Patents Represented by Attorney Eugene Lieberstein
  • Patent number: 6395413
    Abstract: A perpendicular magnetic recording medium having an excellent thermal stability of the recorded signal and S/N and a low medium noise, and capable of easily forming a perpendicular magnetic recording layer is provided. The perpendicular magnetic recording medium has, at least, a perpendicular magnetic recording layer having a hexagonal closest packing (hcp) structure of which c-axis is perpendicular to a surface of the perpendicular magnetic recording layer, on a non-magnetic base, wherein the perpendicular magnetic recording layer has a saturation magnetization Ms of not more than 400 emu/cc, and a lattice constant c of the hexagonal closest packing structure is not more than 4.07 Å.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 28, 2002
    Assignee: Victor Company of Japan, Ltd.
    Inventor: Toshio Ando
  • Patent number: 6396780
    Abstract: The present invention provides an information storage apparatus generating a tracking error signal in which apparatus and method the differential push-pull method is applied to a three spot method using a main beam and two sub-beams, the main beam for writing data on a recording medium and reading data from the recording medium, the information storage apparatus including the following parts. A beam moving part moves the main beam from a blank track to a recorded track. A center value calculating part calculates a center value of the tracking error signal when said main beam is moved from the blank track to the recorded track so that a reference value of the tracking error signal is corrected in accordance with the center value when said main beam writes data on the recording medium.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: May 28, 2002
    Assignee: TEAC Corporation
    Inventors: Tsuyoshi Nakabori, Tadao Yamanouchi, Changhao Gui
  • Patent number: 6395720
    Abstract: According to the invention, compositions are made available which have a strong cytotoxic effect which is largely selective on tumor tissue. The invention is based on the fact that certain benzoic acid derivatives have a strong synergistic effect as a mixture and destroy cancer cells selectively in a pH range of 7 or below, such as from 6.5 to 7.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 28, 2002
    Inventor: Werner Kreutz
  • Patent number: 6392847
    Abstract: A disk apparatus has a head carriage and a head carriage drive mechanism. The head carriage drive mechanism has voice coil motors located on each side of the head carriage. The voice coil motors each have a drive coil, the two drive coils having different numbers of turns and being connected in parallel to a power source. The two voice coil motors generate identical propulsive forces despite having a different number of turns in the respective drive coils, making it possible to move the head carriage with precision. A head carriage position detecting mechanism is included in a space formed beneath the drive coil having the smaller number of turns, for added precision in positioning the head carriage.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: May 21, 2002
    Assignee: TEAC Corporation
    Inventors: Hidetoshi Kabasawa, Nobuyuki Oida
  • Patent number: 6392467
    Abstract: A stable high-speed integrated circuit driven by a wide range of low voltages and consuming low power. A MOSFET is used wherein signals are applied to its gate and body for forming a circuit block which comprises a transistor network and at least one buffer circuit. Each buffer circuit has at least two configurations. A plurality of circuit blocks are formed on the same IC chip. Any of the configurations of the buffer circuit may be selected according to the magnitude of the capacitance of the load driven by the circuit block.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: May 21, 2002
    Assignee: Toshiba Corporation
    Inventors: Yukihito Oowaki, Tsuneaki Fuse
  • Patent number: 6382929
    Abstract: A valve combination for vibration pumps performs multiple functions of self-priming, compensation of negative pressure and protection against over pressure. A body (12) contains a non-return valve (18). A valve (26) releases air and compensates for negative pressure. A safety valve (48) vents accidental over pressure originating, for example, from a boiler source. The valve (26) in order to achieve negative pressure compensation, comprises a plug provided with grooves or incisions (40a-c) for favoring the external flow of air subject to negative pressure.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: May 7, 2002
    Assignee: ULKA SRL
    Inventor: Calogero Di Benedetto
  • Patent number: 6382477
    Abstract: This invention intends to provide a molten metal pouring amount control apparatus in which a sliding resistance of a slide frame is small and a pressing force around a nozzle hole is stabilized so that there is no fear that any trouble such as a molten metal leakage occurs and further, a structure thereof is simple and maintenance cost is low. More specifically, this invention provides a molten metal pouring amount control apparatus for adjusting an opening of a nozzle hole in a fixed plate and an opening of a nozzle hole in a sliding plate by sliding a slide frame by means of a driving means, the control apparatus further comprising guide units each including a plurality of steel balls arranged in line between the slide frame and springs, the guide units being provided on both sides of the sliding plate.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: May 7, 2002
