Michael R Pate

US Patent:

6387575, May 14, 2002

Filed:

May 25, 2001

Appl. No.:

09/865986

Inventors:

Chien-Hua Chen - Corvallis OR
Michael A Pate - Corvallis OR

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

G03F 900

US Classification:

430 5, 347 47

Abstract:

A method for manufacturing ink-jet printheads having nozzles with re-entrant profiles has the following steps. A source of electromagnetic energy is created which is then used with an optical system to produce a source of energy having a constant illumination angle on an process plane. A substrate is then exposed with the electromagnetic source to define the nozzles having the re-entrant profile. Also, apparatus for creating the constant illumination angle include an optical deflecting mask and an afocal optical system.

US Patent:

6583382, Jun 24, 2003

Filed:

May 25, 2001

Appl. No.:

09/866076

Inventors:

Chien-Hua Chen - Corvallis OR
Michael A. Pate - Corvallis OR

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B23K 2636

US Classification:

2191217

Abstract:

A method for manufacturing ink-jet printheads having nozzles with re-entrant profiles has the following steps. A source of electromagnetic energy is created which is then used with an optical system to produce a source of energy having a constant illumination angle on an process plane. A substrate is then exposed with the electromagnetic source to define the nozzles having the re-entrant profile. Also, apparatus for creating the constant illumination angle include an optical deflecting mask and an afocal optical system.

US Patent:

6747785, Jun 8, 2004

Filed:

Oct 24, 2002

Appl. No.:

10/280995

Inventors:

Zhizhang Chen - Corvallis OR
Michael A. Pate - Corvallis OR
Hung Liao - Corvallis OR

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02B 2600

US Classification:

359291, 359237, 359290, 359295, 359298, 359566, 359571

Abstract:

A light modulator has one or more gratings and one or more MEMS actuators operable to move the gratings for selectively modulating light from an input light source. Certain embodiments have a plurality of blazed gratings arranged parallel to a plane and movable linearly parallel to the plane by MEMS actuators. Each of the gratings is individually blazed for light of a selected color such as red, green or blue. Associated with the gratings may be portions providing black and/or white outputs. An aperture spaced apart from the plane allows color(s) selected from an input white-light source to be directed to an output. An array of MEMS-actuated modulation devices provides a color spatial light modulator. Other embodiments have a grating adapted to be tilted by a MEMS actuator, either continuously through a range of angles or to a selected angle of a set of predetermined discrete angles, to direct selected wavelengths diffracted by the grating toward collection optics for a modulated light output. Methods specially adapted for making and using such light modulators are disclosed.

US Patent:

6825969, Nov 30, 2004

Filed:

Mar 11, 2004

Appl. No.:

10/800326

Inventors:

Zhizhang Chen - Corvallis OR
Michael A. Pate - Corvallis OR
Hung Liao - Corvallis OR

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G02B 2600

US Classification:

359290, 359291

Abstract:

A light modulator has one or more gratings and one or more MEMS actuators operable to move the gratings for selectively modulating light from an input light source. Certain embodiments have a plurality of blazed gratings arranged parallel to a plane and movable linearly parallel to the plane by MEMS actuators. Each of the gratings is individually blazed for light of a selected color such as red, green or blue. Associated with the gratings may be portions providing black and/or white outputs. An aperture spaced apart from the plane allows color(s) selected from an input white-light source to be directed to an output. An array of MEMS-actuated modulation devices provides a color spatial light modulator. Other embodiments have a grating adapted to be tilted by a MEMS actuator, either continuously through a range of angles or to a selected angle of a set of predetermined discrete angles, to direct selected wavelengths diffracted by the grating toward collection optics for a modulated light output. Methods specially adapted for making and using such light modulators are disclosed.

US Patent:

6940097, Sep 6, 2005

Filed:

Aug 19, 2003

Appl. No.:

10/643571

Inventors:

David Champion - Lebanon OR, US
Randy Hoffman - Corvallis OR, US
Michael A. Pate - Tuscon AZ, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H01L029/786
H01L031/0232
H01L031/0224

US Classification:

257 72, 257 59, 257432, 257449, 438 69, 438 72, 349 43, 349118, 349138

Abstract:

Optical property normalization for a transparent electrical device is described. In an embodiment, an electrical device includes a plurality of laterally displaced regions that are substantially transparent. Each region of the plurality of regions includes a normalized surface that has an optical property that has a normalized value that is substantially the same, one to another. One of the regions includes a portion of an electrical component. Additionally, at least one of the regions includes beneath the normalized surface an additional surface and a spectral normalization structure. The additional surface has a value for the optical property that is not substantially the same as the normalized value. The spectral normalization structure is disposed with the additional surface such that the normalized surface of the at least one region exhibits the normalized value.

US Patent:

6963319, Nov 8, 2005

Filed:

Sep 11, 2002

Appl. No.:

10/242545

Inventors:

Michael A. Pate - Corvallis OR, US
William J. Allen - Corvallis OR, US
Michael Douglas Long - Corvallis OR, US
P. Guy Howard - Junction City OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G09G003/00

US Classification:

345 30, 345 88, 345204, 345213

Abstract:

A method of displaying an image includes receiving image data for the image; buffering the image data for the image, including creating a frame of the image; defining a first sub-frame and at least a second sub-frame for the frame of the image; and displaying the first sub-frame and the second sub-frame, including synchronizing shifting a displayed image of the second sub-frame with displaying the second sub-frame.

US Patent:

6983475, Jan 3, 2006

Filed:

Mar 26, 2002

Appl. No.:

10/106550

Inventors:

Daryl E. Anderson - Corvallis OR, US
Makarand Gore - Corvallis OR, US
Timothy F. Myers - Philomath OR, US
Tony S. Cruz-Uribe - Corvallis OR, US
Michael A. Pate - Corvallis OR, US
Sharon Leroux - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G11B 3/70

US Classification:

720718

Abstract:

A data storage device includes a surface used for labeling. The surface is covered, at least in part, with a laser imageable coating. Blocking material is placed over a portion of the laser imageable coating. The blocking material blocks laser imaging on the portion of the laser imageable coating over which the blocking material is placed.

US Patent:

6986591, Jan 17, 2006

Filed:

Dec 20, 2002

Appl. No.:

10/327418

Inventors:

Michael A Pate - Corvallis OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

F21V 7/00

US Classification:

362296, 362302, 385901

Abstract:

A photon concentrator includes an imaging photon concentrator concentrating photons from a source to an image point and a non-imaging photon concentrator. The non-imaging photon concentrator (NIPC) has an entry aperture coupling to the imaging photon concentrator near the image point. The NIPC also includes an exit aperture wherein the entry aperture is larger than the exit aperture.