Patents Represented by Attorney, Agent or Law Firm Armstrong, Westerman, Hattori, McLeland & Naughton, LLP
  • Patent number: 6343283
    Abstract: A data copyright management system is provided, in which a primary user edits a received data and supplies the edited data to a secondary user. The copyright management system comprises a database and a key control center, and uses a primary copyright label, a primary use permit key including a first crypt key, a secondary use permit key, a third crypt key, and a copyright management program. The primary user decrypts the copyrighted primary data, which is encrypted using the first crypt key and supplied, to plaintext using a primary use permit key obtained from the key control center and utilizes it. If the copyrighted primary data is stored in a primary user device, it is re-encrypted using the primary use permit key. The primary user receives a secondary use permit key for editing the copyrighted primary data from the key control center and edits the copyrighted primary data. The data being edited is encrypted using the secondary use permit key and is stored.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: January 29, 2002
    Assignees: Mitsubishi Corporation, Mitsubishi Electric Corporation
    Inventors: Makoto Saito, Shoichi Okazaki
  • Patent number: 6341651
    Abstract: In fabricating a heat sink from a blank comprising a base plate portion, and a fin-forming portion to be cut and provided on at least one side of the base plate portion by cutting the fin-forming portion to a raised form to make a plurality of fins, an object of the invention is to reduce the likelihood of producing burrs which are difficult to remove when the base plate portion is drilled while assuring the base plate portion of suitable machinability to render the heat sink less costly to manufacture. In a heat sink 1 having a plurality of fins 3 and fabricated from a blank 11 comprising a base plate portion 12, and a fin-forming portion 13 to be cut and provided on at least one side of the base plate portion 12 by cutting the fin-forming portion 13 to a raised form to make the fins 3, the above object can be fulfilled by using as the heat sink blank 11 an aluminum or aluminum alloy extrudate having a Vickers hardness of 40 to 65.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: January 29, 2002
    Assignee: Showa Denko K.K.
    Inventor: Keiichiro Ohta
  • Patent number: 6342740
    Abstract: An armature (11) for a miniature DC motor constitutes a rotor provided in an interior of a casing and armature windings (10) are wound around an iron core (9) in the form of a coil. In this armature (11), insulators (25, 26) made of paper including at least ordinary paper and having an electric insulation property adhere to at least portions, of both end faces of the iron core (9), on which the armature windings are wound. Thus, the iron core and the armature windings do not come into direct contact with each other.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: January 29, 2002
    Assignee: Mabuchi Motor Co., Ltd.
    Inventor: Takaichi Mabuchi
  • Patent number: 6342440
    Abstract: A method of manufacturing a semiconductor device capable of suppressing increase of a leakage current resulting from a high-temperature heat treatment is obtained. In this manufacturing method, an impurity region is formed by selectively ion-implanting an impurity into the main surface of a semiconductor substrate. The impurity region is activated by performing a high-temperature heat treatment. The semiconductor device is recovered from crystal defects resulting from the high-temperature heat treatment by performing a low-temperature heat treatment after performing the high-temperature heat treatment. According to this manufacturing method, the semiconductor device is recovered from the crystal defects resulting from the ion implantation by the high-temperature heat treatment, and recovered from the crystal defects resulting from the high-temperature heat treatment by the low-temperature heat treatment.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: January 29, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuhiro Sasada, Yasunori Inoue, Shinichi Tanimoto, Atsuhiro Nishida, Yoshikazu Ibara
  • Patent number: 6343242
    Abstract: The invention relates to a protective device for a clean robot that includes a base 7 in which actuators 4 and 5 for driving a robot arm 3 are accommodated; a translational guide 8 for causing the base 7 to travel in a rectilinear direction; and a robot controller 10 that drives and controls the drive motor 4A and 5A of the robot arm 3 and an actuator 9 of the translational guide 8; wherein the protective device further includes acceleration sensors 11, which are disposed in the base 7 and are provided in respective axes so that they can detect an impact, when the clean robot 1 interferes with a surrounding substance, as vibration acceleration in the three-dimensional directions; an interference detecting device 13 that outputs a pulse when the detection signals of the acceleration sensors 11 of the respective axes exceed the threshold values that will become standards; and the first AND circuit that converts signals outputted from the interference detection means of the respective axes to interference signal
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: January 29, 2002
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Akihiro Nomura, Shinji Yamashita, Masafumi Tamai, Satoshi Murakami, Shinobu Satou, Takeo Suzuki
  • Patent number: 6341676
    Abstract: An eletromagnetic brake provided with a braking force receiving bracket for receiving tangent force of a pair of brake shoes reciprocating in approaching and parting directions mutually. The braking force receiving bracket is fixed to a fixation member, slide faces, which receive side faces of the pair of brake shoes as the brake shoes can slide, are provided on inner sides of the above bracket, and the above pair of brake shoes are surrounded by the bracket.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 29, 2002
    Assignee: Sanyo Kogyo Co., Ltd.
