公开(公告)号：US5189209A

公开(公告)日：1993-02-23

申请号：US701853

申请日：1991-05-17

申请人： Tazuo Ohta ,  Kazuo Tanaka ,  Fumio Ohgoshi ,  Terumasa Yoshida ,  Ichihei Motoyama

发明人： Tazuo Ohta ,  Kazuo Tanaka ,  Fumio Ohgoshi ,  Terumasa Yoshida ,  Ichihei Motoyama

IPC分类号： B01J23/40 ,  C07B61/00 ,  C07C51/265 ,  C07C51/43 ,  C07C51/47 ,  C07C51/487 ,  C07C63/24

CPC分类号： C07C51/487

摘要： A process for producing highly pure isophthalic acid which comprises (a) carrying out liquid phase oxidation of an m-dialkyl benzene with molecular oxygen in an acetic acid solvent in the presence of a heavy metal catalyst to form crude isophthalic acid, (b) contact-treating the resulting crude isophthalic acid with a noble metal catalyst belonging to the Group VIII of the Periodic Table supported by activated carbon in the presence of hydrogen, and then (c) separating the deposited isophthalic acid crystal and (d) filtration-treating the separated mother liquor and (e) recirculating the mother liquor thus treated into the liquid phase oxidation step (a) for reusing as a solvent in step (a) is disclosed.

公开(公告)号：US5180953A

公开(公告)日：1993-01-19

申请号：US799459

申请日：1991-11-26

申请人： Shinji Hirata ,  Kazuo Tanaka

发明人： Shinji Hirata ,  Kazuo Tanaka

IPC分类号： H05B41/34

CPC分类号： H05B41/34

摘要： A strobo device in accordance with the present invention is provided with an insulated gate bipolar transistor connected to a flash discharge tube in series and a step-up capacitor to step up a voltage between the main electrodes of the flash discharge tube in the luminous operation. The step-up capacitor is connected so that a terminal on the side connected to a cathode of the flash discharge tube can have a high potential and the step-up capacitor is also connected so as to be charged by a current flowing through the flash discharge tube, which is not flashing. Thus the device realizes a rapid charging of the step-up capacitor. In this way a high voltage, at least more than twice as high as the charged voltage of the main capacitor, can be applied between the main electrodes of the flash discharge tube in the luminous operation, resulting in preventing flash failures during the repeating high-speed luminous emissions.

摘要翻译： 根据本发明的频闪装置设置有连接到闪光放电管的串联的绝缘栅双极晶体管和升压电容器，用于在发光操作中升高闪光放电管的主电极之间的电压。 连接升压电容器，使得连接到闪光放电管的阴极的一侧上的端子可以具有高电位，并且升压电容器也被连接，以便通过流过闪光放电的电流进行充电 管，不闪烁。 因此，器件实现了升压电容器的快速充电。 以这种方式，在发光操作中，可以在闪光放电管的主电极之间施加至少大于主电容器的充电电压的两倍的高电压，从而防止在重复的高电压期间的闪光故障， 高速发光。

公开(公告)号：US4988652A

公开(公告)日：1991-01-29

申请号：US456313

申请日：1989-12-26

申请人： Yoshikazu Shima ,  Kazuo Tanaka ,  Yoshifumi Sato

发明人： Yoshikazu Shima ,  Kazuo Tanaka ,  Yoshifumi Sato

IPC分类号： B01J31/30 ,  B01J31/40 ,  C07B61/00 ,  C07C51/12 ,  C07C51/48 ,  C07C57/30

CPC分类号： B01J31/0231 ,  B01J31/0267 ,  B01J31/20 ,  B01J31/403 ,  B01J31/4053 ,  C07C51/48 ,  B01J2231/34 ,  B01J2531/847 ,  B01J31/30 ,  Y02P20/584

摘要： An efficient process for recovering a catalyst used in the preparation of .alpha.-(4-isobutylphenyl)propionic acid, which comprises recovering part of a nickel catalyst component, such as nickel carbonyl, from a purge gas, concentrating a reaction product mixture, adding an organic solvent thereto to extract the reaction product, then separating and recovering the majority of the catalyst components from the extraction residue.

公开(公告)号：US4465342A

公开(公告)日：1984-08-14

申请号：US285012

申请日：1981-07-20

申请人： Kazuo Tanaka ,  Shigeyuki Suda

发明人： Kazuo Tanaka ,  Shigeyuki Suda

IPC分类号： G02B13/18 ,  G02B15/163 ,  G02B15/173 ,  G02B15/14

CPC分类号： G02B13/18 ,  G02B15/173

摘要： A zoom lens comprising, from front to rear, a first lens component having a positive focal length, a second lens component having a negative focal length and a third group having a positive focal length, the first and second lens components being moved to effect zooming, and the first lens component being moved to effect focusing. The above-described first, second and third lens components are each provided with at least one aspheric lens. The first lens component has a negative third order aspheric quantity and the second lens component has a positive third order aspheric quantity to realize a zoom lens of high imaging performance with fewer constituent lens elements.

