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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 6589175 | Real-time arbitrary mmode for ultrasonic imaging system An ultrasonic imaging system having a real-time arbitrary mmode. A scan converter scan converts slices in real-time of a two-dimensional ultrasonic image which form an arbitrary user-defined curve within the two-dimensional ultrasonic image. The scan conv... | 07/08/2003 |
| 5070318 | Exhaust gas sensor and process for producing same An exhaust gas sensor containing BaSnO3 or the like and a process for producing the sensor. The BaSnO3 is made free of segregation and adapted to have acid-base strength of at least 6.8 as determined with Hammett's indicator. Causes ... | 12/03/1991 |
| 5034718 | Spark protection for high voltage resistors Resistors have successfully replaced corona point discharge devices in the control of high voltage gradients, such as those experienced in electrostatic accelerators. An improved resistor for such applications which has a single elongate resistive element... | 07/23/1991 |
| 5023589 | Gold diffusion thin film resistors and process A low-resistance nickel-chromium-based thin film resistor and method for forming same. A nickel-chromium alloy film is coated on at least one side with a layer of gold, the resulting gold-coated alloy film is heated at a temperature and for a time effecti... | 06/11/1991 |
| 5019797 | Electrical resistance device An electrical resistance device includes a conductive metal pattern carried on an insulating surface. A portion of the conductive metal pattern includes a two-dimensional array of areas devoid of conductive material ("voids") within a mesh of conductive m... | 05/28/1991 |
| 5015801 | Electrical circuit module An electrical circuit module in which structural elements of the circuit module are foamed or cast over with synthetic resin. At least one component is located in the interior of the resin and has an actuating shaft allowing adjustment of the component. A... | 05/14/1991 |
| 5014224 | Tactile sensor In a tactile sensor, a first conductive path made of an electrically resistive material, which is elastic, is fixed to a foil-like base. At points of intersection with good electrically conducting conductive paths, which are fixed to a second elastic foil... | 05/07/1991 |
| 5014037 | Potentiometer mounting mechanism A mechanism for a potentiometer, especially a miniature potentiometer used as a volume control in a hearing aid, onto a face plate includes a metallic band circumferentially surrounding a portion of the housing of the potentiometer. The band includes mean... | 05/07/1991 |
| 5010316 | Thermocouples of enhanced stability There is described mineral-insulated metal-sheathed (MINS) cables in which the sheath alloy has the following compositions: ______________________________________ Element Concentration (wt. %) ______________________________________ Cr ... | 04/23/1991 |
| 5008646 | Non-linear voltage-dependent resistor Non-linear voltage-dependent resistor having a ceramic sintered body based on zinc oxide as a resistance material which is doped with at least one alkaline earth metal, rare earth metal and metal of the iron group present as an oxide and is doped with at ... | 04/16/1991 |
| 5006828 | Exhaust gas sensor and process for producing same A BaSnO3 exhaust gas sensor and a process for producing the same. Surface reformation of sensor electrodes is done for preventing the deterioration of the sensor response and the corrosion of the electrodes by the Sn in the BaSnO3. A... | 04/09/1991 |
| 5004996 | Hydraulic actuating apparatus A hydraulic actuating apparatus for sensing hydraulic pressure and producing an output signal representative of the sensed hydraulic pressure includes a base portion, a case, and a variable resistor unit. A slider is movably connected to the variable resi... | 04/02/1991 |
| 5003284 | Infrared radiator An infrared radiator includes a non-circular jacket tube made of quartz material, which may be quartz glass, the length of which is a multiple of the larger interior diameter and the interior of whch, in a sectional view, is separated into two areas, in e... | 03/26/1991 |
| 5001454 | Thin film resistor for strain gauge A thin film resistor for a strain gauge prepared by physical or chemical vapor deposition. The resistor contains 60 to 98 atomic % of chromium, 2 to 30 atomic % of oxygen, and 0 to 10 atomic % of a metal or semiconductor. These constituents are uniformly ... | 03/19/1991 |
| 5001452 | Semiconducting diamond and process for producing the same A semiconducting diamond which contains diamond carbon and at least one dopant element selected from the group consisting of S, Se, and Cl, and a process for producing the same.... | 03/19/1991 |
| 5001453 | Humidity sensor A humidity sensor including an insulating substrate, a pair of electrodes formed on the insulating substrate, and a porous silica film with carbon particles dispersed therein is formed over the insulating substrate and electrodes. A silica film may be for... | 03/19/1991 |
| 4998090 | Engine ignition cable for preventing unwanted interference due to high frequency noise An engine ignition cable in which carbon fiber is mixed with conductive rubber or synthetic resin, to provide a conductive portion in which the resistance value is readily adjusted. The conductive element of the cable is made of carbon fiber of polyacrylo... | 03/05/1991 |
| 4998088 | Variable resistor and manufacturing method for the same A variable resistor and a method for manufacturing the same is disclosed in which the variable resistor includes a casing having a bottom wall and a plurality of sidewalls extending from the bottom wall to define an opening of the casing. An insulating su... | 03/05/1991 |
| 4996512 | Overvoltage resistor and method for its manufacture An overvoltage resistor formed in the substrate semiconductor material of an integrated circuit. The overvoltage resistor is formed from a resistive layer formed over a well of a semiconductor material having a conductivity type which is opposite to the c... | 02/26/1991 |
| 4996511 | Pressure-sensitive resistance element A pressure-sensitive resistance element comprising a first contact electrode formed on a first electrically insulating base plate, a second contact electrode formed on a second electrically insulating base plate disposed facing the first contact electrode... | 02/26/1991 |
