摘要:
A method for manufacturing a liquid-discharging recording head can prevent deviation in the dimensions and the pitch of grooves, serving as liquid channels, and holes, serving as discharging ports, and generation of burrs around discharging ports while maintaining the grooves and the holes to desired sizes and without increasing a time required for the processing when forming the grooves and the holes by projecting a laser beam. When performing ablation processing of the liquid-channel grooves or the discharging ports in a top-plate blank by projecting the laser beam, the processing is performed by changing the energy density per unit time of the laser beam continuously or stepwise by adjusting the oscillation voltage or the oscillation frequency of the laser beam, attenuating the laser beam, or moving a substance to be processed along the optical axis.
摘要:
A polishing slurry prepared by dispersing in a dispersion medium, abrasive grains comprised of a material having a solubility in the dispersion medium at 25° C., of 0.001 g/100 g or higher is used to effectively remove any abrasive grains standing adherent to the surfaces of objects to be polished or the interiors of polishing apparatus after polishing.
摘要:
An optical disk driver using a top-loading mechanism is coupled to an operational processor, such as a personal computer. The term “a top-loading mechanism” means a mechanism for inserting and/or ejecting an optical disk via a top surface of the optical disk driver. Additionally, a display unit used for the operational processor can be located on an operational processing apparatus comprising such an optical disk driver and an operational processor. The optical disk driver includes a first case (12), accommodated in a housing (10a) having the operational processor therein, a second case (11); movable from a first position to a second position, the second case (11) projecting from the first case (12) so that an optical disk can be inserted and/or ejected via a top surface of the second case (11) when the second case being located at the first position, the second case being accommodated in the first case to be operatively connected to the operational processor when the second case (11) being located at the second position.
摘要:
The object of this invention is to provide a comparatively small freezing device capable of freezing supercooled water instantly at any desired time and place even though the water is at a poorly supercooled state which is resistive to freezing, by actively resolving the supercooled state. The object is achieved by providing a freezing device comprising a cylinder 1 to receive supercooled water, at least one piston 2, 3 to fit liquid-tight to the cylinder to move therein, which, by moving through the cylinder, introduces supercooled water into the cylinder, gives a mechanical impact to the supercooled water enclosed in the cylinder, and expels water in which the supercooled state has been resolved in the presence of impact, out of the cylinder, and a water inlet 1a and outlet 1b to be connected to at least one of the cylinder and piston in such a way as to allow their opening and closing.
摘要:
By employing a cleaning method wherein a substrate such as Si wafer is covered with a film having electrostatic repulsive force or a substance capable of controlling a zeta potential so as to prevent or remarkably reduce adhesion of fine particles present in a cleaning solution or etching solution, electronic parts can be produced in higher yield and lower cost.
摘要:
A highly clean fluid treatment system having a small system volume is provided by using a Bernoulli holder to accomplish stable holding of a specimen in a simple configuration. A holder having a specimen hold face formed almost the same as a specimen or having a Bernoulli effect producing region and a region surrounding the Bernoulli region made of a specific combination of materials is used and fluid supply sources are connected to the holder for supplying one or more fluids containing a treatment agent of a specimen. Since a force for inhibiting a position shift occurs on the end face of the specimen 10, stable specimen holding is enabled. The space between the specimen and the holder where treatment is executed is narrow and fluid always flows from the treatment space to the outside. Therefore, the fluid treatment system of a small volume producing high treatment efficiency and minimizing the chances of recontamination of the specimen can be provided.
摘要:
Compounds of formula (I): ##STR1## and of formula (I).sub.w : ##STR2## in which: A represents group having one of the following formulae: ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are independently selected from the group consisting of hydrogen atoms, halogen atoms, alkyl groups having from 1 to 4 carbon atoms, and alkoxy groups having from 1 to 4 carbon atoms; R.sup.1, R.sub.w.sup.1 and R.sub.w.sup.2 are, for example, hydrogen, halogen, cyano, nitro, optically substituted alkyl, alkoxy or alkoxyalkoxy; X or X.sub.w is hydroxy, alkanoyloxy, substituted alkanoyloxy or hydroxyimino; R.sup.3.sub.w and R.sup.4.sub.w are each hydrogen, alkyl or alkoxy; R.sup.5 and R.sup.5.sub.w are methyl, ethyl, isopropyl or sec-butyl; and salts thereof have valuable anthelmintic, acaricidal and insecticidal activities.
摘要:
A method of attracting flies of the Muscidae or Muscinae families comprising providing in a locus where the flies exist a fly attractant composition which contains as an active ingredient a composition extracted from a bamboo with an extractive solvent such as water or C.sub.1 -C.sub.4 alcohol.
摘要:
The housing of a hand held portable telephone has only a limited amount of surface area for providing a number of functions such as providing for a microphone, a receiver, a ringer, a keypad, an information display panel, a panel light, and a control key. By a reoperation of a control key, some equipment on the surface area is reused to perform a second function without requiring additional surface space.
摘要:
An article is packed with a heat shrinkable film having a width larger than that of the article. The film is moved in contact with a heating member and then immediately wrapped under tension about the article with the opposite side edges of the film protruded beyond the opposite ends of the article. At the same time, the film shrinks about the article to tightly pack it not only on the peripheral surface but also on the end surfaces of the article.