| |
 |
Miyuki Ohyama Patents |
|
Inventor: Ohyama; Miyuki
Address: Takefu, JP
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6716524 |
Rare earth borate and making method |
April 6, 2004 |
| A rare earth borate in the form of substantially spherical, uniform diameter particles having an average particle diameter of 0.5-2 .mu.m is prepared by mixing substantially spherical rare earth oxide co-precipitates having an average particle diameter of 0.5-2 .mu.m with boric acid |
| 6677262 |
Rare earth oxide, basic rare earth carbonate, making method, phosphor, and ceramic |
January 13, 2004 |
| A rare earth oxide in the form of substantially spherical particles having a Fisher diameter Df of 0.5 .mu.m<Df<2.0 .mu.m and a photomicrography particle diameter De of 0.5 .mu.m<De<2.0 .mu.m is prepared by heating and ripening an aqueous solution of water-soluble rare ea |
|
|
|