    Inventor: Kazuo Hikari
  • Patent number: 6342621
    Abstract: Penta-coordinated ruthenium catalysts for the metathesis reactions of olefins, in particular ring opening metathesis polymerization (ROMP) of cyclo-olefin monomers, which are cationic complexes represented by formula I, II or III: wherein each of X1 and X2, which may be the same or different, is an optionally substituted C3-C20 hydrocarbon group having an allyl moiety as an end group bonded to the ruthenium atom, or X1 and X2 together form a group, optionally substituted, which results from dimerization of an alkene and has at each end an allyl group bonded to the ruthenium atom; L1 and L2 are mono-dentate neutral electron donor ligands, preferably highly sterically encumbered neutral electron donor ligands such as alkyl phosphines or amines; L{circumflex over ( )}L is a bidentate neutral electron donor ligand, preferably phosphine, amino, imino, arsine or arphos; L3 is a solvent molecule or a neutral mono-dentate electron donor ligand; L{circumflex over ( )}L{circumflex over ( )}L is a trid
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: January 29, 2002
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Shakti L. Mukerjee, Vernon L. Kyllingstad
  • Patent number: 6341836
    Abstract: A water-repellent coating having a higher wiping resistance against a wiper and capable of being formed by a more simplified process than was previously possible. The method of forming the water-repellent coating comprises a flat hard body and a plating-processed fluoric polymer which are formed on a nozzle plate having a nozzle as a substrate around the nozzle.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 29, 2002
    Assignee: Fujitsu Limited
    Inventors: Shuji Koike, Masayuki Sasaki, Tomoyuki Akahoshi
  • Patent number: 6341898
    Abstract: A receptacle that is useful from the viewpoint of superior workability, low loss of light and low cost is provided as well as a process for producing the recepacle. An optical connector that is inexpensive and contributes to better optical communication is also provided. The receptacle has an optical element module containing lead frame having an optical element and a connector housing having a room for accommodating and placing the lead frame, into which an optical plug having ferrule-mounted optical fibers at the end thereof is plugged. The connector housing contains a socket cavity for receiving the optical plug and a cylinder being in communication with the socket cavity and the room. The optical element module contains a clad formed in the cylinder, a core forming an optical waveguide in combination with the clad, and a molded portion united with the core. The core and the molded portion are made of a light-transmitting transparent resin that is filled into the inside of the clad and the room.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: January 29, 2002
    Assignee: Yazaki Corporation
    Inventor: Junichi Matsushita
  • Patent number: 6342318
    Abstract: A hydrogen absorbing alloy electrode is provided which has an excellent oxygen gas absorbing capacity and further improved in charge-discharge cycle characteristics and high-rate discharge characteristics. The electrode contains a powder prepared by mixing a hydrogen absorbing alloy powder with a powder of at least one complex oxide selected from the group consisting of a ZrO2—Y2O3 solid solution, ZrO2—CaO solid solution, CeO2—Gd2O3 solid solution, CeO2—La2O3 solid solution, ThO2—Y2O3 solid solution, Bi2O3—Y2O3 solid solution, Bi2O3—Gd2O3 solid solution, Bi2O3—Nb2O3 solid solution and Bi2O3—WO3 solid solution. Preferably the electrode contains 0.1 to 10 wt. % of the complex oxide powder based on the combined amount of the two powders.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 29, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yohei Hirota, Nobuyuki Higashiyama, Teruhiko Imoto, Kikuko Kato, Mamoru Kimoto, Shin Fujitani, Koji Nishio
  • Patent number: 6340848