    Assignees: Tokyo Yogyo Kabushiki Kaisha, NKK Corporation, Nippon Rotary Nozzle Co., Ltd., Kokan Kikai Kogyo Kabushiki Kaisha
    Inventors: Hironori Yamamoto, Masahiro Tsuru
  • Patent number: 6381403
    Abstract: An optical audio disc comprises the first pack (A Pack), the second pack (A-CONT Pack), the third pack (V Pack), and the fourth pack (CONT Pack) in which the A-CONT Pack is placed at the head of a data array and a plurality of the A and V Packs follow the A-CONT Pack in each audio contents block unit (ACBU). Information contained in an A-CONT Pack manages audio data contained in the A Pack. The A Pack contains audio data and the V Pack contains other data than the audio data such as closed caption (CC) data as well as video data. A reproduction apparatus for an optical audio disc (DVD-Audio disc) comprises the CONT Pack detector section 1103, the A-CONT Pack detector section 1109, the parameter sections 1108 and 1114, the V Pack buffer section 1104, and the A Pack buffer section 1110. The CONT Pack detector section 1103 and the A-CONT Pack detector section 1109 detect reproduced CONT and A-CONT Packs contained in the DVD-Audio disc 1101 respectively.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: April 30, 2002
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Yoshiaki Tanaka, Shoji Ueno, Norihiko Fuchigami
  • Patent number: 6380541
    Abstract: This device comprises a chamber (4) with a pinhole, the walls of the chamber acting as shielding (6) that absorbs radiation. The chamber contains means of forming images of the sources, due to radiation, and the area in which the sources are located, due to visible light from this area. A part (36) of the shielding in which the pinhole (32) is located, is free to move and is fixed to an optical system (34) capable of providing sharp images in visible light over the required field depth by replacing the pinhole for the formation of the image of the area, and vice versa for formation of the image of the sources. Application to localizing gamma radiation sources.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: April 30, 2002
    Assignees: Commissariat a l'Energie Atomique, Compagnie Generale des Matieres Nucleaires
    Inventors: Frédéric Laine, Olivier Gal, Séverine Gaucher
  • Patent number: 6379832
    Abstract: The present invention discloses a base tube for a fuel cell produced by forming a film of a fuel electrode and a film of an air electrode on a surface of the base tube, the base tube comprising a mixture of a raw material for the base tube, and coarse particles, whereby the mixture shrinks nonuniformly when sintered to increase the porosity of the base tube. Thus, the gas permeability and the cell electrical efficiency can be increased.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: April 30, 2002
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hiroshi Tsukuda, Nagao Hisatome, Yoshiharu Watanabe, Akihiro Yamashita, Kenichiro Kosaka, Toru Houjyou
  • Patent number: 6375009
    Abstract: The present invention relates to a bag with a shock absorbing unit for protecting the bag's contents from external impacts. In the shock absorbing unit 1, upper and lower panels 2, 3 and the side shock absorbing member 4 include a plurality of air cells 5, 6, each of which is inflated with air and sealed. The shock absorbing unit 1 is either sewed or attached to a bag 10 having a soft or hard side surface in a detachable manner so as to absorb various external impacts from all directions when carrying the bag 10 and to receive the contents safely and conveniently. In addition, it also allows the contents to be easily taken out.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: April 23, 2002
    Inventor: Chung Kyun Lee
  • Patent number: 6377862
    Abstract: A digital audio signal obtained from an analog audio signal indicating a music, pieces of audio reproduction control information respectively indicating the adjustment of a sound quality of the music are added to the digital audio signal, and the digital audio signal is recorded with the pieces of audio reproduction control information as packed data. When a user selects a piece of particular audio reproduction control information from the pieces of audio reproduction control information after the packed data is read out, levels of pieces of audio data of the digital audio signal are adjusted according to the particular audio reproduction control information, so that the user can entertain the music at a desired sound quality.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: April 23, 2002
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Hidetoshi Naruki, Shoji Ueno
  • Patent number: 6372997
    Abstract: A multi-layer solid structure and method for forming a thermal interface between a microelectronic component package and a heat sink so that the structure has a total thermal resistance of no greater than about 0.03° C.-in2/W at a pressure of less than 100 psi. The structure comprises at least two metallic layers each of high thermal conductivity with one of the two layers having phase change properties for establishing low thermal resistance at the interface junction between the microelectronic component package and the heat sink.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 16, 2002
    Assignee: Thermagon, Inc.
