Minebea Co., Ltd.
1,242Patents
441Active
1,242Granted
53Portfolio score
Filing activity: Jul 10, 1987 → Oct 24, 2018 · 161 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7579785B2 | Multiple-light discharge lamp lighting device | Electricity | 501 | Active |
| US6582095B1 | Spread illuminating apparatus | Physics | 116 | Expired |
| US6784948B2 | Touch panel for display device with pet film having transparent gel layer | Physics | 103 | Expired |
| USD791819S1 | Portable electronic terminal with graphical user interface | General | 98 | Active |
| US6944111B2 | Information reading and recording apparatus | Physics | 90 | Expired |
| US6680448B2 | Touch panel for display device | Physics | 87 | Expired |
| US6940030B2 | Hinge key switch | Electricity | 74 | Expired |
| USD786474S1 | Recessed ceiling light | General | 70 | Active |
| US5095238A | Brushless dc motor and rotor magnet | Electricity | 66 | Expired |
| US6631998B2 | Spread illuminating apparatus | Physics | 63 | Expired |
| US6987342B2 | Rotor for an electric motor | Electricity | 62 | Expired |
| US6469564B1 | Circuit simulating a diode | Electricity | 61 | Expired |
| US6611117B1 | Drive circuit for a brushless DC motor | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6850227B2 | Wireless keyboard | Electricity | 59 | Expired |
| US6759614B2 | Keyboard switch | Electricity | 56 | Expired |
| US6177751A | Rotary electric machine and bobbin thereof | Electricity | 55 | Expired |
| US5374865A | Multi-phase hybrid stepper motor | Electricity | 55 | Expired |
| US4891567A | Brushless DC motor having an outer rotor | Electricity | 55 | Expired |
| US4841190A | Resin-filled permanent-magnet stepping motor | Electricity | 52 | Expired |
| US7196446B2 | Rotor for an electric motor | Electricity | 52 | Expired |
| US6461007B1 | Spread illuminating apparatus | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6761461B2 | Spread illuminating apparatus without light conductive bar | Physics | 48 | Expired |
| US6671189B2 | Power converter having primary and secondary side switches | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6784627B2 | Discharge lamp lighting device to light a plurality of discharge lamps | Electricity | 48 | Expired |
| US6166468A | Rotary electric machine and bearing structure thereof | Electricity | 47 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.