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Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Steering laser beam while etching optical servo tracks for magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026007

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.


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Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Acousto-optical intensity control of laser beam. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025341

The intensity of a beam of light used to etch concentric servo tracks (12) on a magnetic medium is adjusted with an acousto-optical device to maintain the energy density delivered by the beam substantially constant while the optics (71) which generate the beam move radially of the disk (61).


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Fred Thomas Fred Thomas
Thomas Fred Charles, Johnson Paul R: Pneumatic hub locking device for etching optical servo tracks on magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025343

An apparatus for etching optical servo tracks on a magnetic storage disk (11) comprises optics for generating a beam of light for etching the servo tracks and a spindle (15) for rotating the disk (11) in proximity to the optics. The device further comprises a center pin (16) at the center of rotatio ...


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Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026004

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


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Simard Gilbert: Systeme de distribution de boissons pour bar, Beverage dispensing system for a bar. Azbar, Azbar, ROBIC, December 23, 1993: CA2135904 (3 worldwide citation)

An input device (10) is provided for selecting a mixed beverage, in response to which a plurality of individual manually operated beverage dispensers (14) will dispense predetermined quantities of the beverages to make up a selected mix. Indicators (18) can also be used to inform the bartender that ...


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Sakon Kiyoyuki, Sakagami Masahiro, Makino Yuji, Suzuki Yoshiki, Kobayashi Hideki: Poudre particulaire ultrafine pour inhalation et methode de production, Ultrafine particle powder for inhalation and method for production thereof. Teijin, MCFADDEN FINCHAM, December 23, 1993: CA2115065 (2 worldwide citation)

An ultrafine particle powder for inhalation to be delivered mainly to a lower airway, containing specific cellulose lower alkyl ethers and a medicament, at least 80% of the powder having a particle size in the range of 0.5 to 10 �m.


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Makino Yuji, Kobayashi Hideki, Suzuki Yoshiki: Preparation pour administration intratracheobronchique, Preparation for intratracheobronchial administration. Teijin Pharma, MCFADDEN FINCHAM, December 23, 1993: CA2115444 (2 worldwide citation)

A preparation for intratracheobronchial administration comprising a powder preparation for intratracheobronchial administration contained in a receptacle composed essentially of hydroxypropyl methyl cellulose.


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Seeliger Ursula, Mueller Wolfgang F, Heimann Frank, Huber Guenther, Habermann Wolfgang, Voss Hartwig, Siegel Hardo: Production simultanee dacides dicarboxyliques et de diamines a partir de polyamides, Simultaneous production of dicarboxylic acids and diamines from polyamides. Basf Aktiengesellschaft, ROBIC, December 23, 1993: CA2138154 (2 worldwide citation)

Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers by decomposing these polymers into their cons ...



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