Patents Represented by Attorney, Agent or Law Firm Fay, Sharpe, Beall, Fagan, Minnich & McKee
  • Patent number: 6000607
    Abstract: An IC card reader/writer having a body which includes an IC insertion slot and an operation display section. The body is separable into an upper cover and a lower portion. The upper cover and the lower portion are displaced from each other to form a step on the side of the body formed with the IC card insertion slot. A recessed portion recessed from the step is formed on the portion of the body having the IC card insertion slot. The surface of the upper cover is curved upwardly in a direction away from the IC card insertion slot in such a manner as to increase the thickness progressively toward the side of the body far from the IC card insertion slot, and a display section is located on the slope of the curved portion. The operating area of the IC card reader/writer is provided with function keys.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: December 14, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Ohki, Atsuhiko Urushihara, Jun Furuya, Shigeyuki Itoh, Hiroki Kitagawa, Takao Oosawa
  • Patent number: 6002694
    Abstract: A billing system for use in a chargeable program broadcasting is capable of reliably billing a subscriber for program reception while preventing unauthorized reception thereof. A receiving terminal includes a primary terminal 100 and a secondary terminal 150. The primary terminal 100 receives a compressed video signal and confirms by an error checker 113 thereof whether there is a transmission error and bills, by means of a billing device 114 thereof, the receiving subscriber on the basis of an error information and a program information, etc., separated from the video signal by a separation circuit 112. The compressed video data is time-axis multiplexed with a terminal identifying code and a key signal and transmitted to the secondary terminal 150. In the secondary terminal 150, a bill for the subscriber is confirmed by the terminal identifying code and the compressed data is decoded by a decoder circuit 166 thereof.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: December 14, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiko Yoshizawa, Hitoaki Owashi, Hiroyuki Hayakawa, Tadasu Otsubo, Kyoichi Hosokawa
  • Patent number: 5998944
    Abstract: An apparatus and method for controlling a lifting magnet (12) of a materials handling machine (10) to eliminate arcing between contacts (70-80) within the magnet controller (26) as is well as is large voltage spikes. The controller (26) selectively excites the shunt field windings (66,68) of a direct current generator (22). The magnitude and direction of the current passing through the shunt field windings (66,68) is varied by the magnet controller (26) to control the magnitude and polarity of the voltage at the generator output (23). The armature (60) of the generator (22) is rotatably driven by a hydraulic motor at an essentially constant speed to minimize voltage variations at the output (23) of the generator (22). At least the drop cycle is controlled through use of a current transducer (200) that senses current flowing to the lifting magnet so that the electronic controller is able to control the flow of current to the lifting magnet based upon the sensed current in the magnet circuit.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 7, 1999
    Assignee: Caterpillar Inc.
    Inventors: Ronald W. Clutter, Kenneth J. Chlad, Timothy L. Cooper, Charles A. Robinson
  • Patent number: 5999197
    Abstract: A data processor comprising: a bus control circuit adapted to be interfaced with a synchronous DRAM which can be accessed in synchronism with a clock signal; a plurality of data processing modules coupled to said bus control circuit for producing data and addresses for accessing a memory; and a clock driver for feeding intrinsic operation clocks to said data processing modules and for feeding the clock signal for accessing said memory in synchronism with the operations of said data processing modules to be operated by the operation clock signals, to the outside.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: December 7, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Jun Satoh, Kazushige Yamagishi, Keisuke Nakashima, Koyo Katsura, Takashi Miyamoto, Mitsuru Watabe, Kenichiroh Ohmura
  • Patent number: 5997195
    Abstract: A tube-shaped stub (5) of an end piece (2) is inserted into ribbon tube core (1). The stub (5) has, adjacent to its free end, hook-like projections (11). This achieves secure anchoring of the end piece (2) in the core (1), even under changing climatic conditions.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: December 7, 1999
    Assignee: Pelikan Produktions AG
    Inventor: Markus Burgin
  • Patent number: 5999409
    Abstract: The pattern line width of a coil is partially widened in a predetermined dimension and wiring patterns of a coil on the surface side and a coil on the rear side are arranged so as not to be in overlapped positions. Consequently, a direct current resistance of the coil can be reduced and an adverse influence by a self resonance of the coil on a communication can be reduced.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: December 7, 1999
    Assignees: Hitachi, Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Kimiaki Ando, Takehiro Ohkawa, Kazuo Kaneko
  • Patent number: 5996736
    Abstract: A ladder locking device used for securing ladders on truck and van racks with the ability to tighten and lock the ladder in place, providing safety and theft deterrent for the consumer. The ladder locking device includes a handle, a hook, and a locking arm assembly including a hook, and a threaded key mechanism. The hook accommodates a ladder rack. The handle can include a threaded tightening shaft which rotates through a threaded tightening shaft receiver in the locking arm assembly, moving the locking arm assembly hook against a ladder rung. The locking arm assembly can be extended to accommodate up to five ladders. A key is inserted into and rotates the threaded key mechanism, thus rotating a threaded shaft attached to the threaded key mechanism. Locking pins within the ladder locking device are then pushed downward by spring mechanisms and by the threaded shaft. The locking pins then extend through holes in the locking arm assembly, locking the locking arm assembly in place.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: December 7, 1999
