Patents Represented by Law Firm Blum, Kaplan, Friedman, Silberman & Beran
  • Patent number: 4929005
    Abstract: A device for transferring electric power and/or information between two parts which are movable one with respect to the other, in particular between a door frame and a door leaf or an opening window leaf, mounted in this door frame, comprising a first coil wound on a first magnetic core and a second coil wound on a second magnetic core, the first coil being intended to be connected to an electric power source and to be mounted with its core on one of said parts, the second coil being intended to be mounted with its core on the other part, so that both said cores determine a magnetic circuit in at least one determined position of said parts one with respect to the other in order to so allow a variable electric current travelling in said first coil to induce a variable magnetic flux in both cores, and creates an electric current in the second coil when the latter is connected to a closed electric circuit.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 29, 1990
    Assignee: S.A. Ets. R. Heinen N.V.
    Inventor: Hans-Dieter Heinen
  • Patent number: 4850685
    Abstract: A projection-type color display device. The display device includes a light source which provides light and a color separation member which receives the light and which separates the received light into the different colors of red, blue and green light. A light valve device receives the red, blue and green light and modulates the light to produce images. A color synthesis cube prism synthesizes the three monochromatic lights modulated by the light valve. A projection lens system projects the synthesized image onto a screen for viewing.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: July 25, 1989
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Kamakura, Tomio Sonehara, Takeshi Ono, Junichi Nakamura, Akitaka Yajima, Shuji Aruga
  • Patent number: 4761150
    Abstract: A movable eye for toys, dolls, and the like, has an eye component which is pivoted in an eye enclosure for motion between an open and a closed position. An actuator arm engages external surface portions of the eye component for imparting closing an opening motions thereto and for holding the eye component in closed and open positions. The actuator can be manually or mechanically actuated.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: August 2, 1988
    Assignee: Hong Kong Yung Hong Trading Co., Ltd.
    Inventors: Carl Lautenberger, Harvey W. Samo
  • Patent number: 4750152
    Abstract: An apparatus for reading data to and from a moving magneto-optical recording medium includes a carriage which is moved across data tracks contained in the medium. Optics for focusing a spot of light on the medium and a mechanism for fine tracking of the spot on a selected track are carried on the carriage and are movable independently of the carriage in response to separately amplified servo signals which are derived from light which is reflected from the spot of light on the data-containing track.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: June 7, 1988
    Assignee: Seiko Epson Corporation
    Inventors: Masatoshi Yonekubo, Shigeru Kogure
  • Patent number: 4743096
    Abstract: The present invention provides, in an active matrix liquid crystal display device of the type including non-linear elements, for the application of an ON pulse-width modulation signal by the data line driving circuit at the rearward end of each selected period, during which the voltage corresponding to the duty-cycle of the selected signal is applied to the liquid crystal layer. The result is accurate reproduction of gray-scale images in the display under conditions of high duty-cycle driving. Further, cross-talk between columns caused by the data signal is controlled by supplying a signal voltage which eliminates the residual charges in the liquid crystal layer at the end of each selected period.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: May 10, 1988
    Assignee: Seiko Epson Kabushiki Kaisha
    Inventors: Yoichi Wakai, Satoru Yazawa, Hiroaki Ikejiri, Yoshiro Uchikawa, Masahide Isuda
  • Patent number: 4723855
    Abstract: A compact printer has a type drum having at least one row of types, the types, including at least one space, being arranged on the periphery of the drum at regular intervals. The type drum is rotated by a stepper motor and a hammer member is provided for moving a selected type towards the paper for printing. The stepper motor is turned by signals which correspond to each step necessary to move the type drum through at least one pitch distance between types. Ratchet teeth, moving with the type drum, can be engaged by a blocking lever when rotation of the type drum is reversed, so as to stop vibration of the type drum at the time of printing.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: February 9, 1988
    Assignee: Seiko Epson Corp.
    Inventors: Hitoshi Mikoshiba, Hiroshi Takizawa
  • Patent number: 4719133
    Abstract: The invention relates to treating wood with a wood preservative by applying in one or more recesses made in the wood solid material together with the wood preservative in such a way that the solid material fills up the recesses at least partly, said solid material having a lower water content than the wood treated and exerts a reinforcing effect upon this wood, when it absorbs water and in result expands and/or when a permanent pressure is exerted upon it.Furthermore, the invention relates to products to be used for this treatment, with which by one single act the filling-up of a recess in the wood to be treated and the closing thereof can be effected.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: January 12, 1988
    Inventor: Jacob Woudsma
  • Patent number: 4671616
    Abstract: A liquid crystal optical device including a plurality of optical shutters is provided. The optical device includes a first glass substrate having N common electrodes disposed thereon and a second glass substrate having N signal electrodes disposed thereon, the glass substrates spaced apart and opposed to each other so that the electrodes are crossed. A liquid crystal material including a nematic liquid crystal having dielectric anisotropy which becomes 0 at a crossing frequency (fC) of 100 KHz or below at atmospheric temperatures including a optically active material encapsulated between the glass substrates. Polarizing plates are disposed on the outside of the liquid crystal panel and the device is driven in a N time-sharing mode by applying the driving signals to the common electrode and the signal electrodes. The optical device is particularly well suited for use in an optical printer in view of the rapid response times.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: June 9, 1987
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Aoki, Katsumori Takei, Haruo Nakamura, Yoshikazu Matsushita
  • Patent number: 4670908
