Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 5849438 | Phase shift mask and method for fabricating the same A phase shift mask capable of improving the profile of a photoresist film pattern to be formed, thereby achieving an easy formation of micro patterns to fabricate highly-integrated semiconductor devices, and a method for forming the phase shift mask. The ... | 12/15/1998 |
| 5847368 | Electric heating unit and method of producing same An electric heating unit comprises a heat-insulating main body consisting primarily of a heat-insulating material and formed with a groove in a surface thereof, and a heating element provided in the groove and shaped in the form of waves with an amplitude... | 12/08/1998 |
| 5836542 | Flying craft and a thruster engine suitable for use in such a craft A flying craft (14) has a dish shaped body (18, 20, 21) with a convex upper surface (18) to provide lift. Engine means (1) in the form of a jet or rocket engine is housed in the body at the rear, while a duct (15) extends through the body from an air open... | 11/17/1998 |
| 5833373 | Bearing retainer and method of fabricating the same A bearing retainer having a body formed of steel has a nitride layer on the body surface. The average particle diameter of a nitride contained in the nitride layer is not more than 1 μm. The surface of the retainer is subjected to fluoriding treatment, a... | 11/10/1998 |
| 5829202 | System of internal modular structures creating an office environment A system of internal structuring of establishments for the marketing of telecommunications services, consisting of a group of elements configuring a commercial establishment contemplating the repetitive succession of a number of identical porticos which s... | 11/03/1998 |
| 5823687 | Rolling bearing with aligning ring In a rolling bearing with aligning ring (A) in which rollers (3) serving as rolling elements are interposed between an inner ring (1) and an outer ring (2) having on its outer periphery a spherical portion (21) and in which an aligning ring (4) is fitted ... | 10/20/1998 |
| 5821174 | Passivation layer of semiconductor device and method for forming the same A passivation layer of semiconductor device, which comprises a chrome oxide on a silicon nitride or both on and beneath a silicon nitride. The chrome oxide is deposited in a physical vapor deposition technique, relieving the compressive stress of the sili... | 10/13/1998 |
| 5821131 | Method for inspecting process defects occurring in semiconductor devices A method for inspecting process defects occurring in a semiconductor device, which utilizes the phenomenon that even when photo shield film patterns are used, patterns of an etchable layer have different dimensions at different positions in a field region... | 10/13/1998 |
| 5819260 | Phrase recognition method and apparatus A phrase recognition method breaks streams of text into text "chunks" and selects certain chunks as "phrases" useful for automated full text searching. The phrase recognition method uses a carefully assembled list of partition elements to partition the te... | 10/06/1998 |
| 5817437 | Method for detecting phase error of a phase shift mask A method for detecting the phase error of a phase shift mask simply and with ease is disclosed and comprises the steps of: arranging a plurality of phase shift patterns, each having a predetermined width and serving to shift the light transmitted through ... | 10/06/1998 |
| 5812530 | Network emulator in asynchronous transfer mode A network emulator in asynchronous transfer mode, consisting of emulating the performance of a digital network of integrated wideband services operating in asynchronous transfer mode, with no need to use said network, or else emulating intense operating c... | 09/22/1998 |
| 5812485 | Synchronous graphic RAM having block write control function A synchrous graphic RAM having a block write control function, includes a column decoder for selecting a column line; a column predecoder for outputting a signal for controlling the operation of the column decoder; and a column predecoder switching portio... | 09/22/1998 |
| 5811223 | Method for inspecting process defects occurring in semiconductor devices A method for inspecting process defects occurring in a semiconductor device, which involves forming positive and negative-type etchable layer patterns on a semiconductor wafer by use of positive photoresist film patterns and negative photoresist film patt... | 09/22/1998 |
