The archive comprises a collection of US patents dealing with laser materials processing.

Part I: 1997
Part II: 1998
Part III: 1999
Part IV: 2000
Part V: 2001
Part VI: 2002

The abstracts of the patents from 1997 to 2002 can be displayed. Note that you will need a table-capable browser (such as Netscape Navigator) in order to properly display the abstracts.

We welcome your comments and suggestions at Cordula.Seitz@patentweb.de.
Updated 13 January 1999
Back to the starting page.

1998

1. 5,854,751 - Simulator and optimizer of laser cutting process
2. 5,854,460 - Linear motor driven laser cutting machine
3. 5,853,955 - Substrates and methods for laser marking same
4. 5,853,924 - Method of manufacturing color filters
5. 5,852,277 - Laser cutting tool for cutting elongated hollow workpieces
6. 5,852,276 - Laser machining resuming method
7. 5,851,335 - Method and compositions for laser imprinting AND articles imprinted using such methods and compositions
8. 5,850,068 - Focus control of lasers in material processing operations
9. 5,848,091 - Laser resonator with improved output beam characteristics
10. 5,848,080 - Short pulsewidth high pulse repetition frequency laser
11. 5,847,359 - Laser beam machining system and method with restart command function
12. 5,847,358 - Method and apparatus for removing material from metal workpieces moved relative to a laser removal tool
13. 5,847,357 - Laser-assisted material spray processing
14. 5,847,356 - Laser welded inkjet printhead assembly utilizing a combination laser and fiber optic push connect system
15. RE35,981 - System for cleaning molding equipment using a laser
16. 5,844,200 - Method for drilling subminiature through holes in a sensor substrate with a laser
17. 5,844,199 - Conductor pattern check apparatus for locating and repairing short and open circuits
18. 5,844,198 - Technique for laser welding dissimilar metals
19. 5,843,567 - Electrical component containing magnetic particles
20. 5,843,364 - Laser processing of discrete sheets of material
21. 5,843,363 - Ablation patterning of multi-layered structures
22. 5,841,102 - Multiple pulse space processing to enhance via entrance formation at 355 nm
23. 5,841,101 - Method used in manufacturing a workpiece using a plurality of spaced apart mask patterns
24. 5,841,100 - Method of making anti-slip handles
25. 5,841,099 - Method employing UV laser pulses of varied energy density to form depthwise self-limiting blind vias in multilayered targets
26. 5,841,098 - Method and apparatus for laser welding sectional members onto large-format aluminum structural components
27. 5,841,097 - Process and apparatus for welding workpieces with two or more laser beams whose spots are oscillated across welding direction
28. 5,841,096 - Laser machining apparatus and method of controlling same
29. 5,837,965 - Focusing head of a laser beam provided with a focusing lens for a machine for working metal and non-metal parts
30. 5,837,964 - Laser drilling holes in components by combined percussion and trepan drilling
31. 5,837,963 - Method of manufacturing a thin film magnetic head with identification marks
32. 5,837,962 - Faster laser marker employing acousto-optic deflection
33. 5,837,961 - Laser wire stripping apparatus having multiple synchronous mirrors and a method therefor
34. 5,837,960 - Laser production of articles from powders
35. 5,834,731 - Laser texturing apparatus with bernoulli holder
36. 5,831,239 - Laser welding method
37. 5,830,514 - Controlling pulses in a laser texturing tool
38. 5,829,666 - Manufacturing method of tubular bumper reinforcement member
39. 5,829,125 - Method of manufacturing circuit module
40. 5,828,491 - Phase plate technology for laser marking of magnetic discs
41. 5,828,033 - Method of manufacturing a fuel tank
42. 5,828,032 - Process for butt welding two metal blanks and a motor vehicle part obtained by said process
43. 5,828,031 - Head transducer to suspension lead termination by solder ball place/reflow
44. 5,827,588 - Workpiece having a laser heat-treated surface formed by a small diameter bore extending in workpiece
45. 5,827,391 - Machine for marking an electric cable
46. 5,826,330 - Method of manufacturing multilayer printed wiring board
47. 5,825,801 - Laser apparatus
48. 5,824,374 - In-situ laser patterning of thin film layers during sequential depositing
49. 5,823,417 - Laser pressure foot
50. 5,822,211 - Laser texturing apparatus with dual laser paths having an independently adjusted parameter
51. 5,821,497 - Laser marking system and laser marking method
52. 5,821,494 - Method of electrical connection between head transducer and suspension by solder wire bumping at slider level and laser reflow
53. 5,821,493 - Hybrid laser and arc process for welding workpieces
54. 5,820,948 - Apparatus and method for depositing films on substrate via off-axis laser ablation
55. 5,818,009 - Laser beam machining system
56. 5,817,271 - Altering the surfaces of functional absorbent materials for use in absorbent articles
57. 5,815,908 - Method and apparatus for producing a metal tube containing a light waveguide with an excess length
58. 5,814,787 - Apparatus for welding steel bars in a continuous hot rolling process
