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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8114340 | Method of forming anode bodies for solid state capacitors The present invention relates to the field of solid state capacitors, and in particular to capacitors that have an anode body formed of porous valve action material, such as tantalum, niobium or niobium monoxide. According to one aspect of the present invention, the... | 02/14/2012 |
| 7722804 | Method of manufacturing a pressed scandate dispenser cathode In a method of manufacturing a pressed scandate dispenser cathode, firstly, scandium nitrate, barium nitrate, calcium nitrate, aluminum nitrate and ammonium metatungstate (AMT) are dissolved in de-ionized water, respectively, and then mixed with a solution of a cros... | 05/25/2010 |
| 7337940 | Apparatus and method for friction stir welding of high strength materials, and articles made therefrom An apparatus for friction stir welding, a weld tool for friction stir welding, and a method for making a weld tool for friction stir welding are presented. The weld tool comprises doped tungsten. A method for manufacturing an article, where the method comprises prov... | 03/04/2008 |
| 7186288 | Method for fabricating high purity, high density metal matrix composite materials and the product thereof A method of production of large Ingots of neutron attenuating composites using a vacuum-bellows system allows for large cross-sectional shapes to be extruded and rolled. This method uses a vacuum-bellows technology which allows the manufacturing of large 8–16 inch... | 03/06/2007 |
| 7147686 | Rare earth magnet, method for manufacturing the same, and motor using rare earth magnet A rare earth magnet comprises rare earth magnet particles and a rare earth oxide being present between the rare earth magnet particles. The rare earth oxide is represented by a following general formula (I): R2O3 (I) | 12/12/2006 |
| 7144642 | Permanent magnet and method for preparation thereof A ferrite magnet obtained by adding a ferrite having a hexagonal W-type magnetoplumbite structure to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the... | 12/05/2006 |
| 7105235 | Isotropic zero CTE reinforced composite materials A reinforced composite material, having isotropic thermal expansion properties and a low coefficient of thermal expansion over at least the temperature range of from about 0° C. to at least about 150° C., which composite material comprises in combination a first c... | 09/12/2006 |
| 7037463 | Method for producing a titanium-base alloy having an oxide dispersion therein A metallic article is prepared by first furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively containing the constituent elements of the metallic article in their respective constituent-element propor... | 05/02/2006 |
| 7001570 | Metal-made seamless pipe and process for production thereof A metal-made seamless pipe is provided, containing at least one metal selected from the group consisting of metals each having a melting point of 1,600° C. or more, and has a porosity of 0.3 to 25%. The porosity is defined as a ratio of the open pores present at th... | 02/21/2006 |
| 6991686 | Method for producing magnetostrictive material To provide a method for producing a magnetostrictive material of excellent magnetostrictive characteristics. The method for producing a magnetostrictive material, wherein a mixture composed of Starting Materials A, B and C is sintered, where A is represented ... | 01/31/2006 |
| 6984271 | Rare earth magnet, process for producing same, and motor using rare earth magnet A rare earth magnet to be used in a motor. The rare earth magnet comprises rare earth magnet particles. Additionally, a rare earth oxide is present among the rare earth magnet particles, the rare earth oxide being represented by the following general formula (I): | 01/10/2006 |
| 6909185 | Composite material including copper and cuprous oxide and application thereof A composite material is provided, which has a low thermal expansivity, a high thermal conductivity, and a good plastic workability, which composite material may be applied to semiconductor devices and many other uses. The composite material is composed of metal and ... | 06/21/2005 |
| 6746545 | Preparation of rare earth permanent magnets An R—Fe—B permanent magnet wherein R is Nd or a combination of Nd with a rare earth element is prepared by casting an R—Fe—B alloy, crushing the alloy in an oxygen-free atmosphere of argon, nitrogen or vacuum, effecting comminution, compaction, sintering, ag... | 06/08/2004 |