    Assignee: Danny Stankiewicz
    Inventor: Danny Stankiewicz
  • Patent number: 5997629
    Abstract: A method of solidifying a waste or soil composition containing at least one contaminant species which comprises adding to said composition binder and optionally water, mixing the binder into the waste or soil material to form a mixture thereof and simultaneously during formation of the mixture and/or subsequently after formation of the mixture, treating the mixture with sufficient carbon dioxide to achieve setting and subsequent hardening of said mixture so as to produce a solidified waste or soil composition.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: December 7, 1999
    Assignee: Imperial College of Science, Technology and Medicine
    Inventor: Colin Hills
  • Patent number: 5996670
    Abstract: A balancing device (11) has a first balance pulley (20) provided in a hoisting drum (3) and a second balance pulley (40) connected to a coil spring (31). These pulleys are connected through a tension wire (50). The first balance pulley has a main pulley portion (25) for taking-up the tension wire at the beginning of a feed-out process from a fully opened position, and a zero-point return pulley portion (26) for taking-up the tension wire from halfway. The zero-point return pulley portion has an outer circumferential shape in which the tension wire passes the pulley axial center at a fully shut position. The second balance pulley (40) has a cylindrical portion (46) for feeding-out the tension wire at the beginning of the feed-out process from the fully opened position, and a conical portion (47) for feeding-out the tension wire from halfway. The conical portion has a shape in which its diameter is smaller on the cylindrical portion side.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: December 7, 1999
    Assignee: Yamato Tape Co., Ltd.
    Inventor: Hisahiro Igarashi
  • Patent number: 5994840
    Abstract: The envelope (6) of a light source is at least partly coated with electrochromic material (20), sandwiched between two conductive layers (21,22). A voltage applied to the electrochromic material by way of the conductive layers varies the intensity and/or color of the light from the source.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 30, 1999
    Assignee: General Electric Company
    Inventors: Graham M. Forsdyke, Stuart A. Mucklejohn
  • Patent number: 5995310
    Abstract: A magnetic disk device of embedded-servo type is capable of performing dummy operation for suppressing waveform degradation of signal reproduced by magnetic heads at a high speed with high reliability. When a waveform deformation occurs in a No.0 head, a controller changes over the No.0 head to a No.1 head operating normally, whereupon a cylinder portion for which dummy operation is to be performed is sought on the basis of the servo information supplied from the No.1 head. The cylinder portion destined for the dummy write operation contains servo information at timing positions that are the same for the individual magnetic heads. When passing of the No.1 head over the cylinder portion is confirmed, the No.1 head is changed over to the No.0 head for performing dummy write operation for suppressing the waveform deformation of the reproduce signal outputted from the No.0 head. Before the timing for succeeding information, the No.1 head is restored-by issuing a head change command signal.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: November 30, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hidekazu Honda, Koichi Ono, Haruhiko Hosokawa, Katsuhiro Tsuneta
  • Patent number: 5991545
    Abstract: Herein disclosed is a microcomputer MCU adopting the general purpose register method. The microcomputer is enabled to have a small program capacity or a high program memory using efficiency and a low system cost, while enjoying the advantage of simplification of the instruction decoding as in the RISC machine having a fixed length instruction format of the prior art, by adopting a fixed length instruction format having a power of 2 but a smaller bit number than that of the maximum data word length fed to instruction execution means. And, the control of the coded division is executed by noting the code bits.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 23, 1999
    Assignees: Hitachi, Ltd., Hitachi VLSI Engineering Corp., Hitachi Microcomputer System Ltd.
    Inventors: Shumpei Kawasaki, Eiji Sakakibara, Kaoru Fukada, Takanaga Yamazaki, Yasushi Akao, Shiro Baba, Toshimasa Kihara, Keiichi Kurakazu, Takashi Tsukamoto, Shigeki Masumura, Yasuhiro Tawara, Yugo Kashiwagi, Shuya Fujita, Katsuhiko Ishida, Noriko Sawa, Yoichi Asano, Hideaki Chaki, Tadahiko Sugawara, Masahiro Kainaga, Kouki Noguchi, Mitsuru Watabe
  • Patent number: 5987589
    Abstract: A microcomputer that is easy to use and connected direct to such memories as dynamic and static RAM's and to other peripheral circuits. The microcomputer has strobe signal output terminals CASH*, CASL* and RAS* for direct connection to a dynamic RAM, and chip select signal output terminals CS0* through CS6* for outputting a chip select signal in parallel with the output from the strobe signal output terminals. The microcomputer further includes address output terminals for outputting a non-multiplexed or multiplexed address signal as needed, and data I/O terminals for selectively outputting the address signal to comply with a multiple-bus interface scheme.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: November 16, 1999
    Assignees: Hitachi Ltd., Hitachi Microcomputer System Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Shumpei Kawasaki, Kaoru Fukada, Mitsuru Watabe, Kouki Noguchi, Kiyoshi Matsubara, Isamu Mochizuki, Kazufumi Suzukawa, Shigeki Masumura, Yasushi Akao, Eiji Sakakibara
  • Patent number: 5984212
    Abstract: A method and apparatus for the manufacture of extremely fine powders, which are ground wet in a mechanical grinder (1) and are subsequently dried. To obtain extremely fine sizes, the powders are ground wet as components of a suspension in the mechanical grinders. An air vortex grinder (4) is used as a dryer to obtain maximum agglomeration-free drying of the powders. The dried powder leaves the drying chamber (5) of the air vortex grinder (4) through an upper product discharge (8) and is fed through a line (9) to a filter cyclone (11). The suspension leaves the mechanical grinder (1) and is blown into the drying chamber (5) of the dryer (4).
