Ikuo Ishinabe
24Patents
8h-index
25Co-inventors
75Inventor score
Filing activity: Jul 11, 1994 → Sep 11, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6462810B1 | Surveying system | Physics | 59 | Expired |
| US6295174A | Reflective prism device | Physics | 50 | Expired |
| US6587244B1 | Optical communication system for survey instrument | Physics | 48 | Expired |
| US6437859B1 | Device for detecting optical position | Physics | 36 | Expired |
| US6894767B2 | Light wave distance-measuring system | Physics | 32 | Expired |
| US5513001A | Tilt angle automatic compensator in all directions | Physics | 15 | Expired |
| US7382443B2 | Distance measuring method and distance measuring device | Physics | 10 | Active |
| US6222678A | Automatic survey instrument | Physics | 9 | Expired |
| US5847824A | Automatic angle compensator | Physics | 7 | Expired |
| US7884923B2 | Laser surveying system and distance measuring method | Physics | 5 | Active |
| US6253457A | Laser beam direction correcting optical system for a surveying instrument | Emerging Cross-Sectional Technologies | 4 | Expired |
| US10871370B2 | Measurement device | Physics | 1 | Active |
| US11402206B2 | Surveying instrument and surveying instrument system | Physics | 1 | Active |
| US11698254B2 | Surveying instrument having wavelength dispersion compensation prisms and surveying instrument system | Physics | 0 | Active |
| US10383517B2 | Ophthalmic operation microscope | Human Necessities | 0 | Active |
| US11275154B2 | Method of correcting measurement value of laser scanner, and device for the method | Physics | 0 | Active |
| US10568504B2 | Ophthalmologic apparatus | Human Necessities | 0 | Active |
| US10932664B2 | Ophthalmic device | Human Necessities | 0 | Active |
| US9668650B2 | Ophthalmologic apparatus | Human Necessities | 0 | Active |
| US10932665B2 | Ophthalmologic microscope system | Human Necessities | 0 | Active |
| US10531984B2 | Ophthalmologic microscope system | Physics | 0 | Active |
| US11506759B2 | Surveying instrument and surveying instrument system | Physics | 0 | Active |
| US10758123B2 | Ophthalmological microscope system | Human Necessities | 0 | Active |
| US8917382B2 | Electric distance meter | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.