...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7969344 | Methods and systems for improved extraction of a signal from a noisy environment Methods and systems consistent with the present invention allow identification of a true signal contained in a signal containing the true signal and noise. In general, digital signal information representing a signal of interest plus noise is utilized by the present... | 06/28/2011 |
| 6372318 | Method of forming container with high-crystallinity sidewall and low-crystallinity base A method of making a polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withsta... | 04/16/2002 |
| 6035626 | Gas turbine starter assist torque control system An electronic control system for regulating the amount of torque applied by a starter/generator to a gas turbine engine during startup. The control system senses engine speed, compares the engine's actual acceleration with a predetermined acceleration, an... | 03/14/2000 |
| 5648430 | Curable fluoroelastomeric compositions Curable fluoroelastomeric compositions employable for preparing fuel hoses or O-rings for injectors comprising: A) 100 phr (parts) copolymers or terpolymers based on VDF with a content in fluorine of at least 67% by weight, the VDF being comprised from 30 to 5... | 07/15/1997 |
| 5574116 | Process for the preparation of a catalyst for the polymerization of olefins A process is disclosed for the polymerization of olefins, using (i) a catalyst and (ii) an organometallic activator from Groups I, II or III of the Periodic Table at temperatures between 20° and 250° C., and pressure up to 200 bar, in solution, or in su... | 11/12/1996 |
| 5521575 | Key signal input circuit for microcomputer A key signal input circuit for a microcomputer including a microprocessor and a single input port. The microcomputer outputs, in sequence at a constant interval, a plurality of grid signals, receives different key signal inputs successively through the si... | 05/28/1996 |
| 5512357 | Polypropylene flexifilamentary fiber containing 0.1 to 10 weight percent of an organic spreading agent and nonwoven fabric made therefrom The present invention relates to a polypropylene three-dimensional plexifilamentary fiber, a method of manufacturing same, and a nonwoven fabric composed of the above fiber. The plexifilamentary fiber in accordance with the present invention has a three-d... | 04/30/1996 |
| 5481866 | Single stage premixed constant fuel/air ratio combustor An annular combustor system is disclosed in use with a radial turbine-type gas turbine engine module, the system having an annular housing defining a single stage combustor, an external fuel/air premixer system having a mixing chamber and a compressed air... | 01/09/1996 |
| 5468810 | Process for producing a propylene block copolymer A propylene block copolymer having a high rigidity and an excellent impact strength is produced by (1) first polymerizing propylene or a mixture of propylene and another ethylenically unsaturated hydrocarbon monomer in the presence of a catalyst comprisin... | 11/21/1995 |
| 5444068 | Imidazopyridine derivatives as angiotensin II receptor antagonists, pharmaceuticals, and treatment of hypertension therewith Imidazo-fused iso- and heterocycles, process for their preparation, compositions containing them and their use A compound of the formula ##STR1## in which the symbols have the following meaning: X is a monocyclic radical having 3,4 or 5 ring atoms, R... | 08/22/1995 |
| 5444523 | Image forming device including transfer material carrier device with grounding member An image forming device includes a transfer material carrier unit which absorbs a transfer material onto a transfer material carrier by use of an electrostatic force and carries the transfer material. The image forming device further includes a unit for c... | 08/22/1995 |
| 5440032 | Method for purifying organic solution containing lactams Disclosed is a method for purifying a lactam-containing organic solution which comprises processing an organic solution containing at least one lactam with an anion exchange resin to remove an anionic surface active substance contained in said organic sol... | 08/08/1995 |
| 5438447 | Optical deflector The improved optical deflector including a rotating shaft that is supported freely rotatable around the body of a motor, as well as an optical deflecting element and a magnet that are both fitted around the rotating shaft is further provided with a turbul... | 08/01/1995 |
