Yoko Hirohara
31Patents
10h-index
16Co-inventors
72Inventor score
Filing activity: Oct 18, 1999 → Nov 22, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6685320B2 | Opthalmic characteristic measuring apparatus | Human Necessities | 50 | Expired |
| US7270413B2 | Ophthalmic data measuring apparatus, ophthalmic data measurement program and eye characteristic measuring apparatus | Human Necessities | 35 | Expired |
| US7246906B2 | Correction-factor determination apparatus and method | Human Necessities | 29 | Expired |
| US7441900B2 | Contrast chart device, contrast sensitivity measuring device and contrast sensitivity measuring method | Human Necessities | 24 | Expired |
| US7360894B2 | Opthalmological apparatus | Human Necessities | 23 | Expired |
| US7309126B2 | Eye characteristics measuring device | Human Necessities | 20 | Expired |
| US6525883B2 | Optical characteristic measuring instrument | Human Necessities | 14 | Expired |
| US6905209B2 | Optical characteristics measuring device | Human Necessities | 12 | Expired |
| US6802609B2 | Eye characteristic measuring apparatus | Human Necessities | 10 | Expired |
| US7465049B2 | Portable ophthalmic apparatus and ophthalmic system | Human Necessities | 10 | Expired |
| US7216980B2 | Eye characteristic measuring apparatus | Human Necessities | 9 | Expired |
| US6629761B1 | Eye characteristic measuring apparatus | Physics | 9 | Expired |
| US6695450B2 | Ophthalmic characteristics measuring apparatus | Human Necessities | 7 | Expired |
| US6536900B2 | Eye characteristic measuring apparatus | Human Necessities | 7 | Expired |
| US7036933B2 | Model eye for eye characteristic measuring device and calibration method for the same | Human Necessities | 7 | Expired |
| US7677728B2 | Ophthalmologic measuring apparatus | Human Necessities | 7 | Active |
| US7568800B2 | Apparatus and method for spectrally measuring fundus | Physics | 6 | Active |
| US7249851B2 | Eye characteristic measuring apparatus | Human Necessities | 6 | Expired |
| US7241012B2 | Ophthalmologic apparatus | Human Necessities | 4 | Expired |
| US7222962B2 | Opthalmic measuring apparatus | Human Necessities | 4 | Expired |
| US7311402B2 | Eye optical characteristic measuring instrument | Human Necessities | 4 | Expired |
| US7490939B2 | Eye characteristics measuring system | Human Necessities | 3 | Expired |
| US7850305B2 | Apparatus and method for measuring spectrum image data of eyeground | Human Necessities | 3 | Active |
| US7249852B2 | Eye characteristic measuring apparatus | Human Necessities | 3 | Expired |
| US6354705B1 | Anterior segment photographing apparatus for producing images of a section of the anterior segment of the eye to be examined by using slit light beam | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.