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| Number | Title | Issue Date |
| 7413721 | Method for forming ammonia A method for forming ammonia is disclosed and which includes the steps of forming a plasma; providing a source of metal particles, and supplying the metal particles to the plasma to form metal nitride particles; and providing a substance, and reacting the metal nitr... | 08/19/2008 |
| 6632379 | Oxynitride phosphor activated by a rare earth element, and sialon type phosphor A sialon type phosphor in the form of a powder comprising at least 40 wt % of -sialon represented by the formula (Cax,My)(Si,Al)12 (O,N)16 (where M is at least one metal selected from the group consisting... | 10/14/2003 |
| 6589448 | Ceramic ball for bearing and ceramic ball bearing using the same A ceramic bearing ball in which at least a portion of a constituent ceramic is formed of an electrically conductive inorganic compound phase, whereby a proper electrical conductivity is imparted to the ceramic. Thus, electrifying of a bearing ball is prev... | 07/08/2003 |
| 6468486 | Process for treating exhaust gases containing nitrides An exhaust gas containing nitrides is treated by a process comprising: passing the exhaust gas containing nitrides through a microbe carrier packed layer while cyclically spraying circulating water onto the packed layer, thereby forming a water containing ammo... | 10/22/2002 |
| 6379449 | Process for the production of yellow to red pigments based on nitrides and oxidenitrides Nitride or oxidenitride based red to yellow pigments, such as tantalum(V) nitride and oxidenitrides containing tantalum may be produced by passing ammonia over nitridable metal compounds, in particular oxide compounds, at 700 to 1250° C. According to the... | 04/30/2002 |
| 5382554 | High-packing silicon nitride powder and method for making High-packing silicon nitride powder having a tap density of at least about 0.9 g/cm3 is prepared by reacting a metallic silicon powder having a mean particle size of about 1 to 10 μm, a BET specific surface area of about 1 to 5 m2 /... | 01/17/1995 |
| 5344635 | Filler for heat-conductive plastics materials A powder mixture of aluminium nitride in the form of sintered agglomerates with fractions of different particle size, which mixture comprises (1) 80 to 50% by weight of aluminium nitride in the form of sintered agglomerates having a mean particle diameter... | 09/06/1994 |
| 5200372 | Method for production of high-pressure phase sintered article of boron nitride for use in cutting tool and sintered article produced by the method A sintered article is produced by mixing an intermetallic compound (binding phase) composed of at least one member selected from among carbides, nitrides, and borides of the elements of Groups 4a, 5a, and 6a in the Periodic Table of Elements and at least ... | 04/06/1993 |
| 5166106 | Silicon-containing material having at least one densification aid including alumina A process for preparing a nitridable silicon-containing material, which process includes (a) comminuting a slurry of silicon powder, water, at least one densification aid, including Al2 O3, and another densification aid, the comminut... | 11/24/1992 |
| 5120686 | Method of preparing a polysilazane A method of preparing an organosilazane including reacting a first halosilane having the formula RR1 SiX2, wherein X is F, Cl, Br, or I, and each R and R1, independently, is X, H, or a lower alkyl group; a first primary am... | 06/09/1992 |
| 5110772 | Fabrication of dense SI3 N4 ceramics using CaO-TiO2 SiO.sub. 2 Ternary CaO-TiO2 -SiO2 compositions are discussed. These compositions are useful as sintering aids for silicon nitride sintering. Use of these ternary compositions allows silicon nitride to be effectively sintered at lower temperatur... | 05/05/1992 |
| 5079198 | Ceramic phase in sintered silicon nitride containing cerium, aluminum, and iron A body of sintered silicon nitride contains new non-glassy phases which produce significant X-ray diffraction peaks at 2-theta diffraction angles corresponding to d-spacings of about 2.86 Angstroms and 3.59 Angstroms and process for making same, which pro... | 01/07/1992 |
| 5055431 | Polysilazanes and related compositions, processes and uses Silazanes and related compounds are prepared by providing a precursor containing one or more cyclic silazane units, causing polymerization to occur in the presence of a transition metal catalyst to form a polysilazane product. Further products may result ... | 10/08/1991 |
| 5055432 | Process for preparing a nitridable silicon-containing material having at least one densification aid including alumina, and the material resulting therefrom A process for preparing a nitridable silicon-containing material, which process includes (a) comminuting a slurry of silicon powder, water, at least one densification aid, including Al2 O3, and another densification aid, the comminut... | 10/08/1991 |
| 4434142 | Method for treatment of aluminum dross oxides There is disclosed a method for the treatment of aluminum dross oxides which contain aluminum metal, aluminum carbide, aluminum nitride and salts such as potassium and sodium chloride. The method comprises the thermal treatment of an aqueous suspension of... | 02/28/1984 |
| 4416952 | Oxynitride film and its manufacturing method The oxynitride film according to the present invention contains Ga and/or Al and has O/N ratio of at least 0.15. This film is obtained by relying on, for example, chemical vapor deposition technique. The O/N ratio in the film may be varied by, for example... | 11/22/1983 |
