1
Fred Thomas Fred Thomas
Paul R Johnson, James Bero, Jeff G Carter, Anthony M Candia, George T Kieger, Ronald F Hales, Fred C Thomas III: Method of and apparatus for removing debris from the floptical medium. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Eric D Levinson, May 30, 1995: US05419733 (6 worldwide citation)

The current invention substantially removes particulate waste materials or debris from the floptical medium after laser etching. A low-temperature gas containing ice crystals is applied at a predetermined angle while the floptical medium is being rotated to improve the cleaning effect. The temperatu ...


2
Garo Khanarian Charles Szmanda
Garo Khanarian, Nicola Pugliano, Charles R Szmanda, Jae Hyung Yi: Thin film photovoltaic cell. Rohm and Haas Electronic Materials, September 29, 2011: US20110232758-A1

A thin film photovoltaic cell is provided having a substrate; a back contact provided on the substrate; a p-type semiconductor absorber layer provided on the back contact; a n-type semiconductor layer provided on the p-type semiconductor absorber layer; a dielectric organic material layer provided o ...


3
Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Acousto-optical intensity control of laser beam. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025341

The intensity of a beam of light used to etch concentric servo tracks (12) on a magnetic medium is adjusted with an acousto-optical device to maintain the energy density delivered by the beam substantially constant while the optics (71) which generate the beam move radially of the disk (61).


4
Fred Thomas Fred Thomas
Thomas Fred Charles, Johnson Paul R: Pneumatic hub locking device for etching optical servo tracks on magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025343

An apparatus for etching optical servo tracks on a magnetic storage disk (11) comprises optics for generating a beam of light for etching the servo tracks and a spindle (15) for rotating the disk (11) in proximity to the optics. The device further comprises a center pin (16) at the center of rotatio ...


5
Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026004

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


6
Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Steering laser beam while etching optical servo tracks for magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026007

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.


7
Fred Thomas Fred Thomas
Johnson Paul R, Bero James, Carter Jeff G, Candia Anthony M, Kieger George T, Hales Ronald F, Thomas Fred C Iii: A method of and apparatus for removing debris from the floptical medium. Minnesota Mining And Manufacturing Company, KURTZ Richard E, January 6, 1994: WO/1994/000274

A method and apparatus for removal of particulate waste materials or debris (10) from the floptical medium (1) after laser etching. A low temperature gas containing ice crystals (4) is applied at a predetermined angle while the floptical medium (1) is being rotated to improve the cleaning effect. Th ...


8
Dieter Joos Steven Terryn
Steven Terryn, Dieter Joos: Bandwidth calibration of active filter. STMicroelectronics Belgium, Lisa K Jorgenson, James H Morris, Wolf Greenfield & Sacks P C, April 6, 2010: US07692484 (3 worldwide citation)

An active RC filter has an op-amp and a biasing circuit arranged to bias the op-amp to set a gain bandwidth product of the op-amp according to a desired pole frequency of the filter. The biasing circuit is operable according to an output of an RC calibration circuit. The op-amp can be an OTA transco ...


9
Dana Gronbeck Charles Szmanda
Lujia Bu, Emine Cagin, Chandra Cutler, Dana A Gronbeck, Charles R Szmanda: Memory devices based on electric field programmable films. Rohm And Haas Company, September 29, 2005: US20050211978-A1

Disclosed herein is an electric field programmable film comprising a polymer bonded to an electroactive moiety. Disclosed herein too is a method of manufacturing an electric field programmable film comprising depositing upon a substrate, a composition comprising a polymer and an electroactive moiety ...


10
Craig Allen
Desaraju V Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierre Marc Allemand, Niall R Lynam: Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices. Donnelly Corporation, Fitzpatrick Cella Harper & Scinto, June 8, 1999: US05910854 (355 worldwide citation)

The present invention relates to electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films and processes for making such solid films and devices. The electrochromic polymeric solid films of the present invention exhibit beneficial properties and characteristic ...



Click the thumbnails below to visualize the patent trend.