Patents Represented by Attorney, Agent or Law Firm Fay, Sharpe, Beall, Fagan, Minnich & McKee
  • Patent number: 6032266
    Abstract: A network system includes a plurality of networks, a first internetwork apparatus having a plurality of first ports each connected to the plurality of networks, a second internetwork apparatus having a plurality of second ports each connected to the plurality of networks, and a data transmission path connected to the first and second internetwork apparatuses to transmit data mutually between the first and second internetwork apparatuses. In the normal state, each of the plurality of first ports is caused to be able to transmit and receive data to and from one of the plurality of networks and the plurality of second ports are caused not to be able to receive data from the plurality of networks and to be able to transmit data to the plurality of networks.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: February 29, 2000
    Assignees: Hitachi, Ltd., Hitachi Microcomputer System, Ltd.
    Inventors: Shinya Ichinohe, Norihide Noyama, Tokuhiro Niwa, Masao Nakamura
  • Patent number: 6029007
    Abstract: A digital semiconductor integrated circuit is equipped with: a digital signal input circuit; an analog signal input circuit made receptive of an analog signal for feeding out a digital signal corresponding to the analog signal; and a common external terminal connected commonly with the input terminals of the digital signal input circuit and the analog signal input circuit. By a suitable switch circuit, the common external terminal can be used as either an analog signal input terminal or a digital signal input terminal. As a result, the number of the external output terminals required can be reduced.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: February 22, 2000
    Assignee: Hitachi, Ltd.
    Inventor: Shirou Baba
  • Patent number: 6017424
    Abstract: A surface reformation method of a high polymer material irradiates an excimer-laser beam to only a predetermined area in which electronic parts and the like are temporarily immobilized by a liquid on a substrate which has a high polymer layer on the surface. The wettability of the liquid for temporary immobilization only with respect to the predetermined area is improved. After the electronic parts are temporarily immobilized on the substrate by using the method, the electronic parts can be durably soldered by fluxless reflow soldering.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: January 25, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Tsutomu Shibuya, Kaoru Katayama, Mitugu Shirai, Shinichi Kazui, Hideaki Sasaki, Yasuhiro Iwata
  • Patent number: 6015356
    Abstract: The present invention is directed to improved multi-layer golf ball compositions having a core, an inner cover and an outer cover and the resulting regulation balls produced using these compositions. In this regard, a smaller and lighter core is produced and metal particles, or other heavy weight filler materials, are included in the inner cover compositions. This results in a molded golf ball exhibiting enhanced interior perimeter weighting. the heavy weight filler particles, such as powdered metals, are included in a relatively thick inner cover layer (or mantle) formed from an ionomer resin of a solid, three-piece multi-layered golf ball. The size and weight of the core can thereby be reduced in order to produce an overall golf ball which meets, or is less than, the 1.62 ounce maximum weight limitation specified by the United States Golf Association.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: January 18, 2000
    Assignee: Lisco, Inc.
    Inventors: Michael J. Sullivan, John Nealon, Mark Binette, Dennis Nesbitt
  • Patent number: 6012200
    Abstract: An upright vacuum cleaner includes a nozzle base (12) with at least one suction opening (60) formed therein. A rotatable brushroll (64) is positioned adjacent to the suction opening (60) for agitating a surface being cleaned. A suction source (54) is housed within the nozzle base (12). A dust cup assembly (70) is releasably connected to the nozzle base (12). The dust cup assembly (70) connects the suction source (54) and the suction opening (60) in fluid communication. A filter assembly (90) including a handle (101) is positioned between the dust cup assembly (70) and the suction source (54) to block the passage of dirt and dust to the suction source (54). A handle (10) is pivotally connected to the nozzle base (12) and includes an upper handle grip (22) including a hooked portion (24) for hanging the upright vacuum cleaner. First and second wings (74a, 74b) extend from opposite lateral sides of the dust cup cover (72) to facilitate the separation of the dust cup assembly (70) and the nozzle base (12).
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: January 11, 2000
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John S. Murphy, Robert Matousek, Richard C. Farone, David M. Brickner, Jeffrey M. Kalman, Craig M. Saunders, Michael F. Wright
  • Patent number: 6012124
    Abstract: With respect to the disk drives provided power from a single power source in a disk drive system, start up power is first supplied to a first start-up group of the disks, preferably comprising all of the master disks, with the size of the group being selected so that the required current does not exceed the capacity of the power source. When the disk drives of the first group have substantially reached steady state, start-up is conducted with respect to a second start-up group of the disk drives so that the current required during start-up for the second group and the current required for steady state drive of the first start-up group does not exceed the capacity of the power source. With respect to each start-up group, the number of disk drives is the maximum integer value and decreases or remains the same with respect to subsequent start-up groups.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: January 4, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihisa Kamo, Hitoshi Kakuta, Atsushi Tanaka, Yosuke Seo
  • Patent number: 6011353
    Abstract: This invention consists of an improved design and assembly process the for manufacture of a single ended quartz (SEQ) lamp for projection applications. The lamp (A) includes a hermetically sealed envelope (10) which houses a filament (15). A ceramic base (12) receives the envelope in a receiving slot (26). Cement fill in the slot, around the hermetic seal, bonds the envelope to the base. Ends (18,20) of the filament extend into the seal region (22) and are electrically connected to a power source by three-part leads (14,16). This invention consists of a much simpler two-pin prefocus ceramic base SEQ lamp design that is made with fewer parts and is much easier and faster to assemble to enable much reduced labor and cost. Also, the ceramic base is smaller and exposes more of the quartz lamp seal to the surroundings to enable more effective cooling during lamp operation to prevent lamp failures from overheated seals.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: January 4, 2000
    Assignee: General Electric Company
    Inventors: Bernard W. Rachel, Donald E. Hatfield
  • Patent number: 6009438
