发明授权
- 专利标题: Draw type optical recording medium
- 专利标题(中): 绘图型光学记录介质
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申请号: US892471申请日: 1992-06-02
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公开(公告)号: US5297132A公开(公告)日: 1994-03-22
- 发明人: Atsushi Takano , Masayuki Iijima , Kazuo Umeda , Kazuo Takahashi , Osamu Sasaki , Hitoshi Fujii , Mitsuru Takeda , Masaaki Asano
- 申请人: Atsushi Takano , Masayuki Iijima , Kazuo Umeda , Kazuo Takahashi , Osamu Sasaki , Hitoshi Fujii , Mitsuru Takeda , Masaaki Asano
- 申请人地址: JPX
- 专利权人: Dai Nippon Insatsu Kabushiki Kaisha
- 当前专利权人: Dai Nippon Insatsu Kabushiki Kaisha
- 当前专利权人地址: JPX
- 优先权: JPX61-257789 19861029; JPX61-283398 19861128; JPX61-285773 19861129; JPX61-292975 19861209; JPX62-73469 19870327
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/243 ; G11B7/253 ; G11B7/2534 ; G11B7/257 ; G11B7/2572
摘要:
The DRAW type optical recording medium which can record optical information by forming information pits in the recording layer by irradiation of an energy beam such as laser beam, and yet can reproduce the information immediately after writing without requiring any step of developing processing after writing of information. The optical recording medium includes a recording layer (3) for forming information pits through the occurrence of physical deformation by irradiation of an energy beam and a sensitizing layer (4) for augmenting the physical deformation in the recording layer (3) laminated on a support (2). By the presence of the sensitizing layer, recording sensitivity is improved and also stability of the medium with lapse of time becomes excellent. Further, due to the presence of the sensitizing layer, the optical recording medium can be a sealed structure and therefore the optical recording medium is lightweight and flexible, and can be made in various forms such as card, sheet, a flexible sheet, and the like.
公开/授权文献
- US6020637A Ball grid array semiconductor package 公开/授权日:2000-02-01
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