| 6648984 | Rare earth magnet and method for manufacturing the same A compact is produced from an alloy powder for R--Fe--B type rare earth magnets including particles having a size in a range of about 2.0 μm to about 5.0 μm as measured by a light scattering method using a Fraunhofer forward scattering in a proportion o... | 11/18/2003 |
| 6554984 | Method of manufacturing a gas sensor A method of manufacturing a gas sensor, including a substrate electrode layer forming step, and a surface electrode layer forming step. The gas sensor includes first and second processing spaces, an oxygen concentration detection element, an oxygen pumpin... | 04/29/2003 |
| 6551371 | Titanium-based composite material, method for producing the same and engine valve A titanium-based composite material according to the present invention is characterized in that it comprises: a matrix containing a titanium (Ti) alloy as a major component, and titanium compound particles and/or rare-earth element compound particles disp... | 04/22/2003 |
| 6368376 | Process for making oxide dispersion-strengthened tungsten heavy alloy by mechanical alloying Disclosed is a process for making an oxide dispersion-strengthened tungsten heavy alloy by mechanical alloying that includes the steps of: adding 0.1 to 5 wt. % of Y2 O3 powder to a mixed powder comprising more than 90 wt. % of tungs... | 04/09/2002 |
| 6328817 | Powder for permanent magnet, method for its production and anisotropic permanent magnet made using said powder There is provided a powder for permanent magnet comprising needle-like fine particles of Fe or Fe--Co alloy as a base material, a hard magnetic layer and a separation layer of an oxide of rare earth element provided outside said hard magnetic layer.... | 12/11/2001 |
| 6270547 | Hydrogen absorbing alloy electrode and process for fabricating same A hydrogen absorbing alloy electrode characterized in that the electrode consists mainly of a mixture of a first hydrogen absorbing alloy powder A formed on surfaces of particles thereof with a surface layer 22 containing metallic copper or a copper oxide... | 08/07/2001 |
| 6238454 | Isotropic carbon/copper composites Heat-dissipating microcircuit substrate, having coefficients of thermal expansion adjusted to match the materials of the microcircuit mounted thereupon, are manufactured by powder metallurgy using carbides resulting from the combination of various types o... | 05/29/2001 |
| 6218025 | Sintering electrode A sintered electrode of high-melting metal (for example tungsten) is produced from spherical metal powder having a well defined particle size. The mean particle size is from 5 to 70 μm. The particle size distribution covers a range from at most 20% below... | 04/17/2001 |
| 6150048 | Metallic interconnection material for solid oxide fuel cell and method for preparing the same Disclosed are a metallic interconnection material for solid oxide fuel cells and a preparation method thereof. The metallic interconnection material has two fine microstructural phases in which 5-25% by volume of LaCrO3 is dispersed at the grai... | 11/21/2000 |
| 6132676 | Minimal thermal expansion, high thermal conductivity metal-ceramic matrix composite The invention provides techniques for forming composites including XW2 O8, where X=Zr, Hf, or a combination, dispersed within a continuous, metal matrix. A low to zero coefficient of thermal expansion material, with high thermal and ... | 10/17/2000 |
| 5989491 | Oxide dispersion strengthened heat resisting powder metallurgy alloy and process for producing the same A process for producing an oxide dispersion strengthened heat resisting powder metallurgy alloy, characterized in that (1) zirconium and/or a rare earth element, such as yttrium, cerium, or lanthanum, are previously added as an oxide former element to a m... | 11/23/1999 |
| 5937264 | Electrode structure for solid state electrochemical devices A composite oxygen electrode/electrolyte structure for a solid state electrochemical device having a porous composite electrode in contact with a dense electrolyte membrane, which electrode includes: (a) a porous structure having interpenetrating networks... | 08/10/1999 |
| 5915160 | High strength gold wire for microelectronics miniaturization and method of making the same High strength gold wire for use in microelectronics and a method of producing the same are disclosed. In the methods of the present invention, a gold alloy having gold and a dilute rare earth (RE) element is produced. Next, the gold alloy is atomized into... | 06/22/1999 |
| 5881355 | Fabrication method of cathode member and electronic tube equipped therewith A method of fabricating a cathode member or pellet is provided, which realizes the sufficiently large increase of the electron emission capability by the current activation process and that prevents the maximum cathode current from being lowered as long a... | 03/09/1999 |