摘要翻译： 一种变焦透镜，包括从前到后具有正焦距的第一透镜部件，具有负焦距的第二透镜部件和具有正焦距的第三组，所述第一和第二透镜部件被移动以实现变焦 并且第一透镜部件被移动以实现聚焦。 上述第一，第二和第三透镜部件各自设置有至少一个非球面透镜。 第一透镜部件具有负三阶非球面量，并且第二透镜部件具有正三阶非球面数量，以实现具有较少成分透镜元件的高成像性能的变焦透镜。

公开(公告)号：US4444472A

公开(公告)日：1984-04-24

申请号：US175523

申请日：1980-08-05

申请人： Kazuo Tanaka

发明人： Kazuo Tanaka

IPC分类号： G02B15/167 ,  G02B13/00 ,  G02B15/14 ,  G02B27/14 ,  H04N9/097 ,  G02B13/22

CPC分类号： G02B27/1013 ,  G02B13/00 ,  G02B15/14 ,  G02B27/145 ,  H04N9/097

摘要： A lens system, particularly a zoom lens for color television camera is provided between the final face thereof and the image plane with a color separation optical system for example color separation prisms or a stripe filter, and is so constructed that the principal ray of each light beam entering said color separation optical system is always parallel to the optical axis, whereby all the beams are introduced into the color separation optical system under the same condition to maintain satisfactory color reproduction and polarizing characteristics.

摘要翻译： 镜片系统，特别是用于彩色电视摄像机的变焦镜头，在其最终面与图像平面之间设置有例如彩色分离棱镜或条形过滤器的分色光学系统，并且被构造成使得每个光的主光线 进入所述分色光学系统的光束总是平行于光轴，由此所有光束在相同条件下被引入到分色光学系统中，以保持令人满意的色彩再现和偏振特性。

公开(公告)号：US4443078A

公开(公告)日：1984-04-17

申请号：US362253

申请日：1982-03-26

申请人： Yukichi Niwa ,  Yasuo Ogino ,  Mitsutoshi Ohwada ,  Kazuo Tanaka ,  Noboru Koumura

发明人： Yukichi Niwa ,  Yasuo Ogino ,  Mitsutoshi Ohwada ,  Kazuo Tanaka ,  Noboru Koumura

IPC分类号： G01C3/06 ,  G01C3/00 ,  G02B7/30 ,  G02B7/32 ,  G03B13/36 ,  G03B3/00 ,  G01C3/08 ,  H04N5/26

CPC分类号： G02B7/30

摘要： This specification discloses a distance detecting device in a camera for detecting the relative positional relation between two detection images of an object obtained by two optical systems spaced apart from each other by a predetermined base length, to thereby enable the distance from the camera to the object to be known, characterized in that the picture-taking optical system of the camera is used also as one of the optical systems.

摘要翻译： 本说明书公开了一种摄像机中的距离检测装置，用于检测由两个彼此间隔开的基准长度的两个光学系统获得的物体的两个检测图像之间的相对位置关系，从而能够从相机到物体的距离 众所周知，其特征在于摄像机的摄像光学系统也被用作光学系统之一。

公开(公告)号：US4364642A

公开(公告)日：1982-12-21

申请号：US176570

申请日：1980-08-11

申请人： Kazuo Tanaka ,  Ryusho Hirose

发明人： Kazuo Tanaka ,  Ryusho Hirose

IPC分类号： G02B15/167 ,  G02B7/10 ,  G02B15/17 ,  G02B15/22 ,  G02B15/16

CPC分类号： G02B7/10 ,  G02B15/17

摘要： A zoom objective includes four lens groups of which the first and fourth groups are stationary, while the second and third groups are movable independently of each other. Focus adjustment of one of the second and third groups is followed by zooming relative movement of the latter two. To maintain a constant zoom ratio throughout the entire focusing range, the relative movement of the second and third groups is controlled to effect monotonic variation of the magnifying powers of the second and third groups by means of the following formulae as embodied in a microcomputer.Zoom Ratio=Z[S.sub.1, X.sub.1, X.sub.2 (S.sub.1, X.sub.1)]dZ/dS.sub.1 =Owherein S.sub.1 is the object distance; and X.sub.1 and X.sub.2 are the amounts of movement of the second and third groups with zooming respectively.

