Chikara KOJIMA
65Patents
2h-index
33Co-inventors
56Inventor score
Filing activity: Sep 2, 2011 → Jan 3, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9772314B2 | Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensor | Physics | 4 | Active |
| US9144977B2 | Liquid ejection head and liquid ejection apparatus | Performing Operations; Transporting | 3 | Active |
| US9987663B2 | Ultrasonic sensor | Physics | 2 | Active |
| US9308727B2 | Liquid ejecting head and liquid ejecting apparatus | Performing Operations; Transporting | 2 | Active |
| US10833244B2 | Piezoelectric element and method for manufacturing same | Performing Operations; Transporting | 1 | Active |
| US11378670B2 | Ultrasonic device and ultrasonic apparatus | Performing Operations; Transporting | 1 | Active |
| US11152559B2 | Piezoelectric element, ultrasonic sensor, discharging head, ultrasonic device, liquid discharging device, and method of manufacturing piezoelectric element | Performing Operations; Transporting | 1 | Active |
| US10161916B2 | Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensor | Physics | 1 | Active |
| US10203404B2 | Ultrasonic sensor and manufacturing method for the same | Electricity | 1 | Active |
| US11594670B2 | MEMs device and electronic device | Performing Operations; Transporting | 1 | Active |
| US10656003B2 | Liquid surface sensor and liquid surface detection method | Performing Operations; Transporting | 1 | Active |
| US11018291B2 | Ultrasonic device and ultrasonic apparatus | Electricity | 0 | Active |
| US11085816B2 | Ultrasonic wave sensor and ultrasonic wave device | Physics | 0 | Active |
| US12055168B2 | Fluid device | Performing Operations; Transporting | 0 | Active |
| US11581478B2 | Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus | Electricity | 0 | Active |
| US12397251B2 | Fluid device | Physics | 0 | Active |
| US12083558B2 | Ultrasonic device to suppress influence of crosstalk between channels | Performing Operations; Transporting | 0 | Active |
| US11529649B2 | Piezoelectric film, piezoelectric module, and method of manufacturing piezoelectric film | Electricity | 0 | Active |
| US8702197B2 | Piezoelectric actuator, liquid ejection head, and liquid ejection apparatus | Performing Operations; Transporting | 0 | Active |
| US10130339B2 | Ultrasound sensor and method of manufacturing thereof | Electricity | 0 | Active |
| US10252296B2 | Ultrasonic sensor | Physics | 0 | Active |
| US10374140B2 | Piezoelectric device for ultrasonic sensor | Electricity | 0 | Active |
| US12350711B2 | Ultrasonic element and ultrasonic device | Performing Operations; Transporting | 0 | Active |
| US12135251B2 | Piezoelectric element device, piezoelectric element apparatus, and load detection method | Performing Operations; Transporting | 0 | Active |
| US11233188B2 | Ultrasonic wave sensor and ultrasonic wave device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.