59. 5,814,786 - System and method for laser butt-welding
60. 5,814,784 - Laser-welding techniques using pre-heated tool and enlarged beam
61. 5,812,314 - Lens contamination preventive device of light-beam heater
62. 5,811,754 - Optical processing method and apparatus for carrying out the same
63. 5,811,753 - Laser machine tool with gas filled beam delivery conduit
64. 5,811,751 - Multi-wavelength laser system, probe station and laser cutter system using the same
65. 5,811,019 - Method for forming a hole and method for forming nozzle in orifice plate of printing head
66. 5,808,274 - Method of cutting masking sheet to be used to process silicon wafer
67. 5,808,273 - Process for tuning a magneto-resistive sensor
68. 5,808,272 - Laser system for functional trimming of films and devices
69. 5,808,271 - Method of laser beam welding interlaced straps of a spacer grid with plural beams
70. 5,808,268 - Method for marking substrates
71. 5,807,387 - Optical designation device especially for microsurgical operations
72. 5,807,379 - Ophthalmic method and apparatus for laser surgery of the cornea
73. 5,801,868 - Apparatus for and method of laser making
74. 5,801,356 - Laser scribing on glass using Nd:YAG laser
75. 5,798,498 - Method and apparatus for applying laser beams to a working surface, particularly for ablating tissue
76. 5,796,069 - Arc and laser welding process for pipeline
77. 5,796,068 - External laser welder for pipeline
78. 5,793,015 - Apparatus for rapidly forming laminated dies
79. 5,793,014 - Process and device for restoring the tightness of connecting elements such as water boxes of alternators with a mixed water-hydrogen cooling system
80. 5,793,012 - Fresnel reflection termination system for high powered laser systems
81. 5,792,411 - Laser machined replication tooling
82. 5,789,720 - Method of repairing a discontinuity on a tube by welding
83. 5,786,561 - Nozzle assembly for laser beam cutting
84. 5,786,560 - 3-dimensional micromachining with femtosecond laser pulses
85. 5,786,559 - Weld-braze process
86. 5,785,840 - Process for producing a surface structure for a cylinder of a printing machine
87. 5,783,804 - Reflectance method for accurate process calibration in semiconductor substrate heat treatment
88. 5,783,798 - Laser beam delivery method and system
89. 5,783,797 - Laser texturing of magnetic recording medium using a crystal material
90. 5,783,793 - Process for producing a plurality of holes in dosage forms using a laser beam deflected by an acousto-optic deflector
91. 5,780,807 - Method and apparatus for direct laser cutting of metal stents
92. 5,780,806 - Laser ablation system, and method of decontaminating surfaces
93. 5,780,805 - Pattern shifting laser cutter
94. 5,780,802 - Process for machining and butt-welding at least one edge of a sheet metal plate
95. 5,777,294 - Laser beam machining system and method using preliminary work commands
96. 5,776,220 - Method and apparatus for breaking brittle materials
97. 5,773,791 - Water laser machine tool
98. 5,773,790 - Beam blocking material and method for beam drilling and inspecting cooling holes
99. 5,773,789 - Method of making an orthopaedic implant having a porous metal pad
100. 5,772,656 - Calibration apparatus for laser ablative systems
101. 5,770,833 - Laser cutting method including piercing a work piece with a moving processing head
102. 5,770,125 - Haptic attachment system for intraocular lenses using diode laser
103. 5,770,123 - Method and apparatus for energy beam machining
104. 5,767,483 - Method of laser marking a body of material having a thermal conductivity approximately equal to that of glass
105. 5,767,482 - Laser barrier material and method
106. 5,767,481 - Laser tail cutter assembly
107. 5,767,480 - Hole generation and lead forming for integrated circuit lead frames using laser machining
108. 5,767,479 - Laser beam machining apparatus and corresponding method which employs a laser beam to pretreat and machine a workpiece
109. 5,767,477 - Laser marking apparatus for marking twin-line messages
110. 5,763,855 - Method and apparatus for supplying gaseous nitrogen to a laser beam machine
111. 5,763,854 - Machine for laser reflow soldering
112. 5,763,853 - Laser processing apparatus, laser processing method and dam bar processing method
113. 5,760,370 - Image display method for liquid crystal mask laser marker
114. 5,760,369 - Method of laser cutting paper cards for use in paper sculpture
115. 5,760,368 - Laser beam method using an inactive gas as the assist gas
116. 5,760,367 - Apparatus and method of engraving indicia on gemstones, and gemstones, produced thereby
117. 5,760,366 - Thin film forming apparatus using laser and magnetic field
118. 5,760,365 - Narrow gap laser welding
119. 5,760,364 - Unit for protecting a metal tube containing at least one optical fiber against internal overheating, and a method of implementing it
120. 5,760,362 - Apparatus for treating a material having a miniaturized photoionic head
121. 5,759,473 - Process for producing an embossing roll continuously embossing the surface of a thermoplastic film
122. 5,759,428 - Method of laser cutting a metal line on an MR head