    Abstract: Browsing data in the format selected by a user can be created by using the existing art. Video and audio can be browsed by designating only the portion to be browsed. A system for creating a compound document is used so as to create browsing data from application data. When audio data and videa data are played, a concept of a virtual page is introduced so that they can be browsed in page units.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: December 28, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Kawasaki, Tetsuo Tanaka, Yoshiaki Morimoto, Kunihisa Nitta, Kimio Tanaka
  • Patent number: 6005537
    Abstract: The liquid-crystal display control apparatus provided by the present invention comprises a display RAM unit 21 for storing character codes, character-generator RAM and ROM units 22 and 23 for storing character font patterns and a segment RAM unit 24 for storing picture patterns such as marks and icons. When displaying a character, the following display control is carried out. First of all, a character code is read out from the display RAM unit 21 at a display address generated by a display-address counter 25. The character code is then used in conjunction with a raster address output by a line-address counter 26 for reading out a character font pattern from the character-generator RAM unit 22 or the character-generator ROM unit 23. When displaying a picture pattern such as a mark or an icon, on the other hand, the following display control is carried out. Display control information is read out from the segment RAM unit 24 at an address generated by the display-address counter 25.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: December 21, 1999
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd
    Inventors: Yoshikazu Yokota, Satoru Tsunekawa, Kimihiko Sugiyama
  • Patent number: 6004447
    Abstract: This invention relates to an electroforming device and a process used to electroform a metal layer on an inner surface of a female mandrel. The electrolytic solution flows only through an electrolytic solution passageway that defines the inner surface as the walls of the passageway. The mandrel may include more than one electrolytic solution passageway, or multiple mandrels may be used in a sequential order to mass produce the electroforms.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: December 21, 1999
    Assignee: Xerox Corporation
    Inventors: Patricia Bischoping, Robert P. Altavela, Lawrence Kotowicz, Peter J. Schmitt, William G. Herbert, Ronald E. Jansen, John H. Lennon, Henry G. Grey
  • Patent number: 6006304
    Abstract: A system includes a microcomputer. The microcomputer includes a clock signal circuit, a measuring circuit, a central processing unit, and a flash memory. A user sets a frequency of a clock signal provided by the clock signal circuit. The measuring unit counts a number of cycles of the clock signal in a period specified by reference data. The central processing unit receives the clock signal from the clock signal circuit and operates in accordance with the clock signal. The flash memory stores data which is electrically erased during an erase operation. The erase operation is executed during an erase time which includes a number of cycles of the clock signal calculated by the central processing unit. The central processing unit calculates a time for one cycle of the clock signal as a function of the period specified by the reference data and the number of cycles counted by the measuring unit.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: December 21, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hirofumi Mukai, Kiyoshi Matsubara
  • Patent number: 6006302
    Abstract: A processor bus linked with at least a processor, a memory bus linked with a main memory, and a system bus linked with at least an input/output device are connected to a three-way connection control system. The control system includes a bus-memory connection controller connected to address buses and control buses respectively of the processor, memory, and system buses to transfer address and control signals therebetween. The control system further includes a data path switch connected to data buses respectively of the processor, memory, and system buses to transfer data via the data buses therebetween depending on the data path control signal.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: December 21, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Okazawa, Koichi Kimura, Hitoshi Kawaguchi, Ichiharu Aburano, Kazushi Kobayashi, Tetsuya Mochida
  • Patent number: 6005682
    Abstract: The system achieves high-resolution imaging with low-resolution two-dimensional imagers whose sensors are only a fraction of a selected pixel area. Sensors are stepped across an image with an optical or mechanical stepper to acquire an image at each sensor position. Thereby, resolution is defined by a step size which is comparable to the sensor size, rather than by pixel resolution. The system thus uses multiple image, obtained from individual sensors, which have a sensed area substantially less than the area of the pixels of the sensor array. Such rescanning is accomplished by movable mirrors or lenses that are disposed between an illuminated specimen and a sensor area.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 21, 1999
    Assignee: Xerox Corporation
    Inventors: Xiaodong Wu, G. A. Neville Connell, Robert A. Street, Vittorio Castelli, Harold M. Anderson, Richard Weisfield
  • Patent number: 6001225
    Abstract: Non self-passivating cathodic protection anode materials such as graphite and high silicon iron are treated to improve corrosion resistance. Anodically stable oxide coatings such as cobalt oxide (cobalt spinnel) or precious metal oxides are received on the underlying anode substrate. The rate of consumption of the anode material during the operation of the cathodic protection system is dramatically reduced.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: December 14, 1999
    Inventor: James B. Bushman
  • Patent number: D417789
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: December 21, 1999
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John S. Murphy, Richard C. Farone, Laurie M. Shumaker, Robert A. Matousek, Craig Saunders, Jeffrey M. Kalman, Michael F. Wright, David M. Brickner
  • Patent number: D418237
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: December 28, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D418262
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: December 28, 1999
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D418265
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: December 28, 1999
    Assignee: Royal Appliance Mfg Co.
    Inventors: Richard C. Farone, Craig M. Saunders, Jeffrey M. Kalman, Paul D. Stephens, Robert A. Salo, Charles J. Thur, Michael F. Wright
  • Patent number: D418641
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: January 4, 2000
    Assignee: John Manufacturing Limited
    Inventor: John Se-Kit Yuen
  • Patent number: D418953
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: January 11, 2000
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Richard C. Farone, Craig M. Saunders, Jeffrey M. Kalman, Paul D. Stephens, Robert A. Salo, Charles J. Thur, Michael F. Wright