Patents Examined by Nathan W. McCutcheon
  • Patent number: 4763971
    Abstract: A solar rays radiation device for medical treatment includes an automatic solar rays collecting and transmitting device on an automobile. Solar rays collected by the automatic solar rays collecting and transmitting device are transmitted through an optical conductor cable into the automobile and emitted from the end portion of the optical conductor cable to treat a person in the automobile.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: August 16, 1988
    Inventor: Kei Mori
  • Patent number: 4761061
    Abstract: A method for fabrication of an electrochromic device having perfect tight closure of the cell, wherein two or more banks constituting an external frame for the substrates are formed with use of a sealing material at the peripheral positions on the surface of the first or second substrate where the electrode has been formed; then a gel-like electrolytic solution is placed on the surface of the first substrate; thereafter the second substrate is disposed with the surface side thereof where the electrode has been formed being opposed to the surface side of the first substrate where the electrode has been formed; and finally both first and second substrates are laid one on the other to be contact-bonded, and wherein the two or more banks are composed of one or more cured inner bank and an uncured outer bank; when the uncured outer bank is in the two-stage structure having a height taller than that of the inner bank, and is of such two-stage structure composed of a cured bank having a height shorter than that of t
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: August 2, 1988
    Assignee: Asahi Glass Company Ltd.
    Inventors: Hisashi Nishiyama, Seiichi Miyasaka, Tadatoshi Kamimori, Mamoru Mizuhashi, Akihiko Yoshihara
  • Patent number: 4759613
    Abstract: An acoustooptic modulator for generating a modulated diffracted beam 14 from a laser beam 10 by refractive Bragg diffraction from a longitudinal compressional acoustic wave directed into a germanium block 21 by a transducer 2.By tilting the end face 26, 30, so that the angle of incidence is 44 degrees, all the acoustic wave energy is reflected as a shear wave S, at 27 degrees, and is then dissipated in layers 24 of lithium or lead on the upper and lower surfaces 19, 22, of the block. The end face 26 is also disposed obliquely in plan angle to further reduce retroreflection.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: July 26, 1988
    Assignee: U.S. Philips Corp.
    Inventor: Alan J. Fox
  • Patent number: 4758068
    Abstract: The invention relates to a method and an apparatus for reducing the diameter tolerance of a laser beam. A lens (3) is positioned so that one of the focal planes of the lens (3) is in the region of a limit (5) of the Rayleigh range of the beam (19). The lens (3) forms a second beam waist at a position (6), where a modulator (10) is placed. The beam (21) then passes through beam expansion apparatus (11,12,13) before being collimated by a lens (14). The collimated beam (25) is then focussed to a third beam waist at the recording drum (17), via a lens (18) and mirror (15).
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: July 19, 1988
    Assignee: Crosfield Electronics Limited
    Inventors: John E. Aughton, James H. Gray
  • Patent number: 4755034
    Abstract: An electrostatic precipitator is provided in a light valve of the Schlieren dark field type. The electrostatic precipitator comprises two conductive surfaces within the fluid reservoir of the light valve. One of these surfaces may be the filter housing (81), and the other may be a metal coating (105) which is applied to the inner glass surface of the rear housing (53) of the light valve. By applying a constant d.c. potential across these two conductive surfaces, a resinous or lacquer build-up occurs which is composed of the fine colloidal particulate wear material and a fluid related component which are produced as a result of the normal operation of the light valve. Both the wear material and the fluid related component are too fine to be filtered by mechanical means. Because the wear material and the fluid related component form an adherent resinous material which bonds to the negative electrode, these particulates are permanently removed from the fluid.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: July 5, 1988
    Assignee: General Electric Company
    Inventor: Howard E. Towlson
  • Patent number: 4755053
    Abstract: Apparatus and method are provided for reducing processing time for aligning two parts by machine vision. The prior art approach of utilizing a substrate (b 14) with two spaced-apart targets (16a, 16b) and a top-plate (10) with two primary alignment openings (b 12a, 12b) spaced apart the same distance as the targets is improved by providing a set of fiducials (a pair of secondary openings (18a, 18b) or a pair of marks (18'a, 18'b) on the surface) in the top-plate. As a consequence of the novel approach, the vision system is not confused by the similar reflectivities of the target and the top-plate as the substrate and top-plate are brought into contact. Accordingly, alignment may be readily rechecked after assembly.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: July 5, 1988
    Assignee: Hewlett-Packard Company
    Inventors: Mitchell E. Levinson, Thomas T. Frankie
  • Patent number: 4750817
    Abstract: A solid-state multi-color electrochromic display cell having a water soluble organic electrochromic chemical dissolved in water associated with an ionically conducting polymer of a solid electrolyte. The water may be present in a water containing polymer or may be water of emulsion of a non-water containing polymer. The solid electrolyte layer has one side immediately adjacent a display electrode and the other side adjacent a cell separator.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: June 14, 1988
    Assignee: Eltron Research, Inc.
    Inventor: Anthony F. Sammells
  • Patent number: 4741602
    Abstract: A spatial light modulator consists of an electron beam source formed within a vacuum envelope and an electro-optic crystal or organic film whose optical property changes corresponding to the charge stored on the surface thereof. The electro-optic crystal or organic film is fastened to the substrate through adhesive or the transparent conductive film which is covered with a low-vapor-pressure material.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: May 3, 1988
    Assignee: Hamamatsu Photonics Kabushiki Kaisha
    Inventors: Tsutomu Hara, Yoshiji Suzuki
  • Patent number: 4733407
    Abstract: The invention relates to a charge-coupled device, in which the channel is provided with two or more separation regions for obtaining a desired charge subdivision, for example, for a transversal filter. Due to asymmetry in the potential distribution between the outer subchannels and the central subchannels, an inaccuracy occurs in the charge distribution, which according to the invention is eliminated for the major part by locally providing the separation channels bounding the outer subchannels with an interruption.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: March 22, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Jan W. Pathuis, Theodorus F. Smit
  • Patent number: 4712879
    Abstract: The specification discloses an electrochromic mirror including a glass substrate, an anodic nickel hydroxide layer 300 to 600 angstroms thick, a solid electrolyte layer 1000 to 1500 angstroms thick, a cathodic tungsten oxide layer 600 to 1200 angstroms thick and a layer of reflective/conductive material.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: December 15, 1987
    Assignee: Donnelly Corporation
    Inventors: Niall R. Lynam, Kiok K. Seah
  • Patent number: 4706036
    Abstract: A differential amplifier is provided which has a low systematic offset voltage and a small variation in quiescent current with respect to variations in processing and temperature while providing low input referred noise and good output drive capability. Each transistor of a differential input pair of transistors is coupled to a plurality of series-connected transistors which are fabricated with substantially equal control electrode dimensions to form composite load tranistors. An output stage having conventional source and sink transistors is coupled to the differential pair of transistors. The sink transistor is implemented as a composite transistor by a plurality of parallel-connected transistors, each also having substantially the same control electrode dimension. Since all the ratioed transistors have equal control electrode dimensions, variations over processing and temperature are minimized.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: November 10, 1987
    Assignee: Motorola, Inc.
    Inventor: Michael E. Rebeschini