| 5438591 | Quadrature amplitude modulation type digital radio communication device and method for preventing abnormal synchronization in demodulation system This invention relates to an abnormal synchronization preventing device used in a multiple value quadrature modulation type radio device and the abnormal synchronization preventing device includes a monitoring circuit for monitoring the carrier pull-out b... | 08/01/1995 |
| 5436732 | Image data processing system An image data processing system which divides image data of an image of one page into segmental image data and processes the segmental image data at a high speed. The image data processing system includes companders for respectively processing the segment... | 07/25/1995 |
| 5434582 | Extendable antenna and radio transceiver using the same An extendable antenna which has a cylindrical antenna guide for slidably retracting a first antenna portion of the extendable antenna into the interior of a housing of a radio transceiver in which the antenna guide is provided at its one end with a cylind... | 07/18/1995 |
| 5434599 | Liquid crystal display device A wiring 19 of a device directly detects a voltage from a plurality of scanning electrodes 1, a voltage detecting electrode 701 detects a voltage from a plurality of the scanning electrodes 1. A voltage variation component such as voltage distortion of th... | 07/18/1995 |
| 5432157 | Chrysospermins, active peptides from apiocrea chrysosperma having a pharmacological effect and a use thereof The invention relates to the chrysospermin active peptides of the formula I AcPhe-Aib-Ser-Aib-x-Leu-Gln-Gly-Aib-Aib-Ala-Ala-Aib-Pro- y-Aib-Aib-Gln-Trp-ol (SEQ ID NO. 1) in which x and y, independently of each other, denote Aib or Iva, which are synthesized by ... | 07/11/1995 |
| 5432023 | Fuel cell In a fuel cell comprising a stack having superposed a plurality of electromotive parts composed of a fuel electrode, an oxidizing electrode, and an electrolyte layer nipped by the two electrodes and using a liquid fuel as the fuel for the fuel cell, this ... | 07/11/1995 |
| 5432144 | Thermal-transfer recording material and a thermal-transfer recording process A thermal transfer recordimg material comprising a support having thereon a thermal transfer layer containing a dye represented by the following formula and a thermal transfer recording process capable of recording magenta images by forming a chelate dye ... | 07/11/1995 |
| 5430843 | Data transmission system and method for transmitting data having real-time and non-real-time characteristics A system for transmitting data between a plurality of linked stations within a cycle period defined by successive transmissions of a header signal indicating the start of a data transmission, only one station having a right to transmit data at a given tim... | 07/04/1995 |
| 5430310 | Field effect transistor A field effect transistor including a first compound semiconductor layer (2) serving as a buffer layer, an InAs layer (3) serving as a channel layer, and a second compound semiconductor layer (4) serving as an electron donor layer or a barrier layer which... | 07/04/1995 |
| 5428397 | Video format conversion apparatus for converting interlaced video format into progressive video format using motion-compensation Video format conversion apparatus and method for a high-definition TV capable of achieving motion compensation by macroblocks, determining stationary condition, motion-involved condition and scene change by pixels, and achieving interpolation by pixels, t... | 06/27/1995 |
| 5427041 | Upper knife releasing device in an overlock sewing machine In an overlock sewing machine for an overedge stitch and at least one kind of chain stitch other than the overedge stitch, an upper knife releasing device according to the invention comprises: an upper knife rocking arm 26 to which an cloth cutting upper ... | 06/27/1995 |
| 5428236 | Semiconductor memory device having trenched capicitor Disclosed is a memory having a p-type semiconductor substrate having a high impurity concentration a p-type semiconductor layer is formed on thereof; a groove which is formed so as to extend from a surface of the semiconductor layer to a position inside t... | 06/27/1995 |
| 5426733 | Image rotation apparatus capable of rotating image data of different numbers of pixel bits Input image data of N bits per pixel is written to and read from buffer memories each having a word length of B bits on a W/N-line basis in the order in accordance with a specified rotation angle and an image size. A word synthesizing circuit synthesizes ... | 06/20/1995 |
