Patents Represented by Attorney, Agent or Law Firm Armstrong, Westerman, Hattori, McLeland & Naughton, LLP
  • Patent number: 6343910
    Abstract: A turbo-molecular pump has a casing, a stator fixedly mounted in the casing, and a rotor supported in the casing for rotation relatively to the stator. A turbine blade pumping assembly and a thread groove pumping assembly for discharging gas molecules are disposed between the stator and the rotor. The rotor comprises at least two components constituting the turbine blade pumping assembly and the thread groove pumping assembly. The components are separable from each other at a predetermined position, and joined to each other to form the rotor.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: February 5, 2002
    Assignee: Ebera Corporation
    Inventors: Hiroyuki Kawasaki, Hiroshi Sobukawa
  • Patent number: 6344690
    Abstract: A semiconductor device comprises a semiconductor element having electrodes and metal bumps are attached to the electrodes. The metal bumps include copper cores and gold surface layers covering the cores. In addition, the metal bumps may include gold bump elements and solder bump elements connected together.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: February 5, 2002
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kitajima, Masakazu Takesue, Yoshitaka Muraoka
  • Patent number: 6343413
    Abstract: A chip inductor is made up of a coiled conducting wire and a magnetic member which is formed by sintering and in which the coiled conducting wire is embedded. Both end portions of the coiled conducting wire are exposed to both end surfaces of the magnetic member. External electrodes are formed with conducting thin films and are connected to respective end portions of the coiled conducting wire. An inorganic material is interposed in a clearance between winds of both end portions of the conducting wire and external surfaces of the magnetic member and a clearance between adjoining winds of the conducting wire.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: February 5, 2002
    Assignee: Taiyo Yuden Kabushiki Kaisha
    Inventors: Hiroyuki Masuda, Kinya Iri, Kenichiro Nogi, Nobuo Mamada
  • Patent number: 6344658
    Abstract: A Gunn diode which is formed by sequentially laminating a first semiconductor layer, an active layer and a second semiconductor layer onto a semiconductor substrate. The Gunn diode comprises first and second electrodes arranged on the second semiconductor layer for impressing voltage on the active layer, and a concave portion which is cut from around the first electrode in a direction of the second semiconductor layer and the active layer and which subdivides the second semiconductor layer and the active layer to which the first electrode is connected as a region which functions as a Gunn diode. Since etching for defining a region that is to function as a Gunn diode is performed by self-alignment dry etching utilizing electrode layers formed above this region as masks, variations in characteristics are restricted.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: February 5, 2002
    Assignee: New Japan Radio Co., Ltd.
    Inventors: Atsushi Nakagawa, Kenichi Watanabe
  • Patent number: 6345161
    Abstract: This invention relates to a non-contact developing method for applying a driving voltage, which is an AC voltage superimposed on a DC offset voltage, to a non-contact developing roller to develop toner, and which prevents the selective developing phenomenon from occurring. The velocity ratio between the flying velocity of toner with a large particle size and the flying velocity of toner with a small particle size changes according to the driving frequency f of the AC voltage (45) applied to the developing roller, so by setting the driving frequency f of the AC component within a range where selective developing of the toner does not occur, it is possible to effectively prevent the selective developing phenomenon from occurring.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: February 5, 2002
    Assignee: Fujitsu Limited
    Inventor: Tsuneo Mizuno
  • Patent number: 6343460
    Abstract: A packaging machine includes a bottom breaker which has first to third prefolding members (41) to (43). The third prefolding member (43), serving to prefold a fold forming portion (27) by bending this portion (27) outward along a base part thereof, is pivotally movable from a nonoperative position P0 to a second operative position P2 via a first operative position P1. The fold forming portion (27) is moved with a first bottom panel (21) by the operation of the second prefolding member (42) so as to be brought into contact with the third prefolding member (43) and thereby bent outward while the third prefolding member (43) is pivotally moved from the nonoperative position P0 toward the first operative position P1. The third prefolding member (43) is pivotally moved from the first operative position P1 toward the second operative position P2 after the operation of the second prefolding member (42) to thereby bend the fold forming portion (27) through an increased angle.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: February 5, 2002
    Assignee: Shikoku Kakoki Co., Ltd.
