AIWA Corporation
59Patents
0Active
59Granted
37Portfolio score
Filing activity: Jan 16, 1978 → Aug 17, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5539456A | Video camera and camera system with white balance control | Electricity | 102 | Expired |
| US6227477A | Data storage cassette and data recording and reproducing device | Physics | 86 | Expired |
| US5270828A | Recording and reproducing method and apparatus utilizing a signal format for simplifying special operations and assisting efficient signal processing | Electricity | 64 | Expired |
| USD350351S | Mini-disk player | General | 54 | Expired |
| USD350961S | Earphone | General | 53 | Expired |
| US6633443B1 | Peak shift correction circuit and magnetic storage medium playback apparatus | Physics | 48 | Expired |
| US5889933A | Adaptive power failure recovery | Physics | 46 | Expired |
| US6417109B1 | Chemical-mechanical etch (CME) method for patterned etching of a substrate surface | Electricity | 38 | Expired |
| USD371512S | Base board for a package | General | 22 | Expired |
| US4337533A | Front loading type record player | Physics | 21 | Expired |
| US4577239A | Video tape recorder usable with different types of tape cassettes | Electricity | 20 | Expired |
| USD395424S | Data storage system | General | 19 | Expired |
| US5410225A | Video camera and camera system employing aperture control | Electricity | 18 | Expired |
| USD396721S | Radio receiver | General | 15 | Expired |
| US6324397A | Portable terminal equipment | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5872748A | Auto changer | Physics | 13 | Expired |
| US5811355A | Enhanced chemical-mechanical polishing (E-CMP) method of forming a planar surface on a thin film magnetic head to avoid pole recession | Physics | 12 | Expired |
| US5938845A | Uniform heat distribution apparatus and method for electroless nickel plating in fabrication of thin film head gaps | Chemistry; Metallurgy | 11 | Expired |
| US5864522A | Auto disc changer | Physics | 11 | Expired |
| US6417989B1 | Multiple-gap magnetic thin-film head with improved read/write coil arrangement | Physics | 11 | Expired |
| US6529449B1 | Magneto-optical head involving solid immersion lens with two-layer heat-dispersive coil | Physics | 10 | Expired |
| US5940956A | Chemical-mechanical contouring (CMC) method for forming a contoured surface | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6411808B1 | Portable terminal equipment | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6166879A | Thin film magnetic head with contoured surface | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6562251B1 | Chemical-mechanical contouring (CMC) method for forming a contoured surface using a stair-step etch | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.