公开(公告)号：US20110075712A1

公开(公告)日：2011-03-31

申请号：US12890061

申请日：2010-09-24

申请人： Kazuto KURODA ,  Shinichiro Kosugi ,  Nobuo Shibuya ,  Yasuhiro Miyamoto

发明人： Kazuto KURODA ,  Shinichiro Kosugi ,  Nobuo Shibuya ,  Yasuhiro Miyamoto

IPC分类号： H04B1/38 ,  H01M10/48

CPC分类号： B60L11/1864 ,  B60L2240/547 ,  G01R31/3658 ,  H02J7/0021 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061 ,  Y02T90/16

摘要： According to one embodiment, a communication circuit includes a direct-current converter circuit configured to generate a second power supply potential different from a second reference potential by a predetermined potential, from a first power supply potential, a first receiving circuit configured to receive a binary communication signal, whose one level is at a first reference potential, through a first signal input terminal, by a differential transmission method, a first level shift circuit configured to convert the communication signal received by the first receiving circuit into a binary communication signal, whose one level is at the second reference potential, and the other level is at the second power supply potential, and a first transmission circuit configured to output the binary communication signal converted by the first level shift circuit, through a first signal output terminal, by a differential transmission method.

摘要翻译： 根据一个实施例，通信电路包括直流电转换器电路，其被配置为从第一电源电位产生不同于第二参考电位预定电位的第二电源电位，第一接收电路被配置为接收二进制 通过差分传输方法通过第一信号输入端子，其一级处于第一参考电位的通信信号，第一电平移位电路，被配置为将由第一接收电路接收的通信信号转换为二进制通信信号，二进制通信信号 一级处于第二参考电位，另一级处于第二电源电位，第一传输电路被配置为通过第一信号输出端子通过第一信号输出端子输出由第一电平移位电路转换的二进制通信信号 差分传输方式。

公开(公告)号：US20090196142A1

公开(公告)日：2009-08-06

申请号：US12362395

申请日：2009-01-29

申请人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Tsukasa NAKAI

发明人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Tsukasa NAKAI

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/126 ,  G11B7/259 ,  G11B2007/24306 ,  G11B2007/2431 ,  G11B2007/24314 ,  G11B2007/24316

摘要： According to one embodiment, in an information recording medium for which a phase change material is used and in which information is recorded on, reproduced from, and erased from a recording layer by light irradiation, a recrystallization width WR at a periphery of an amorphous recording mark formed on the recording layer by light irradiation, and a recording mark width WA and a track pitch TP satisfy 1.0

摘要翻译： 根据一个实施例，在使用相变材料的信息记录介质中，通过光照射将信息记录在记录层上并从记录层擦除信息的信息记录介质中，在非晶记录周围的再结晶宽度WR 通过光照射在记录层上形成的标记，并且记录标记宽度WA和轨道间距TP满足1.0

公开(公告)号：US20090086603A1

公开(公告)日：2009-04-02

申请号：US12206998

申请日：2008-09-09

申请人： Kazuto KURODA

发明人： Kazuto KURODA

IPC分类号： G11B7/00

CPC分类号： G11B7/00456 ,  G11B7/1263 ,  G11B7/128

摘要： According to one embodiment, a first switching element which switches a light source, a second switching element which switches a load element connected in parallel to the light source, and a switch which controls the connection between the first and second switching elements and a constant current source. When the first switching element and the second switching element are differentially operated by the switch, the switch is turned on a predetermined time earlier than the turning on of the first or second switching element.

摘要翻译： 根据一个实施例，切换光源的第一开关元件，将与光源并联连接的负载元件切换的第二开关元件和控制第一和第二开关元件之间的连接的开关和恒定电流 资源。 当第一开关元件和第二开关元件由开关差分地操作时，开关比第一或第二开关元件的接通早一个预定的时间开启。

公开(公告)号：US20090103422A1

公开(公告)日：2009-04-23

申请号：US12257213

申请日：2008-10-23

申请人： Kazuo WATABE ,  Takashi USUI ,  Keiichiro YUSU ,  Chosaku NODA ,  Kazuto KURODA ,  Nobuaki KAJI ,  Masahiro SAITO

发明人： Kazuo WATABE ,  Takashi USUI ,  Keiichiro YUSU ,  Chosaku NODA ,  Kazuto KURODA ,  Nobuaki KAJI ,  Masahiro SAITO

IPC分类号： G11B7/135

CPC分类号： G11B7/127 ,  G11B7/0045 ,  G11B7/006

摘要： According to one embodiment, an optical recording head device includes a light source which outputs such a relaxation oscillation optical pulse that a full width at half maximum of a single pulse is 820 ps or less, a driving unit for driving the light source, an objective lens which converges emission light from the light source on a recording layer of a recording medium, and captures reflective light which is reflected by the recording layer of the recording medium, a distribution unit, placed between the light source and the objective lens, for distributing incident light, and a photodetection unit for receiving via the distribution unit the reflective light which is reflected by the recording layer of the recording medium, wherein a resonator length of the light source is 6560 μm or less.

摘要翻译： 根据一个实施例，光记录头装置包括一个光源，其输出这样的弛豫振荡光脉冲，单脉冲的半高全宽为820ps或更小，用于驱动光源的驱动单元， 将来自光源的发射光会聚在记录介质的记录层上并捕获由记录介质的记录层反射的反射光，放置在光源和物镜之间的分配单元，用于分配 以及光电检测单元，用于经由分配单元接收由记录介质的记录层反射的反射光，其中光源的谐振器长度为6560μm或更小。

公开(公告)号：US20090196148A1

公开(公告)日：2009-08-06

申请号：US12362322

申请日：2009-01-29

申请人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Masaaki MATSUMARU ,  Ryosuke YAMAMOTO

发明人： Keiichiro YUSU ,  Masahiro SAITO ,  Kazuto KURODA ,  Takashi USUI ,  Kazuo WATABE ,  Chosaku NODA ,  Nobuaki KAJI ,  Masaaki MATSUMARU ,  Ryosuke YAMAMOTO

IPC分类号： G11B7/135

CPC分类号： G11B7/261

摘要： According to one embodiment, the invention provides a master recording apparatus and method which can form a pit having a symmetrical pit shape with excellent reproducibility. An embodiment of the invention is a master recording apparatus where a resist film on a master for an optical disk is irradiated with irradiation light from a semiconductor laser to record information on the resist film, where the resist film is formed as an inorganic resist film, and means for outputting the irradiation light from the semiconductor laser as a short pulse laser with a pulse width between 200 ps and 1 ns is provided.

摘要翻译： 根据一个实施例，本发明提供一种主记录装置和方法，该主记录装置和方法可以形成具有良好重复性的对称凹坑形状的凹坑。 本发明的一个实施例是一种主记录装置，其中用于光盘的主机上的抗蚀剂膜用来自半导体激光器的照射光照射以将抗蚀剂膜上的信息记录在抗蚀剂膜上，其中形成抗蚀剂膜作为无机抗蚀剂膜， 并且提供用于输出来自半导体激光器的照射光作为脉冲宽度在200ps和1ns之间的短脉冲激光器的装置。