|
| | |
|
Your search returned 110 patents.
( 369/277 in Current US Classification ) |
|
|
| 1 2 |
| Patent ID | Title | Date Filed |
| 5347510 | Method of manufacturing a master plate where its guide groove has an inclined angle
| January 14, 1993 |
| 5335220 | Optical recording element and driving system
| January 16, 1992 |
| 5328740 | Magneto-optical recording medium and method for processing the surface
| February 4, 1991 |
| 5270998 | Rewritable recording medium and recording reproducing apparatus for use with rewritable recording medium
| October 23, 1991 |
| 5230770 | Making method for high-density optical disk
| January 23, 1992 |
| 5214635 | Erasable optical disk and optical information recording/reproduction apparatus
| February 14, 1992 |
| 5210738 | Optical information recording medium
| April 11, 1991 |
| 5204852 | Optical disc-like recoding medium and manufacturing method thereof
| February 15, 1991 |
| 5202880 | Double-sided magneto-optical media for a multi-disk storage device
| March 6, 1992 |
| 5202171 | Optical information recording medium
| February 21, 1991 |
| 5191564 | Over-write capable magnetooptical recording medium having groove depth of 800 .ANG. or less
| March 9, 1992 |
| 5144552 | Optical information storage medium having grooves and pits with specific depths, respectively
| May 6, 1991 |
| 5087535 | Method of manufacturing photo-mask and photo-mask manufactured thereby
| February 27, 1987 |
| 5084860 | Apparatus for optical disc memory with correction pattern and master disc cutting apparatus
| July 11, 1990 |
| 5056076 | Method for controlling the rotational velocity of an information recording disk
| April 10, 1990 |
| 4999234 | Holographic optical data storage medium
| June 10, 1988 |
| 4984232 | Compatible optical disk
| April 5, 1989 |
| 4980262 | Producing a replicate video disc by a method of photographic contact printing
| August 29, 1979 |
| 4965153 | Optical recording medium
| April 16, 1987 |
| 4956214 | Information recording medium, production process and molding die for substrate therefor
| January 25, 1989 |
| 4949331 | Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus
| June 17, 1986 |
| 4931336 | Information recording medium and method of optically recording information employing the same
| January 17, 1989 |
| 4885736 | Optical recording medium with track and track number guides
| August 21, 1987 |
| 4877713 | Preformatted optical recording card and method of producing the same
| January 16, 1987 |
| 4852076 | Optical information recording and reproducing disc employing a film having thermally changeable optical characteristics
| June 16, 1987 |
| 4819223 | Video record disc
| July 1, 1977 |
| 4753597 | Multiple segment nonsequential recording
| June 11, 1986 |
| 4719594 | Grooved optical data storage device including a chalcogenide memory layer
| August 26, 1985 |
| 4606726 | Multiple segment nonsequential recording
| November 8, 1984 |
| 4513407 | Device for optical recording and read-out of data along a prerecorded track
| July 6, 1982 |
| 4490945 | Stylus manufacturing apparatus and method
| March 23, 1983 |
| 4480302 | Optical recording media
| September 29, 1982 |
| 4433407 | Method and apparatus for recording video signals into a metal substrate
| December 14, 1981 |
| 4392219 | Method and device for recording and reproducing tracking information
| April 9, 1981 |
| 4375095 | Method and apparatus for testing styli
| January 5, 1981 |
| 4341952 | Variable pitch grooved label for video disc
| April 21, 1980 |
| 1 2 |
|
|
|
|
|
|
|
|
|
|
|