Yoshio Ukyo
13Patents
8h-index
27Co-inventors
72Inventor score
Filing activity: Apr 7, 1989 → Jun 30, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5945369A | Catalyst for purifying exhaust gases and process for producing the same | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5958827A | Solid solution particle of oxides, a process for producing the same and a catalyst for purifying exhaust gases | Emerging Cross-Sectional Technologies | 33 | Expired |
| US7025907B2 | Carbon-containing lithium-iron composite phosphorus oxide for lithium secondary battery positive electrode active material and process for producing the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7189475B2 | Lithium secondary battery | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6306542A | Lithium manganese composite oxide for lithium secondary battery cathode active material, manufacturing method thereof, and lithium secondary battery using the composite oxide as cathode active material | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5618772A | Method for producing catalyst | Performing Operations; Transporting | 11 | Expired |
| US4978645A | Silicon nitride sintered body | Chemistry; Metallurgy | 10 | Expired |
| US5523268A | Silicon nitride sintered body | Chemistry; Metallurgy | 9 | Expired |
| US5120682A | Sintered body of silicon nitride | Chemistry; Metallurgy | 7 | Expired |
| US5081079A | Sintered body of silicon nitride and a process for making the same | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7675291B2 | Method and device for monitoring deterioration of battery | Physics | 3 | Expired |
| US8507130B2 | Water based lithium secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US7201999B2 | Secondary cell | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.