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Altenburger Maschinen Jackering GmbH
    Inventor: Michael Andreae-Jackering
  • Patent number: 5983448
    Abstract: The present invention relates to a suction cleaning device which provides liquid dispensing, scrubbing, squeegeeing, and suction drying in a single, compact, self contained device. The suction cleaning device includes a cleaning device housing, a handle connected to the housing, an absorbent cleaning member mounted on the housing and movable between an extended and a retracted position, and a pair of squeegee blades. The squeegee blades are mounted in a squeegee tray, and at least one of the squeegee blades is movable between an extended and a retracted position in response to changes in the relative angle between the housing and the surface being cleaned. The movable squeegee blade is spring-biased into the extended position by one or more springs such as leaf springs. The device includes a suction system which draws the water from the floor surface which has been cleaned into a tank mounted on the housing which collects the liquid from the floor surface.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 16, 1999
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Michael F. Wright, Laurie M. Shumaker, Craig M. Saunders, Joseph Lazarra, Mark Cipolla, Glenn E. Specht, Richard C. Farone, Jeffrey M. Kalman, Terry L. Zahuranec, Gary J. Dieterich
  • Patent number: 5987460
    Abstract: Because the whole image of a retrieved document group cannot be viewed, next retrieval request after one retrieval attempt has been determined only perceptually. Therefore, displaying a means for displaying topic words on a display means, extracting a group of words characteristically appearing in a retrieved document group on request from a user, further examining the relation between topic words, and preparing a graph using the topic words as nodes, the whole image of the retrieval results is displayed on the means for displaying topic words. Additionally, by selecting an interesting word or a word with no interest on a displayed graph of topic words, the user can design a subsequent retrieval strategy effectively.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiki Niwa, Hirofumi Sakurai
  • Patent number: 5985215
    Abstract: In an analyzing apparatus of the present invention, sample racks, in each of which a plurality of sample containers are held, are transferred from a rack feeding unit to a discrimination unit for discriminating a type of each sample container. After the discrimination unit, a plurality of analyzing units are installed along a transfer line, and pipetters of different types are provided in the respective analyzing units. The discrimination unit detects information on the length and the width of each sample container held in each sample rack by using an optical detector. A control part selects one of the analyzing units, suitable for analyzing the sample container of which type was discriminated, based on the information detected by the discrimination unit, and transfers the sample container of which type was discriminated, to a sample pipetting position in the selected analyzing unit.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: November 16, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Taku Sakazume, Hiroshi Mitsumaki, Tomonori Mimura, Kazumitsu Kawase
  • Patent number: 5985402
    Abstract: In a thin film magnetic disk, a micro projections are formed on a substrate in a circumferential direction. A height of the micro projections is several nm to several tens of nm and a density of the micro projections is several hundred pcs/mm to several tens of thousands of pcs/mm.sup.2. With this arrangement, a magnetic disk fulfilling a head floating characteristic of a narrow space and further fulfilling a mechanical anti-sliding characteristic such as a contact start-stops characteristic and a head stickiness and the like is provided so that high reliability is attained. In the thin film magnetic disk, a bearing ratio curve of a sectional shape measured in a radial direction of the textured substrate has a bearing ratio of 0.1 to 10% at the surface layer (a cutting height of 5 to 10 nm). In this way, a pressure receiving area under a sliding of the magnetic head is increased.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: November 16, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Takao Nakamura, Takaaki Shirakura, Hiroyuki Kataoka
  • Patent number: 5985422
    Abstract: Description of a thermo-transfer color ribbon with (a) a carrier, (b) a layer of a first thermo-transfer color formed on one side of the carrier, containing a luminescent pigment and (c) a layer of a second thermo-transfer color formed on the first thermo-transfer color layer containing a non-luminescent pigment, whereby, where needed, additional layers may be located between the carrier and the layer of the first thermo-transfer color and/or the layer of the first and the second thermo-transfer color. Said thermo-transfer ribbon is characterized in that in the remission spectrum of the non-luminescent pigment, in the wave length range of the light emitted by the luminescent pigment there is a remission maximum or an ascending flank of remission. The thermo-ransfer ribbon furnishes print-outs of high optical density without affecting the luminesce output of the luminescent pigment.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: November 16, 1999
    Assignee: Pelikan Produktions AG
    Inventor: Heinrich Krauter
  • Patent number: D417602
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: December 14, 1999
    Assignee: The Testor Corporation
    Inventor: Adam P. Morrison