摘要翻译： 变焦目标包括四个透镜组，其中第一和第四组是静止的，而第二组和第三组彼此独立地移动。 第二组和第三组之一的焦点调整之后是后两者的相对移动。 为了在整个聚焦范围内保持恒定的变焦比，控制第二组和第三组的相对运动，以通过微机中体现的以下公式来实现第二组和第三组的放大倍数的单调变化。 缩放比= Z [S1，X1，X2（S1，X1）] dZ / dS1 = O其中S1是物距; X1和X2分别是第二组和第三组的变焦量。

公开(公告)号：US4358474A

公开(公告)日：1982-11-09

申请号：US280552

申请日：1981-07-02

申请人： Shiro Nakano ,  Yoshiro Naito ,  Shigeki Nakamura ,  Tosimasa Ikena ,  Kazuo Tanaka

发明人： Shiro Nakano ,  Yoshiro Naito ,  Shigeki Nakamura ,  Tosimasa Ikena ,  Kazuo Tanaka

IPC分类号： B41M5/20 ,  B41N1/24 ,  B41M5/24

CPC分类号： B41N1/246 ,  B41M5/20 ,  Y10S428/913 ,  Y10S428/914 ,  Y10T428/24893 ,  Y10T428/24901 ,  Y10T428/24909 ,  Y10T428/24917 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/265 ,  Y10T428/269 ,  Y10T428/31

摘要： An electric recording material comprising(A) a semiconductive resin layer comprising a resin matrix and a conductivity-imparting agent dispersed therein and having a surface resistance of more than 1 ohm to less than 10.sup.5 ohms,(B) a metal-containing resin layer comprising a resin matrix and 5 to 60% by volume of a metal powder dispersed therein and having a surface resistance of 10.sup.5 to 10.sup.16 ohms, said metal-containing layer being laminated to one surface of said semiconductive resin layer (A),(C) an electrically conductive covering layer having a surface resistance not exceeding 10.sup.4 ohms and being lower than that of the semiconductive resin layer (A), said covering layer being laminated to the other surface of said resin layer (A), and(D) optionally, a protective covering resin layer having a higher surface resistance than that of said covering layer (C) and a thickness of not more than 10 microns, said protective covering layer being laminated to said conductive covering layer (C); and a method for electric recording using said material. The use of said material permits recording at low voltages.

公开(公告)号：US4318593A

公开(公告)日：1982-03-09

申请号：US92843

申请日：1979-11-09

申请人： Sadahiko Tsuji ,  Noritsugu Hirata ,  Kazuo Tanaka

发明人： Sadahiko Tsuji ,  Noritsugu Hirata ,  Kazuo Tanaka

IPC分类号： G02B7/08 ,  G02B7/10 ,  G02B15/167 ,  G02B15/22

CPC分类号： G02B7/10

摘要： In the disclosed zoom lens assembly containing focusing optics, a variable magnification lens group and an image forming lens group, the focusing optics are divided into a first movable focusing lens group and a second movable focusing lens group, while a control device operatively engaged with a focusing mechanism moves the first and the second movable lens groups a predetermined amount in order to compensate for changes in the picture angle during the focusing operation.

摘要翻译： 在所公开的包含聚焦光学元件的变焦透镜组件，可变放大透镜组和成像透镜组中，聚焦光学器件被分成第一可移动聚焦透镜组和第二可移动聚焦透镜组，而控制装置与 聚焦机构使第一和第二可移动透镜组移动预定量，以补偿聚焦操作期间图像角度的变化。

公开(公告)号：US4160933A

公开(公告)日：1979-07-10

申请号：US831525

申请日：1977-09-08

申请人： Kazuo Tanaka

发明人： Kazuo Tanaka

IPC分类号： G03B15/05 ,  H05B41/30 ,  H05B41/32

CPC分类号： H05B41/32

摘要： In a photographic flash device comprising a flash discharge tube, for example a xenon discharge tube, a main capacitor which is connected across electrodes of said flash discharge tube and is for storing electric charge to be discharged in said flash tube, a triggering capacitor which is connected in series with a primary coil of a triggering transformer and a synchronous switch, and a voltage indicating glow discharge lamp for indicating completion of charging in the main capacitor.A safety circuit for prohibiting accidental flashing is constituted by comprising a switching means which suspends function of said triggering capacitor.

摘要翻译： 在包括闪光放电管（例如氙放电管）的照相闪光装置中，主电容器被连接在所述闪光放电管的电极上并用于存储要在所述闪光管中放电的电荷;触发电容器， 与触发变压器和同步开关的初级线圈串联连接，以及指示用于指示主电容器中的充电完成的辉光放电灯的电压。