    Inventors: Yasuji Fujikawa, Kazuo Abe, Michio Ueda
  • Patent number: 6344692
    Abstract: A semiconductor device and its manufacture method wherein the semiconductor substrate has first and second insulating films, the first insulating film being an insulating film other than a silicon nitride film formed at least on a side wall of a conductive pattern including at least one layer of metal or metal silicide, and the second insulating film being a silicon nitride film formed to cover the first insulating film and the upper surface and side wall of the conductive pattern. The first insulating film may be formed to cover the upper surface and side wall of the conductive pattern. A semiconductor device and its manufacture method are provided which can realize high integrated DRAMs of 256 M or larger without degrading reliability and stability.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: February 5, 2002
    Assignee: Fujitsu Limited
    Inventors: Shinichiroh Ikemasu, Narumi Okawa
  • Patent number: 6344629
    Abstract: On a setting cart which is movable back and forth between a setting station and a vehicle body assembly station, there are provided floor panel setting members, side sill receiving members and side panel forcing members which force side panels toward a floor panel from a lateral outward. In the setting station, the floor panel and the side panels which are set in position on the setting cart are transferred to a jig which is disposed in a side portion of the vehicle body assembly station. The side panels are welded to the floor panel by welding robots which are disposed at a level below the jig. In the above-described arrangement, the side sill receiving members and the side panel forcing members are set on the setting cart so as to be retractable into shunted positions free from interference with the welding robots in welding operation. The welding work by the welding robots can thus be started without waiting for the returning of the setting cart to the setting station.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: February 5, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Chitoshi Kato, Masayuki Fukumori, Teiji Miwa, Kenji Kusumegi, Nagahisa Kitamura, Masashi Koike, Masaaki Tanaka
  • Patent number: 6343779
    Abstract: A water distribution piping for gas-dissolved cleaning water which distributes cleaning water, made by dissolving gas in pure water, in the presence of gas, the piping having a main pipe and branch pipes, including an in-line mixer immediately upstream of each point at which a branch pipe extends from the main pipe.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: February 5, 2002
    Assignee: Kurita Water Industries, Ltd.
    Inventor: Hiroshi Morita
  • Patent number: 6343627
    Abstract: An apparatus for supplying a semiconductor process gas charged in a large-capacity gas vessel to a plant where the gas is used, after reduction of the pressure of the gas. The gas cylinder 21 is composed essentially of a cylindrical portion 22 and hemispherical portions 23 and 24 formed at the ends of the cylindrical portion respectively. The gas cylinder 21 has a gas charge port 26 at one hemispherical portion and a gas discharge port 27 at the other hemispherical portion both of which opening in alignment with the axis 25 of the cylindrical portion 22. A charge valve 28 and a gas discharge unit 29 having at least a gas vessel valve 30 and a pressure reducing valve 32 are connected to the gas charge port and the gas discharge port respectively. The gas cylinder 21 is housed together with the charge valve 28 and the gas discharge unit 29 in a container 36.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: February 5, 2002
    Assignee: Nippon Sanso Corporation
    Inventors: Satoshi Hasaka, Kenji Shigeta, Takashi Kuroiwa, Tomoaki Hoshi, Hideki Seki, Toshiyuki Aida
  • Patent number: 6344724
    Abstract: A numerical control apparatus (1 or 20) comprising pecking operation controlling means (12) which make a feed drive system (14) retracted when a cutting load detected by cutting load detecting means (7) exceeds a reference value during a drilling process, the cutting load detecting means (7) comprise a bite load detecting section (8) to detect the cutting load at a biting stage wherein a tool bites a work piece, and a stationary load detecting section (10) to detect the cutting load after the biting stage. The numerical control apparatus (1 or 20) comprises pecking judgement means (11) to judge that the feed drive system (14) should be retracted when a fluctuation load exceeds a specified reference value wherein the fluctuation load is obtained by reducing the bite load from the detected stationary load. When it is judged that the feed drive system (14) should be retracted, the pecking operation controlling means (12) make the feed drive system (14) retracted.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: February 5, 2002
    Assignees: Mori Seki Co., Ltd., Yasda Precision Tools K.K., Osaka Kiko Co., Ltd., Yamazaki Mazak Corporation, Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshiaki Kakino, Makoto Fujishima, Hisashi Otsubo, Hideo Nakagawa, Yoshinori Yamaoka, Torao Takeshita
  • Patent number: 6344620
    Abstract: A multidirectional input device with a built-in push-down switch, capable of reducing the number of parts, eliminating soldering for connection with a mounting substrate, and reducing an assembly cost of devices using the multidirectional input device, wherein a key top (70) provided under an operating member (30) operating a set of upper and lower rotating members (40a) and (40b) is installed through the bottom plate part (11) of a case (10) and pushed down by the operating member (30), and a switch main body (110) operated by the key top (70) and provided on a substrate (100), on which the case (10) is installed, comprises a fixed contact formed on the substrate (100) and a dome-shaped moving contact covering the fixed contact and fixed onto the substrate.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: February 5, 2002
    Assignee: Hosiden Corporation
    Inventor: Masahiko Nakamura
  • Patent number: 6342928
    Abstract: A receiver includes two input terminals. A VHF broadcast signal over a 6-MHz band channel is inputted through one input terminal, while an FM broadcast signal over an approximate 100-kHz band channel is inputted through the other input terminal. The other input terminal is connected with a trap circuit for band width reduction. This trap circuit causes attenuation in signal components over channels close to a desired channel except that over the desired channel with a band of approximately 100 kHz. An analog switch inputs selectively the VHF broadcast signal and the FM broadcast signal attenuated in the signal components to a tuning circuit having a tuning band width of approximately 6 MHz. When an FM broadcast signal is selected, an FM broadcast signal only over a desired channel is outputted from the tuning circuit.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: January 29, 2002
    Assignees: Sanyo Electric Co., Ltd., Sanyo Tuners Industries Co., Ltd.
