Kazuhiro Yagishita
29Patents
5h-index
32Co-inventors
69Inventor score
Filing activity: Oct 23, 1996 → Mar 8, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6656887B2 | Lubricating oil compositions | Chemistry; Metallurgy | 13 | Expired |
| US6569819B2 | Lubricant compositions | Chemistry; Metallurgy | 12 | Expired |
| US5786307A | Lubricating oil composition | Chemistry; Metallurgy | 11 | Expired |
| US6306801A | Lubricating oil composition comprising acylated bissuccinimide, zinc dithiophosphate and metallic detergent | Chemistry; Metallurgy | 9 | Expired |
| US8709989B2 | Lubricant composition and antioxident composition | Chemistry; Metallurgy | 7 | Active |
| US8071518B2 | Low ash engine oil composition | Chemistry; Metallurgy | 5 | Active |
| US9040470B2 | Lubricating oil composition for sliding section comprising aluminum material, and lubricating method | Chemistry; Metallurgy | 4 | Active |
| US7696137B2 | Lubricating oil compositions | Chemistry; Metallurgy | 4 | Expired |
| US7732385B2 | Lubricating oil additives, lubricating oil compositions containing such additives and processes for producing such additives and compositions | Chemistry; Metallurgy | 3 | Active |
| US7625847B2 | Lubricating oil compositions | Chemistry; Metallurgy | 3 | Expired |
| US7563751B2 | Lubricating oil composition | Chemistry; Metallurgy | 2 | Expired |
| US7612025B2 | Lubricating oil composition | Chemistry; Metallurgy | 2 | Active |
| US7563752B2 | Lubricating oil compositions | Chemistry; Metallurgy | 2 | Active |
| US9376645B2 | Lubricating oil composition for internal combustion engine | Chemistry; Metallurgy | 1 | Active |
| US7629302B2 | Lubricating oil additive and lubricating oil composition | Chemistry; Metallurgy | 1 | Expired |
| US10196529B2 | Metal surface coating composition and terminal fitted electric wire | Electricity | 1 | Active |
| US9422501B2 | Lubricating oil composition and method for lubricating sliding material while preventing elution of copper and lead | Chemistry; Metallurgy | 1 | Active |
| US8603955B2 | Lubricant composition and antioxidant composition | Chemistry; Metallurgy | 1 | Active |
| US10174207B2 | Metal surface coating composition and terminal fitted electric wire | Chemistry; Metallurgy | 0 | Active |
| US10870812B2 | Surface protection composition and terminal fitted electric wire | Electricity | 0 | Active |
| US9157046B2 | Lubricating oil composition | Chemistry; Metallurgy | 0 | Active |
| US10858609B2 | Anticorrosive agent and terminal fitted electric wire | Chemistry; Metallurgy | 0 | Active |
| US7648947B2 | Lubricating oil composition for internal combustion engine | Chemistry; Metallurgy | 0 | Expired |
| US8415282B2 | Lubricant composition | Chemistry; Metallurgy | 0 | Expired |
| US8802604B2 | Lubricating oil composition in contact with silver-containing material | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.