| 5426647 | Data communication apparatus detecting interrupt requests through data error detection A facsimile apparatus receives data from a transmitting station and is provided with a capability for determining when an interrupt request signal has been received from another station. It is first judged whether an error has occurred in received image i... | 06/20/1995 |
| 5425041 | Multiquantum barrier laser having high electron and hole reflectivity of layers It is an object of the present invention to provide a highly efficient semiconductor laser unit having excellent temperature characteristics, in which electrons or holes are suppressed from overflowing from the active layer to the cladding layers while th... | 06/13/1995 |
| 5424250 | Manufacturing method of encapsulating semiconductor device using two resin sheets having convex portions A method for manufacturing a semiconductor device in which two resin encapsulating sheets, each having a convex portion, are brought into contact with a semiconductor chip. The semiconductor chip is then encapsulated by pressing the chip between the encap... | 06/13/1995 |
| 5424460 | Synthesis intermediates containing a hexane ring and processes for their preparation The present invention relates to new fluorinated hexane compounds corresponding to the following general formula (II): ##STR1## in which X'2, X'3 and X'4 are the same or different, and denote a halogen or a pseudohalo... | 06/13/1995 |
| 5420729 | Head cleaner for VCR and automatic head cleaning apparatus and method Automatic head cleaning apparatus and method for checking insensitivity of a VCR video head and for performing a head cleaning operation for a predetermined period. When the insensitivity of the video head is not corrected even after the head cleaning ope... | 05/30/1995 |
| 5420713 | Optical scanner An optical scanner that includes: a rotating polygon mirror for scanning by deflecting a light beam for writing a latent image on a photosensitive body in a predetermined direction; a rotating shaft that is inserted into a hole arranged on the rotating po... | 05/30/1995 |
| 5420062 | Method of manufacturing an insulated gate FET having double-layered wells of low and high impurity concentrations This invention relates to an insulated gate FET in which the withstanding voltage and the latch-up resistant property are both made high. The structure thereof includes a second well formed in a first well and having an impurity concentration lower than t... | 05/30/1995 |
| 5417830 | Injection plating apparatus An injection plating apparatus for uniformly plating external leads of a semiconductor product having a lead-missing portion. The injection plating apparatus comprises cavity boxes for compressing a semiconductor product. Masks, attached to the cavity box... | 05/23/1995 |
| 5416693 | Moving picture search support device A moving picture search support device allows a particular scene or frame to be searched quickly and surely from a moving file that has been accessed in the past based on weighing that is derived from an evaluation made by the degree of importance. The de... | 05/16/1995 |
| 5416483 | Method and circuit for noise shaping A noise shaping circuit permitting a wide dynamic range for input signal and having an improved S/N ratio. In FIG. 1, the circuit comprises a delay part 3 for delaying the output signal for a one-sampling period; a first subtraction part 1 for subtracting... | 05/16/1995 |
| 5414697 | Data transmission control system A data transmission control system in which each terminal sends to a node connected to the terminal a call setting signal including data transmission band parameters such as best and worst band values and call priority required for call setting. Each node... | 05/09/1995 |
| 5412967 | Method of making a metallic ring-shaped body A method for producing a hard metallic ring body is presented in which a stock material of a ring-shape is roll formed between a pair of inner and outer forming rolls, one of which is provided with a shape change section (shaping roll). Roll forming opera... | 05/09/1995 |
| 5414529 | Image combining in image processing apparatus An image processing system assigns weight factors to two respective image signals of the equivalent color space so that the two image signals are combined according to the respective weight factors. For example, two weight factors having a sum of unity ar... | 05/09/1995 |
| 5412249 | Semiconductor device having layered electrode An n- -type InP buffer layer is formed on an n-type InP substrate. An n- -type InGaAs light absorbing layer is formed on the n- -type InP buffer layer. An n- -type InP cap layer is formed on the n- -t... | 05/02/1995 |