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| Number | Title | Issue Date |
| 4957541 | Capacitor grade tantalum powder Tantalum powders of capacitor grade are provided, containing interacting silicon and phosphorous dopants to effect low D.C. leakage of electrolytic capacitors having anodes made from such powders, with anodic formation at low temperatures (40°-60° C.), ... | 09/18/1990 |
| 4945452 | Tantalum capacitor and method of making same A method of manufacturing a tantalum capacitor includes compacting tantalum powder about a tantalum anode rod in such manner than the tantalum powder in a region in registry with the tantalum rod is compacted to a density of from about 8 to 10 grams per c... | 07/31/1990 |
| 4907130 | Method for the fabrication of aluminium electrolytic capacitors, and capacitor with integrated anode obtained thereby A method for the fabrication of aluminium electrolytic capacitors with solid or gelled liquid electrolyte, as well as the capacitor obtained by this method are disclosed. The method comprising the following steps: the obtaining of a connections strip made of a... | 03/06/1990 |
| 4791532 | Capacitor anode and method A porous tantalum body is pressed with a cavity compacted locally, and a connection wire is joined to the tantalum body within the cavity.... | 12/13/1988 |
| 4764396 | Method for preventing aluminum corrosion in electronic parts A method for preventing aluminum corrosion in electronic parts which comprises adding lead hydroxy apatite and/or cadmium hydroxy apatite to constituents of the electronic parts through which halogen ions pass, so that said ions may be captured by said ap... | 08/16/1988 |
| 4763229 | Aluminum capacitor plate for electrolytic capacitor and process for making the same An aluminum capacitor plate for use in an electrolytic capacitor, the capacitor plate including a sponge-like layer in its surfacial portion, the layer including a plurality of projections projecting inward and outward, the projections individually having... | 08/09/1988 |
| 4761714 | Anode and capacitor and method therefor A porous tantalum anode body is sintered onto a strip having an incurvate member which is embedded in the body and an elongated portion of the strip which serves as the anode connection.... | 08/02/1988 |
| 4734827 | Tantalum capacitor lead wire A tantalum lead wire for capacitors having improved grain growth characteristics is disclosed. The lead preferably comprises a Niobium core having a surface consisting of many discrete layers of Tantalum surrounding the Niobium.... | 03/29/1988 |
| 4674009 | Tantalum capacitor lead wire A tantalum lead wire for capacitors having improved grain growth characteristics is disclosed. The lead preferably comprises a Niobium core having a surface consisting of many discrete layers of tantalum surrounding the Niobium.... | 06/16/1987 |
| 4646197 | Tantalum capacitor lead wire A tantalum lead wire for capacitors having improved grain growth characteristics is disclosed. The lead preferably comprises a Niobium core having a surface consisting of many discrete layers of Tantalum surrounding the Niobium.... | 02/24/1987 |
| 4603467 | Method of manufacturing chip-type aluminum electrolytic capacitor In a method of manufacturing a compact and light-weight chip-type aluminum electrolytic capacitor, thin external leads are welded to flat anode and cathode foils. The anode and cathode foils are superposed with an insulating spacer interposed therebetween... | 08/05/1986 |
| 4604260 | Method of producing electrolytic capacitor with Al-Ti anode body A solid electrolytic capacitor is made with an Aluminum-titanium body. Aluminum and titanium powders are press-molded into a body which is then heated sufficiently to provide a porous Al-Ti alloy with an oxide layer. Next, the body is heated in an atmosph... | 08/05/1986 |
| 4574333 | Low density tantalum anode bodies Tantalum anode bodies having a pressed-in nickel coated tantalum riser wire which provides increased bond strength and improved leakage characteristics.... | 03/04/1986 |
| 4520430 | Lead attachment for tantalum anode bodies Tantalum anode bodies having regions of different density with a lead attached to the region of higher density.... | 05/28/1985 |
| 4517727 | Method of producing a porous body for electrolytic capacitor having a lead wire A porous sintered body for an aluminum-titanium alloy electrolytic capacitor has a wire of nitrogenized titanium, or the like, implanted therein. A method of producing such a porous body subjects a titanium wire to a nitriding treatment, and embeds the ni... | 05/21/1985 |
| 4517626 | Solid electrolyte capacitor anode assembly A low capacitance solid electrolyte capacitor employs an anode assembly of a body portion which is a short piece of valve-metal wire to which is attached, preferably by welding, a riser portion which is of narrower cross-section wire than the body portion... | 05/14/1985 |
