Patents Examined by Christopher Horgan
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Patent number: 5450178Abstract: In an image-forming apparatus, in which an electrostatic latent image on a photoconductive drum is developed by a toner accommodated in a container, a periodical exchange of carrier in a container is necessary. A method thereof includes steps of fitting a cartridge to the container, discharging all of an old mixture of toner and carrier from the container to the lower chamber, transferring fresh carrier from the carrier compartment into the container, and further, transferring fresh toner from the toner compartment into the container until a predetermined initial color density of the mixture is obtained.Type: GrantFiled: December 27, 1994Date of Patent: September 12, 1995Assignee: Fujitsu LimitedInventors: Masato Kawashima, Mamoru Watanabe, Masanao Nagakura, Hideyuki Nanba
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Patent number: 5450168Abstract: A charge carrier medium (41) is successively fed to a rotating (or reciprocating) photosensitive material (40) in opposite relation thereto. Making use of a beam or linear slit scanning exposure system or a planar exposure system enabling one frame to be scanned every 1/60 sec., for instance, the exposure timing is allowed to synchronize with the movement of the photosensitive material (40) and the feed of the charge carrier medium (14) to record images successively on the medium by either voltage-applied exposure or short-circuit exposure in which the charge carrier medium is pre-charged, whereby the images can be picked up as moving images. At the same time, the photosensitive material (40) is irradiated with light from the charge-clearing light source (45) to clear it of a residual charged image. Alternatively, such leakage of charges may be achieved by bringing an electrically conductive member into contact with the photosensitive material, charging it uniformly as by d.c. or a.c.Type: GrantFiled: March 9, 1992Date of Patent: September 12, 1995Assignee: Dai Nippon Printing Co., Ltd.Inventors: Minoru Utsumi, Hiroyuki Obata, Atsushi Takano, Takashi Aono
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Patent number: 5448268Abstract: A manual paper-loading device is disclosed. The device has a manual paper feeder for manually delivering the papers therein into an electrostatic printer without delivering the papers piled up in an automatic paper loading tray into the electrostatic printer. The paper-loading device disclosed has a roll having uniform radius in contrast to a conventional pick-up roll having nonuniform radii.Type: GrantFiled: December 26, 1991Date of Patent: September 5, 1995Assignee: SamSung Electronics Co., Ltd.Inventor: Hae-Suk Cho
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Patent number: 5448014Abstract: The present invention provides a new and effective method for the sealing and electrical testing of electronic devices; and particularly for surface acoustic wave devices. In accordance with the present invention, the cost and size of making hermetically sealed packages for electronic devices and of electrically testing each device is significantly reduced over the prior art by making use of mass simultaneous sealing and electrical connection at the wafer level, and by using substrates with hermetically sealed and electrically conductive via holes. Further, cost reduction is effected by making use of final electrical testing with wafer probe test techniques before dicing.Type: GrantFiled: January 27, 1993Date of Patent: September 5, 1995Assignee: TRW Inc.Inventors: Alvin M. Kong, James C. Lau, Steven S. Chan
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Patent number: 5444521Abstract: An image heating device which includes a heater; a temperature detecting element to detect a temperature of the heater; and a controller for controlling power supply to the heater, so that the temperature detected by the temperature detecting member is maintained at a predetermined temperature, and the controller controls the power supply to the heater, based on a rising speed of the temperature detected during a period from the time when the power supply to the heater is started till the time when the temperature reaches the predetermined temperature.Type: GrantFiled: July 13, 1992Date of Patent: August 22, 1995Assignee: Canon Kabushiki KaishaInventors: Yohji Tomoyuki, Shunji Nakamura, Yasumasa Ohtsuka, Kouichi Okuda, Eihiro Sakaki, Akira Hayakawa, Daizo Fukuzawa
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Patent number: 5444184Abstract: This invention relates to a method for transmitting communication signals and electrical power on a cable between two spaced apart locations, for example between a land based control center and an offshore installation. The communication signals are transmitted over at least two twisted pairs The conductors of each twisted pair are connected in parallel to constitute a power conductor. The communication and power transmissions are separated by transformers. The invention also relates to a cable for performing the method. The cable includes at least two power conductors, each being constituted by one pair of twisted insulated conductors, enclosed within an insulation sheath and outer armor and corrosion protection.Type: GrantFiled: February 10, 1993Date of Patent: August 22, 1995Assignee: Alcatel Kabel Norge ASInventor: Arild Hassel
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Patent number: 5442134Abstract: Disclosed is a semiconductor device such as a DIP (Dual In-line Package) or PGA (Pin Grid Alley), which has a plurality of leads protruding only from one surface of a flat package. A single independent lead protrudes from the surface of the package at the position which is aligned with a guide hole formed in the package. The independent lead has a bore which penetrates through the lead lengthwise and connects to the guide hole. A wiring member of an electronic part or the like placed in the bore via the guide hole is soldered to the inner wall of the independent terminal.Type: GrantFiled: December 1, 1994Date of Patent: August 15, 1995Assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Toyota Jidosha Kabushiki Kaisha, Kyocera CorporationInventors: Yukiyasu Miyazaki, Nobuyoshi Sugitani, Yoshiaki Shimojo
