Electroless nickel plating solution

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U.S. Patent 5,910,272. June 8, 1999 N. Kushibiki and K. Takeuchi, assignors to Dow Corning Asia Ltd., Tokyo

A process for the preparation of an electrically conductive coating material. IUCTROLISS NICOL PLAnNG SOLUTION

U.S. Patent 5,910,340. June 8, 1999 H. Uchida et al., assignors to C. Uyemura & Co. Ltd., Osaka, Japan An electroless nickel plating solu-

tion comprising a water-soluble nickel salt in an amount of 0.01 to 1 M, a reducing agent in an amount of 0.01 to 1 M, a complexing agent in an amount of 0.01 to 2 M, and a polythionate or dithionite in an amount of 0.01 to 100 mgIL.

ULTRASONIC CLlANING DIVICI

U.S. Patent 5,911,232. June 15, 1999 S. Mokuo et al., assignors to Tokyo Electron Ltd., Tokyo-to, Japan An ultrasonic cleaning device com-

U.S. Patent 5,911,259. June 15, 1999 V. Baldi, assignor to Reynolds Wheels International Ltd., Lugano, Switzerland

prising a cleaning tank for containing an object to be cleaned and a cleaning liquid; a plurality of vibrating plates for acting upon the cleaning tank; a plurality of power units for applying high-frequency voltages to the vibrating plates; and a single oscillation source for controlling the high frequency voltages applied by the plurality of power units to have a same phase whereby the vibrating plates are driven at said same phase. '-OVAL Of PAlNT'IIOM WllIIL

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Equipment for the removal of paint, in particular electrostatically applied powders, from wheel hubs, comprising an element in the form of a disk or plate affording a surface designed to interact with a wheel and shaped to match the shape ofthe hub in such a way as to function, when offered to a first face of the wheel, as means by which to block the bore of the hub. LI8HT. . . . . . . . MlTAL-PLAnD _ _ _. KIY

U.S. Patent 5,911,317. June 15, 1999 J. Tsai, assignor to Silitek Corp., Taipei, Taiwan

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March 2000

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