    Inventor: Koji Ohira
  • Patent number: 6342729
    Abstract: A tape carrier package formed by a TAB technique is provided. This tape carrier package includes a semiconductor chip and a TAB tape. The TAB tape has a rectangular device hole in which the semiconductor chip is situated, and inner leads extending inward in the device hole and bonded to the electrode bumps of the semiconductor chip. The inner leads (corner leads) at each corner of the device holes are reinforced by reinforcing leads.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 29, 2002
    Assignee: Fujitsu Limited
    Inventors: Masashi Takenaka, Shiro Yoda, Junichiro Hiyoshi, Hiroshi Takahashi, Hideo Sato
  • Patent number: 6341899
    Abstract: A hybrid connector consists of an electrical connector and an optical connector. The electrical connector includes a housing with a wall having a terminal mount section and an optical connector mount section and terminals bent L-shaped and inserted through the terminal mount section into the electrical housing. The optical connector includes an optical housing, and a light emitting element module and a light receiving element module, both accommodated in the optical housing. The optical housing, when assembled to the electrical housing, overlies the terminals with a spacing therebetween. A compact hybrid connector is obtained.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 29, 2002
    Assignee: Yazaki Corporation
    Inventors: Tsuguhito Shirakawa, Nobuyuki Akeda, Toshiharu Takahashi
  • Patent number: 6343087
    Abstract: An active layer is formed on the principal surface of a semiconductor substrate continuously at least from a laser output plane to a laser reflection plane, the active layer being gradually thinned toward the output plane in a region to a certain distance from the output plane toward the reflection plane. A ridge is formed on the active layer, extending from the output plane to the reflection plane and gradually increasing a width toward the output plane in a region to a first distance from the output plane, an upper surface of the ridge in a first region to a second distance from the output plane being set higher than an upper surface of the ridge in a second region other than the first region. A mesa structure is formed on the principal surface of the semiconductor substrate in areas on both sides of the ridge, the mesa structure having an upper surface defining a virtual flat plane at a position flush with or higher than a highest upper surface of the ridge.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: January 29, 2002
    Assignee: Fujitsu Limited
    Inventor: Tsuyoshi Yamamoto
  • Patent number: 6341985
    Abstract: In a connector unit 3 comprising a connector housing 1 which includes at least one terminal receiving chamber 8 into which a metal terminal 4 or 5 is inserted from a back side, the metal terminal being locked by a lance 10 for prevention of a backward withdrawal, and a front holder 2 coupled to the connector housing from a front side, the front holder 2 is provided with at least one terminal insertion hole 11 into which a mating terminal T is adapted to be inserted from a front side so as to be connected with the metal terminal, and at least one draw jig hole 13 through which a draw jig 7 is inserted from a front side to force the lance to be elastically deformed thereby to disengage a lock between the lance and the metal terminal. The draw jig hole 13 adjacent to the terminal insertion hole 11 is provided with a guide support section 15 which can guide the draw jig to move back and forth, and bear a reaction force from the lance acting on the draw jig when the lance is disengaged.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: January 29, 2002
    Assignee: Yazaki Corporation
    Inventor: Shinji Kodama
  • Patent number: 6341679
    Abstract: In a control unit for a torque converter with a lockup mechanism, the surface temperature of a clutch friction material in a lockup clutch is calculated with a surface temperature calculation unit B3, the surface temperature of the clutch friction material so calculated is compared with a predetermined first allowable temperature with a surface temperature comparison unit B4, and when the surface temperature of the clutch friction material is judged to have reached or exceeded the first allowable temperature, a friction material temperature reduction operating unit B5 is started to operate to reduce the surface temperature of the clutch friction material.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: January 29, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroya Abe, Yoshiharu Saito, Yoshinori Yamamoto, Toru Yamasita
  • Patent number: 6343252
    Abstract: The hybrid vehicle of the present invention has an internal combustion engine, a power storage unit for storing electric power, and a motor driven by the electric power stored in the power storage unit, the hybrid vehicle being driven by at least one of the outputs from the internal combustion engine and the motor.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: January 29, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Asami, Shigeru Ibaraki, Makoto Kishida
  • Patent number: 6343246
    Abstract: A control system for a hybrid vehicle with a combustion engine is provided for outputting driving force, an electric motor for generating a force for assisting the output from the engine, and a power storage unit for supplying a power to the motor and for storing energy regenerated by the motor when the vehicle decelerates.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: January 29, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Atsushi Matsubara, Hideyuki Oki, Shinichi Kitajima, Kazutomo Sawamura, Hideyuki Takahashi, Kan Nakaune, Hiroyuki Makino, Teruo Wakashiro