Masayasu Hirano
26Patents
9h-index
43Co-inventors
71Inventor score
Filing activity: Nov 29, 1985 → Feb 4, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6169854A | Display device connectable to a camera | Physics | 117 | Expired |
| US5260735A | Camera system | Physics | 102 | Expired |
| US4821338A | Optical signal receiving apparatus with compensation for peripheral light | Physics | 96 | Expired |
| US5313235A | Sound playback apparatus capable of playing back sounds relevant to photographs | Physics | 64 | Expired |
| US5128700A | Camera capable of recording sounds relevant to the photographing | Physics | 49 | Expired |
| US4855779A | Camera system | Physics | 26 | Expired |
| US5081482A | IC card and camera for use therewith | Physics | 16 | Expired |
| US5040016A | Camera system | Physics | 13 | Expired |
| US4958181A | Camera system | Physics | 9 | Expired |
| US5006877A | Camera system | Physics | 8 | Expired |
| US4994844A | Camera system | Physics | 8 | Expired |
| US5130737A | Flash bracket photographing apparatus for a camera | Physics | 8 | Expired |
| US5070234A | Connecting device for IC card | Physics | 5 | Expired |
| US6141499A | Camera capable of displaying the level of visual effect | Physics | 4 | Expired |
| US5140361A | Camera system having the plurality of manually settable parameters for determining camera operation | Physics | 4 | Expired |
| US5032857A | Camera with card accommodating device | Physics | 4 | Expired |
| US5319413A | Camera system | Physics | 4 | Expired |
| US5223884A | Camera system | Physics | 3 | Expired |
| US5159384A | Camera exposure control system selectively operative in exposure control mode based on multi-spot light measurement or in exposure control mode based on flash light | Physics | 3 | Expired |
| US4937601A | Winding and rewinding apparatus | Physics | 3 | Expired |
| US5576786A | Camera system | Physics | 2 | Expired |
| US5504552A | Camera system | Physics | 2 | Expired |
| US5539495A | Camera system | Physics | 2 | Expired |
| US4707104A | Camera having motor-driven film wind and rewind system | Physics | 1 | Expired |
| US5235379A | Camera system | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.