123. 5,756,965 - On the fly laser shock peening
124. 5,756,962 - Laser-processing head for laser processing apparatus
125. 5,756,961 - Laser cutting machine
126. 5,756,236 - Fabrication of high resolution aluminum ablation masks
127. 5,755,447 - Metal gasket with shim
128. 5,753,887 - Apparatus for laser engraving indicia on gemstones
129. 5,751,588 - Multi-wavelength programmable laser processing mechanisms and apparatus utilizing vaporization detection
130. 5,750,956 - Methods of manufacturing perforated foils
131. 5,749,980 - Method for improving aluminum alloy cast structural member
132. 5,749,414 - Method and apparatus for connecting two workpieces together
133. 5,749,511 - Connection between tubes and tube bottom for a heat exchanger
134. 5,748,691 - Apparatus and methods for sealing end plugs for nuclear fuel rods
135. 5,747,772 - Laser marking method including raster scanning of rapidly rewritten liquid crystal mask
136. 5,747,771 - Method and apparatus for forming blind slots including laser melting and gas vortex
137. 5,747,770 - Method of energy beam forming surgical incision members
138. 5,747,769 - Method of laser forming a slot
139. 5,747,768 - Device for guiding and feeding at least two sheet blanks previously brought edge to edge to form a joint plane for energy beam welding
140. 5,746,229 - Perforating unit for producing ventilated cigarettes
141. 5,745,311 - Optical component welding apparatus
142. 5,744,781 - Method and apparatus for laser shock peening
143. 5,744,780 - Apparatus for precision micromachining with lasers
144. 5,744,779 - Method for manufacturing drip irrigation tubes
145. 5,744,778 - Tube handling method and apparatus for cutting machine
146. 5,744,776 - Apparatus and for laser preweakening an automotive trim cover for an air bag deployment opening
147. 5,742,426 - Laser beam treatment pattern smoothing device and laser beam treatment pattern modulator
148. 5,742,028 - Preloaded laser shock peening
149. 5,742,026 - Processes for polishing glass and glass-ceramic surfaces using excimer laser radiation
150. 5,742,025 - Laser reflow soldering process with lead-tin solder pads
151. 5,741,456 - Carbon fibre panels with laser formed holes
152. 5,739,502 - Laser intensity redistribution
153. 5,736,710 - Method and apparatus for sealing piezoelectric resonator via laser welding
154. 5,736,709 - Descaling metal with a laser having a very short pulse width and high average power
155. 5,734,146 - High pressure oxygen assisted laser cutting method
156. 5,734,145 - Laser marking method using laser heated liquid crystal mask
157. 5,731,566 - Device for welding and/or cutting
158. 5,731,047 - Multiple frequency processing to improve electrical resistivity of blind micro-vias
159. 5,730,925 - Method and apparatus for producing a three-dimensional object
160. 5,730,811 - Cavity dumped laser shock peening process
161. 5,728,994 - Laser ablation method for making a light pattern generator on a transparent substrate
162. 5,728,993 - Laser cutting of materials with plural beams
163. 5,728,992 - Apparatus and method for real time evaluation of laser welds especially in confined spaces such as within heat exchanger tubing
164. 5,728,284 - Process for manufacturing a porous electroformed shell
165. 5,726,418 - Method and installation for laser welding a spacer grid of a fuel assembly for a nuclear reactor, and device for welding via the interior of a grid
166. 5,726,411 - Method and apparatus for making holes in a workpiece
167. 5,723,843 - Method of forming and balancing an illuminated display panel
168. 5,721,416 - Optics for forming a sharp illuminating line of a laser beam
169. 5,719,376 - Method for laser heating a surface formed by a circular bore extending through a workpiece
170. 5,719,375 - Stiffener manufacturing method and apparatus thereof
171. 5,719,374 - Method of bending metal objects with an energy beam
172. 5,719,373 - Laser device for heating a surface formed by a small diameter bore in a workpiece
173. 5,719,372 - Laser marking system and method using controlled pulse width of Q-switch
174. 5,718,832 - Laser beam machine to detect presence or absence of a work piece
175. 5,718,036 - Method for manufacturing a magnetic head
176. 5,714,733 - Controller and programming unit for resistance welding and laser beam processing
177. 5,712,463 - Laser apparatus and method for adjusting the gram load static attitude and flying height of a slider in a head suspension assembly
178. 5,711,838 - Method of and device for continuously or discontinuously manufacturing flat sheets of multiple-layer materials, laminates or similar articles
179. 5,708,252 - Excimer laser scanning system
180. 5,708,251 - Method for embedding resistance heating wire in an electrofusion saddle coupler
181. 5,705,789 - Stabilization of parallel transport mirror system
182. 5,705,788 - Process for treatment of materials with diode radiation
183. 5,705,785 - Combined laser and plasma arc welding torch
184. 5,705,708 - Inhibition of discoloration of cumene hydroperoxide
185. 5,705,254 - Plastic molded article with a finished surface appearance

Copyright © 1998 Cordula Seitz. All rights reserved.