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

Method of manufacturing a high density ink jet printhead

Patent 5433809 Issued on July 18, 1995. Estimated Expiration Date: Icon_subject November 9, 2013. 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

3857049

Multi-nozzle ink jet print head apparatus
Patent #: 4194210
Issued on: 03/18/1980
Inventor: Krause

Piezoelectrically operated print head with channel matrix and method of manufacture
Patent #: 4536097
Issued on: 08/20/1985
Inventor: Nilsson

Shear mode transducer for drop-on-demand liquid ejector
Patent #: 4584590
Issued on: 04/22/1986
Inventor: Fischbeck ,   et al.

Method of fabricating an ink jet apparatus
Patent #: 4751774
Issued on: 06/21/1988
Inventor: DeYoung ,   et al.

Shear mode transducer for ink jet systems
Patent #: 4825227
Issued on: 04/25/1989
Inventor: Fischbeck ,   et al.

Droplet deposition apparatus
Patent #: 4879568
Issued on: 11/07/1989
Inventor: Bartky, et al.

Droplet deposition apparatus
Patent #: 4887100
Issued on: 12/12/1989
Inventor: Michaelis, et al.

Printing of pixel locations by an ink jet printer using multiple nozzles for each pixel or pixel row
Patent #: 4963882
Issued on: 10/16/1990
Inventor: Hickman

High density multi-channel array, electrically pulsed droplet deposition apparatus
Patent #: 5016028
Issued on: 05/14/1991
Inventor: Temple

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Inventors

Assignee

Application

No. 149717 filed on 11/09/1993

US Classes:

156/268, Partial cutting bonded sandwich (e.g., grooving or incising)29/25.35, PIEZOELECTRIC DEVICE MAKING29/890.1, Fluid pattern dispersing device making, e.g., ink jet156/257, Partial cutting (e.g., grooving or incising)347/68, With piezoelectric force ejection347/69, Shear mode347/71, Layers, plates347/72Plural piezoelectric laminate

Examiners

Primary: Simmons, David A.
Assistant: Mayes, Curtis

Attorney, Agent or Firm

Foreign Patent References

  • 0364136 EP. 04/25/1990
  • 0402172 EP. 12/25/1990
  • 3820082 DE. 12/25/1988

International Class

B32B 031/18

Abstract

Method for manufacturing a sidewall actuatable, high density channel array for an ink jet printhead. A first surface of a main body portion formed from an active material is conductively bonded to a first surface of a first intermediate body portion formed from an active material. A plurality of parallel grooves are then machined through the first intermediate body portion and part of the main body portion to form a plurality of channels separated by a corresponding plurality of sidewall actuators comprised of a first sidewall section formed from an active material and a second sidewall section formed from an active material. A top body portion is then conductively mounted to the intermediate body portion.

Other References

  • Wallace, David B., "A Method of Characteristics Model of a Drop-on-Demand Ink-Jet Device Using an Integral Method Drop Formation Model", 89-WA/FE-4 (1989
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