Tatsuro Otaki
20Patents
9h-index
12Co-inventors
72Inventor score
Filing activity: Jan 7, 1994 → Sep 10, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6160662A | Inverted microscope having a variable stage position | Physics | 29 | Expired |
| US5572359A | Differential interference microscope apparatus and an observing method using the same apparatus | Physics | 22 | Expired |
| US5657166A | Condenser lens system for use in a microscope | Physics | 17 | Expired |
| US6091911A | Microscope photographing unit with brightness control for observation optical system | Physics | 17 | Expired |
| US5764408A | Lens-barrel optical system and microscope apparatus | Physics | 13 | Expired |
| US6317261A | Phase contrast observation device | Physics | 11 | Expired |
| US5808790A | Integrated microscope providing near-field and light microscopy | Performing Operations; Transporting | 11 | Expired |
| US6657787B1 | Contrast improvement optical apparatus and method | Physics | 10 | Expired |
| US5880455A | Focal position detection apparatus having a light reflecting member with plural reflecting films | Physics | 9 | Expired |
| US6128128A | Microscope system | Physics | 8 | Expired |
| US6178294A | Photographing unit for a microscope | Physics | 7 | Expired |
| US5699197A | Microscope with a condenser lens system having a tapered portion | Physics | 6 | Expired |
| US5847866A | Lens-barrel optical system and microscope apparatus | Physics | 5 | Expired |
| US5802406A | Focusing glass and photographic system | Physics | 3 | Expired |
| US5687416A | Photographic apparatus with selectable photometric optical systems | Physics | 2 | Expired |
| US8558996B2 | Wavefront aberration measuring apparatus | Emerging Cross-Sectional Technologies | 2 | Active |
| US7092151B2 | Microscope having a pipette device | Physics | 1 | Expired |
| US8687179B2 | Wavefront aberration measuring apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US5717520A | Intermediate lens barrel for microscope | Physics | 0 | Expired |
| US6549334B1 | Transmission illumination type differential interference microscope | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.