会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Electrophotographic photoreceptor containing polycarbonate resin as a
binder and method for preparation thereof
    • 含有聚碳酸酯树脂作为粘合剂的电子照相感光体及其制备方法
    • US5292607A
    • 1994-03-08
    • US965929
    • 1992-10-22
    • Ryoko AsoMichio KawaiOsamu MurakamiMamoru NozomiRyuji NakayamaTadashi Umehara
    • Ryoko AsoMichio KawaiOsamu MurakamiMamoru NozomiRyuji NakayamaTadashi Umehara
    • G03G5/05G03G9/087
    • G03G5/0564
    • A novel electrophotographic photoreceptor and a method of preparation therof are disclosed. The photoreceptor is characterized in that the photosensitive layer contain a specific carbonate resin binder resin having a weight average molecular weight on not less than 200,000. The resin is preferably a polycarbonate resin which contains repeating units represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are respectively and independently a hydrogen atom, a lower alkyl group, a halogen atom or an unsubstituted or substituted aromatic group; and R.sup.9 and R.sup.10 are respectively and independently a hydrogen atom, a lower alkyl group, an unsubstituted or substituted aromatic group, or form a ring or a carbonyl group together with the linking carbon atom. The method is characterized in that the photosensitive layer contains a polyocarbonate having a weight average molecular weight of not less than 200,000 as a binder resin and is formed by spray coating or spiral coating.
    • 公开了一种新型的电子照相感光体及其制备方法。 感光体的特征在于感光层含有重均分子量不小于20万的特定碳酸酯树脂粘合剂树脂。 树脂优选为包含由式(*化学结构*)(I)表示的重复单元的聚碳酸酯树脂,其中R1,R2,R3,R4,R5,R6,R7和R8分别独立地为氢原子,低级 烷基,卤素原子或未取代或取代的芳族基团; 并且R 9和R 10分别独立地为氢原子,低级烷基,未取代或取代的芳族基团,或与连接碳原子一起形成环或羰基。 该方法的特征在于感光层含有重均分子量不小于200,000的聚碳酸酯作为粘合剂树脂,并通过喷涂或螺旋涂布形成。
    • 6. 发明授权
    • Optical recording medium having zones wherein the number of sectors per
track is constant and method of injection-molding the same
    • 具有其中每个轨道的扇区数不变的区域的光记录介质和其注射成型的方法
    • US5831963A
    • 1998-11-03
    • US861282
    • 1997-05-21
    • Shigenobu HaradaMasae KuboMotonori UedaMichio KawaiMasatoshi KimuraTomohiro Yamazaki
    • Shigenobu HaradaMasae KuboMotonori UedaMichio KawaiMasatoshi KimuraTomohiro Yamazaki
    • G11B7/007G11B7/26G11B7/24
    • G11B7/00745G11B7/263
    • A large-capacity optical recording medium, comprises a track region having a plurality of tracks arranged along the concentric or spiral grooves, the track region being radially divided into annular zones, and each of the tracks being partitioned into plural sectors such that a number of the sectors per track is constant in each zone but the number of the sectors per track differs between among zones, wherein an address designating a specific track and sector is previously recorded as a plurality of prepits, the track region having a user-track region, in which a user can optically record or readout information, and a pair of control-track regions, radially bracketing said user-track region, the control-track region permitting the user to read out information therefrom but not to record information thereon, and wherein the control-track region located radially inward of the user-track region is provided with medium information tracks in which medium information has been recorded as prepits, and the control-track region located outward of the user-track region has no medium information track and is not used for recording, nor for reading out of user data.
    • 一种大容量光记录介质,包括具有沿着同心或螺旋槽布置的多个轨道的轨道区域,轨道区域被径向分成环形区域,并且每个轨道被划分成多个扇区,使得多个扇区 每个轨道的扇区在每个区域中是恒定的,但是每个轨道之间的扇区数量在区域之间不同,其中指定特定轨道和扇区的地址被预先记录为多个预凹坑,轨道区域具有用户轨道区域, 其中用户可以光学地记录或读出信息,以及一对控制轨道区域,径向包围所述用户轨道区域,所述控制轨道区域允许用户从其中读出信息,但不在其上记录信息,并且其中 在用户轨道区域的径向内侧设置的控制轨道区域设置有媒体信息轨道,其中介质信息已被记录为预先 凹坑和位于用户轨道区域外侧的控制轨道区域没有介质信息轨迹,并且不用于记录,也不用于读出用户数据。
    • 8. 发明授权
    • Distance measuring device for a camera
    • 摄像机距离测量装置
    • US5389996A
    • 1995-02-14
    • US144828
    • 1993-10-29
    • Hajime OdaHiroyuki SaitoMichio Kawai
    • Hajime OdaHiroyuki SaitoMichio Kawai
    • G01C3/06G01S7/497G02B7/32G03B13/36
    • G01S7/497G02B7/32
    • A distance measuring device for a camera has a near infrared light-projecting element for projecting measuring light to be reflected by an object to be photographed. The reflected measuring light is received as a first light beam image at a first position on a surface of a first light-receiving element. The reflected measuring light reflected by the object is also received as a second light beam image at a second position on a surface of a second light-receiving element. A CPU controls the focusing movement of the lens of the camera by computing a distance to the object depending on the first position, compensating the computed distance depending on the second position, and controlling the focusing movement of the lens based on the compensated computed distance. The CPU compares the second position with a predetermined distance value and inhibits the compensation of the computed distance if it is determined that compensation is not necessary.
    • 用于照相机的距离测量装置具有近红外光投射元件,用于投影测量光以被被拍摄物体反射。 反射的测量光在第一光接收元件的表面上的第一位置处被接收为第一光束图像。 由物体反射的反射的测量光也被接收为在第二光接收元件的表面上的第二位置处的第二光束图像。 CPU通过根据第一位置计算到物体的距离来控制相机的透镜的聚焦运动,根据第二位置补偿计算出的距离,并且基于经补偿的计算距离来控制透镜的聚焦运动。 如果确定不需要补偿,则CPU将第二位置与预定距离值进行比较,并且禁止补偿计算出的距离。