    Abstract: An on-vehicle distribution box for distributing an electrical power supplied from a power source to a first voltage load operated on a first voltage and to a second voltage load operated on a second voltage differed from the first voltage. The distribution box includes a primary circuit of which an upstream point is connected to the power source and of which a downstream point is connected to the first load. The primary circuit has also a first fuse means. The distribution box also includes a branch circuit branched at an upstream point of the fuse means from the primary circuit and connected to the second load at a downstream side of the branch circuit. A DC/DC converter is provided in the branch circuit for converting the first voltage to the second voltage, and a second fuse means is provided in the branch circuit downstream from the DC/DC converter. The first voltage is higher than the second voltage.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: January 22, 2002
    Assignee: Yazaki Corporation
    Inventor: Yuji Maeda
  • Patent number: 6340617
    Abstract: A method of manufacturing a semiconductor device having shallow p-n junctions and silicide regions, capable of meeting both requirements of a high annealing temperature and a low annealing temperature. A lamination of two films made of materials having different etching characteristics is formed on the surface of a silicon substrate, covering an insulated gate electrode structure. The upper film is anisotropically etched to form side wall spacers. Impurity ions are implanted into a surface layer of the silicon substrate and sufficiently activated to a first level. The lower film is removed by using as a mask the side wall spacers, and a metal film capable of being silicided is deposited to perform a first silicidation reaction. The insulated gate electrode is exposed and impurity ions are implanted shallowly in the surface layer of the silicon substrate.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: January 22, 2002
    Assignee: Fujitsu Limited
    Inventor: Kenichi Goto
  • Patent number: 6341049
    Abstract: A cassette loading mechanism comprises a tray disposed inwardly of a side plate on a chassis and movable in a cassette loading direction for holding a cassette, and a loading member disposed externally of the side plate for driving the tray. The side plate is provided with engaging pieces corresponding to an upper end and a lower end of the loading member. The loading member is formed in the lower end thereof corresponding to the engaging piece with a cutout for permitting the loading member to move to inside the engaging piece when positioned for mounting on the side plate. The loading member is mounted on the side plate by fitting the upper end thereof to the other engaging piece of the side plate and causing the other end of the loading member to clear the engaging piece at the cutout and to move to inside of the engaging piece. The loading member is slidable from the mounted position to move within a range in which the loading member is in engagement with the side plate.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: January 22, 2002
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Hiromasa Yamagishi
  • Patent number: 6340982
    Abstract: An exposure device in which an image forming lens is disposed in such a posture that the center line of an image forming is out of axial alignment with the center of beam intensity distribution of the light emitting diode output (the center of beam intensity distribution) so as to reduce possible incidence of stray light when local part of the light output from the light emitting diode array reflects on said wires. As a result, the stray light does not strikes the circumference surface of the image supporting body and the vivid image can be formed.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 22, 2002
    Assignee: Fujitsu Limited
    Inventors: Yoshihiko Taira, Youji Houki, Hirofumi Nakayasu, Tsutomu Nagatomi
  • Patent number: 6340031
    Abstract: A first spring guide fitting the outer periphery of one end portion of a coil spring is provided at an end wall portion of a valve casing, and a second spring guide fitting the inner periphery of the other end portion of the coil spring is provided at a valve element so that the first and second spring guides do no interfere with each other. Further, a valve element of the check valve is provided with an elastic sealing member having a lip portion to be seated on a valve seat portion of the valve casing. Moreover, the valve element is formed with a bypass hole communicating upstream and downstream sections of the check valve.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: January 22, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideki Matsumoto, Hiroshi Kitamura, Masaaki Horiuchi
  • Patent number: 6340352
