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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 |
| 8134275 | High efficiency 4-π negatron β-3 particle emission source fabrication and its use as an electrode in a self-charged high-voltage capacitor The present invention is directed to an encapsulated β− particle emitter that comprises a sol-gel derived core that comprises a β−-emitting radioisotope and an encapsulant enclosing the core through which at least some of the β− | 03/13/2012 |
| 7939986 | Betavoltaic cell High aspect ratio micromachined structures in semiconductors are used to improve power density in Betavoltaic cells by providing large surface areas in a small volume. A radioactive beta-emitting material may be placed within gaps between the structures to provide f... | 05/10/2011 |
| 7663288 | Betavoltaic cell High aspect ratio micromachined structures in semiconductors are used to improve power density in Betavoltaic cells by providing large surface areas in a small volume. A radioactive beta-emitting material may be placed within gaps between the structures to provide f... | 02/16/2010 |
| 7301254 | High efficiency radio isotope energy converters using both charge and kinetic energy of emitted particles An electrical energy generator with improved efficiency has a base on which is mounted an elastically deformable micromechanical element that has a section that is free to be displaced toward the base. An absorber of radioactively emitted particles is formed on the ... | 11/27/2007 |
| 7250323 | Methods of making energy conversion devices with a substantially contiguous depletion regions A method of making an energy conversion device includes forming a plurality of pores within a substrate and forming a junction region within each of the plurality of pores. Each of the junction regions has a depletion region and each of the plurality of pores define... | 07/31/2007 |
| 7230321 | Integrated circuit package with laminated power cell having coplanar electrode An electrode that includes an electrically conductive, substantially planar body having a first thickness and a junction area, wherein the junction area is configured to receive a solid state power cell having a second thickness. The electrode also includes an arcua... | 06/12/2007 |
| 7045702 | Solar-paneled windmill A solar-paneled windmill is provided having aerodynamic fan blades provided with solar panels. The windmill produces electricity using wind energy and solar energy. In another embodiment, magnets are provided to the solar-paneled windmill fan blades to generate magn... | 05/16/2006 |
| 6998692 | IC package with an integrated power source A radioactive power source resident in an IC package is provided. The power source is a stand-alone device, fabricated separately from the IC or other device that is eventually attached to the package. The power source may be attached to the packaging substrate or t... | 02/14/2006 |
| 6949865 | Apparatus and method for generating electrical current from the nuclear decay process of a radioactive material An apparatus and method for generating electrical power from the decay process of a radioactive material is disclosed, wherein a volume of radioactive material and a junction region are enclosed in a cell. The junction region is formed by appropriate construction of... | 09/27/2005 |
| 6933655 | Self-powered wireless switch A wireless switch is provided having a twenty-year life energy harvesting arrangement for self-powering a wireless transmitter. The energy harvesting arrangement is implemented in one embodiment using a piezoelectric switch element. A tritium light source and photov... | 08/23/2005 |
| 6911711 | Micro-power source A micro-power generator, comprises an electrically insulating substrate; a semiconductor layer affixed to the substrate; electrodes affixed to the semiconductor layer for collecting electrical charges emitted by a radioisotope source; a radio-isotope source interpos... | 06/28/2005 |
| 6888059 | Photothermal power generation device and method A photothermal power generation device designed to heat an emitter receives a supply of fuel and air, burns the fuel to produce combustion gas, and converts light emitted from the emitter into electric power by means of a photoelectric conversion element. The device... | 05/03/2005 |
| 6884934 | Solar-battery array, and photovoltaic power generation system A solar-battery array comprising a plurality of solar batteries, which is characterized by satisfying the relationship of V20, where V1 is the voltage to ground of the positive-pole terminal at the time of max... | 04/26/2005 |
| 6831221 | System and method for power generation A method for powering a vehicle comprises, in one embodiment, receiving infrared radiation emitted as heat from a roadway surface, and converting energy of the infrared radiation to a form of energy that is useful for providing power to the vehicle. In another embod... | 12/14/2004 |
| 6774531 | Apparatus and method for generating electrical current from the nuclear decay process of a radioactive material An apparatus and method for generating electrical power from the decay process of a radioactive material is disclosed, wherein a volume of radioactive material and a junction region are enclosed in a cell. The junction region is formed by appropriate construction of... | 08/10/2004 |
| 6774299 | Solar electric alternating current generator A device consisting of solar photovoltaic cells, a solar activated dc motor, contact brushes and wiring to transfer the electric current to the applied load. The cells are mounted on vanes attached to a central shaft that is made to rotate by the dc motor. The elect... | 08/10/2004 |
| 6753469 | Very high efficiency, miniaturized, long-lived alpha particle power source using diamond devices for extreme space environments A power source converts α-particle energy into electricity by coulomb collision in doped diamond films. Alpha particle decay from curium-244 creates electron-hole pairs by freeing electrons and holes inside the crystal lattice in N- and P-doped diamond films. Ohmic... | 06/22/2004 |
| 6713937 | Minitab rectifier for alternators A diode for use in an under-the-hood automotive application has a TO 220 outline and consists of a diode die on a two piece lead frame which has a thick section to which the bottom of the die is soldered, and a thinner section which extends through a plastic housing... | 03/30/2004 |
| 6686534 | Small-scaled portable electrical power generator The present invention provides a small-scaled portable electrical power generator comprising a base, which includes an assembly surface, a fuel chamber, and at least one fuel delivery channels connected to the fuel chamber and placed under the assembly su... | 02/03/2004 |
