Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 6701273 | Method and apparatus for controlling internal heat generating circuitry An electronic apparatus comprises a circuit, such as a semiconductor circuit, a temperature detection unit provided in the circuit, and a controlling unit. The temperature detection unit detects a temperature of the circuit and outputs a signal outside of... | 03/02/2004 |
| 6693871 | Integrated unit, optical pickup, and optical recording medium drive device The medium of a disk for CD-R is a pigmentation material so readout by a 650-nm laser diode (LD) is not possible. Since CD-R is becoming popular in the marketplace, there are demands for a DVD readout device that is capable of reading CD-R format disks. A... | 02/17/2004 |
| 6690073 | Semiconductor integrated circuit making use of standard cells A semiconductor integrated circuit which is capable of being manufactured with a higher packing density and a small-size structure of standard cells is described. In the semiconductor integrated circuit, substrate regions and source regions are shared by ... | 02/10/2004 |
| 6676258 | Eye characteristic measurement apparatus with speckle noise reduction The invention provides an apparatus which detects light quantity distribution characteristics of a measuring target image projected to a fundus of an eye to be inspected and measures eye optical characteristics from the light quantity distribution charact... | 01/13/2004 |
| 6661598 | Calibration method for use in head loading/unloading type disk apparatus In a head loading/unloading type disk apparatus, accurate velocity feedback control is implemented by correcting any error in a VCM velocity detection value, which is caused by a temperature change or the like. At the start of loading control for loading ... | 12/09/2003 |
| 6643088 | Magnetic disk drive and method of controlling a movement of carriage in an unload operation of head In a magnetic disk drive, in the case of unloading a head, a carriage receives a driving force of a voice coil motor as a controlled object so as to drive the head, and then, a speed ω of the carriage is detected from a back electromotive voltage generat... | 11/04/2003 |
| 6615384 | Encoding/decoding method and apparatus and disk storage device An encoding/decoding apparatus generates data sequences with first and second interleave structures by respectively performing data on a data sequence to be encoded, interleaving processes based on different first and second data interleaving schemes, gen... | 09/02/2003 |
| 6243656 | Cooling mode switching system for CPU Two cooling functions are provided: one being reduction in operation speed of a CPU, and the other being rotation of a motor fan. The two cooling functions are selectively used in accordance with a cooling mode set by a user. When a "Quiet" mode is select... | 06/05/2001 |
| 6097228 | Reset input circuit for an MCU A semiconductor integrated circuit device includes an MCU, reset circuit and reset input circuit. The reset circuit resets the MCU in response to a reset signal input to a reset terminal. The reset input circuit eliminates an electromagnetic disturbance n... | 08/01/2000 |
| 5953274 | Semiconductor memory device capable of storing plural-bit data in a single memory cell Each of memory cells has one MOS transistor including a drain region, a source region, a channel region and a gate electrode. An impurity-introducing area of the channel region is varied in the width direction of the channel region to store data of plural... | 09/14/1999 |
| 5414835 | IC card processing system capable of determing send timing between an IC card and an accepting device According to a portable electronic apparatus processing system of this invention, an IC card sends, to an IC card reader/writer, first timer data included in an answer to reset signal and defining a time after it sends the answer to reset signal to the IC... | 05/09/1995 |
| 5266526 | Method of forming trench buried wiring for semiconductor device A method of forming a trench buried wiring on a semiconductor device. The method includes the steps of: forming a trench in a first insulating film formed on a semiconductor substrate, by using as a mask a photoresist layer, the trench having substantiall... | 11/30/1993 |
| 4871269 | Portable label printing applicator apparatus A system for inputting label related information and for printing and applying labels to articles or the like is constituted of a self-contained label printer unit, a separate self-contained data inputting unit and a self-contained power supply unit which... | 10/03/1989 |
| 4862213 | Image forming apparatus and method An image forming apparatus utilizing two types of toners. The first toner is of a type that causes the charge thereon to increase over time, while the second toner is a type in which the charge decreases over time. The storage chamber for the apparatus ho... | 08/29/1989 |
| 4836683 | Kneading machine A kneading machine includes a kneading device for kneading a main material and a ancillary material together that are contained separately therein, a timer device for starting a kneading operation, by actuating the kneading device in accordance with a set... | 06/06/1989 |
| 4836873 | Automatic packaging method and apparatus An automatic binding apparatus produces a loop of tape and tightens the tape around an object that is inserted through the loop of tape. The apparatus has a bed-plate and a guide member which is swivelable into position on and off the bed-plate. Initially... | 06/06/1989 |
| 4830522 | Electronic hand labeler with thermal printer and plural cutters A versatile hand held thermal printer has a hinged bottom cover which can be opened to provide easier access and loading of a roll of labels into the thermal printer. In a first mode of operation, printed labels emerge through the front of the label print... | 05/16/1989 |
| 4829586 | Picture image recording memory control circuit Information rotating apparatus includes memory for storing and retrieving data units which were obtained from a plurality of lines of a manuscript. Each data unit from each line corresponds to other data units from other lines, correspondence being determ... | 05/09/1989 |
| 4820064 | Electronic hand labeler A hand held thermal printer has a hingedly mounted bottom cover which can be opened to provide comfortable access into the printer and therefore substantially simplified loading of a roll of labels into the printer. The platen roller of the printer which ... | 04/11/1989 |
| 4819011 | Thermal printer temperature regulation system A temperature regulator is provided in a thermal printer to maintain reliable and consistent printing quality. The temperature regulator is constructed to either remove heat generated during the printing process from the printing area and/or from the prin... | 04/04/1989 |
