal deals effectively with an error occurrence in accordance with a selected one of modes that comprise a normal mode and a debug mode. The terminal comprises a mode information holder, an error detector, a mode judge unit and a initializer. The mode information holder holds mode information that indicates which mode is the selected mode. For example, the holding of the mode information is carried out ahead of supplying power to the terminal. When an error occurs in the terminal, the error detector detects the error. Then the mode judge unit judges which mode is the selected mode, by referring to the mode information so as to produce an initialization request if the normal mode is the selected mode. The initializer initializes the terminal in response to the initialization request. On the other hand, the mode judge unit does not produce the initialization request if the debug mode is the selected mode.

Abstract: An image expanding apparatus is disclosed, that comprises a coding parameter detecting portion for detecting coding parameters from an image code; an expanding parameter designating portion for designating expanding parameters; an extracting parameter calculating portion for calculating an extracting parameter based on the coding parameters and the expanding parameters; and a code extracting portion for extracting a code necessary for obtaining an expanded image designated by the expanding parameters from the image code with reference to the extracting parameter.

Abstract: A testing apparatus for a magnetic head or a magnetic disk, includes a magnetic disk; a magnetic head moving mechanism which holds a magnetic head and which moves the magnetic head to a predetermined position in a radial direction of the magnetic disk; a movement mechanism control device for driving the magnetic head moving mechanism, wherein the movement mechanism control device moves the magnetic head moving mechanism to a predetermined radial position corresponding to position data; a read/write control device for writing a predetermined magnetic signal on the magnetic disk using the magnetic head, and for reading a magnetic signal of the magnetic disk using the magnetic head; and a memory for storing therein position data embedded in a data surface of the magnetic disk, extracted from the magnetic signal which is read by the read/write control device. A testing method is also disclosed.

Abstract: A file control part 1 newly opens a file A in a file storage part 11 through a file accessing part 2, and secures a file data area having a certain size. An input/output control part 4 issues a request of writing into the file A to the file control part 1, and then writes data supplied from an input/output device 7 directly to a proper position of the data portion of the file A stored in a storage part 6 on the basis of information about the file A from the file control part 1. When the size of data to be written exceeds the file size previously secured, an input/output file managing part 8 requests again the file control part 1 to supplement a file data area having a certain size and makes it supplement the file data area.

Abstract: A time administrator includes (a) a first unit which acts as a clock and transmits a first signal indicative of a standard time, (b) a second unit which makes access to the first unit and receives the first signal, (c) a third unit which judges whether a system for adjusting a current time is adapted and further whether the system is to be applied to the standard time, and (d) a fourth unit which, when the third unit judges that the system is to be applied to the standard time, carries out a specific operation to the standard time, and transmits a second signal indicative of the result of the operation as a current time, and which, when the third unit judges that the system is not to be applied to the standard time, transmits a third signal without carrying out the operation which third signal is indicative of the standard time as a current time.

Abstract: A testing apparatus for a magnetic head or a magnetic disk, includes a magnetic disk; a magnetic head moving mechanism which holds a magnetic head and which moves the magnetic head to a predetermined position in a radial direction of the magnetic disk; a movement mechanism control device for driving the magnetic head moving mechanism, wherein the movement mechanism control device moves the magnetic head moving mechanism to a predetermined radial position corresponding to position data; a read/write control device for writing a predetermined magnetic signal on the magnetic disk using the magnetic head, and for reading a magnetic signal of the magnetic disk using the magnetic head; and a memory for storing therein position data embedded in a data surface of the magnetic disk, extracted from the magnetic signal which is read by the read/write control device. A testing method is also disclosed.

Abstract: A tapping machine provided with a quill for rotatably supporting a spindle which holds a tap on one end thereof, a reversible electric motor for rotating the spindle and axially reciprocating the quill, an overload release clutch mounted in a power transmitting mechanism which is disposed between the quill and the motor, for suspending the power transmission between the quill and the motor when an overload is applied on the quill, and pulse signal generating means mounted between the clutch and the quill in the power transmitting mechanism for generating one pulse signal in response to each one pre-set unit distance of the quill during the forward motion thereof. The tapping machine performs a working cycle in good order wherein the spindle advances from the start position while being forwardly rotated until the number of pulse signals generated from the pulse signal generating means accords with a pre-set number and returns while being backwardly rotated back to the start position.