Nobuyuki Kaku
82Patents
12h-index
108Co-inventors
87Inventor score
Filing activity: Jun 16, 1982 → Apr 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6334686B1 | Display optical unit and display apparatus | Electricity | 41 | Expired |
| US6280038A | Optical equipment | Electricity | 38 | Expired |
| US6290360A | Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same | Physics | 32 | Expired |
| US5701214A | Tape loading device in magnetic recording/playback apparatus that controls loading based on calculated reel inertia and tape position | Physics | 23 | Expired |
| US5808824A | Tape feed control system | Physics | 19 | Expired |
| US5825969A | Information management apparatus for inhibiting reproduction in a video cassette recorder | Electricity | 18 | Expired |
| US4991039A | Apparatus for detecting tape-end | Physics | 14 | Expired |
| USD848517S1 | Projector | General | 14 | Active |
| USD828864S1 | Projector | General | 14 | Active |
| US5706146A | Cassette detecting and discriminating arrangement in a cassette transport mechanism for loading and unloading tape cassettes of varying sizes and cassettes for use therewith | Physics | 13 | Expired |
| USD844043S1 | Projector | General | 13 | Active |
| US4837646A | Tape guide apparatus for helically wound tape | Physics | 12 | Expired |
| US5959803A | Cartridge changer, data storage unit using the changer and apparatus using the data storage unit | Physics | 11 | Expired |
| US6431710B1 | Optical apparatus | Electricity | 11 | Expired |
| US4780783A | Locking device for a cover of magnetic tape cartridge | Physics | 10 | Expired |
| US5041928A | Apparatus for loading a tape on a magnetic head drum of a helical scanning type video tape recorder | Physics | 10 | Expired |
| US10457199B2 | Image projection apparatus | Performing Operations; Transporting | 9 | Active |
| US6595645B2 | Display optical unit and display apparatus using this unit | Electricity | 9 | Expired |
| US6783245B2 | Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same | Physics | 9 | Expired |
| US4899235A | Magnetic tape loading mechanism and method | Physics | 9 | Expired |
| US5739976A | Magnetic recording and reproducing apparatus | Physics | 8 | Expired |
| US4814910A | Small sized magnetic recording and reproducing apparatus with improved rotating magnetic head | Physics | 8 | Expired |
| US5307215A | Method and device for loading tape in magnetic recorder | Physics | 8 | Expired |
| US5570831A | Pneumatic static guide for a tape | Performing Operations; Transporting | 8 | Expired |
| US4583137A | Signal-recording/reproducing apparatus | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.