公开(公告)号：US4908250A

公开(公告)日：1990-03-13

申请号：US246925

申请日：1988-09-19

申请人： Akira Gotoh ,  Yukinobu Yamazaki ,  Naoyuki Kikuchi ,  Shinkichi Horigome ,  Motoyasu Terao ,  Hiroyuki Suzuki ,  Makoto Kitoh ,  Yuichi Kokaku ,  Mitsuru Shimizu

发明人： Akira Gotoh ,  Yukinobu Yamazaki ,  Naoyuki Kikuchi ,  Shinkichi Horigome ,  Motoyasu Terao ,  Hiroyuki Suzuki ,  Makoto Kitoh ,  Yuichi Kokaku ,  Mitsuru Shimizu

IPC分类号： G11B7/24 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2575

CPC分类号： G11B7/24 ,  G11B7/2575 ,  G11B2007/24312 ,  G11B2007/24316 ,  G11B7/2533 ,  G11B7/2534 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/261 ,  Y10T428/266 ,  Y10T428/31507 ,  Y10T428/31511 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T428/31681 ,  Y10T428/31692 ,  Y10T428/31721 ,  Y10T428/31786 ,  Y10T428/3183

摘要： In an optical recording medium, an under layer is formed between an even pattern of a substrate and a recording layer, and said under layer is made of a high polymeric material which can be melted, sublimated, or decomposed at a lower temperature than the melting point, the sublimating point, or the decomposing temperature of said recording layer. Accordingly, said under layer can relax the thermal shock transferred from said substrate into said recording layer, and the deformation of said substrate can be prevented, even through a laser beam for playback is repeatedly radiated onto said recording layer, and said optical recording medium has a larger recording sensitivity than the recording sensitivity of an optical recording disc of a prior art.

摘要翻译： 在光记录介质中，在基板的偶数图形和记录层之间形成下层，所述下层由可在比熔化的温度低的温度下熔化，升华或分解的高分子材料制成 点，升华点或所述记录层的分解温度。 因此，所述下层可以放松从所述基板转移到所述记录层中的热冲击，并且即使通过用于回放的激光束被重复地辐射到所述记录层上，也可以防止所述基板的变形，并且所述光记录介质 比现有技术的光记录盘的记录灵敏度更大的记录灵敏度。

公开(公告)号：US4896294A

公开(公告)日：1990-01-23

申请号：US261866

申请日：1988-10-25

申请人： Mitsuru Shimizu ,  Nobuyuki Ikumi

发明人： Mitsuru Shimizu ,  Nobuyuki Ikumi

IPC分类号： G11C11/401 ,  G11C8/12 ,  G11C11/404 ,  G11C11/408

CPC分类号： G11C11/404 ,  G11C11/408 ,  G11C8/12

摘要： A memory cell contains a first MOS transistor, a second MOS transistor, and a capacitor, which are connected at the first ends to one another. A word line for a first cell series, is connected to the gates of first MOS transistors in the memory cells arrayed in a row. A word line for a second cell series, is connected to the gates of second MOS transistors arrayed in a column. A bit line for the first cell series, is connected to the second ends of the first MOS transistors in the row. A bit line for the second cell series, is connected to the second ends of the second MOS transistors in the column. A selection circuit selects the first cell series or the second cell series, according to an external input signal for cell series selection. According to the semiconductor memory deivce, one of the first and second cell array series of the memory cell array can be accessed according to a logic level of the array series select signal.

公开(公告)号：US4720826A

公开(公告)日：1988-01-19

申请号：US840863

申请日：1986-03-18

申请人： Toshinori Sugiyama ,  Mitsuru Shimizu

发明人： Toshinori Sugiyama ,  Mitsuru Shimizu

IPC分类号： G11B7/24 ,  G11B7/26

CPC分类号： G11B7/24097 ,  G11B7/24015 ,  G11B7/26

摘要： An optical recording disc comprising two disc substrates, each in a cylindrical shape having a round center hole, at least one recording layer formed on the surface of at least one said disc substrate, and at least one bonding material layer is formed at an inner rim portion and an outer rim portion of the surface of the said disc substrate, on the surface of which the recording layer is formed, except for at least one portion of the said rim portion of the surface of the disc substrate, wherein the bonding material layer is provided to bond the said two disc substrates togehter, so that the surfaces of the said disc substrates, on the surface of which the recording layer is formed, face each other, thereby a space gap is formed between the said disc substrates, and the said one portion of the said rim portion of the surface of the disc substrate, where the bonding material layer is not formed, can act as a ventilation path, through which the air can pass from the said air gap into the outside of the optical recording disc, and reversely. Accordingly, the said ventilation path enables to prevent the shape of the disc substrate from changing and also enables to prevent the disc substrate from breaking, even if there is a pressure difference between the inside air gap and the outside of the optical recording disc, thereby the optical recording disc can record information correctly on the recording layer.

摘要翻译： 一种光记录盘，包括两个圆盘形基板，每个圆盘形圆柱形具有圆形中心孔，至少一个记录层形成在至少一个所述盘基片的表面上，至少一个接合材料层形成在内边缘 部分和所述盘基片的表面的外边缘部分，除了所述盘基片表面的所述边缘部分的至少一部分之外，其表面上形成有记录层，其中所述接合材料层 被提供以将所述两个盘基片连接起来，使得所述盘基片的表面上形成记录层的表面彼此面对，由此在所述盘基片之间形成间隙，并且 所述盘基片表面的所述边缘部分的一部分，其中未形成所述接合材料层，其可以用作通气路径，空气可以通过所述通气路径从所述气隙传递到 在光学记录盘之外，并且反向。 因此，即使在内部空气间隙和光记录盘的外部之间存在压力差，所述通气路径也能够防止盘基板的形状发生变化，并且还能够防止盘基板破裂，由此 光记录盘可以在记录层上正确地记录信息。

公开(公告)号：US4663584A

公开(公告)日：1987-05-05

申请号：US868580

申请日：1986-05-30

申请人： Yoshio Okada ,  Mitsuru Shimizu

发明人： Yoshio Okada ,  Mitsuru Shimizu

IPC分类号： G05F3/24 ,  H03H11/24 ,  G05F5/08

CPC分类号： G05F3/24 ,  H03H11/245

摘要： Two intermediate potentials of small current driving capacity are generated using load elements and MOS transistors, and are respectively supplied to the gates of two MOS transistors which are series-connected between power sources and have large current driving capacity, thus obtaining an intermediate potential from a node between the MOS transistors. The MOS transistors at the output stage are complementarily operated so as not to be turned on at the same time.

摘要翻译： 使用负载元件和MOS晶体管产生两个小电流驱动能力的中间电位，分别提供给串联在电源之间的两个MOS晶体管的栅极，并具有大的电流驱动能力，从而从 MOS晶体管之间的节点。 在输出级的MOS晶体管互补操作，以便不同时导通。