Hidehiro Kume
19Patents
10h-index
18Co-inventors
69Inventor score
Filing activity: Oct 23, 1987 → Jan 18, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5005162A | Optical head devices for use in disc players | Physics | 31 | Expired |
| US5541899A | Optical pickup device with movable objective lens and stationary focusing and tracking coils | Physics | 24 | Expired |
| US5864207A | Photomultiplier with lens element | Electricity | 22 | Expired |
| US4823331A | Focusing detection apparatus | Physics | 21 | Expired |
| US5181195A | Tracking error signal generator with DC offset cancellation | Physics | 18 | Expired |
| US4873429A | Optical pick-up head without pick-up of stray light | Physics | 16 | Expired |
| US4893296A | Optical pickup device | Electricity | 15 | Expired |
| US6980303B2 | Light-emitting/receiving combined unit and displacement sensors using the same | Physics | 14 | Expired |
| US5727111A | Optical pick-up and light detecting cover therefor | Physics | 13 | Expired |
| US4897828A | Optical pickup device | Physics | 10 | Expired |
| US5181193A | Optical pickup device for a recording and/or reproducing apparatus | Physics | 9 | Expired |
| US5144614A | Optical pickup device | Physics | 7 | Expired |
| US5060217A | Optical head devices for use in recording and/or reproduction of information | Physics | 5 | Expired |
| US5521394A | Compact displacement detecting system with optical integrated circuit and connector in-line with optical axis | Physics | 3 | Expired |
| US5847380A | Side-on type photomultiplier comprising an envelope having an opening, a lens element, and a lens positioning structure | Electricity | 2 | Expired |
| US6114621A | Photomultiplier with magnetic shielding case | Electricity | 2 | Expired |
| US5965982A | Side-on type photomultiplier | Electricity | 2 | Expired |
| US7336367B2 | Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device | Physics | 1 | Active |
| US7187449B2 | Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.