"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 6071002 | System and method for confirming and correcting offensive and/or defensive postures in a team ball game A system for analyzing offensive and defensive patterns of teams in team sports incorporates a device for inputting data on offensive/defensive patterns to be analyzed including data on individual player actions; a device for displaying the offensive/defe... | 06/06/2000 |
| 6047986 | Air bag inflator apparatus An air bag inflator apparatus incorporating a lower canister and an upper canister forming a canister housing. The canister housing has a first wall, a second wall, a third wall, a fourth wall and a fifth wall. The first, second, third and fourth walls de... | 04/11/2000 |
| 6035816 | Valve timing control device A valve timing control device for controlling the opening/closing timing of the intake valve or exhaust valve of an internal combustion engine is disclosed, comprising a valve opening/closing rotary shaft rotatably assembled with the cylinder head of the ... | 03/14/2000 |
| 6027318 | Magnetically driven pump A magnetically driven pump includes a pump chamber, an impeller held in the pump chamber so as to be rotatable about a central axis, a drive unit for rotatively driving the impeller, and a magnetic attraction system provided on the drive unit and impeller... | 02/22/2000 |
| 6021996 | Electromagnetically operable proportional pressure control valve An electromagnetically operable proportional pressure control device has a spool which is slidably housed in a cylindrical bore formed in a housing. A pressure chamber defined in the cylindrical bore communicates with an inlet port through a diametrically... | 02/08/2000 |
| 6005427 | Digital PLL circuit In a digital PLL circuit, a DCO 3a comprising a full adder 33 and a delay circuit 34 accumulate a frequency control data N, to generate digital phase data ACC which periodically changes at a rate corresponding to the frequency control data N, a latch circ... | 12/21/1999 |
| 6004111 | Oil pump apparatus An oil pump apparatus which includes an oil pump for being driven by a driving source and for being connected to a plurality of components to which an oil is supplied from the oil pump and a control valve preventing the oil which is unnecessary to the com... | 12/21/1999 |
| 6003822 | High-hat stand A high-hat stand comprising a rod engaging a reset spring from above, and having a movable cymbal installed on top, a pedal connecting to the bottom end of said rod, and vertically moving said rod by an urging operation, a roller link on the bottom end of... | 12/21/1999 |
| 6006005 | Automatic telerecording apparatus An automatic telerecording apparatus is comprised of a television antenna which receives a television signal, and a key view-designating block which designates as a key view a view appearing in an identical or similar pattern every time a television progr... | 12/21/1999 |
| 6000092 | Wiper device with elastic torsion load absorber A wiper device for a vehicle which, when abnormal load is applied, absorbs the abnormal load so that wiping operation by a wiper blade can be carried out continuously. The wiper device is compact, and dimensional management thereof is easy. One end of a f... | 12/14/1999 |
| 5997083 | Vehicle seat with height adjustable seat cushion A vehicle seat, the seat cushion of which is divided into front and rear cushions in a fore-and-aft direction. The front cushion is rotatably mounted at its front-side lower end on a front end of a cushion frame of the vehicle seat to be tilted forward or... | 12/07/1999 |
| 5990711 | Constant current driving circuit A constant current driving circuit capable of performing constant current driving of a load without being influenced by power supply variation, temperature variation and process variation, while reducing the output amplitude on the high level side. The ci... | 11/23/1999 |
| 5984319 | Holding device The invention relates to a holding device for balancing disk-like inertial bodies, which comprises at least two clamping elements (8) centered on a center axis (A), such elements (8) having a respective radial abutment face (34), wherein the clamping elem... | 11/16/1999 |
| 5979380 | Valve timing control device A valve timing control device includes a rotor fixed on a cam shaft, a housing member rotatably mounted on the cam shaft so as to surround the rotor, a chamber defined between the housing member and the rotor and having a pair of circumferentially opposed... | 11/09/1999 |
| 5971999 | Apparatus for microdermabrasion by means of a jet of mixture of air/reducing substances and relating handle This invention is related to an apparatus for microdermoabrasion by means of a jet of a mixture of air and reducing crystals, and the associated handle. The apparatus is used in cosmetic surgery and/or dermatology and utilizes microdermoabrasion wherein a... | 10/26/1999 |
| 5972177 | Process for producing protein hydrolysates The invention relates to a method for producing protein hydrolyzates from animal and/or vegetable starting materials by comminuting the starting materials, mashing the comminuted starting materials into a pumpable mass, decomposing the mashed starting mat... | 10/26/1999 |
| 5967104 | Valve timing control device A valve timing control device for controlling the opening/closing timing of the intake valve or exhaust valve incorporates a valve opening/closing rotary shaft, a rotor provided on the rotary shaft, a timing pulley for receiving rotational power from a cr... | 10/19/1999 |
| 5960756 | Valve control device for an internal combustion engine A valve control device for an internal combustion engine includes a rotational cam shaft disposed on a cylinder head, a first cam provided on the cam shaft, a second cam provided on the cam shaft and having a larger nose portion than that of the first cam... | 10/05/1999 |
| 5951756 | Method of forming GaAs/AlGaAs hetero-structure and GaAs/AlGaAs hetero-structure obtained by the method A method of forming GaAs/AlGaAs hetero-structure. The method includes the steps of preparing a GaAs substrate having a (411)A-oriented surface and setting the GaAs substrate inside a growth container with the (411)A surface being disposed as a surface to ... | 09/14/1999 |
| 5950431 | Tandem pump apparatus A tandem pump apparatus having a first hydraulic pump for supplying operating fluid to a first actuator and a second hydraulic pump for supplying operating fluid to a second actuator in cooperation with each other is disclosed. Each hydraulic pump is prov... | 09/14/1999 |
