Ippei Sawaki
47Patents
13h-index
26Co-inventors
81Inventor score
Filing activity: Jul 29, 1986 → Dec 23, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6906849B1 | Micro-mirror element | Performing Operations; Transporting | 56 | Expired |
| US5768023A | Optical apparatus | Electricity | 37 | Expired |
| US5648874A | Optical apparatus | Electricity | 28 | Expired |
| US4837855A | Non-blocking optical space switch | Electricity | 25 | Expired |
| US5380410A | Process for fabricating an optical device for generating a second harmonic optical beam | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6396636B2 | Optical device and display device using the same | Electricity | 20 | Expired |
| US5249191A | Waveguide type second-harmonic generation element and method of producing the same | Physics | 19 | Expired |
| US7161274B2 | Micro-oscillation element having two rotational axes that are non-orthogonal to each other | Electricity | 16 | Expired |
| US6817725B2 | Micro mirror unit and method of making the same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7031041B2 | Micro-oscillating element provided with torsion bar | Performing Operations; Transporting | 14 | Expired |
| US6795225B2 | Micromirror unit with torsion connector having nonconstant width | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5175788A | Optical beam profile tranforming element | Physics | 14 | Expired |
| US4955006A | Floating type magneto-optic disk reading head system having external semiconductor laser resonator operating at orthogonal two mode oscillations | Physics | 13 | Expired |
| US6806992B2 | Micro mirror unit including mirror substrate and wiring substrate spaced by conductive spacer | Physics | 12 | Expired |
| US6456436B2 | Optical device | Physics | 11 | Expired |
| US4730884A | Bipolar voltage controlled optical switch using intersecting waveguides | Physics | 10 | Expired |
| US6881649B2 | Method of making device chips collectively from common material substrate | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6473221B2 | Galvano-mirror and method of making the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7550895B2 | Method for driving micro-oscillating element having comb-teeth electrodes | Electricity | 6 | Active |
| US6887396B2 | Micromirror unit and method of making the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6021003A | Optical device | Physics | 6 | Expired |
| US6891650B2 | Micromirror unit fabrication method and micromirror unit made by the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7262541B2 | Micro-oscillation element incorporating springs | Physics | 5 | Expired |
| US7833430B2 | Method for fabricating microstructure and microstructure | Performing Operations; Transporting | 5 | Active |
| US7038830B2 | Micro-oscillation element | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.