John J Harmon

US Patent:

54691966, Nov 21, 1995

Filed:

Jun 30, 1993

Appl. No.:

8/085864

Inventors:

Sandra Y. Okazaki - Vancouver WA
John P. Harmon - Corvallis OR

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

B41J 25308

US Classification:

347 8

Abstract:

A print material variable support mechanism to reduce buckling of print material toward a printhead during printing. The preferred embodiment includes a moveable platen pivotally mounted adjacent a drive roller. The platen is positioned adjacent and below a printhead such that the printhead and the platen define a print zone therebetween. A measuring device is operatively associated with a print controller such that the print controller effects movement of the platen during relatively high ink density printing such that the sheet is allowed to buckle downwardly. In the preferred embodiment, the measuring device is an ink drop counter which determines how many ink drops are placed on the sheet to create the desired image.

US Patent:

47060972, Nov 10, 1987

Filed:

Apr 3, 1986

Appl. No.:

6/848366

Inventors:

John P. Harmon - Vancouver WA

Assignee:

Hewlett Packard Company - Palo Alto CA

International Classification:

G01D 1524

US Classification:

346139C

Abstract:

A printhead for a thermal ink jet printer or the like is brought into good electrical contact with raised electrical contacts on a flexible interconnect circuit by the use of a molded near-linear spring connect structure. This novel structure includes a horizontal central locating member from which a plurality of resilient hollow cylinders extend vertically upward and in alignment with the electrical contacts on the flexible interconnect circuit. Since there is a near-linear deflection of the cylinder walls with increasing force applied thereto, good electrical contact is achieved between the printhead and the flex circuit using a minimum of force, thereby minimizing the likelihood of damage to the printhead.

US Patent:

20230057911, Feb 23, 2023

Filed:

Oct 7, 2022

Appl. No.:

18/045057

Inventors:

- Beaverton OR, US
Chad N. Teters - Oregon City OR, US
Ernst Adrian Henle - Eugene OR, US
Thomas Leonard Allen - Milwaukie OR, US
John Paul Harmon - Albany OR, US
Samuel Peter Grimm - Philomath OR, US
Peter Jon Polesnak - Eugene OR, US

Assignee:

Vadient Optics, LLC - Beaverton OR

International Classification:

H01Q 15/02
B33Y 80/00
B33Y 70/10

Abstract:

A method of additively manufacturing a composite article with tuned impedance and refractive-index in three dimensions. The method includes providing a ferrite feedstock. The ferrite feedstock is loaded with ferrite particles. The method further includes depositing and curing the ferrite feedstock. Therein a composite article is formed.