    Inventors: Richard F. Hill, Forest Hampton, III
  • Patent number: 6373359
    Abstract: The container section 18 comprises the contacting section (first contacting section) 18e1 of contacting with the top surface of the magnet 19, the stopper section (second contacting section) 18d1 of contacting with the tip of the top end of the magnet 19 and the first tongue 18c having flexibility, which contacts with the edge composed of the top end and the bottom surface of the magnet 19 and presses the magnet 19 to both the stopper section 18d1 and the contacting section 18e1. The projection 18f provided on the tip of the tongue 18c engages with the notch 19a provided on the magnet 19, so that the magnet 19 is allocated in the lateral direction.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 16, 2002
    Assignee: Victor Company of Japan, Ltd.
    Inventor: Yusuke Chonan
  • Patent number: 6363043
    Abstract: A recording medium includes first information selected from a plurality of information patterns and second information selected from another plurality of information patterns for the true-false judgement. A true-false judging device performs a statistic analysis when any coincidence is found between the readout combination of the first and second information and registered combination patterns, to identify an inspected recording medium as a forged product based on the result of the statistic analysis.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: March 26, 2002
    Assignee: Victor Company of Japan
    Inventor: Tetsuya Kondo
  • Patent number: 6357820
    Abstract: A work vehicle is provided that permits easy routine daily inspection services of a rear mounted engine in the vehicle. The vehicle has a cab covering a rear engine compartment. The cab is pivotally mounted on the frame of the vehicle. An engine hood is in turn pivotally mounted on the cab and covers the engine in the engine compartment. Accordingly, the hood can be pivoted or rotated to expose the engine for routine daily maintenance while the cab and the engine hood can be pivoted or rotated to expose the entire engine compartment for periodic heavy duty maintenance.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: March 19, 2002
    Assignee: Komatsu Limited
    Inventors: Isao Nagatsuka, Takeshi Endou, Junji Mimuro, Hirofumi Tanaka
  • Patent number: 6357334
    Abstract: An improved control system for die casting or similar machines wherein a closed loop velocity feedback circuit is supplemented with an integration circuit and two filtering circuits to compensate for the frequency response of the pilot valve in the die casting machine. The integration circuit serves to more accurately cause the velocity of an element being controlled to match the desired/commanded velocity, and also caused the velocity to more rapidly match the desired/commanded velocity.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: March 19, 2002
    Assignee: Tymac Controls Corporation
    Inventor: John R. Mickowski
  • Patent number: 6356415
    Abstract: A head carriage lock mechanism for a magnetic disk drive has a lock member, a lifter, a link member and a solenoid. The lock member is shaped in the form of a quadrilateral frame, with arms extending perpendicularly from a front panel and a rear panel so as to connect the two panels. The right arm of the lock member, which approaches the head carriage, has a rack that engages an engaging portion of the head carriage so as to lock the head carriage in place so as to prevent damage to the head carriage during transport. The solenoid that drives the lock mechanism is positioned inside the space enclosed by the frame of the lock member, making more efficient use of the space inside the disk drive and making it possible to make the disk drive more compact.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: March 12, 2002
    Assignee: TEAC Corporation
    Inventor: Hidetoshi Kabasawa
  • Patent number: 6350851
    Abstract: A method of producing a polyester from high-purity bis-&bgr;-hydroxyethyl terephthalate as a raw material containing cations and anions in trace amounts. Polyester production raw materials including bis-&bgr;-hydroxyethyl terephthalate containing cations and anions in a total weight of not more than 50 ppm, ethylene glycol and antimony trioxide and/or germanium dioxide as a polymerization catalyst are heated without substantially distilling off ethylene glycol and then heated under reduced pressure to be polycondensed while ethylene glycol is distilled off.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: February 26, 2002
    Assignee: AIES Co., Ltd.
    Inventors: Shuji Inada, Kikuchi Sato
  • Patent number: 6348179
    Abstract: The present invention involves a process and system for producing spherical BNxOy particles that are converted to crystalline BN. The process involves adding a boron compound to an aqueous solution, creating an aerosol spray from the solution in the form of aerosol droplets using an aerosol generator. The aerosol droplets are fed with an inert carrier gas into a heated furnace at a preset flow rate while simultaneously injecting a gaseous nitriding agent into the heated furnace in a direct proportion to the flow rate of the carrier gas containing the aerosol droplets whereby a precursor of spherically shaped BNxOy particles are formed which are further heat treated into particles of spherically shaped BN having a turbostratic or hexagonal structure.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: February 19, 2002
    Assignee: University of New Mexico
    Inventors: Robert T. Paine, William J. Kroenke, Eugene A. Pruss