Kenichi Iga
13Patents
6h-index
24Co-inventors
66Inventor score
Filing activity: Feb 19, 1980 → Nov 21, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5091756A | Superlattice structure | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5764828A | Optical apparatus for controlling angle of divergence of ring beam | Physics | 21 | Expired |
| US5020066A | Surface-emitting-type semiconductor laser device | Electricity | 16 | Expired |
| US4340966A | Semiconductor laser with buffer layer | Electricity | 15 | Expired |
| US5289486A | Semiconductor luminous element and superlattice structure | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5789760A | Multiquantum barrier Schottky junction device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5241554A | Laser diode of variable beam divergence and information processor using the same | Electricity | 6 | Expired |
| US5236864A | Method of manufacturing a surface-emitting type semiconductor laser device | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5362974A | Group II-VI material semiconductor optical device with strained multiquantum barriers | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6449300B1 | Surface-emitting laser | Electricity | 4 | Expired |
| US5932890A | Field effect transistor loaded with multiquantum barrier | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5383213A | Semiconductor device with current confinement structure | Electricity | 4 | Expired |
| US6764229B1 | Method and apparatus for optical fiber splicing | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.