Takeshi Maeda
232Patents
35h-index
235Co-inventors
93Inventor score
Filing activity: Apr 23, 1976 → Jun 28, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6604021B2 | Communication robot | Physics | 285 | Expired |
| US5377178A | Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization | Physics | 143 | Expired |
| US4866692A | Method and apparatus for information recording and reproduction of a pit-shape-forming optical recording type | Physics | 109 | Expired |
| US4949331A | Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus | Physics | 97 | Expired |
| US5333126A | Information recording method and optical disk apparatus using same | Physics | 96 | Expired |
| US5418770A | Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus | Physics | 87 | Expired |
| US4866687A | Optical disc access method and optical disk storage using coarse and fine actuators | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6069870A | Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus | Physics | 81 | Expired |
| US5732061A | Recording method using trial write test pattern | Physics | 72 | Expired |
| US4866688A | Composite tracking servo system for optical disc apparatus with track offset correction | Physics | 72 | Expired |
| US5642343A | Magnetooptic disc apparatus and recording medium | Physics | 64 | Expired |
| US4085423A | Information reproducing apparatus with plural beam readout | Physics | 62 | Expired |
| US5513165A | Method for controlling the farm of a magnetic domain of a magneto-optical disk using pre-write testing | Physics | 60 | Expired |
| US5255261A | Information recording disk | Physics | 58 | Expired |
| US7113163B2 | Liquid crystal display apparatus | Physics | 53 | Expired |
| US5414451A | Three-dimensional recording and reproducing apparatus | Physics | 51 | Expired |
| US4607358A | Optical memory apparatus | Physics | 50 | Expired |
| US5590111A | Method of controlling recording of optical records | Physics | 49 | Expired |
| US6353435B2 | Liquid crystal display control apparatus and liquid crystal display apparatus | Physics | 49 | Expired |
| US6160784A | Recording a mark with the rising and falling edges varied based on previously recorded control data | Physics | 48 | Expired |
| US6850214B2 | Liquid crystal display device for displaying video data | Physics | 48 | Expired |
| US4646103A | Optical recording method | Physics | 46 | Expired |
| US4663751A | Optical information processor for compensating offset | Physics | 46 | Expired |
| US4901325A | Semiconductor laser device | Electricity | 45 | Expired |
| US5614938A | Three-dimensional recording and reproducing apparatus | Physics | 42 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.