摘要:
The method of manufacturing a liquid ejection head includes the steps of: forming a groove section in a first layer of a substrate including at least the first layer and a second layer, the groove section having a bottom face constituted by the second layer and being formed in a ring shape; forming a protective film on the groove section; forming a diaphragm on a surface of the first layer where the groove section is opened; forming a piezoelectric element on the diaphragm; forming an opening section in the diaphragm so as to expose a portion of a region of the first layer surrounded by the groove section; and etching the first layer via the opening section so as to form a pressure chamber, using the second layer as an etching stop layer.
摘要:
A method of rewriting a boot program into a memory device including at least first and second memory blocks to which a boot program can be electrically written and from which a boot program can be electrically erased, includes the steps of (a) erasing data stored in the second memory block to which a new boot program is to be written, (b) writing a new boot program into the second memory block, (c) changing an address of the second memory block such that the second memory block can be recognized as the new primary boot block, (d) erasing an existing boot program from the first memory block, and leaving the second memory block as the primary boot block until a further new boot program is written into the memory device.
摘要:
A process for producing surface-treated carbon black for rubber reinforcement comprising: a surface treatment reaction step of dispersing carbon black for rubber reinforcement in water, followed by reacting a metal silicate and an acid in the dispersion to thereby deposit amorphous silica on the surface of the carbon black; and a subsequent aging step of bringing the pH of the dispersion to not more than 7.
摘要:
The DC motor according to the present invention includes one radial ball bearing and a thrust bearing constituted by a shaft receiving member provided on a housing to be abutted by one end of a rotating shaft. Further, a magnetic and/or a spring bias force is applied to the rotating shaft to supplement thrust load bearing force of the thrust bearing. Compared with conventional DC motors in which a rotor is supported by a shaft through a pair of ball bearings which are axially spaced apart from each other, the present invention enables reduction of the overall motor height without harming the rotational stability while simultaneously achieving low production cost.
摘要:
A conveyor belt comprising an endless belt body and a plurality of reinforcing cords embedded in the endless belt body, the reinforcing cord having a triple twist structure using first twisting, secondary twisting, and final twisting, (1) the filaments in the organic fiber filament bundle being oriented at an angle within .+-.10.degree. to the cord axis of the reinforcing cord or (2) a core yarn being inserted into the core of the twist structure of the reinforcing cord.
摘要:
A manufacturing method for a battery cover, in which plural molds are used for forming a space corresponding to a shape of the cover, the tab terminals are disposed in the space, synthetic resin is filled in the space to embed the tab terminals, characterized by that plural pieces made of the same material as the filled synthetic resin are installed with distances left between them on both surfaces of embedded portions of the tab terminals, and the tab terminals are disposed in the space under this state.
摘要:
A fan motor has a pair of ball bearings placed in the vicinity of each end of an inner side of a bearing race. A plurality of projections are sequentially placed circumferentially around a center portion of the bearing race to axially locate both the ball bearings. A plurality of low-profile projections are sequentially formed between neighboring projections on the inner side surface of the bearing race and are axially elongated from one installing position to that of another installing position of respective ball bearings. The ball bearings are supported by the inner side of each low-profile projection respectively at one end portion and the other end portion of the low profile-projections.
摘要:
A motor is provided which includes a housing, a stator attached to the cylindrical wall of the housing, a sleeve bearing attached to the inner periphery of the cylindrical wall, a rotor rotatably supported by the sleeve bearing, and a rotor magnet attached to the rotor. A plurality of projecting strips are formed substantially at equal intervals on the inner and/or outer periphery of the cylindrical wall of the housing. The cylindrical wall is formed into a shoulder and a mating recess. The stator has elastic pieces. Because of the operation of the elastic pieces, the stator is elastically retained between the shoulder and the mating recess. Circuitry for protecting the motor is improved.
摘要:
A battery having a filling part and a pair of tab terminals on a convex portion of an upper surface of a cover so as to enable a connecting operation by mounting a receptacle housing of faston terminal type, and a manufacturing method for the cover for use in the battery. [1] A battery, in which projecting ends of the pair of tab terminals are located with the filling part positioned between them and are projected in the same side in a longitudinal direction so that the projecting ends are positioned on an upper surface of the cover. [2] A battery, in which two concave portions are formed on side surfaces other than those to which the receptacle housing of convex portion are mounted, the two concave portions opening only on side surfaces of the convex portion extending downward from positions displaced from the upper surface of the convex portion, or opening over areas ranging from the side surfaces of convex portion to the side surfaces of cover, and charge terminals are installed in the concave portions adjacent to their upper surfaces.
摘要:
Propioxatins A and B, which have the formula: ##STR1## wherein R represents a hydrogen atom or a methyl group, can be prepared by cultivating a suitable strain of Kitasatosporia, e.g. Kitasatosporia sp. SANK 60684 (FERM-P 7581). They can be salified to give pharmaceutically acceptable salts. The compounds are active as enkephalinase B inhibitors and are thus capable of enhancing enkephalin activity in vivo.