U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Migration imaging system

Patent 5227265 Issued on July 13, 1993. Estimated Expiration Date: Icon_subject November 30, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3410203

3574657

3723113

3780214

3798030

3833441

3836364

Setting electrical latent images in migration imaging elements
Patent #: 4123283
Issued on: 10/31/1978
Inventor: Goffe

Transfer letter system
Patent #: 4123578
Issued on: 10/31/1978
Inventor: Perrington ,   et al.

Electrophotosensitive migration imaging apparatus and method
Patent #: 4125322
Issued on: 11/14/1978
Inventor: Kaukeinen ,   et al.

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Inventors

Application

No. 673509 filed on 11/30/1990

US Classes:

430/41, Migration imaging, process, composition, or product, e.g., electrosolography, etc.250/316.1, WITH INFRARED OR THERMAL PATTERN RECORDING250/317.1, Thermal copying of documents250/318, With image transfer device430/44, Manipulation of color separation image to obtain a multicolor image in registration430/126, Transfer of image to different surface430/348, THERMOGRAPHIC PROCESS430/944INFRARED

Examiners

Primary: McCamish, Marion E.
Assistant: Rodee, Christopher D.

Attorney, Agent or Firm

Foreign Patent References

  • 87/03249 WO. 12/13/1987

International Class

G03G 013/048

Abstract

A migration imaging system using a laser-addressable thermoplastic imaging member. The imaging member comprises a supporting section and a thermoplastic imaging surface layer. A charged, uniform layer of marking particles is deposited on the imaging surface layer. An imagewise-modulated laser beam transforms selected volumes of the imaging surface layer in an imagewise pattern to a permeable state. Charged marking particles that superpose a transformed volume then migrate into the imaging surface layer so as to be retained. Unaddressed marking particles are cleaned away. The imaging member, or solely the imaging surface layer, may be transferred and bonded to a receiver such as a drum for use as an exposure mask, or to a receiver sheet to provide a hard copy reproduction. The processed imaging member is usable as a master in a xeroprinting system.

Other References

  • "Xeroprinting Master with Improved Contrast Potential" by Robert W. Gundlach, Xerox Disclos. Journal, vol. 14, No. 4, Jul./Aug. 1989, pp. 205-206
  • "Printing by Means of a Laser Beam" by D. D. Roshon, Jr. and T. Young, IBM Technical Disclosure Bulletin, vol. 7, No. 3, Aug. 196
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