| 4996510 | Metal oxide varistors and methods therefor A varistor comprises a primary varistor metal oxide, aluminum in an amount of about 1 to about 30 parts per million (ppm), about 0.1 to about 0.5 mole % bismuth, about 0.1 to about 1.5 mole % antimony, about 0.1 to about 1 mole % chromium, about 0.1 to ab... | 02/26/1991 |
| 4994781 | Pressure sensing transducer employing piezoresistive elements on sapphire A piezoresistive pressure transducer employing a sapphire force collector diaphragm having piezoresistive films of silicon epitaxially formed on a major surface thereof, preferably in a Wheatstone bridge pattern. The silicon piezoresistive film is prefera... | 02/19/1991 |
| 4994782 | Variable resistor A variable resistor comprising a substrate provided on the surface thereof with a resistor on which a sliding member is in slidable contact therewith. The substrate is formed of diallyl phthalic resin, and a carbon resistor formed with a predetermined sha... | 02/19/1991 |
| 4994783 | Electronic device fabrication on non-conductive polymer substrate A process for fabricating an electronic device on a non-conductive polymer substrate, particularly from the family of polyaniline, comprises applying a covalent doping agent, such as an R+ donor compound, where R is an organic group, e.g., meth... | 02/19/1991 |
| 4992771 | Chip resistor and method of manufacturing a chip resistor A chip resistor having a cuboid resistor body 1 of a ceramic material and solderable, metal current-supply strips 8 and 9 at a first pair of opposite side faces of the resistor body, can readily and accurately be manufactured so that it has a small resist... | 02/12/1991 |
| 4988970 | Semiconductor for a resistive gas sensor having a high response speed Semiconductors for resistive gas sensors or resistive semiconductor gas sensors with high speed of reaction are disclosed. These semiconductors are appropriate to measure the partial pressure of oxygen and reducing gases in any predetermined measurement r... | 01/29/1991 |
| 4983810 | Heating unit with thermochromic region A heating unit includes a heatable surface. At least a region of the heatable surface is coated or otherwise provided with a layer incorporating a thermochromic material in sufficient quantity to influence the perceived color of the layer. The thermochrom... | 01/08/1991 |
| 4983944 | Organic positive temperature coefficient thermistor An organic positive temperature coefficient thermistor in which a plurality of spaced, substantially parallel conductive portions extend between first and second opposed side edges of a sheet made of a material, exhibiting a positive temperature character... | 01/08/1991 |
| 4983946 | Variable resistor with switching mechanism A variable resistor having a switching function includes a base plate, a first electrode formed on the base plate, a second electrode formed on the base plate, a third electrode formed on the base plate, and a fourth electrode formed on the base plate sim... | 01/08/1991 |
| 4983814 | Fibrous heating element A fibrous heating element having an electrical resistance of 1 to 100 Ω/m is prepared by coating a core fiber, preferably a yarn, with one or more electroconductive layers consisting of a polyurethane resin having carbon particles dispersed therein. The ... | 01/08/1991 |
| 4978938 | Magnetoresistor A magnetoresistive sensor that includes a very thin film of monocrystalline semiconductive material, having at least a moderate carrier mobility and no greater than a moderate carrier density. The device includes means for inducing or enhancing an accumul... | 12/18/1990 |
| 4978939 | Settable resistor A settable resistor has a resistance path array (4) to which is allocated a contact piece (9) which is guidable in the longitudinal direction (13) over the resistance path array and has an adjusting device for the position of the contact piece. In order n... | 12/18/1990 |
| 4977387 | Adjusting potentiometer for electronic circuits, process for assembling the elements thereof and process for obtaining the resistive plate thereof A potentiometer has a parallelepiped casing provided with recesses for fitting connecting terminals which are secured to the casing by plastically deformed studs projecting outward from the casing. Slots are formed in the casing so that the ends of the te... | 12/11/1990 |
| 4975674 | Surge absorber In contrast to a conventional surge absorber in which external terminals (4a), (4b) are led from disshaped electrode plates (3a), (3b) soldered to the surfaces of electrodes (2) on a varistor element (1), a surge absorber of the present invention has a va... | 12/04/1990 |
| 4975677 | Guided variable resistor A variable resistor including a resistive element and a conductive element supported by a plate. Contacting terminals are provided on one or more ends of each element. A carriage is slidably supported above the elements and a conductive roller is supporte... | 12/04/1990 |
| 4975676 | Glass membrane touch-controlled circuit apparatus for voltage selection A glass membrane touch-controlled circuit apparatus for voltage selection. The apparatus has a flexible glass membrane which is spaced by a dielectric layer adhesively joined between the upper flexible glass membrane and a lower, rigid support layer. Cond... | 12/04/1990 |
| 4975563 | Heating devices A heating panel includes an electrical heating element fully embedded in a base of refractory material, the element being embedded in a region of high thermal conductivity refractory material integrally backed by low thermal conductivity refractory materi... | 12/04/1990 |
| 4975675 | Device comprising at least one magneto-resistor contained in a housing A device including at least one magnetoresistor for sensing the position of a ferromagnetic part which moves past the magnetoresistor. The magnetoresistor is influenced by a permanent magnet which is mounted near the magnetoresistor in a housing which con... | 12/04/1990 |
| 4973936 | Thermal switch disc for short circuit protection of batteries A protective device for one battery or serially arranged battery cells is adapted to fit between one battery and its terminal connector or between adjacent battery cells. The device incorporates a disk of positive temperature coefficient material having a... | 11/27/1990 |
| 4973938 | Signal level adjuster A signal level adjuster has a first variable resistor and a second variable resistor. The first variable resistor is inserted in a signal line, and the resistance thereof is variable by a motor. The second resistor is mechanically interlinked to a control... | 11/27/1990 |