| 6635818 | Wireless power supply method There is provided a wireless-type power supply method that is applied to the case where an object to which energy is to be transmitted is relatively small, such as a micromachine, and that allows high-voltage electrical energy to be transmitted without us... | 10/21/2003 |
| 6483094 | Solid state optical shutter A solid-state optoelectronic shutter having an input and an output, comprising a semiconductor material, having formed therein or thereon: a planar photodiode (24), having a planar surface, and optically communicating with the input; a planar LED layer (2... | 11/19/2002 |
| 6479919 | Beta cell device using icosahedral boride compounds A beta cell for converting beta-particle energies into electrical energy having a semiconductor junction that incorporates an icosahedral boride compound selected from B12 As2, B12 P2, elemental boron having an ... | 11/12/2002 |
| 6479743 | Photon power cell A photon power cell has at least one photo-electric cell (10), one or more layers of filter glass (15) and a radioactive-energised fluorescent material (20) which produces photons that are converted into electrical energy by the photo-electric cell (10). ... | 11/12/2002 |
| 6238812 | Isotopic semiconductor batteries A semiconducter battery that utilizes radioactive decay processes to produce electrical power by direct electrical current generation from these decay products. These batteries have extremely long half-lives. Each decay can produce on the order of 1,500,0... | 05/29/2001 |
| 6118204 | Layered metal foil semiconductor power device The present invention is a power cell for directly converting ionizing radiation into electrical energy. The invented isotopic electric converter provides an electrical power source that includes an electronegative material layered in a semiconductor, to ... | 09/12/2000 |
| 5859484 | Radioisotope-powered semiconductor battery A radioisotope-powered semiconductor battery comprises a substrate of a crystalline semiconductor material, the material having at least one degree of confinement, and a radioactive power source comprising at least one radioactive element. The power sourc... | 01/12/1999 |
| 5721462 | Nuclear battery A nuclear battery for supplying low level electrical energy for a relatively long period of time. The battery includes a low-energy beta emitter and phosphor dispersed sufficient proximate the beta emitter to capture the low energy betas before decay. A p... | 02/24/1998 |
| 5642014 | Self-powered device The invention provides a self-powered device having at least one substrate, at least one radioactive power source formed over the substrate, and integrated circuits formed over the substrate. The radioactive power source includes a first active layer of a... | 06/24/1997 |
| 5607519 | Photon and/or electron generating power cell An impermeable, stainless steel, high chrome content container, with an inside surface coating of photo-voltaic elements comprising PN junctions upon which photons and/or electrons are impinged for conversion to electrons to produce useful electric energy... | 03/04/1997 |
| 5606213 | Nuclear batteries A nuclear battery is provided by the incorporation through chemical bonding of radioactive tritium in a body of amorphous semiconductor material having a p-type conductivity region, an n-type conductivity region and a semiconductor junction therebetween, ... | 02/25/1997 |
| 5605171 | Porous silicon with embedded tritium as a stand-alone prime power source for optoelectronic applications An illumination source comprising a porous silicon having a source of electrons on the surface and/or interticies thereof having a total porosity in the range of from about 50 v/o to about 90 v/o. Also disclosed are a tritiated porous silicon and a photov... | 02/25/1997 |
| 5510665 | Optoelectronic active circuit element An optoelectronic active circuit element is created by the combination of a light source, an optical control filter and a photocell intimately coupled together. The light source has at least one light emitting surface emitting light energy of a specified ... | 04/23/1996 |
| 5443657 | Power source using a photovoltaic array and self-luminous microspheres A power source comprises at least one photovoltaic cell arranged adjacent a plurality of self-luminous microspheres containing a radioactive material such as tritium and phosphor particles. Photons generated from the phosphor particles strike the photovol... | 08/22/1995 |
| 5440187 | Long life radioisotope-powered, voltaic-junction battery using radiation resistant materials An electric battery comprises: a nuclear source of relatively high energy radiation fluence; a semiconductor junction characterized by a curve for this fluence relating minority carrier diffusion length and a damage constant and; an enclosure having a suf... | 08/08/1995 |
| 5406195 | Phase-to-phase voltage monitor for three-phase power distribution system A voltage monitoring device for a three-phase ungrounded delta-connected power system utilizes liquid crystal optical shutter devices capacitively coupled between phases of the system such that the combined light transparency of the optical shutter device... | 04/11/1995 |
| 5396141 | Radioisotope power cells An electrical power source or power cell (10) includes a semiconductor material (12) having an N region (14), a P region (16) and a P-N junction (18). A radioactive source (24) associates with P-N junction (18) and emits energy or radioactive particles (2... | 03/07/1995 |
| 5260621 | High energy density nuclide-emitter, voltaic-junction battery An electric battery comprises a semiconductor junction incorporating an inorganic crystalline compound of Group III and Group V elements of the Periodic Table characterized by a predetermined annealing temperature for defects therein; a nuclear source of ... | 11/09/1993 |
| 5235232 | Adjustable-output electrical energy source using light-emitting polymer A long-life, electrical energy source having an adjustable output is comprised of a light emitting phosphor activated by a radioisotope and coupled to a plurality of photovoltalic cells that have their outputs electrically connected together. The output p... | 08/10/1993 |
| 5124610 | Tritiated light emitting polymer electrical energy source An electrical energy source is created by the combination of a light emitting polymer material having at least one light emitting surface emitting light energy of a specified frequency bandwidth and a photovoltaic cell having a light collecting surface an... | 06/23/1992 |
| 5082505 | Self-sustaining power module A self-sustaining power module (10) that combines the technologies of radioactivity with photovoltaic cells (12) to produce an electrical power supply having a useful life of over ten years. The radioactive source is a tritium capsule (22) that interfaces... | 01/21/1992 |
