21
Jonathan Ginat: Swivel tilt mechanism for chair. Kane Dalsimer Sullivan Kurucz, December 8, 1987: US04711491 (97 worldwide citation)

A chair includes a base, a member attached to the base and a seat support pivotable with respect to the member along a generally horizontal axis. The pivoting axis is disposed in parallel with and adjacent to a front edge of the seat. A backrest is hingedly connected to the seat. The seat has extrem ...


22
Hiroaki Okada, Yasuaki Ogawa, Takatsuka Yashiki: Prolonged release microcapsules and their production. Takeda Chemical, Wegner & Bretschneider, December 8, 1987: US04711782 (95 worldwide citation)

A microcapsule produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing said water-soluble drug and a drug retaining substance therefor and an oil layer containing a polymer substance, then thickening or solidifying said inner aqueous layer to a viscosity of not low ...


23
Phillip Pajak, Victor Salmons, Tony Chan: Reel mapping scheme for a gaming device. Bally Manufacturing Corporation, Jenner & Block, December 8, 1987: US04711451 (95 worldwide citation)

A reel mapping scheme which allows one standard reel stop control software routine to control the stopping of the reels when the device is operated as a standard gaming device, a multiple stop gaming device or a virtual reel gaming device. The gaming device includes a number of rotating symbol beari ...


24
Christoph S Harder, Heinz Jaeckel, Hans P Wolf: Method of fabricating a self-aligned metal-semiconductor FET having an insulator spacer. International Business Machines Corporation, Stephen J Limanek, December 8, 1987: US04711858 (95 worldwide citation)

A method for the fabrication of self-aligned MESFET structures with a recessed refractory submicron gate. After channel formation on a semi-insulating (SI) substrate, which may consist of a III-V compound semiconductor such as GaAs, with subsequent annealing, refractory gate material is deposited an ...


25
Richard C Cornelison, William B Retallick: Process for making metal substrate catalytic converter cores. W R Grace & Co, Robert A Sturges, Steven T Trinker, December 8, 1987: US04711009 (95 worldwide citation)

There is provided a process and apparatus for making, preferably continuously, a catalytic converter element or core especially adapted for the treatment of exhaust from an internal combustion engine, whether spark or compression ignited. The converter element may be a fan-folded or accordion folded ...


26
Kiyoshi Nagasawa, Toru Inoue, Susumu Kashiwazaki: Control system for brushless DC motor. Hitachi, Antonelli Terry & Wands, December 8, 1987: US04712050 (94 worldwide citation)

A control system for brushless DC motors detects counter electromotive force voltages induced in motor windings and produces rotor position detection signals from the counter electromotive force voltages. The maximum value of an input DC current to a motor drive circuit is held and the phase of the ...


27
Paul M Guglielmi, Ronald J Melanson, Alan Kotok: Self-timed random access memory chip. Digital Equipment Corporation, Cesari and McKenna, December 8, 1987: US04712190 (91 worldwide citation)

A self-timed random access memory circuit is designed on a single monolithic integrated circuit chip. The chip includes a random access memory including addressable storage locations, address decoding circuitry, data input and output circuitry and write enable circuitry. In addition, the chip includ ...


28
Bennett D Lass: Portable collapsible darkroom. Parkhurst & Oliff, December 8, 1987: US04711563 (90 worldwide citation)

A portable, collapsible darkroom is provided which permits the operator to develop photographic film at virtually any location. Left and right side panels, a back panel, top panel and front door are removably secured to one another to define a light tight enclosure. Sleeved arm ports and a view port ...


29
Rebecca L Bull, Kristine A Shupert: Mothers apron or bib with detachable multicolored two-dimensional infant toys to aid supervised baby play. A A Saffitz, December 8, 1987: US04710979 (89 worldwide citation)

A sleeveless, preferably lined, apron of jacket length sewn together at the shoulders having a back panel of about the same length as the front panel with detachable multicolored two-dimensional cut out toys provided on the front so that the mother or babysitter can observe or actively participate i ...


30
Mostafa S Fahim: Composition and process for promoting epithelial regeneration. Grace J Fishel, December 8, 1987: US04711780 (89 worldwide citation)

A medication for treating the surface epithelium is disclosed comprising vitamin C, a zinc salt and a sulfur amino acid. In some cases, the medication may additionally contain a mucopolysaccharide and/or a polysaccharide. A method of stimulating cell proliferation and new cell formation with said me ...