    Abstract: A multi-ply shirt collar formed of two creased outer plies of fabric having a thermoplastic resin deposited on the inner surfaces and an improved method of fabricating the collar are provided. The edges of the fabric with resin are folded in over an interlining piece having a dimension corresponding substantially to the final collar and subjected to heat and pressure to fuse the fabric to the shape of the collar. A complimentary creased fabric/interlining intermediate or creased fabric is placed in back-to-back alignment and edge stitch along the folded edges to form the shirt collar.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: June 9, 1987
    Inventor: Michael P. Albert
  • Patent number: 4660935
    Abstract: A matrix-type liquid crystal display device for use in alphanumeric and television displays, and the like, has a screen in which division of images produced by the display screen resulting from assembly error is eliminated by means of reduction in the areas of the picture forming elements near the region where end portions of the signal electrodes project between control electrodes.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: April 28, 1987
    Assignee: Seiko Epson Corporation
    Inventors: Yukihiro Iwashita, Kotaro Ueno
  • Patent number: 4660030
    Abstract: This invention is directed to an improved liquid crystal video display device. An interlacing video display technique is utilized and scanning signals are provided to every other scanning electrode line in sequential order, shifting selected lines every frame. An additional selected voltage is provided during the time period which overlaps the selected scanning electrode lines to the adjacent non-selected electrodes both above and below the selected scanning electrode lines. According to the invention, a high resolution display is provided while reducing associated flicker by driving all scanning lines in the desired order.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: April 21, 1987
    Assignee: Seiko Epson Kabushiki Kaisha
    Inventor: Shuji Maezawa
  • Patent number: 4659183
    Abstract: A liquid crystal display panel having a backlight for providing high brightness, uniformity of illumination intensity, small thickness, high efficiency and which can be manufactured at a low cost. The display device includes a liquid crystal display panel, a light source for illuminating the liquid crystal panel, a light passage member which can be formed of either transparent or translucent material disposed between the liquid crystal panel and the light source. The light source inlet side of the light passage member is formed with a recess so that the thickness is reduced at the region opposed to the brightest region of the light source. A light reflecting member substantially surrounds the light source and the light passage member is formed with an opening facing the liquid crystal panel to expose a surface portion of the light passage member. The light source can either be incandescent light bulb or a cold-cathode discharge tube.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: April 21, 1987
    Assignee: Seiko Epson Corporation
    Inventor: Osamu Suzawa
  • Patent number: 4655261
    Abstract: A yarn cutting scissors device suitable for use for cutting a weft is disclosed which is capable of decreasing the frictional force occurring between a stationary blade and a movable blade when both blades are successively engaged in the cutting operation and effectively accomplishing the accessible engagement between both blades. The yarn cutting scissors device includes a leaf spring which has one end fixedly mounted on a support block and the other end on which a stationary blade is mounted, a shim washer arranged between the support block and the leaf spring, and a compression coil spring mounted on the support block to constantly urge a movable blade against the stationary blade, so that the stationary blade may be oscillated in the direction perpendicular to that of oscillation of the movable blade.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: April 7, 1987
    Assignee: Takahashi Seimitsu Kogyo Kabushiki Kaisha
    Inventors: Kouji Takahashi, Rikio Takahashi
  • Patent number: 4655264
    Abstract: A ring encircles produce placed on a work table. Tie ribbon is fed by pressure rollers around the inner periphery of the ring to form a complete loop. A first gripper clamps and retains the free end of the ribbon against a second gripper. The pressure rollers operate in reverse retracting excess ribbon about the produce. A friction clutch, operative only for reverse ribbon feeding, allows for ribbon slippage as the ribbon tightens around the produce. Then the second gripper clamps the other end of the ribbon against a twister head and a twister mechanism rotates the clamped ends of the ribbon about a common axis twisting the ribbon ends together. Shearing edges sever the engaged ribbon from a ribbon supply during twisting. The grippers and twister mechanism are at ends of the concentric support rods and tubes, and the grippers in clamping move along the rotational axis of the twister mechanism.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: April 7, 1987
    Assignee: Ben Clements & Sons, Inc.
    Inventor: Gerald G. Dilley
  • Patent number: 4653862
    Abstract: A multi-color liquid crystal display includes liquid crystal micro-shutters which open and close color filters arranged as dots in a mosaic or stripe pattern. Fine and clear color image display and color graphic display are realized in the device wherein the filters are within the LCD panel, being formed on one substrate and covered by the driving electrode.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: March 31, 1987
    Assignee: Seiko Epson Corporation
    Inventor: Shinji Morozumi
  • Patent number: 4653931
    Abstract: An electronic timepiece including timekeeping circuitry and a primary power source for converting externally applied energy to electrical energy for powering the timekeeping circuitry. The electronic timepiece also includes a secondary power source for storing energy from the primary power source and powering the timekeeping circuitry. A power controller, coupled to the timekeeping circuitry, primary power source and secondary power source controls the source of power of the timekeeping means so that upon the application of external energy to the primary power source, when the timepiece is not operating in the secondary power source and cannot power the timekeeping circuitry the timepiece begins operating substantially simultaneously.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: March 31, 1987
    Assignee: Shiojiri Kogyo Kabushiki Kaisha
    Inventor: Keigo Takeda
  • Patent number: D289076
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: March 31, 1987
    Assignee: Paul Associates, Inc.
    Inventor: Richard J. Paul
  • Patent number: D289167
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: April 7, 1987
    Assignee: Seiko Epson Kabushiki Kaisha
    Inventor: Hiroshi Otsuka
  • Patent number: D291442
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: August 18, 1987
    Assignee: Epson Corporation
    Inventor: Masaki Kurihara
  • Patent number: D294008
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: February 2, 1988
    Assignee: Hattori Seiko Co., Ltd.
    Inventor: Albert Skolnik