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Patent number: 5438162Abstract: An apparatus for isolating electronic devices from mechanical shock and thermal environments utilizes a metal outer protective shell surrounding the electronic device to be protected. Interposed between the protective shell and the electronic device are a thermal insulating layer, a layer of phase change material and a layer of mechanical shock absorbent material.Type: GrantFiled: September 2, 1993Date of Patent: August 1, 1995Assignee: AlliedSignal Inc.Inventors: Craig Thompson, Lawrence L. Eakin
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Patent number: 5436407Abstract: An improved metal semiconductor package is described. The semiconductor package includes a lead frame with a top side and a bottom side. A semiconductor is positioned on the top side of the lead frame. Bond wires electrically couple the lead frame to the semiconductor die. A metallic base is positioned at the bottom side of the lead frame. A metallic cap is positioned over the top side of the lead frame. The metallic cap includes a central aperture that is aligned with the semiconductor die. An external plastic seal is used to join the metallic base, lead frame, and metallic cap. The external plastic seal may be in the form of a perimeter seal or a body seal.Type: GrantFiled: June 13, 1994Date of Patent: July 25, 1995Assignee: Integrated Packaging Assembly CorporationInventors: Gerald K. Fehr, Victor Batinovich
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Patent number: 5434358Abstract: A ceramic feedthrough for a package for an electronic device provides a plurality of electrical connections through an opening in the package. A method of making the feedthrough and of packaging the electronic device includes electrically conductive paths that are formed from a metal paste applied between green sheets that are joined and cofired to form a ceramic body. Vias extend from an exterior surface of the ceramic body to the paths to complete the electrical connection from outside the package to inside the package. A density of 50 paths per inch or greater may be achieved. The ceramic body may be hermetically sealed into an opening in the package and the body may have a peripheral extension to facilitate attachment of the feedthrough to the package.Type: GrantFiled: December 13, 1993Date of Patent: July 18, 1995Assignee: E-Systems, Inc.Inventors: Timothy J. Glahn, Mark J. Montesano
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Patent number: 5430525Abstract: Disclosed is an image processing apparatus having plural types of input devices (scanners, a still-video camera, a film scanner, etc.) for inputting image data. The type of input device which has entered the image data is identified, and an image judging processing method is decided from plural types of such methods based upon the type of input device identified. In accordance with the image judging processing method decided, the identity is judged between the image data inputted from the input device of the type identified and a specific image.Type: GrantFiled: November 27, 1991Date of Patent: July 4, 1995Assignee: Canon Kabushiki KaishaInventors: Eiji Ohta, Masahiro Funada, Ken-ichi Ohta, Yutaka Udagawa, Yoichi Takaragi
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Patent number: 5430257Abstract: An apparatus for mounting a waveguide window or conduction member into a housing such that a smooth gradient of the coefficient of thermal expansion exists between the housing and the window or conduction member, thereby reducing the internal stress which results from ambient temperature variations. The apparatus comprises a frame member for mounting a feedthrough member into a housing. The frame member includes a buffer section having a plurality of sections, each section having a material which progressively varies the coefficient of thermal expansion. The frame member further includes additional stress relief features and structural elements facilitating manufacture and assembly of the apparatus.Type: GrantFiled: August 12, 1992Date of Patent: July 4, 1995Assignee: TRW Inc.Inventors: James C.-K. Lau, Kenneth Lui, James A. Hathaway, Ronald A. DePace
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Patent number: 5430528Abstract: In a developing apparatus in which a developer containing magnetic particles is carried on a developer carrier to form a magnetic brush and a latent image on a latent image carrier opposing the developer carrier is developed by the magnetic brush, the magnetic brush bristle height and the developing gap are controlled to keep density of a first color image and density of a second and the ensuing color images in color development at predetermined values or more, thereby maintaining quality of printed images stably. There are also provided method and apparatus of measuring the bristle height of the magnetic brush of the developing apparatus, which bristle height is a parameter indispensable for control of the above developing condition, under the dynamic condition that the developing roller rotates.Type: GrantFiled: June 29, 1990Date of Patent: July 4, 1995Assignees: Hitachi, Ltd., Hitachi Koki Co. Ltd.Inventors: Takao Kumasaka, Yuzuru Simazaki, Shigetaka Fujiwara, Isamu Komatsu, Youji Hirose
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Patent number: 5428426Abstract: The present invention provides the image forming system in which, when an image bearing member or a process cartridge including an image bearing member therein is mounted within an image forming system having a shiftable image forming device, the image bearing member can receive a driving force from the image forming device. Consequently, it is possible to reduce the number of positioning locations between the image forming system and the image bearing member.Type: GrantFiled: October 26, 1994Date of Patent: June 27, 1995Assignee: Canon Kabushiki KaishaInventors: Mitsugu Inomata, Hisayoshi Kojima, Toshiki Nagase, Toshiaki Miyashiro
