摘要:
An electronic device has a wiring board mounted with an electronic circuit chip. A recess or through-hole is formed in a major surface of the wiring board on which the electronic circuit chip is mounted at a position corresponding to a central portion of the electronic circuit chip. Air trapped in a space between the electronic circuit chip and the wiring board is collected in the recess or through-hole to form a void separated from the electronic circuit chip.
摘要:
A laminate film showing good durability under pressure and heat application, and suitably used as a fixing film for toner image fixation, is provided. Such a laminate film is provided by forming a polyimide resin layer on a metal base layer at a controlled imidation percentage of 70-93%.
摘要:
A dry vacuum pump assembly that includes a casting having an inner chamber, an inlet and an outlet communicating with the inner chamber, a pair of right and left handed screw rotors positioned in the casing, each screw rotor having a cross section formed by a Quimby curve, a circular arc, and a quasi-Archimedean spiral curve, the pair of screw rotors intermeshing with each other to pump a process gas pumped from the inlet to the outlet. The pump assembly further includes a nitrogen-supplying tube that communicates with the inner chamber at a position near the outlet in the casing, and an external pipe that connects the outlet to a scrubber or a trap which external pipe is straight and does not include a silencer.
摘要:
An intermediate transfer type image forming apparatus is provided, in which a secondary transfer unit includes a secondary transfer member having a contact transfer member disposed in contact with at least the surface of an intermediate transfer medium, a bias applying unit for applying a transfer bias to transfer a toner image on the intermediate transfer medium through the secondary transfer member to a transfer medium and an inverse transfer bias having the opposite polarity to the transfer bias, and a bias switching unit for switching the applied bias of the bias applying unit so that the transfer bias is applied to an image transfer area on the intermediate transfer medium and the inverse transfer bias is applied to an image non-transfer area on the intermediate transfer medium. The apparatus is also equipped with a disturbing member for disturbing (scraping out, sweeping off or the like) toner adhering to the contact transfer member.
摘要:
A method for sheathing a substrate with a fluorine resin tube in accordance with the present invention includes placing a substrate sheathed with a heat-shrinkable fluorine resin tube into a cylindrical surface transfer member and heat-pressing the heat-shrinkable fluorine resin tube between the substrate and the cylindrical surface transfer member so that the heat-shrinkable fluorine resin tube is melt-bonded to the substrate. The fluorine resin tube after sheathing has excellent heat resistance and strength, and has a desired surface unevenness.
摘要:
An automatic watch, a complete barrel 30 is disposed on the side opposite from the dial of a main plate 22, i.e. on the front side, and has the center of rotation thereof within a first domain 310 or a fourth domain 340 of the main plate 22. An escape wheel & pinion 50, a pallet fork 60 and a balance 70 have their center of rotation within a third domain 330 or a fourth domain 340, respectively. A setting lever 120 and a yoke 130 are disposed on the front side of the main plate 22 and have their center of oscillation within the second domain 320, respectively. A yoke holder 140 holds a part of the setting lever 120 and a part of the yoke 130, respectively.
摘要:
The present invention provides a fluororesin-coated member having a fluororubber layer containing a fluororesin, and a fluororesin layer formed on the fluororubber layer. The fluororesin layer is a uniform layer formed by coating an aqueous fluororesin dispersion coating and burning it, and exhibits excellent surface smoothness and durability of adhesion to the fluororubber layer. The present invention also provides a method of producing the fluororesin-coated member.
摘要:
A fixing rotatable member for use in an image forming apparatus such as a copying apparatus or a laser beam printer is disclosed. The fixing rotatable member includes a base member and an elastic layer provided on the surface thereof. The elastic layer is addition type silicone rubber in which resin-like polyorganosiloxane and 0.1 to 2 percent by weight of inorganic fine powder are mixed.
摘要:
Compounds of formula (I): ##STR1## (wherein R represents a hydrogen atom or an acetyl group), which we have named "the adenophostins", and, have the ability to increase intracellular calcium ion concentrations by acting on the inositol 1,4,5-trisphosphate (InsP.sub.3) receptors which exist in the endoplasmic reticulum. The adenophostins are useful as hypertensive agents. They can be prepared by cultivation of a microorganism of the genus Penicillium, e.g. Penicillium brevicompactum SANK 11991 (FERM BP-3499) or Penicillium brevicompactum SANK 12177 (FERM BP-3500).
摘要:
A feeding system is provided for supplying a current to repeaters on a communication cable including a feed line for conducting a current to the repeaters. The feeding system includes a plurality of branching units provided on the communication cable and terminal stations each being connected through at least one of the repeaters to one of the branching units, and each of the terminal stations feeding a current through the feed line to the repeaters. In addition each of the plurality of branching units includes at least one switching circuit for switching to connect the at least one of the repeaters to the communication cable or to the ground, depending on the amount of current conducting through the feed line in the communication cable. Further, the current thresholds of the switching circuits in the plurality of branching units are preferably different from each other.