Hidekazu Tanaka
88Patents
16h-index
132Co-inventors
87Inventor score
Filing activity: Jul 15, 1988 → Aug 18, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5266931A | Apparatus and method for inputting data | Physics | 195 | Expired |
| US7058186B2 | Loudspeaker device | Electricity | 172 | Expired |
| US7001355B2 | Skin care device | Human Necessities | 125 | Expired |
| US5453761A | Information processing apparatus | Physics | 79 | Expired |
| US5438591A | Quadrature amplitude modulation type digital radio communication device and method for preventing abnormal synchronization in demodulation system | Electricity | 70 | Expired |
| US5305394A | Character inputting apparatus | Physics | 55 | Expired |
| US7054914B2 | Streaming data from multiple sources according to storage location information | Physics | 43 | Expired |
| US5150424A | On-line character recognition apparatus | Physics | 32 | Expired |
| US8670195B2 | Lens actuator | Physics | 30 | Active |
| US5166666A | Pen operated processing system with speed-responsive switching | Physics | 27 | Expired |
| US5739823A | Graph display devices | Physics | 25 | Expired |
| USD525615S1 | Speaker box | General | 23 | Expired |
| US6420367B1 | Pyrimidine derivatives exhibiting antitumor activity | Human Necessities | 21 | Expired |
| US5585090A | Cosmetics having sunscreen properties | Human Necessities | 19 | Expired |
| US5535317A | Graph display apparatus for different coordinate systems | Physics | 19 | Expired |
| US5249296A | Information processing apparatus for controlling window positions | Physics | 17 | Expired |
| US6275932A | Program startup apparatus and program startup method for use in electronic machine, and medium | Physics | 16 | Expired |
| US5907317A | Graph displaying devices and methods | Physics | 15 | Expired |
| US5002827A | Agglomerated glass flakes | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5940532A | Apparatus for and method of recognizing hand-written characters | Physics | 13 | Expired |
| USD522493S1 | Speaker box | General | 11 | Expired |
| US6104823A | Speaker system | Electricity | 11 | Expired |
| USD518025S1 | Speaker | General | 11 | Expired |
| US5379436A | Apparatus and method for responding to abnormal manipulations of an information processing system | Physics | 11 | Expired |
| US5087518A | Glass flake composite | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.