| 4474323 | Capacitors Connection to a tantalum capacitor electrode (17) is effected using a conductive paint layer (15), incorporating pure silver and pure copper particles, which minimizes silver leeching by a tincontaining solder alloy (18) by which the lead wire (17) is con... | 10/02/1984 |
| 4468719 | Porous body for a solid electrolytic capacitor and process for producing the same A porous body of Ti-Al alloy has a novel structure for a solid electrolytic capacitor, having improved values of leakage current and dielectric loss. The porous body of Ti-Al alloy has spherical particles which partially contact each other to form an inte... | 08/28/1984 |
| 4423004 | Treatment of tantalum powder Tantalum powder for electrolytic capacitors is treated with a non-aqueous solution of ammonium thiocyanate in N,N'-dimethylformamide or N-methylpyrrolidinone after the powder has been subjected to a thermal treatment in the absence of oxygen step and befo... | 12/27/1983 |
| 4344107 | Solid tantalum capacitor with clean riser The anode riser of a solid tantalum capacitor is cleaned by means of a laser beam which removes all coatings from the riser in the area of the weld between the riser and an external lead so as to leave no conducting path from the riser to the cathode.... | 08/10/1982 |
| 4214293 | Electrolytic capacitors A solid electrolytic capacitor has a porous anode body manufactured from a valve metal coated core by pressure compaction of the metal powder at 25 to 40 tons per square inch. No subsequent sintering is required by this process.... | 07/22/1980 |
| 4164066 | Fabrication of anodes by plasma spray deposition A method of forming capacitor anodes is described wherein leads of film forming metal, preferably headed are subjected to plasma spray deposition of film forming metal, preferably at a flame temperature of about 10,000° to 20,000° C. to form capacitor a... | 08/14/1979 |
| 4160284 | Capacitors and process for making same An improved capacitor, especially of the tantalum capacitor type, wherein a very small particle silver metal powder is impregnated into a porous metal anode member, say of tantalum. The resulting capacitor has a much reduced resistance in the non-dielectr... | 07/03/1979 |
| 4141719 | Tantalum metal powder Improved, high-purity agglomerated tantalum powders having an exceptional combination of a relatively low oxygen content, high green strength when pressed into compacts without using any binders, and, when compacted and sintered as anodes for capacitors h... | 02/27/1979 |
| 4090231 | Screen printed solid electrolytic capacitor A solid tantalum capacitor is made by screen printing on a tantalum substrate, a thick mixture of tantalum powder and a binder, sintering the printed layer, forming a dielectric oxide, and forming a counterelectrode. A large number of capacitors may be so... | 05/16/1978 |
| 4079441 | Anode electrode for an electrolytic capacitor An electrolytic capacitor utilizes tantalum coated alumina particles as anode material to provide better breakdown properties than pure tantalum particles at a substantial savings in tantalum materials cost. The coating of valve metal having an anodized p... | 03/14/1978 |
| 4041359 | Method of making an electrolytic capacitor and electrolytic capacitor made thereby A method for making an electrolytic capacitor. A valve metal powder of the sponge type is compressed into a compact body and other usual steps including anodization and electrode application are carried out thereon. Mainly due to the use of sponge type va... | 08/09/1977 |
| 3984208 | Anodes for solid electrolyte capacitors Improved sintered anodes for solid electrolytic capacitors are produced from a mixture of at least two powders the first being of pure film forming metal and the second of a film forming metal with addition of at least one of the elements : nitrogen, tung... | 10/05/1976 |
| 3970903 | Solid electrolytic capacitor with embedded counterelectrode A solid electrolyte tantalum capacitor comprises a porous tantalum body, a tantalum oxide film grown over the surfaces of the body, and an overlying coating of manganese dioxide wherein a conducting member is partially embedded. The conducting counterelec... | 07/20/1976 |
| 3949279 | Recessed anode with particulate metal deposit An anode assembly capable of performing an electrical function including support means of an electrically conducting, dense material. The support means has an enlarged portion and an elongated portion. The enlarged portion of the support means includes a ... | 04/06/1976 |
| 3934179 | Tantalum anode for electrolytic devices An anode for electrolytic devices formed from pressed and sintered compacts of an agglomerated refractory metal powder comprised of polynodal granules of adhered particles with the nodes being of a size the same order of magnitude as the size of the indiv... | 01/20/1976 |
