Toru Sugawara
21Patents
8h-index
27Co-inventors
75Inventor score
Filing activity: Apr 13, 1977 → May 26, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4584473A | Beam direct converter | Electricity | 57 | Expired |
| USD640786S1 | Drip chamber | General | 41 | Expired |
| US4473813A | Humidity sensor with improved protective layering | Physics | 18 | Expired |
| US4176288A | Zero voltage switching solid state relay | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4482962A | Engine control method | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4363097A | Electronic type engine control method | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4641031A | Ion source apparatus | Electricity | 12 | Expired |
| US4506160A | Ion source apparatus | Electricity | 10 | Expired |
| US4377137A | Method for starting the operation of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4454453A | Power source device for ion sources | Electricity | 7 | Expired |
| US4735764A | Open waveguide electromagnetic wave radiator for secondary heating a plasma in a nuclear fusion reactor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4263884A | Electronic fuel feed system | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US9378615B2 | Gaming table device having a game table on which the game medium is disposed | Physics | 6 | Active |
| US4926093A | Gyrotron device | Electricity | 3 | Expired |
| US4188623A | Temperature responsive apparatus employing a thermocouple | Physics | 3 | Expired |
| US8506401B2 | Gaming table device having a game table on which the game medium is disposed | Physics | 2 | Active |
| US9734481B2 | System and method for reading data from a plurality of chips comprising an RFID tag | Physics | 2 | Active |
| US8979638B2 | System and method for reading data from a plurality of chips comprising an RFID tag | Physics | 1 | Active |
| US9734662B2 | Gaming table device having a game table on which the game medium is disposed | Physics | 0 | Active |
| US9652735B2 | System and method for reading data from a plurality of chips comprising an RFID tag | Physics | 0 | Active |
| US4131930A | Thermal time-delay switch | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.