Tschang; Pin S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tschang; Pin S..The latest application filed is for "dot printer and method for grey level recording and circuit for use in same".
- Tschang; Pin S. - Rochester NY
| Patent | Date |
|---|---|
| Dot printer and method for grey level recording and circuit for use in same Grant 5,300,960 - Pham , et al. April 5, 1 | 1994-04-05 |
| Non-impact printhead and driver circuit for use therewith Grant 5,257,039 - Chung , et al. October 26, 1 | 1993-10-26 |
| Printer apparatus Grant 4,941,004 - Pham , et al. * July 10, 1 | 1990-07-10 |
| Non-impact printer apparatus with improved current mirror driver and method of printing Grant 4,885,597 - Tschang , et al. December 5, 1 | 1989-12-05 |
| Printer apparatus Grant 4,831,395 - Pham , et al. May 16, 1 | 1989-05-16 |
| Circuit for generating center pulse width modulated waveforms and non-impact printer using same Grant 4,750,010 - Ayers , et al. June 7, 1 | 1988-06-07 |
| Dot printer with token bit selection of data latching Grant 4,746,941 - Pham , et al. May 24, 1 | 1988-05-24 |
| Hybrid color image sensing array Grant 4,214,264 - Hayward , et al. July 22, 1 | 1980-07-22 |
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