Tetsu Umeda
8Patents
3h-index
15Co-inventors
54Inventor score
Filing activity: Dec 2, 1992 → Jul 21, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6303091A | Metal oxide powder and method for the production of the same | Chemistry; Metallurgy | 9 | Expired |
| US5688480A | Complex metal oxide powder and method for the production of the same | Chemistry; Metallurgy | 9 | Expired |
| US5851649A | Inorganic porous sintered body and filter | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8384284B2 | Phosphors having high light emission luminescence | Electricity | 2 | Active |
| US5496513A | Preparation method of dense sintered bodies for solid electrolytes | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10906816B2 | Alumina and method for producing automotive catalyst using same | Chemistry; Metallurgy | 0 | Active |
| US8017039B2 | Fluorescent body for use in a near-ultraviolet excitation light-emitting element | Electricity | 0 | Active |
| US8084014B2 | Barium titanate powder and method for producing same | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.