Celebrity Inventors
Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5962373 | Method for producing mixed metal oxide compounds A precursor is made from a plurality of materials having different vapor pressures. The precursor and a source material are placed in a closed heat treatment furnace. The source material is materials which are the same as some of the materials contained i... | 10/05/1999 |
| 5565414 | Substituted superconductive Bi-Sr-Ca-Cu oxide and Bi-Sr-Ca-Ln-Cu oxide compositions A metal oxide is provided which is represented by the compositional formula : (Bi1-x AIx)2 (Sry Ca1-y-z AIIz)p (Cu1-r AIIIr)... | 10/15/1996 |
| 5529979 | Oxide superconducting material and process for preparing the same Superconducting oxide material containing compound represented by the formula: (Tl.sub.(l-p-q) Bip Pbq)y γz (.sub.(l-r) ଲr)s Cuv Ow in which each of ""... | 06/25/1996 |
| 5523284 | Process for preparing a bulk textured superconductive material In accordance this invention, there is provided a process for making a bulk superconductive material. In the first step of this process, a diffusion couple is formed from superconductor oxide and impurity oxide. Thereafter, the diffusion couple is heated ... | 06/04/1996 |
| 5508252 | Bi oxide superconductors A substance which has a Cu--O plane containing crystal structure in its unit cell and which is called a Bi oxide superconductor consisting essentially of Bi, Sr, Ca, Cu, and O. Not only part of Bi but also part of Sr and/or Ca of the Bi oxide superconduct... | 04/16/1996 |
| 5506196 | Magnetic material having superconductive properties and a method of preparation of the same A super conducting material is disclosed which exhibits super conducting properties at higher temperatures than known so far. The super conducting by the invented materials is exhibited at temperatures of over 110° K. Various combinations of the componen... | 04/09/1996 |
| 5502029 | Laminated super conductor oxide with strontium, calcium, copper and at least one of thallium, lead, and bismuth Superconductors using oxide superconducting materials having pinning centers inside crystal grains are enhanced in transmissible critical current density and allowed to have a high critical current density even in the magnetic field. A superconductor is p... | 03/26/1996 |
| 5484766 | Preparation of Bi-Pb-Sr-Ca-Cu-O (2223) superconductors A method for synthesizing ultrahomogeneous nanoparticles of precursor powder by coprecipitation in a water and oil microemulsion is disclosed. The powder is compressed and sintered to prepare an essentially pure 2223 superconductor.... | 01/16/1996 |
| 5430008 | Method and composition for improving flux pinning and critical current in superconductors Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducti... | 07/04/1995 |
| 5413981 | Oxide superconductor and a method for manufacturing an oxide superconductor A method for manufacturing the oxide superconductor according to the present invention comprises the steps of: mixing a starting material including Bi, Sr, Ca and Cu such that a mole ratio of Bi, Sr, Ca and Cu is 2:2+a:1+b:2+c, wherein aࣙ0, bࣙ0, cࣙ0... | 05/09/1995 |
| 5371067 | Superconductive photoconductive substance of the Ba-Pb-Bi-O group system and a method for producing the same The disclosed oxide has a general chemical formula of Ba-Pb1-x -Bix -Oz, x being 0.35 to 1 and z being 2.7 to 3, and the oxide shows a potential superconductivity at a temperature below 14K and a photoconductivity at a tem... | 12/06/1994 |
| 5256260 | Method and apparatus for the electrodeposition of bismuth based materials and superconductors The electrodeposition of bismuth based materials and superconductors is achieved under isothermal, constant potential conditions using a three electrode, one compartment cell geometry operating at temperature below about 450° C.... | 10/26/1993 |
| 4942152 | Process for preparting a bismuth-type compound oxide superconductor A novel process for preparing superconductor of bismuth-containing compound oxide such as Bi--Sr--Ca--Cu system. In the present invention, firstly an intermediate compound oxide containing metal elements of the superconductor except bismuth is prepared and the... | 07/17/1990 |
| 4933317 | Bismuth oxide superconductors, and devices and systems comprising such a superconductor A new class of Bi-based superconductive oxides is disclosed. As do the previously known Bi-based superconductors, the novel materials have a perovskite-like crystal structure. However, in contradistinction to the prior art materials, the inventive materia... | 06/12/1990 |
