| Patent Number |
Title Of Patent |
Date Issued |
| 4948692 |
Combination toner and printer utilizing same |
August 14, 1990 |
| A combination toner for xerographic image formation having conductive portions and insulating portions is provided. The conductive portions function to accumulate a charge in the toner particles and the insulating portions function to lengthen the period of discharge of the accumulated |
| 4680048 |
Method of preparing doped silica glass |
July 14, 1987 |
| A sol-gel method of preparing doped glass articles is provided. The glass is formed by preparing a sol solution containing hydrolyzed silicon alkoxide and ultrafine particle silica. The sol solution can also include a dopant. The sol solution is gelled in a container, dried and sintered |
| 4680046 |
Method of preparing preforms for optical fibers |
July 14, 1987 |
| A method of preparing preforms for optical fibers is provided. The method includes preparation of a first sol solution of a silicon alkoxide hydrolyzed with an acid and ultrafine particle silica, placement of the first sol solution into a container, and gelation of the first sol solu |
| 4622056 |
Method of preparing silica glass |
November 11, 1986 |
| A method for preparing high quality silica glass articles is provided. The glass is prepared by hydrolyzing silicon alkoxide with a basic reagent to yield a first solution, hydrolyzing a silicon alkoxide with an acid reagent to yield a second solution, mixing the first solution with the |