| 5950577 | Water pump A water pump is provided with pressure-feed means whereby coolant that has leaked into the space between a bearing and a seal member in a pump housing is forcibly fed into an radiator reservoir tank in order to be recovered.... | 09/14/1999 |
| 5943989 | Valve timing control device A valve timing control device for controlling the opening/closing timing of the intake valve or exhaust valve of an internal combustion engine is disclosed, comprising a valve opening/closing rotary shaft rotatably assembled with the cylinder head of the ... | 08/31/1999 |
| 5945761 | Switched reluctance motor The clearance between the stator pole portions and the rotor pole portions at the axial central portion is larger than the clearance therebetween at the axial end portions. According to these characteristics, the magnetic attracting force causing objectio... | 08/31/1999 |
| 5943747 | Drying and shrinking of textile webs using a tentering frame equipped with guide belts and hot air nozzles An apparatus for continuous drying and shrinking of textile knitted or woven good incorporates at least one drying station that includes several oppositely disposed and oppositely hot-air nozzles which are offset relative to each other and directed into a... | 08/31/1999 |
| 5941203 | Valve timing control device A valve timing control device for controlling the opening/closing timing of the intake valve or exhaust valve of an internal combustion engine comprises: a valve opening/closing rotary shaft rotatably assembled with the cylinder head of the internal combu... | 08/24/1999 |
| 5941296 | Method for controlling the formation of a sand mold A space defined by inside surfaces of a main molding flask and lower auxiliary flask and the upper surface of a pattern plate where the upper surface of the pattern plate is retained at a predetermined level along the inside surfaces of the main molding f... | 08/24/1999 |
| 5943437 | Method and apparatus for classifying a defect on a semiconductor wafer A surface image of a semiconductor wafer having a defect is picked up as a inspection image while a surface image of a semiconductor wafer having no defect is stored in an image memory as a reference image. A density difference image between the inspectio... | 08/24/1999 |
| 5942702 | Keyboard musical instrument having fall-board assembled with case by means of oldham's coupling An upright piano includes a fall-board hinged to a upper sill and connected through a pair of flexible coupling to side arms, and each of the flexible couplings has a rotary damper embedded in the side arm and an Oldham's coupling connected between the fa... | 08/24/1999 |
| 5937810 | Valve timing control device A valve timing control device includes a rotor fixed on a cam shaft, a housing member rotatably mounted on the cam shaft so as to surround the rotor, a chamber defined between the housing member and the rotor and having a pair of circumferentially opposed... | 08/17/1999 |
| 5934983 | Double-side grinding method and double-side grinder The present invention provides a double-side grinder capable of grinding double-sides of an aluminum disk highly efficiently and affording a ground aluminum disk free of end-face flaw and superior in both surface accuracy and dimensional accuracy while ob... | 08/10/1999 |
| 5937403 | Integer permutation method and integer permutation system Integer permutation is performed while a data sequence is transferred between buffers 1 and 2 alternately. Each data piece is divided into four elements and integer permutation is executed with the elements as keys from low-order to high-order elements. I... | 08/10/1999 |
| 5931126 | Valve timing control device A valve timing control device includes a rotor fixed on a cam shaft rotatably supported on a cylinder head of an engine so as to be accommodated in the cylinder head, a housing member rotatably mounted on the cam shaft so as to surround the rotor, plural ... | 08/03/1999 |
| 5929711 | PLL circuit with pseudo-synchronization control device A PLL circuit includes a phase comparator that compares an external synchronizing signal and an internal synchronizing signal to detect a phase difference therebetween, and a voltage-controlled oscillator that generates the internal synchronizing signal b... | 07/27/1999 |
| 5921231 | Soldering tools A handheld soldering tool has a fuel reservoir or tank (10), a tip (1) heated in use by a catalyst assembly (2), a valve assembly (9) for controlling flow of gaseous fuel from the reservoir (10) to the catalyst assembly (2), and a piezo-electric ignition ... | 07/13/1999 |
| 5917919 | Method and apparatus for multi-channel active control of noise or vibration or of multi-channel separation of a signal from a noisy environment The present invention is directed to a system and method for feed-forward active control of noise and vibration. In operation, at least one of noise and vibration from potential noise and vibration sources are detected, and noise reference data based on t... | 06/29/1999 |
| 5912516 | High speed alternator/motor Eddy current loss is a significant problem in high speed permanent magnet alternator/motors. Leakage flux from the rotor magnets 32, which flows through any stationary electrically conductive material such as a bearing housing 12 will result in eddy curre... | 06/15/1999 |
| 5909028 | Position transducer and positional information processing system using the same A non-contact type position transducer has a light emitting block for splitting a light beam into two light sub-beams and a light detecting block for receiving one of the light sub-beams and another light sub-beam radiated from another light emitting bloc... | 06/01/1999 |
| 5901674 | Variable valve timing device A variable valve timing device includes a rotation shaft and a rotation transmitting member rotatably mounted thereon. The device operates between a locked condition and an unlocked condition, wherein a locking pin is in and out of a receiving bore formed... | 05/11/1999 |
| 5901520 | Interlocking building blocks Interlocking blocks are provided which are light in weight, and which may be assembled without use of mortar or other binding agent. Because the interlocking block is light in weight, it may be of a larger size than conventional blocks. Each interlocking ... | 05/11/1999 |
| 5899574 | Supporting structure of bearings A supporting structure of bearings incorporates a housing, a shaft on which a rotor is fixed, a first ball bearing supported on the housing supporting one side of the shaft and having an outer and inner race, a second ball bearing supported on the housing... | 05/04/1999 |