| 5810928 | Method of measuring gas component concentrations of special material gases for semiconductor, a semiconductor equipment, and an apparatus for supplying special material gases for semiconductor A method of measuring gas component Concentrations of special material gases for semiconductor, and a semiconductor equipment are provided. The method and apparatus can be incorporated in a gas pipe line system in an inline manner, and measure the compone... | 09/22/1998 |
| 5809395 | Remote antenna driver for a radio telephony system A multichannel radiotelephony system provides two way cordless communications with a plurality of multichannel transceivers portable within a coverage area comprised by a plurality of cells, each associated with a base station and antennas, such as to per... | 09/15/1998 |
| 5808495 | Magnetron driving circuit According to the present invention, to drive a magnetron, a pulse voltage is applied to the gate electrode of a field effect transistor to make the field effect transistor conductive, so that a voltage stored in a storage condenser is discharged through t... | 09/15/1998 |
| 5807920 | Retainer for rolling-contact element The present invention provides a retainer made of synthetic resin for a rolling-contact element such as a roller of a rolling-contact bearing or a one-way clutch, which is used in a lubricating oil. The retainer comprises an aliphatic polyamide resin as a... | 09/15/1998 |
| 5806990 | Pressed cage for a ball bearing A pressed cage for a ball bearing is particularly suited for use in severe lubrication conditions. The pressed cage arrangement reduces seizure, holds lubricant for long periods, and thus prolongs the life of the bearing. In the pressed cage arrangement, ... | 09/15/1998 |
| 5806633 | Elevator safety system incorporating false pit The elevator safety device creates a false pit beneath the elevator frame using left and right laterally-spaced, fixed stop members fixedly attached to the car frame, and left and right laterally-spaced safety columns affixed to the pit floor and pivotabl... | 09/15/1998 |
| 5806316 | Apparatus and method for producing working fluid for a power plant Apparatus and a method for forming a gas hydrate for use in the production of pressurised gas due to the decomposition of the gas-hydrate in a storage chamber, and for controlled delivery of the pressurised gas as working medium to a turbine engine which ... | 09/15/1998 |
| 5806106 | Lever activated toilet seat lift A seat lifter attachment for a toilet base including a mounting bracket resting on and attached to a rear upper surface portion of said toilet base by clamping action of a toilet seat and a second portion extending downwardly along one side of said toilet... | 09/15/1998 |
| 5805928 | Burst length detection circuit for detecting a burst end time point and generating a burst mode signal without using a conventional burst length detection counter A burst length detection circuit comprising at least two registers, each the registers storing a corresponding one of at least two external address signals therein, at least two internal address signal generators, each of the internal address signal gener... | 09/08/1998 |
| 5804900 | Magnetic bearing spindle device A spindle 2 is formed with a cooling-working fluid channel 19 axially extending therethrough. A housing 1 has fixed to the rear end thereof a tubular cooling-working fluid supply member 29 inserted in the fluid channel 19 with a clearance formed therearou... | 09/08/1998 |
| 5804515 | Method for forming contact holes of semiconductor device A method for forming contact holes of a semiconductor device, capable of preventing a photoresist film pattern used as a contact hole mask separating from a boro-phospho silicate glass (BPSG) film disposed of beneath the photoresist film pattern due to an... | 09/08/1998 |
| 5804504 | Method for forming wiring of semiconductor device A method for forming an upper metal wiring which is in contact with an under conductive layer in a highly integrated semiconductor device. The method includes the steps of forming a metal wiring layer on a lower insulating film, forming a contact hole in ... | 09/08/1998 |
| 5803908 | System for noninvasive hematocrit monitoring A system for determining the hematocrit transcutaneously and noninvasively. Disclosed are a finger clip assembly and an earlobe clip assembly, each including at least a pair of emitters and a photodiode in appropriate alignment to enable operation in eith... | 09/08/1998 |
| 5802008 | Word line driver in semiconductor memory device using a main decoder and a plurality of middle and sub-decoders A word line driver in a semiconductor memory device. The driver has first to (2m-n)th middle decoding units for commonly inputting an address signal of n bit and for outputting metal control signals by 2n so as to selectively drive 2... | 09/01/1998 |
