Ryo Sakai
92Patents
11h-index
40Co-inventors
78Inventor score
Filing activity: Nov 5, 1985 → Apr 30, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5686980A | Light-shielding film, useable in an LCD, in which fine particles of a metal or semi-metal are dispersed in and throughout an inorganic insulating film | Physics | 76 | Expired |
| US4666113A | Device for mounting cooking apparatus | Electricity | 36 | Expired |
| US6033536A | Magnetron sputtering method and sputtering target | Chemistry; Metallurgy | 30 | Expired |
| US6641478B2 | Design reel for gaming machine | Physics | 26 | Expired |
| US4635615A | Device for mounting cooking apparatus | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6753112B2 | Positive electrode active material and non-aqueous secondary battery using the same | Emerging Cross-Sectional Technologies | 15 | Expired |
| USD891513S1 | Bead table | General | 15 | Active |
| USD923090S1 | Bead table | General | 14 | Active |
| US10478740B2 | Fusible toy bead creating apparatus | Human Necessities | 13 | Active |
| US9956495B2 | Decorative bead toy and bead toy set | Performing Operations; Transporting | 12 | Active |
| USD883669S1 | Case for toy beads | General | 11 | Active |
| US8471283B2 | White LED lamp, backlight, light emitting device, display device and illumination device | Emerging Cross-Sectional Technologies | 10 | Active |
| USD915067S1 | Case for toy beads | General | 9 | Active |
| USD885490S1 | Toy bead | General | 9 | Active |
| US7709855B2 | Light-emitting device, backlight using same, and liquid crystal display | Electricity | 8 | Active |
| US6811923B1 | ACTIVE MATERIAL FOR ANODE OF SECONDARY CELL AND METHOD FOR PRODUCTION THEREOF AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND RECYCLED ELECTRONIC FUNCTIONAL MATERIAL AND METHOD FOR RECYCLING ELECTRONIC FUNCTIONAL MATERIAL | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7961762B2 | White light-emitting lamp and illuminating device using the same | Emerging Cross-Sectional Technologies | 8 | Active |
| USD891516S1 | Bead tray | General | 7 | Active |
| USD915772S1 | Case for toy beads | General | 7 | Active |
| USD883668S1 | Case for toy beads | General | 7 | Active |
| US7649310B2 | White LED, backlight using same and liquid crystal display | Electricity | 7 | Active |
| US8288937B2 | White LED, and backlight and liquid crystal display device using the same | Emerging Cross-Sectional Technologies | 7 | Active |
| US7935975B2 | White LED lamp and backlight using the same, and liquid crystal display device using the backlight | Emerging Cross-Sectional Technologies | 6 | Active |
| USD1016912S1 | Table tray for toy beads | General | 6 | Active |
| USD906839S1 | Dispenser for toy beads | General | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.