Toru Musha
10Patents
9h-index
8Co-inventors
65Inventor score
Filing activity: May 1, 1979 → Jun 26, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4302830A | Optical information reading-out apparatus | Physics | 45 | Expired |
| US4544838A | Method and apparatus for detecting tracking error | Physics | 34 | Expired |
| US4386823A | Objective lens driving device | Electricity | 28 | Expired |
| US5233444A | Focus error detecting apparatus | Physics | 25 | Expired |
| US4479051A | Apparatus for driving objective lens in tracking direction | Physics | 19 | Expired |
| US4390781A | Method and apparatus for detecting focussing error signal of objective lens | Physics | 19 | Expired |
| US5814807A | Optical pick-up head and integrated type optical unit for use in optical pick-up head | Physics | 17 | Expired |
| US4408313A | Objective lens driving device for tracking and focus corrections | Physics | 13 | Expired |
| US5898167A | Optical pick-up head and integrated type optical unit for use in optical pick-up head | Physics | 9 | Expired |
| US5804814A | Optical pick-up head and integrated type optical unit for use in optical pick-up head | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.