Abstract: A thermal pressing machine has a case in which a fixed-side press plate is fixedly provided, a main shaft to which a moving side press plate is attached, a lever arm pivotally attached to the main shaft, a first drive mechanism coupled to a force point at one end of the lever arm, and a second drive mechanism coupled to a supporting point at the other end of the lever arm. The first drive mechanism first causes the lever arm to pivot on the supporting point to greatly move the press plate, and the first drive mechanism is then stopped to operate the second drive mechanism, so that the lever arm pivots on the force point to press the press plate against the press plate.

Abstract: Disclosed herein is a method for manufacturing a microlens substrate which is excellent in chemical resistance and light fastness to intense light irradiation, and is capable of forming a microlens substrate of a high accuracy of form. The method includes the steps of: forming a lens-shaped curve at a surface side of a transparent substrate; forming an inorganic material film on the transparent substrate so as to bury the curve therewith; and planarizing the surface of the inorganic material film to provide a microlens where the curve is buried with the inorganic material film.

Abstract: A spark plug and an engine valve member are integrally combined in the same structure by forming an ignition gap between a first electrode rod which is the center electrode incorporated in an engine valve body and a second electrode portion which is the grounding electrode formed to be integral with or incorporated in the engine valve body. The resulting structure has the features of both a spark plug and an engine valve and is advantageously compact and applicable to gasoline engines in general.

Abstract: An information recording, reproducing apparatus comprising a first operation switch, a memory for storing a plurality of operation modes with operation steps for controlling the information recording, reproducing operation with the instructions from the control apparatus, a selecting apparatus for selecting a selecting mode, and a switching apparatus for selecting one operation mode from among the plurality of operation modes, where selection of an operation mode among from the plurality of operation modes is performed after a selection mode has been selected.

Abstract: An information recording reproducing apparatus is operable with a large-capacity recording medium and is operatively connected to a host computer. The apparatus has a cache memory for temporarily storing therein information transmitted from the host computer, and also has a write-back function and a write-through function. When recording using a write-back function designated by a recording designation flag, the maximum number of substitutions of defective sectors is automatically set to a given value for a write-back operation, and a mode display indicates that a write-back mode has been selected. The write-back operation is inhibited by a write-back inhibit flag according to the frequency of occurrence of the substitutions or the condition of a substitute area to thereby enhance the reliability of recording information.

Abstract: An information recording/reproducing apparatus for recording and reproducing information on and from a recording medium having thereon spiral or coaxial tracks and rotatable by a rotating device. The information recording/reproducing apparatus comprises a memory for temporarily storing the information, and a recording/reproducing drive unit coupled to the memory for recording and reproducing the information stored in the memory means on the recording medium. Also included in the apparatus is a control unit coupled to the memory and further the recording/reproducing drive unit for controlling the recording of the information on the recording medium on the basis of the data stored in the memory and the reproduction of the information therefrom to verify the recorded information.