Hideki Hatano
26Patents
11h-index
24Co-inventors
75Inventor score
Filing activity: Jun 2, 1982 → Oct 25, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5009490A | Photo-conductive liquid crystal light valve | Physics | 134 | Expired |
| US6856433B2 | Holographic recording medium and holographic recording/reproducing apparatus using the same | Physics | 107 | Expired |
| US6088321A | Volume holographic memory apparatus having a reference beam and a signal beam with opposite intensity distributions | Physics | 33 | Expired |
| US4539662A | Method and system for optically recording and playing back information on a recording medium having magnetization film thereon | Physics | 31 | Expired |
| US6373806B1 | Two-color hologram recording/reproducing apparatus | Physics | 22 | Expired |
| US6256281A | Volume holographic memory-based optical information-recording/reproducing apparatus | Physics | 21 | Expired |
| US4549287A | System for recording and playing back information with magneto-optical disk memory using record and readout light beams of different wavelengths | Physics | 17 | Expired |
| US6535472B1 | Hologram recording apparatus and method therefor | Physics | 14 | Expired |
| US6670079B1 | Photorefractive material | Physics | 13 | Expired |
| US6816291B2 | Optical information recording and reproducing apparatus having volume holographic memory | Physics | 11 | Expired |
| US6320683A | Optical information recording and reproducing apparatus using a volume holographic memory | Physics | 11 | Expired |
| US4670865A | Method of recording information on magneto-optic information storage medium | Physics | 10 | Expired |
| US4550346A | Magneto-optic information recording system | Electricity | 8 | Expired |
| US6594220B1 | Volume holographic memory and optical information recording/reproducing apparatus | Physics | 7 | Expired |
| US6900914B1 | Optical information recording and reproducing apparatus having volume holographic memory | Physics | 5 | Expired |
| US6301028A | Holographic memory and optical information recording and reproducing apparatus using the same | Physics | 5 | Expired |
| US4554651A | Magneto-optical recording medium and method for preventing the erasing of the information recorded on the magneto-optical recording medium | Physics | 5 | Expired |
| US6490061B1 | Optical information recording and reproducing apparatus having volume holographic memory | Physics | 5 | Expired |
| US7976717B2 | Method of forming polarization reversal area, apparatus thereof and device using it | Emerging Cross-Sectional Technologies | 4 | Active |
| US6862120B2 | Hologram recording medium, hologram recording method and hologram recording and reproducing apparatus | Physics | 4 | Expired |
| US5144463A | Liquid crystal light valve using non-monochromatic writing light | Physics | 4 | Expired |
| US6414762B1 | Optical information recording and reproducing apparatus using a holographic memory | Physics | 3 | Expired |
| US6574181B1 | Holographic memory medium and recording apparatus using the same | Physics | 3 | Expired |
| US4525824A | Information recording system | Physics | 3 | Expired |
| US6049401A | Volume holographic memory | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.