21
Donavon W Johnson, Larry K Loucks, Charles H Sauer, Todd A Smith: Single system image uniquely defining an environment for each user in a data processing system. International Business Machines Corporation, Whitham & Marhoefer, March 19, 1991: US05001628 (143 worldwide citation)

These master system files define the system characteristics that a user at any node in the system can expect to have. The master system files are mounted remotely from each of the nodes of the system and a local copy of the master system files is kept locally reflecting the current contents of the m ...


22
Robert S Watanabe: Lumbar spine rod fixation system. March 19, 1991: US05000165 (137 worldwide citation)

A lumbar spine fixation system which includes two spaced lumbar rods extending upwardly from the sacrum on each side of the lumbar spine. The upper ends of the lumbar rods are affixed to the spine by the use of pedicle screws. In the practice of the present invention, fixation of the lower ends of t ...


23
Fumio Yasutomi, Daizo Takaoka, Naoto Tojo, Yoshiya Yamaue, Makoto Yamada, Kazuyoshi Tsukamoto: Vehicle. Sanyo Electric, Darby & Darby, March 19, 1991: US05001635 (137 worldwide citation)

A vehicle which is capable of recognizing shapes in a predetermined area, comprising: a plurality of ultrasonic sensors, an encoder, map drawing means for sequentially and continuously drawing a map of the prescribed area determined by information received from the encoder and ultrasonic sensors, me ...


24
Anthony J Abrami, Stuart H Bullard, Santiago E del Puerto, Paul M Gaschke, Mark R LaForce, Paul J Roggemann, Kort F Longenbach: Dry interface thermal chuck temperature control system for semiconductor wafer testing. International Business Machines Corporation, John D Crane, James R Warnot Jr, March 19, 1991: US05001423 (134 worldwide citation)

A wafer chuck temperature control system is disclosed for use in a semiconductor wafer testing apparatus. The wafer chuck is divided into a plurality of temperature sensor and cooling element domains corresponding to chip location regions of an overlying undiced wafer being tested. Computer scanning ...


25
David A Smith: Power factor improvement. Astec International, McCubbrey Bartels Meyer & Ward, March 19, 1991: US05001620 (132 worldwide citation)

A boost convertor power supply comprising an electronic switch controlling current through a boost inductance, a rectifier for charging a capacitor which accumulates the resulting boost charge from the boost inductance, and circuitry for repeatedly switching the electronic switch. A pulse width modu ...


26
Georges Boussignac, Jean Claude Labrune: Probe intended to be introduced within a living body. Fisher Christen & Sabol, March 19, 1991: US05000734 (130 worldwide citation)

A probe intended to be introduced within a living body, of the type comprising an elongated structure adapted to be introduced in a canal in said living body conveying a fluid, and presenting, at its end intended to be introduced in the canal, a single bag element connected to said structure, surrou ...


27
Kazunari Nakamura, Yutaka Takahashi: Endoscope apparatus for processing a picture image of an object based on a selected wavelength range. Olympus Optical, Armstrong Nikaido Marmelstein Kubovcik & Murray, March 19, 1991: US05001556 (129 worldwide citation)

An endoscope apparatus whereby the observing wavelength range can be selected in response to an object to be observed has a light source part emitting a light illuminating the object. An endoscope body has an elongated insertable part having an observing window and illuminating window in the tip par ...


28
Ralph M Horton, Royce A Anthon: Low melting point copper-manganese-zinc alloy for infiltration binder in matrix body rock drill bits. Norton Company, Marmorek Guttman & Rubenstein, March 19, 1991: US05000273 (129 worldwide citation)

A novel infiltration alloy comprises about 5 to 65% by weight of manganese, up to about 35% by weight of zinc, and the balance copper. Preferably, the infiltration alloy comprises 20% by weight of manganese, 20% by weight of zinc, and the balance copper. The infiltration alloy is useful in the manuf ...


29
James R Lawter, John M Pawelchak: Enchancers for the transdermal flux of nilvapidine. American Cyanamid Company, Thomas S Szatkowski, March 19, 1991: US05001139 (126 worldwide citation)

The transdermal flux rates of 1,4-dihydropyridine derivatives, such as nilvapidine and its enantiomers may be increased by the use of a solvent vehicle which comprises dioctyl adipate, isopropyl myristate, benzyl alcohol, diisopropyl adipate, a mixture of 5 to 50% ethyl alcohol and 95-50% of diisopr ...


30
William J Hoskin, Dermot J Pierse: Treatment apparatus and method. William J Hoskin, Christie Parker & Hale, March 19, 1991: US05000752 (125 worldwide citation)

Port wine stain treatment apparatus includes a pad supporting a plurality of diamond tipped needles. The tip of each needle is supplied with laser radiation and the tip acts to scatter laser radiation sideways. Thus, when the pad is applied to the skin, the tips penetrate the skin and when laser rad ...