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Patent number: 5426263Abstract: An electronic assembly has a double-sided leadless component (10) and one or more printed circuit boards (30, 32). The component has a plurality of electrical terminations or pads (18) on both opposing major surfaces. Each of the printed circuit boards has a printed circuit pattern that has a plurality of pads (34, 36) that correspond to the electrical terminations on both sides of the double-sided leadless component. The electrical terminals on one side of the component are attached to the pads on the first substrate and the electrical terminals on the other side of the leadless component are attached to the pads on the second substrate. The printed circuit boards are joined together to form a multilayered circuit board (44) so that the double-sided leadless component is buried or recessed inside. The component is attached to the pads of the printed circuit board using solder.Type: GrantFiled: December 23, 1993Date of Patent: June 20, 1995Assignee: Motorola, Inc.Inventors: Scott G. Potter, Michael J. Watkins
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Patent number: 5424807Abstract: The present invention relates to an image processing apparatus and a method therefor for processing an input image and recording it on a recording medium. In particular, a predetermined original is registered in order to prevent bank bills or securities from being forged by color copying so that an original which is determined to be in coincidence with the registered original is subjected to a different processing from a usual processing.Type: GrantFiled: September 27, 1994Date of Patent: June 13, 1995Assignee: Canon Kabushiki KaishaInventor: Hiroshi Ohmura
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Patent number: 5422706Abstract: A photoconductor is disclosed, which comprises a conductive cylindrical support which is substantially not hollowed, the conductive cylindrical support having a drive transferring mechanism coaxially and unifiedly provided on at least one of the end portions thereof, the conductive cylindrical support having a photoconductive layer on the outer periphery. The moment of inertia I (g . cm.sup.2) of the substantially not-hollowed conductive support is in the range of 0.4.ltoreq.I.ltoreq.140 (g . cm.sub.2), the diameter thereof being in the range from 0.5 to 2.0 cm. When the relation of C/(S . .omega.).ltoreq.0.4 (where S (cm.sup.2) is the square measure of the portion of the photoconductive layer on the photoconductor; C (cal/.degree.C.) is the heat capacity of the substantially not-hollowed cylindrical support; and .omega. (rad/s) is the rotating speed in development) is satisfied, high quality images can be readily and stably obtained without damages of the drive system.Type: GrantFiled: October 23, 1991Date of Patent: June 6, 1995Assignees: Kabushiki Kaisha Toshiba, Tokyo Electric Co., Ltd.Inventors: Koichi Tsunemi, Masahiro Hosoya, Mitsunaga Saito, Hideyuki Nishizawa, Yoshimitsu Otaka, Mitsuharu Endo
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Patent number: 5422433Abstract: A shielding enclosure (10) shields an electronic circuit (12) from radio frequency interference (RFI) or electromagnetic interferences (EMI). The shielding enclosure is an electrically conductive polyhedron having at least one aperture (18). The enclosure has a closable member (20), which is a part of the polyhedron, arranged to enable the aperture to be opened and closed. The polyhedron can be an electrically conductive metal enclosure that covers the shielded circuit, and is mechanically and electrically attached to the circuit. The aperture has an integral flap (21) connected to the enclosure at one end (23), so that it is able to be opened and closed to reveal the shielded circuit. Any openings remaining in the polyhedron when the aperture is closed are less than or equal to 1/4 wavelength of the interfering radio frequency energy.Type: GrantFiled: November 15, 1993Date of Patent: June 6, 1995Assignee: Motorola, Inc.Inventors: Ruben Rivera, Timothy J. Dinwiddie
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Patent number: 5416569Abstract: Devices having conductive paths are fabricated by electrographically transferring conductive toner to an insulative copy sheet imaging desired conductive paths graphically represented by an electromagnetic signal. A system for making devices having electrically conductive paths corresponding to those graphically represented on a mask has an electrographic machine having electrically conductive toner and a bonder for bonding the electrically conductive toner to a copy sheet. An insulative copy sheet is configured to pass through the electrographic machine bonder and receive the electrically conductive toner only on paths corresponding to those graphically represented on the mask.Type: GrantFiled: January 4, 1991Date of Patent: May 16, 1995Inventor: Michael Goldberg
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Patent number: 5416458Abstract: An electrical power distribution transformer of the delta/wye configuration wherein the wye secondary windings are connected in a zigzag configuration and distributed among the legs of a multi-legged transformer core to achieve substantial attenuation of flux produced by undesired triplen harmonic (third and its multiples) currents arising from non-linear loads. The transformer also achieves a substantial reduction in capacitive coupling between the primary and secondary winding by means of an electrostatic shield positioned between the primary and secondary windings and by means of a metallic ground plane positioned as a barrier between the primary and secondary terminals.Type: GrantFiled: April 25, 1991Date of Patent: May 16, 1995Assignee: General Signal CorporationInventors: Wallace W. Menke, Frank B. Croft, John J. Nay