Toru Okada
68Patents
12h-index
84Co-inventors
87Inventor score
Filing activity: Mar 24, 1976 → Jun 13, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5453887A | Head tracking servo pattern | Physics | 51 | Expired |
| US5408153A | Index position detecting apparatus for an electromagnetic rotary machine | Electricity | 46 | Expired |
| US5146879A | Variable compression ratio apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6374315B1 | Interface with connection unit for loading host computer with external storage device format control information in response to connection of host computer to connection unit | Electricity | 38 | Expired |
| US6903876B2 | Display | Physics | 33 | Expired |
| US5991530A | Interface device receivable in card storage device slot of host computer | Electricity | 25 | Expired |
| US5257255A | Recording and/or reproducing apparatus with sensor for detecting head speed or acceleration | Physics | 19 | Expired |
| US6058089A | External floppy drive with secure storage of a cable and connector for connecting to a computer system | Physics | 16 | Expired |
| US6400529B1 | Integrated circuit chip supporting and electrically connecting a head slider | Physics | 16 | Expired |
| US6483190B1 | Semiconductor chip element, semiconductor chip element mounting structure, semiconductor chip element mounting device and mounting method | Electricity | 13 | Expired |
| US4969056A | Apparatus for recording information on a disc | Physics | 13 | Expired |
| US8589259B2 | Purchasing transaction support system | Physics | 12 | Active |
| US6653761B2 | Micro-actuator and method of producing the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7347347B2 | Head assembly, disk unit, and bonding method and apparatus | Electricity | 9 | Expired |
| US5968498A | Freshness retaining gel composition | Human Necessities | 9 | Expired |
| US7111390B2 | Parts mounting and assembling apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6885522B1 | Head assembly having integrated circuit chip covered by layer which prevents foreign particle generation | Electricity | 8 | Expired |
| US7133733B2 | Design support system | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5985303A | Shelf-life extender for food use | Human Necessities | 7 | Expired |
| USD359276S | Flexible disc drive | General | 6 | Expired |
| US6541898B2 | Method of bonding piezoelectric element and electrode, and piezoelectric microactuator using the bonding method | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5560534A | Soldering apparatus | Electricity | 6 | Expired |
| US4020568A | Planetarium moon projector | Physics | 6 | Expired |
| US4136819A | Card processing apparatus | Physics | 5 | Expired |
| US9080921B2 | Calibration method for multi-component force measuring spindle unit used in tire testing machine | Physics | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.