Method of preparing optically active .beta.-(S)-aminoglutaric acid
monoalkyl esters
    3.
    发明授权
    Method of preparing optically active .beta.-(S)-aminoglutaric acid monoalkyl esters 失效
    光学活性β-(S) - 氨基戊二酸单烷基酯的制备方法

    公开(公告)号:US4452897A

    公开(公告)日:1984-06-05

    申请号:US388475

    申请日:1982-06-14

    IPC分类号: C12P13/04 C07B20/00 C12R1/20

    CPC分类号: C12P13/04 Y10S435/85

    摘要: The present invention provides a process for preparing a optically active .beta.-(S)-aminoglutaric acid monoalkyl ester of the formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 carbon atoms, which comprises subjecting a .beta.-N-protected aminoglutaric acid dialkyl ester of the formula: ##STR2## wherein each R is as defined above and A is an easily removable protecting group, to an action of an enzyme produced by a microorganism belonging to the genera Flavobacterium, Achromobacter, Xanthomonas, Alcaligenes, Serratia, Gluconobacter, Chromobacterium and Acetobacter, to selectively hydrolyze only one of the two ester groups, and then removing the protecting group.

    摘要翻译: 本发明提供了制备下式的光学活性β-(S) - 氨基戊二酸单烷基酯的方法:其中R是具有1至4个碳原子的低级烷基,其包括使β N-保护的下式的化合物的氨基戊二酸二烷基酯:其中每个R如上定义并且A是容易除去的保护基团,涉及由属于黄杆菌属的微生物产生的酶的作用, 无色杆菌,黄单胞菌属,产碱杆菌属,沙雷氏菌属,葡萄糖酸杆菌属,色杆菌属和醋杆菌属,仅选择性地水解两个酯基中的一个,然后除去保护基团。

    Apparatus for exposing a photosensitive beltlike material
    5.
    发明授权
    Apparatus for exposing a photosensitive beltlike material 失效
    用于曝光感光带状材料的设备

    公开(公告)号:US4049345A

    公开(公告)日:1977-09-20

    申请号:US672383

    申请日:1976-03-31

    CPC分类号: G03B27/587

    摘要: Apparatus for exposing an image of a desired pattern, such as a lead frame pattern for producing lead frames of IC devices, with a predetermined pitch on a photosensitive beltlike material consisting of a film carrier and a photoresist-coated metallic foil laminated on the carrier.Apparatus typically comprises a first means for positively supporting and accurately positioning the beltlike material at an exposing position, a second means for intermittently conveying the material and a third means for photoelectrically detecting the amount of the movement of the beltlike material to control the first and the second means.

    摘要翻译: 用于在由薄膜载体和层压在载体上的光致抗蚀剂涂覆的金属箔组成的感光带状材料上以预定间距曝光所需图案的图像,例如用于制造IC器件引线框架的引线框架图案的图像。

    Recording/reproduction apparatus, and power supply control method of video server and recording/reproduction apparatus
    9.
    发明授权
    Recording/reproduction apparatus, and power supply control method of video server and recording/reproduction apparatus 有权
    记录/再现装置以及视频服务器和记录/再现装置的电源控制方法

    公开(公告)号:US08601293B2

    公开(公告)日:2013-12-03

    申请号:US12841583

    申请日:2010-07-22

    申请人: Osamu Tanabe

    发明人: Osamu Tanabe

    IPC分类号: G06F1/00

    摘要: According to one embodiment, a recording/reproduction apparatus includes a power source controller. The power source controller includes a determination unit, a stand-by mode execution unit, and a pause mode execution unit. The determination unit determines whether or not an event associated with at least one of recording and reproduction of the information signal occurs at start-up time. The stand-by mode execution unit executes a stand-by mode in which the power level of each of the encoder, the decoder, the recording medium, and the plurality of signal processors is controlled to be lower than a predetermined level. The pause mode execution unit executes a pause mode in which the power to each of the encoder, the decoder, the recording medium, and the plurality of signal processors is turned off, and the power level of the process controller is controlled to be lower than the predetermined level.

    摘要翻译: 根据一个实施例,记录/再现装置包括电源控制器。 电源控制器包括确定单元,待机模式执行单元和暂停模式执行单元。 确定单元确定在启动时是否发生与信息信号的记录和再现中的至少一个相关联的事件。 待机模式执行单元执行待机模式,其中编码器,解码器,记录介质和多个信号处理器中的每一个的功率电平被控制为低于预定电平。 暂停模式执行单元执行暂停模式,其中关闭每个编码器,解码器,记录介质和多个信号处理器的电源,并且将处理控制器的功率电平控制为低于 预定水平。