Inventor
Stephen T. Chai
Inventor
Rancho Palos Verdes, CA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography59%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables12%
G11BInformation storage based on relative movement between record carrier and transducer12%
B08BCleaning in general6%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors6%
G02BOptical elements, systems or apparatus6%
PatentTitleYear
6,480,662'Design of a variable attenuator and fabrication of its shutter element'20025,983,064'Auxiliary processor for making simulated photographic prints'19995,978,630'System for cleaning contaminants from a vacuum assisted image conditioning roll'19995,708,936'Hydrodynamically stable coating flow applicator'19985,481,341'Roller for controlling application of carrier liquid'19965,467,171'Compact active steering roll for belt loops'19955,387,962'Self-aligning roll for belt loop modules'19955,200,782'Disturbance isolation in a belt receptor of a color printer'19935,157,443'Moving belt liquid development method and device'19925,053,826'Transfer loop synchronization in recirculating color printers'19914,394,667'Radial access drive for an optical disk recorder'19834,215,932'Replenishable photoconductive system'19804,001,892'Contaminant trapping in rotating disk devices'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1999Patents assigned to XEROX CORP (12)· patent assignee history
1977Based in Carson, CA, US· patent location history
1980–1999Based in Rancho Palos Verdes, CA, US· patent location history
2002Patents assigned to DICON FIBEROPTICS INC (1)· patent assignee history
2002Based in Santa Clara, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 12 | 1977–1999 |
| DICON FIBEROPTICS INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rancho Palos Verdes, California, US | 11 | 1980–1999 |
| Santa Clara, California, US | 1 | 2002 |
| Carson, California, US | 1 | 1977 |