| Number | Date | Country | Kind |
|---|---|---|---|
| 58-54296 | Dec 1983 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3482198 | Hopper, Jr. | Dec 1969 | |
| 4126882 | Carson et al. | Nov 1978 | |
| 4131911 | Fujine et al. | Dec 1978 |
| Entry |
|---|
| Electronic Design, 11-11-1982, p. 198, Vactec, Inc. Photoconductors. |
| Electronic Design, 11-11-1982, p. 221, RCA Photodiode. |