Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7064697 | Photonic sigma delta analog-to-digital conversation employing dual heterojunction thyristors | Jianhong Cai, Daniel C. Upp | 2006-06-20 |
| 7015120 | Method of fabricating semiconductor devices employing at least one modulation doped quantum well structure and one or more etch stop layers for accurate contact formation | Scott W. Duncan | 2006-03-21 |
| 7012274 | Modulation doped thyristor and complementary transistors combination for a monolithic optoelectronic integrated circuit | — | 2006-03-14 |
| 6995407 | Photonic digital-to-analog converter employing a plurality of heterojunction thyristor devices | Jianhong Cai | 2006-02-07 |
| 6977954 | Semiconductor laser array device employing modulation doped quantum well structures | Scott W. Duncan | 2005-12-20 |
| 6974969 | P-type quantum-well-base bipolar transistor device employing interdigitated base and emitter formed with a capping layer | — | 2005-12-13 |
| 6954473 | Optoelectronic device employing at least one semiconductor heterojunction thyristor for producing variable electrical/optical delay | Rohinton S. Dehmubed, Daniel C. Upp, Jianhong Cai | 2005-10-11 |
| 6936839 | Monolithic integrated circuit including a waveguide and quantum well inversion channel devices and a method of fabricating same | — | 2005-08-30 |
| 6873273 | Photonic serial digital-to-analog converter employing a heterojunction thyristor device | Jianhong Cai | 2005-03-29 |
| 6870207 | III-V charge coupled device suitable for visible, near and far infra-red detection | — | 2005-03-22 |
| 6853014 | Optoelectronic circuit employing a heterojunction thyristor device that performs high speed sampling | Jianhong Cai | 2005-02-08 |
| 6849866 | High performance optoelectronic and electronic inversion channel quantum well devices suitable for monolithic integration | — | 2005-02-01 |
| 6841795 | Semiconductor devices employing at least one modulation doped quantum well structure and one or more etch stop layers for accurate contact formation | Scott W. Duncan | 2005-01-11 |
| 6841806 | Heterojunction thyristor-based amplifier | Jianhong Cai | 2005-01-11 |
| RE38682 | Grating coupled vertical cavity optoelectronic devices | — | 2005-01-04 |
| 6479844 | Modulation doped thyristor and complementary transistor combination for a monolithic optoelectronic integrated circuit | — | 2002-11-12 |
| 6031243 | Grating coupled vertical cavity optoelectronic devices | — | 2000-02-29 |
| 4328511 | Taper isolated ram cell without gate oxide | Al F. Tasch, Jr., Pallab K. Chatterjee | 1982-05-04 |
| 4203125 | Buried storage punch through dynamic ram cell | Pallab K. Chatterjee, Al F. Tasch, Jr., Horng-Sen Fu | 1980-05-13 |