Ryutaro Takei
7Patents
3h-index
12Co-inventors
54Inventor score
Filing activity: Aug 16, 1983 → Mar 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4764619A | Optically active compounds, smectic liquid crystal compositions containing them and smectic liquid crystal display devices | Chemistry; Metallurgy | 20 | Expired |
| US4514044A | 1-(Trans-4-alkylcyclohexyl)-2-(trans-4'-(p-substituted phenyl) cyclohexyl)ethane and liquid crystal mixture | Chemistry; Metallurgy | 18 | Expired |
| US5227547A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 4 | Expired |
| US8611761B2 | Method to control temperature of LD | Electricity | 1 | Active |
| US5434321A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 1 | Expired |
| US5220084A | Method for producing dichloropentafluoropropanes | Chemistry; Metallurgy | 1 | Expired |
| US12057887B2 | Optical transmitter | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.