Keizo Ishiguro
10Patents
3h-index
20Co-inventors
60Inventor score
Filing activity: Jun 21, 1990 → Aug 21, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5100223A | Zoom lens | Physics | 16 | Expired |
| US5862272A | Image detector | Electricity | 7 | Expired |
| US6239840A | Exposure controller having coring value adapted to the discharge pulse count | Electricity | 5 | Expired |
| US6999241B2 | Zoom lens, and video camera and digital still camera using the zoom lens | Physics | 2 | Expired |
| USRE38771E1 | Exposure controller having coring value adapted to the discharge pulse count | General | 2 | Expired |
| US9280314B2 | Method for controlling cordless telephone device, handset of cordless telephone device, and cordless telephone device | Physics | 1 | Active |
| US8218069B2 | Camera body with which various flash devices can be interchangeably used | Electricity | 0 | Active |
| US8810717B2 | Camera body and flash device with compatibility determination of external auxiliary light source | Electricity | 0 | Active |
| USRE48232E1 | Method for controlling cordless telephone device, handset of cordless telephone device, and cordless telephone device | General | 0 | Active |
| USRE49284E1 | Method for controlling cordless telephone device, handset of cordless telephone device, and cordless telephone device | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.