| 5801469 | Superconducting bearing device A superconducting bearing device comprises an annular permanent magnetic portion 2 disposed concentrically with a rotary body 1 in the form of a vertical shaft, and superconductors 8 opposed to the lower end face of the magnet portion 2 and vertically spa... | 09/01/1998 |
| 5800041 | Underwater light fitting An underwater light fitting suitable for niche mounting in swimming pools comprises a housing including a casing, a light transmissive portion in the form of a lens, and a removable portion. Inside the housing there is a bulb mounted on a connection membe... | 09/01/1998 |
| 5799053 | High-speed predecoding address counter circuit A high-speed predecoding address counter circuit comprising at least three tetrad counters connected in series, each for inputting an external 4-bit address decoding signal in response to a set signal and cyclically shifting a logic signal with a specific... | 08/25/1998 |
| 5798977 | Power line coupling prevention circuit for semiconductor memory device A power line coupling prevention circuit for a semiconductor memory device which has a plurality of memory cell arrays and supply and ground voltage lines formed between adjacent ones of the memory cell arrays. The power line coupling prevention circuit c... | 08/25/1998 |
| 5797819 | Resin pulley A resin pulley was made of a resin material wherein an inorganic fiber such as glass fiber, an inorganic powder such as silica powder, an organic fiber such as cotton cloth fiber, and an elastomer are blended in a phenol resin. Each content of the inorgan... | 08/25/1998 |
| 5797686 | Wheel bearing device A wheel bearing device is provided in which the cutting amounts of end faces in a simultaneous process substantially balance with each other, so that a polishing process is facilitated and the tightening axial force of a nut can be stabilized. A wheel bea... | 08/25/1998 |
| 5797568 | Multi-position television monitor stand A multi-position television monitor stand, comprising two pieces with a rectangular footprint. One of the larger surfaces of such pieces has a deep, semicircular, concave depression to mate with the outer surface of a vertical support. The outer surface o... | 08/25/1998 |
| 5796817 | Hybrid circuit for an electric operating and scanning interface, applicable to electronic recorders of electromechanical telephone stations A hybrid circuit for an electric operating and scanning interface is especially applicable to electronic recorders of electromechanical telephone stations. The hybrid circuit controls voltage and current parameters on different elements of the station in ... | 08/18/1998 |
| 5796627 | Actuating and dual scanning integrated circuit In an actuating and dual scanning integrated circuit, modulators 24 of respective programmable power regulators 11 transmit to respective power converters, energy transfer commands corresponding to programming performed in the circuit. Modulation of the m... | 08/18/1998 |
| 5794236 | Computer-based system for classifying documents into a hierarchy and linking the classifications to the hierarchy A computer system uses a legal hierarchy annotated with seed citations to generate a control file, and then using the control file, permits legal documents to be classified automatically into the legal hierarchy without the need for manual intervention. E... | 08/11/1998 |
| 5791450 | Tamper-resistant vending machine A tamper-resistant door for a vending machine includes a conventionally-positioned product delivery port, a cash box vault positioned adjacent the delivery port for receiving a cash box, a coin return chute positioned at an upper corner of the delivery po... | 08/11/1998 |
| 5791433 | Variable throttle valve with eccentric members, for use in hydraulic steering device A screw member is screwed into a spool which is axially movably inserted into a housing. The opening of the throttling portion of a variable throttle valve is varied according to the axial shifting of the spool according to the rotation of the screw membe... | 08/11/1998 |
| 5790468 | Refresh counter for synchronous dynamic random access memory and method of testing the same A refresh counter for an SDRAM and a method of testing the same. An internal bank select address for the test of the refresh counter has a predetermined state in a test mode to correspond to an external bank select address in a burst mode, so that the ref... | 08/04/1998 |
