Tsuyoshi Maruyama
40Patents
4h-index
49Co-inventors
63Inventor score
Filing activity: Jun 29, 1990 → Mar 18, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5832736A | Disk heat exchanger , and a refrigeration system including the same | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6593602B2 | Edge emission type semiconductor device for emitting super luminescent light, its manufacture and spatial optical communication device | Electricity | 15 | Expired |
| US5445706A | Wet treatment adapted for mirror etching ZnSe | Electricity | 8 | Expired |
| US8256161B2 | Automatic opening/closing apparatus for vehicle | Fixed Constructions | 7 | Active |
| US9229469B2 | Reactive force pedal device | Emerging Cross-Sectional Technologies | 4 | Active |
| US7905558B2 | Vehicular brake hydraulic control device | Performing Operations; Transporting | 3 | Active |
| US8259353B2 | Image forming apparatus | Electricity | 3 | Active |
| US6520670B2 | Light radiating device with large beam spot size and spatial optical communication device | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9485807B2 | Liquid heating apparatus and liquid heating method | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8737851B2 | Image forming apparatus with abnormal discharge detection | Physics | 2 | Active |
| US8697976B2 | Parameter setting apparatus having separate operators for course and fine adjustments for the same parameter | Physics | 2 | Active |
| US10358031B2 | Reaction force generating apparatus | Physics | 1 | Active |
| US5038669A | RAM piston with internal reservoir and check valve | Performing Operations; Transporting | 1 | Expired |
| US8862004B2 | Image forming apparatus including chargers and a current detecing unit that detects a sum of currents of the chargers | Physics | 1 | Active |
| US10738526B2 | Actuator and vehicle door opening/closing actuator | Fixed Constructions | 1 | Active |
| US8203066B2 | Pedal apparatus and electronic keyboard apparatus having the same | Physics | 1 | Active |
| US9446673B2 | Charging port device for electric vehicle | Emerging Cross-Sectional Technologies | 1 | Active |
| US8792798B2 | Image forming apparatus having a configuration to prevent electric discharge in a cleaning member | Physics | 1 | Active |
| US11342817B2 | Touch sensor unit | Fixed Constructions | 0 | Active |
| US8903261B2 | Heating apparatus and image forming apparatus having the same | Physics | 0 | Active |
| US11401746B2 | Sensor unit manufacturing method | Electricity | 0 | Active |
| US8676067B2 | Image forming apparatus | Physics | 0 | Active |
| US8249473B2 | Image forming apparatus with reduced deterioration of the carrier carrying developer | Physics | 0 | Active |
| US8594521B2 | Image forming apparatus | Physics | 0 | Active |
| US11437894B2 | Touch sensor unit | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.