Naotoshi Hakamata
10Patents
5h-index
7Co-inventors
59Inventor score
Filing activity: May 2, 1988 → Nov 17, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4908762A | Oximeter with system for testing transmission path | Physics | 159 | Expired |
| US4901238A | Oximeter with monitor for detecting probe dislodgement | Human Necessities | 115 | Expired |
| US4907876A | Examination apparatus for measuring oxygenation in body organs | Human Necessities | 97 | Expired |
| US5103829A | Examination apparatus for measuring oxygenation in body organs | Human Necessities | 30 | Expired |
| US7083280B2 | Pupil measuring apparatus | Human Necessities | 11 | Expired |
| US7407287B2 | Pupil measuring apparatus | Human Necessities | 5 | Expired |
| US10478063B2 | Measurement device and measurement method | Physics | 1 | Active |
| US11723534B2 | Binocular measurement device, binocular measurement method, and binocular measurement program | Human Necessities | 0 | Active |
| US10893800B2 | Binocular measurement device, binocular measurement method, and binocular measurement program | Human Necessities | 0 | Active |
| US10722112B2 | Measuring device and measuring method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.