THE DOSHISHA
83Patents
75Active
83Granted
55Portfolio score
Filing activity: Feb 25, 2004 → Apr 1, 2024 · 26 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7633406B2 | Lighting control system | Electricity | 17 | Expired |
| US6886415B1 | Tactile sensor and gripping robot using the same | Physics | 16 | Expired |
| US8054866B2 | MC-CDMA system, transmitter and receiver | Electricity | 9 | Active |
| US8043977B2 | Method of manufacturing a semiconductor device having a group-III nitride superlattice layer on a silicon substrate | Electricity | 8 | Active |
| US7404296B2 | Cooling device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7818971B2 | CO2 cooling and heating apparatus and method having multiple refrigerating cycle circuits | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7386421B2 | Control system and lighting control system | Electricity | 5 | Expired |
| US7530235B2 | Heat pump, heat pump system, method of pumping refrigerant, and rankine cycle system | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7634088B2 | Radio communications system | Electricity | 5 | Expired |
| US10481429B2 | Liquid-crystal varifocal lens and focal length control method | Physics | 3 | Active |
| US8357271B2 | Anode for use in zinc and cobalt electrowinning and electrowinning method | Chemistry; Metallurgy | 3 | Active |
| US7558373B2 | X-ray generator employing hemimorphic crystal and ozone generator employing it | Electricity | 3 | Expired |
| US8806875B2 | Thermoacoustic device with suppressor | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9370884B2 | Resin molding apparatus and resin molding method | Electricity | 3 | Active |
| US7735658B2 | Classification apparatus for powdery substance | Performing Operations; Transporting | 2 | Active |
| US9258850B2 | Microwave heating device and image fixing apparatus using the same | Electricity | 2 | Active |
| US8160368B2 | Image feature extraction method and image compression method | Electricity | 2 | Active |
| US7603866B2 | Thermoacoustic apparatus | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8443599B2 | Thermoacoustic apparatus | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10379170B2 | Cell deterioration diagnostic based on integrated value | Physics | 1 | Active |
| US7729474B2 | X-ray generator using hemimorphic crystal | Electricity | 1 | Active |
| US10557462B2 | Magnetic fluid drive unit and magnetic fluid driving method | Emerging Cross-Sectional Technologies | 1 | Active |
| US7799715B2 | Boron carbide ceramic and manufacturing method thereof | Chemistry; Metallurgy | 1 | Active |
| US8951401B2 | Method for electrochemically depositing carbon film on a substrate | Chemistry; Metallurgy | 1 | Active |
| US11595153B2 | Receiver apparatus, and method for producing parameters for demodulation | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.