NAC CO., LTD.
4Patents
0Active
4Granted
25Portfolio score
Filing activity: Oct 12, 1978 → Dec 23, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5157499A | High-speed video camera using solid-state image sensor | Electricity | 118 | Expired |
| US4346403A | Process and device for producing animated cartoons | Electricity | 9 | Expired |
| US4238776A | Recording device of a time lapse magnetic video recorder | Electricity | 4 | Expired |
| US5976166A | Claspless stud for piercing | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.