| 5868876 | High-strength, creep-resistant molybdenum alloy and process for producing the same A wet-doping process for producing an oxide-dispersion strengthened (ODS), creep-resistant molybdenum alloy is disclosed. The alloy is made by adding nitrate or acetate salts of lanthanum, cerium, thorium, or yttrium to molybdenum oxide to produce a slurr... | 02/09/1999 |
| 5815791 | Structural element with brazed-on foil made of oxide dispersion-Strengthened sintered iron alloy and process for the manufacture thereof A process for manufacturing a structural element with brazed-on, bent or folded metal foil components having a foil thickness of less than 500 μm, made of an ODS sintered ferrous material. The sintered material is manufactured by mechanically alloying th... | 09/29/1998 |
| 5796019 | Method of manufacturing an electrically conductive cermet A method of manufacturing an electrically conductive cermet that includes less than 35% by volume of a precious metal by mixing a powdered refractory ceramic with the powdered metal, molding the mixture into a green, and sintering the green to create a ce... | 08/18/1998 |
| 5774780 | Process for production of a shaped part A process for the production of a shaped part which is produced from a high-melting point metal powder with crystalline sinter-activating additives. The process includes the steps of preparing, compressing and sintering the metal powder. Prior to the sint... | 06/30/1998 |
| 5742891 | Tungsten-lanthana alloy wire for a vibration resistant lamp filament A wire for fabrication of a vibration resistant filament for an incandescent lamp. The wire includes about 0.05-1.00 weight percent lanthanum oxide dispersed in a tungsten matrix and has a microstructure including stringers of fine particles of lanthanum ... | 04/21/1998 |
| 5695544 | Silicon nitride based sintered product A silicon nitride based sintered product having strength at a high temperature is obtained by sintering a mixture. The mixture comprises a silicon powder or a mixture powder of silicon and silicon nitride added a sintering assistant powder, a compound pow... | 12/09/1997 |
| 5624542 | Enhancement of mechanical properties of ceramic membranes and solid electrolytes Enhancement of mechanical properties of ceramic membranes by introduction of a uniformly distributed high-temperature oxidation-resistant metal phase into the brittle ceramic phase to achieve mechanically strong ceramic/metal composites operable in an oxi... | 04/29/1997 |
| 5623725 | Process for producing very pure platinum materials, semi-finished parts and foils dispersion-reinforced with Y203 Process for producing very pure platinum materials dispersion-reinforced with Y2 O3 and having high strength and extensibility, even in the temperature range >800° C., from platinum powder by mechanical alloying, which comprises the... | 04/22/1997 |
| 5590386 | Method of making an alloy of tungsten and lanthana In a method of making alloy of tungsten and lanthana, lanthanum hydroxide is blended with tungsten metal powder, the mixture is pressed to form a pressed ingot, optionally presintered, and sintered to form the alloy. The use of lanthanum hydroxide as the ... | 12/31/1996 |
| 5574957 | Method of encasing a structure in metal An improved method is disclosed for encasing an object in a shell or layer of outer material. The encased object and the outer material are formed from sinterable metal or ceramic particulate material. Both the object to be encased and the shell or encase... | 11/12/1996 |
| 5480728 | Low resistance electrical contact for oxide superconductors and a method for making A conductive contact for use with metal oxide superconductors is described. The conductive contact comprises a metal contact which is attached by a diffusion bonding means to a superconductive metal oxide substrate. In a preferred embodiment, diffusion bo... | 01/02/1996 |
| 5460640 | Alumina-rare earth oxide ceramic-metal bodies A fully dense ceramic-metal body including 40-88 v/o of an oxide hard phase of, in v/o of the body, 4-88 v/o M-aluminum binary oxides, where the binary oxide has a C-type rare earth, garnet, ଲ-MAl11 O18, or perovskite crystal s... | 10/24/1995 |
| 5455225 | Method of producing a metal superconductive ceramic connection A method of producing a high-performance connection between a metal and a solid superconductive ceramic member is effected by introducing into a mold, in juxtaposition, grains or powder of the ceramic or of its precursors and a volume of silver or gold po... | 10/03/1995 |
