| Patent Number |
Title Of Patent |
Date Issued |
| 5410612 |
Apparatus and method for recognizing characters |
April 25, 1995 |
| An apparatus and method for recognizing characters in image information includes inputting image coordinate data corresponding to the handwritten image, displaying a calligraphic image on the basis of the image coordinate data, recognizing characters in the image coordinate data, and |
| 5248584 |
Optical card and method for reading information recorded in it |
September 28, 1993 |
| An optical card comprises a transparent substrate having a track groove on its surface, an optical recording layer provided on said track groove, and an opaque card substrate provided in such a manner that it may be contiguous to said optical recording layer, wherein an unrecordable part |
| 5245030 |
IR-ray absorptive amino compound and optical recording medium by use thereof |
September 14, 1993 |
| An IR-ray absorptive compound represented by the formula (1) or (2): ##STR1## and an optical recording medium having a substrate and an organic dye thin film, comprising the formulae (1) and/or (2). |
| 5108873 |
IR-ray absorptive compound and optical recording medium by use thereof |
April 28, 1992 |
| An IR-ray absorptive compound represented by the formula (1) or (2): ##STR1## and an optical recording medium having a substrate and an organic dye thin film, comprising the formulae (1) and/or (2). |
| 4921780 |
Optical recording medium |
May 1, 1990 |
| An optical recording medium having a recording layer provided on a substrate, said recording layer comprising an organic thin film containing at least one diazulenium salt compound represented by the formula [I], [II] or [III], and a recording method using it. |
| 4871601 |
Optical information recording carrier |
October 3, 1989 |
| An optical information recording carrier comprises an optical recording layer provided on a transparent substrate, a film coating layer laminated with out adhesion on said optical recording layer, and further a fixing layer laminated thereon to fix said film coating layer. |
