Registers – Coded record sensors – Particular sensor structure
Patent
1997-02-05
1999-05-25
Le, Thien
Registers
Coded record sensors
Particular sensor structure
235464, 235454, 23546232, G06K 710
Patent
active
059071443
ABSTRACT:
The invention is a method and apparatus for imprinting a microscopic code on a small surface, such as the edge of a magnetic disk, or the head used to read or write information to the disk and a magnetic disk imprinted with such microscopic identification codes. The invention provides a way to identify products using microscopic codes, such as bar codes, by using a laser to imprint such microscopic bar codes on a product. The identification meets the stringent cleanliness requirements of the computer industry without generating debris, and so is exceptionally suited for use in identifying hard disks and heads used in a disk drive.
REFERENCES:
patent: 4166574 (1979-09-01), Yokoyama
patent: 4383276 (1983-05-01), Makino
patent: 4585931 (1986-04-01), Duncan et al.
patent: 4652733 (1987-03-01), Eng et al.
patent: 4677604 (1987-06-01), Selby, III et al.
patent: 4744074 (1988-05-01), Imanaka et al.
patent: 4794238 (1988-12-01), Hampton
patent: 4806731 (1989-02-01), Bragard et al.
patent: 4814589 (1989-03-01), Storch et al.
patent: 4961077 (1990-10-01), Wilson et al.
patent: 4983815 (1991-01-01), Kumasaka
patent: 5016240 (1991-05-01), Strandjord et al.
patent: 5062021 (1991-10-01), Ranjan et al.
patent: 5108781 (1992-04-01), Ranjan et al.
patent: 5118369 (1992-06-01), Shamir
patent: 5129974 (1992-07-01), Aurenius
patent: 5175425 (1992-12-01), Spratte et al.
patent: 5210545 (1993-05-01), Tomita
patent: 5210672 (1993-05-01), Ivers et al.
patent: 5216234 (1993-06-01), Bell
patent: 5283422 (1994-02-01), Storch et al.
patent: 5489768 (1996-02-01), Brownstein et al.
patent: 5513169 (1996-04-01), Fite et al.
patent: 5706266 (1998-01-01), Brownstein et al.
patent: 5751471 (1998-05-01), Chen et al.
patent: 5761301 (1998-06-01), Oshima et al.
"Bar Code Scan Head for Reading Etched Marks on Metallic Surfaces," IBM Technical Disclosure Bulletin, vol. 28, No. 9, Feb. 1986, p. 4162.
"Linear Detector Array Bar Code Reader," IBM Research Disclosure, Dec. 1986.
"In Fab Identification of Silicon Wafers with Clean, Laser Marked Barcodes," IEEE/SMI 1994 Advanced Semiconductor Manufacturing Conference and Workshop, Nov. 1994, pp. 157-160.
Poon Chie Ching
Spector Clarence Jacob
Tam Andrew Ching
International Business Machines - Corporation
Knight G. Marlin
Le Thien
Rodriguez Douglas X.
LandOfFree
Microscopic bar code for component identification and method for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microscopic bar code for component identification and method for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microscopic bar code for component identification and method for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-402414