Seigo Igaki
10Patents
7h-index
19Co-inventors
63Inventor score
Filing activity: Feb 6, 1981 → Nov 17, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5109428A | Minutia data extraction in fingerprint identification | Physics | 136 | Expired |
| US5077803A | Biological detecting system and fingerprint collating system employing same | Physics | 109 | Expired |
| US5088817A | Biological object detection apparatus | Human Necessities | 105 | Expired |
| US4559452A | Apparatus for detecting edge of semitransparent plane substance | Physics | 97 | Expired |
| US4728186A | Uneven-surface data detection apparatus | Physics | 90 | Expired |
| US4924085A | Uneven-surface data detection apparatus | Human Necessities | 83 | Expired |
| US5859357A | Apparatus for measuring friction force between a magnetic head and a magnetic disk | Physics | 9 | Expired |
| US7079340B2 | Apparatus and method of measuring write magnetic field of recording head | Physics | 4 | Expired |
| US4484077A | Exposure system and method using an electron beam | Electricity | 1 | Expired |
| US5993982A | Method and apparatus for evaluating durability of magnetic disk | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.