Ikuya Kikuchi
30Patents
7h-index
21Co-inventors
69Inventor score
Filing activity: Dec 8, 1983 → Jan 31, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4596448A | Optical system support and positioning device for use in an optical reading apparatus | Physics | 38 | Expired |
| US6320699A | Aberration correcting apparatus and optical apparatus using the same | Physics | 26 | Expired |
| US5007712A | Optical pick-up unit | Physics | 16 | Expired |
| US6751175B1 | Aberration correcting device and optical pickup apparatus using the same | Physics | 9 | Expired |
| US6353582B1 | Pickup device | Physics | 9 | Expired |
| US6518555B1 | Polarization hologram lens, optical pickup, information reproduction apparatus and information recording apparatus | Physics | 8 | Expired |
| US7016269B2 | Optical pickup apparatus and focusing control method | Physics | 8 | Expired |
| US5034934A | Opto-magnetic disk unit with improved dynamic range characteristics and opto-magnetic disk therefor | Physics | 7 | Expired |
| US6667947B2 | Optical multi-layer information recordating medium | Physics | 7 | Expired |
| US6373807B1 | Optical pickup information reproducing apparatus and information recording apparatus | Physics | 6 | Expired |
| US5892748A | Optical pickup for reading or recording information on a recording surface | Physics | 6 | Expired |
| US5333124A | Magnetic optical disk player having improved servoresponse sensitivity | Physics | 5 | Expired |
| US9042021B2 | Optical element, head-up display and light source unit | Physics | 5 | Active |
| US6584065B1 | Information recording medium apparatus for forming the same and information recording and reproducing systems | Physics | 4 | Expired |
| US7453787B2 | Optical pickup | Physics | 4 | Expired |
| US6885616B2 | Optical pickup apparatus and information recording and/or reproducing apparatus | Physics | 4 | Expired |
| US6683732B2 | Objective lens collision preventing device and method for manufacturing the same | Physics | 4 | Expired |
| US6594091B2 | Optical pickup | Physics | 3 | Expired |
| US8422137B2 | Optical element, head-up display and method for producing optical element | Emerging Cross-Sectional Technologies | 3 | Active |
| US5220544A | Magnetic optical disk player having improved magnetic field orientations | Physics | 3 | Expired |
| US5022022A | Support structure for an optical pickup electrically adjustable in two directions | Physics | 2 | Expired |
| US6529339B2 | Lens and production method therefor | Physics | 2 | Expired |
| US6992953B2 | Tracking servo apparatus of optical information recording and reproducing apparatus | Physics | 2 | Expired |
| US6804185B2 | Optical pickup and information recording and/or reproducing apparatus including the same | Physics | 2 | Expired |
| US4901303A | Photo-electro-magnetic disc device | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.