    Abstract: An ultrasound treatment system in accordance with the present invention includes: ultrasonic transducers for generating ultrasonic vibrations; a handpiece including the ultrasonic transducers and serving as an operation unit; a probe connected to the ultrasonic transducers and serving as a vibration conveyer for conveying ultrasonic transducers to a distal member constituting a stationary section of a treatment unit used to treat a living tissue; a sheath serving as a protective member for shielding the probe; a holding member opposed to the distal member at the distal end of the sheath and constituting a movable section of the treatment unit which clamps a living tissue in cooperation with the distal member; a manipulator to be handled for clamping or freeing a living tissue using the holding member and distal member; an operation member for driving the holding member responsively to a movement of the manipulator; and a turning mechanism for turning the treatment unit relative to the manipulator with the axi
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: January 22, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Mitsumasa Okada, Toshiya Sugai, Yoshitaka Honda, Manabu Ishikawa, Tomohisa Sakurai
  • Patent number: 6340797
    Abstract: A printed circuit board is provided with a plurality of insulator layers and a plurality of conductor layers, and an outermost conductor layer has a plurality of foot patterns in outer and inner rows for mounting a BGA component and signal patterns. The width of at least a part of the signal pattern extending from the foot pattern in the outer row is greater than the width of the signal pattern extending from the foot pattern in the inner row. The printed circuit board further includes a protection layer for covering the signal patterns on the outermost conductor layer, and the protection layer has openings each for permitting the foot pattern to be exposed. At least a portion of the signal pattern appearing in the opening is widened.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: January 22, 2002
    Assignee: Fujitsu Limited
    Inventors: Takashi Yoshida, Masahide Watanabe, Nobuo Taketomi
  • Patent number: 6340888
    Abstract: A magnetic field generator for MRI comprises a pair of plate yokes opposed to each other with space in between. A magnet is provided in each of the opposed surfaces of the pair of plate yokes. A column yoke is connected to the pair of plate yokes. An enhancing member made of magnetic material and having a curved slant face is provided in an inner surface of the connection between the column yoke and the plate yokes at a place farthest from the magnet. A first bolt of magnetic field adjusting bolts is screwed into the plate yoke, with a tip of the first bolt contacting the enhancing member. A second bolt of the magnetic field adjusting bolts is screwed into the plate yoke, with a tip of the second bolt contacting an upper end face of the column yoke. An engaging portion for engagement of the enhancing member with the yoke may be provided.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: January 22, 2002
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Masaaki Aoki, Shigeo Hashimoto
  • Patent number: 6340393
    Abstract: In synthesizing a diamond by a vapor-phase growth method, a sputtering method, or a high-pressure and high-temperature synthesis method, N, P or As as an n-type dopant, and H as a p-type dopant are simultaneously doped in a crystal to form a donor-acceptor pair in the crystal, to thereby synthesize a transparent n-type diamond having low resistance.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: January 22, 2002
    Assignee: Japan Science and Technology Corporation
    Inventor: Hiroshi Yoshida
  • Patent number: PP12373
    Abstract: A new and distinct cultivar of russet type Japanese pear tree that has strong tree vigor and a strong resistance to black spot disease. This pear tree bears large size fruit, the harvesting stage of the fruit being mid to late in season after the ‘Hosui’ cultivar. This pear tree bears large size fruit having excellent quality, such as being highly sweet and weakly acidic.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: January 29, 2002
    Assignee: National Institute of Fruit Tree Science, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Yutaka Machida, Kazuo Kotobuki, Yoshihiko Sato, Kazuyuki Abe, Akio Kurihara, Tatsushi Ogata, Toshihiro Saito, Osami Terai, Toyohide Nishibata, Teruo Kozono, Hiroyuki Fukuda, Takeshi Kihara, Katsuyuki Suzuki