Makoto Saito
309Patents
34h-index
441Co-inventors
93Inventor score
Filing activity: Mar 1, 1974 → Jan 2, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6474987B1 | Wafer holder | Electricity | 312 | Expired |
| US5974141A | Data management system | Electricity | 295 | Expired |
| US6141753A | Secure distribution of digital representations | Electricity | 292 | Expired |
| US6002772A | Data management system | Electricity | 220 | Expired |
| US5646999A | Data coypright management method | Electricity | 171 | Expired |
| US7093295B1 | Method and device for protecting digital data by double re-encryption | Electricity | 161 | Expired |
| US6182218A | Digital content management system using electronic watermark | Physics | 113 | Expired |
| US6424715B1 | Digital content management system and apparatus | Physics | 110 | Expired |
| US5740246A | Crypt key system | Electricity | 101 | Expired |
| US5867579A | Apparatus for data copyright management system | Physics | 96 | Expired |
| US6069952A | Data copyright management system | Electricity | 91 | Expired |
| US6076077A | Data management system | Electricity | 79 | Expired |
| US6408390B1 | Apparatus for data copyright management system | Physics | 76 | Expired |
| US5818933A | Copyright control system | Physics | 75 | Expired |
| US5239798A | External wall panel and mounting structure thereof | Fixed Constructions | 75 | Expired |
| US6826903B2 | Exhaust gas recirculation system having cooler | Mechanical Engineering; Lighting; Heating | 73 | Expired |
| US5379561A | External wall panel and mounting structure thereof | Fixed Constructions | 68 | Expired |
| US5009210A | Air/fuel ratio feedback control system for lean combustion engine | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US5848158A | Data copyright management system | Electricity | 63 | Expired |
| US5193034A | Magnetic disk apparatus of constant-density recording type, magnetic disk used therefor and servo-writing device for patterning on the magnetic disk | Physics | 61 | Expired |
| US5504933A | Pay broadcasting system | Electricity | 60 | Expired |
| US6463536B2 | Data copyright management system | Electricity | 52 | Expired |
| US6571765B2 | Control system for engine | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4189864A | Self-powered toy vehicle chassis and automatically interchangeable bodies | Human Necessities | 46 | Expired |
| US6097816A | Crypt key system | Electricity | 46 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.