| 4804605 | Electrophotographic superlattice photoreceptor An electrophotographic photoreceptor is constituted by forming a barrier layer, a photoconductive layer, and a surface layer on an aluminum substrate drum, in the order stated. The photoconductive layer of this electrophotographic photoreceptor has a supe... | 02/14/1989 |
| 4803141 | Electrophotographic superlattice photoreceptor An electrophotographic photoreceptor is constituted by forming a barrier layer, a photoconductive layer including a charge-generating layer and a charge-transportation layer, and a surface layer on an aluminum substrate drum, in the order stated. The char... | 02/07/1989 |
| 4803139 | Electrophotographic photoreceptor An electrophotographic photoreceptor is constituted by forming a barrier layer, a photoconductive layer, and a surface layer on an aluminum substrate drum, in the order stated. The photoconductive layer of this electrophotographic photoreceptor has a supe... | 02/07/1989 |
| 4802209 | Paging system for electronic telephone apparatus The present invention discloses a switching system including an exchange coupled to a plurality of telephone lines, a plurality of telephone sets, and an attendant console. When the exchange receives a paging request of an incoming telephone call from the... | 01/31/1989 |
| 4795204 | Band clamping device for luggage carrier A band is attached in an inverted U-shape to a luggage carrier or any other similar carrier. A unique clamping arrangement permits the length of the band to be adjusted vertically to accommodate the height of a person using the carrier. Further, the later... | 01/03/1989 |
| 4783774 | Control system for optical information reproducing apparatus A control system for an optical disc information reproducing apparatus in which information data stored in an optical disc is read out during a rotation of the optical disc by a light spot of a light beam. The system includes a laser device for generating... | 11/08/1988 |
| 4782351 | Recording apparatus A recording apparatus which is for filling recording ink in a film with numerous minute orifices and heating the ink rapidly with heating elements to spurt the ink from the orifices by means of the pressure of bubbles generated in heating to record data o... | 11/01/1988 |
| 4782526 | Telephone set An improved telephone set of the type including a telephone body and a handset adapted to be placed on the former. The telephone body has a pair of engagement blocks incorporated therein of which part is projected outwardly of the telephone body and they ... | 11/01/1988 |
| 4780836 | Method of testing semiconductor devices using a probe card A method of testing semiconductor devices using a probe card having a plurality of needles thereon comprising intermittently raising a stage on which a semiconductor wafer with a metal film formed on a chip area is deposited, calculating the difference in... | 10/25/1988 |
| 4779958 | Liquid crystal device having different natural and induced twists In a liquid crystal device, liquid crystal molecules are twisted at a predetermined angle θ within the range of 180° to 360° between a pair of substances. Molecular alignment films are formed on the inner surfaces of the pair of substrates such that an... | 10/25/1988 |
| 4779014 | BiCMOS logic circuit with additional drive to the pull-down bipolar output transistor A logic circuit comprises at least one signal input terminal, an output terminal, an output circuit including a first bipolar transistor coupled between the output terminal and a reference potential terminal, to discharge the output terminal, and an MOS t... | 10/18/1988 |
| 4779263 | Time division multiplexer including a repeating adapter A time division multiplexer includes a plurality of multiplexing units and a plurality of terminal adapters. Each multiplexing unit is connected to one or more terminal adapters by a respective bus. The time division multiplexer further includes a repeati... | 10/18/1988 |
| 4774526 | Fault detection circuit for a thermal print head A thermal printer with a fault detection circuit for detecting faults in heating elements of the printer includes a print head containing heating elements and a heating circuit for each heating element and a power supply for supplying power to the heating... | 09/27/1988 |
| 4772897 | Optical recording medium An optical recording medium for optically storing and retrieving information comprises a substrate, two recording layers supported on the substrate and a barrier layer provided between the two recording layers. The two recording layers comprise a thin met... | 09/20/1988 |
| 4771335 | Method and apparatus for sending data A communication system which includes two digital terminal stations connected to each other by a digital communication line. The communication system includes data terminals adapted for operation on an analog communication line which transmits main data a... | 09/13/1988 |
| 4768890 | Carbon ribbon transport guide device An apparatus for guiding a carbon ribbon from a supply reel to a take-up reel includes an adjusting member which is used for securing a guide rod around which the carbon ribbon passes to a fixed plate. A bolt passes through an off-center hole in the adjus... | 09/06/1988 |
| 4769657 | Fault detection device for thermal printing head heating circuits A thermal printer with a fault detection circuit for detecting faults in heating elements used in the printer includes a print head containing the heating elements and a heating circuit associated with each element, a power supply, and a switching circuit... | 09/06/1988 |
| 4764954 | Automatic gain control in a loudspeaker telephone set A loud-speaker telephone set includes a switching control circuit to attenuate the incoming signal, during transmission, and to attenuate the outgoing signal, during reception, in order to prevent feedback from the loud-speaker to the microphone. An autom... | 08/16/1988 |
| 4762695 | Methods for preparing high-purity molybdenum or tungsten powder and high-purity oxides powder of the same High-purity molybdenum or tungsten powder can be produced by a process comprising (a) decomposing a powder or an oxide powder of molybdenum or tungsten with hydrogen peroxide water; (b) bringing the resulting aqueous solution of molybdenum or tungsten int... | 08/09/1988 |
| 4758325 | Ion selective electrode and flow type ion sensor using the same There are disclosed an ion selective electrode comprising a polyvinyl chloride series resin plate having a through hole; conductive member disposed along the through hole; ion sensitive membrane of a polyvinyl chloride series resin membrane; and a lead wi... | 07/19/1988 |
