MITSUMI ELECTRIC CO., LTD.
1,573Patents
756Active
1,573Granted
55Portfolio score
Filing activity: Aug 26, 1974 → Nov 22, 2024 · 278 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5793359A | System for RF communication between a computer and a remote wireless data input device | Electricity | 321 | Expired |
| US6195225A | Disk drive having anti-wobbling mechanism | Physics | 157 | Expired |
| USD557667S1 | Slide switch | General | 122 | Expired |
| US6357021B1 | Method and apparatus for updating firmware | Physics | 120 | Expired |
| US6708231B1 | Method and system for performing a peripheral firmware update | Physics | 108 | Expired |
| US6166721A | Mouse as computer input device having additional mechanism for controlling additional function such as scrolling | Physics | 100 | Expired |
| US7136674B2 | Control adapter device | Electricity | 99 | Expired |
| US6353894B1 | Power management system | Physics | 94 | Expired |
| USD493447S1 | Antenna | General | 90 | Expired |
| US5640090A | Sensor IC | Physics | 89 | Expired |
| US5757327A | Antenna unit for use in navigation system | Electricity | 85 | Expired |
| US6565438B2 | Video game control adapter apparatus | Human Necessities | 79 | Expired |
| USD489388S1 | Camera module | General | 73 | Expired |
| US7285879B2 | Autofocus actuator | Physics | 72 | Expired |
| US5412809A | Disk drive power control circuit and method | Emerging Cross-Sectional Technologies | 70 | Expired |
| US6340880B1 | Method of protecting a chargeable electric cell | Electricity | 64 | Expired |
| USD480712S1 | Satellite radio broadcast receiving antenna | General | 64 | Expired |
| US5721856A | Optical disk write method | Physics | 63 | Expired |
| US5637014A | Electrical connector | Electricity | 62 | Expired |
| US4737008A | Optical transmitting and/or receiving module | Physics | 61 | Expired |
| USD432497S | AC power adapter | General | 61 | Expired |
| USD449577S | Battery case | General | 56 | Expired |
| US5940255A | Large-capacity flexible disk and high-density type disk drive used therefor | Physics | 53 | Expired |
| USD452842S1 | Adapter | General | 50 | Expired |
| US7090521B2 | Floating connector | Electricity | 50 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.