Patents Represented by Attorney, Agent or Law Firm Armstrong, Westerman, Hattori, McLeland & Naughton, LLP
  • Patent number: 6335431
    Abstract: A method of separation of a racemic isomer and a meso isomer from a mixture of a racemic isomer and a meso isomer of a compound shown by the general formula [1] (wherein R1 and R2 are each independently a lower alkyl group or a cyano group, which are different from each other, R3 and R4 are each independently a lower alkyl group, and R5 is a hydrogen atom or a lower alkoxy group), which comprises treating the mixture with a water soluble organic solvent.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: January 1, 2002
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventor: Toshiyasu Ito
  • Patent number: 6334593
    Abstract: A bag holder for suspending a bag thereat with an opening portion of the bag directed upward, comprising a pair of arm members respectively provided with holding members for engaging and holding an opening edge portion of the bag, a pair of crossing means that intersect with each other being extended downward from end portions of the arm members and making the pair of arm members freely open/close around a fulcrum portion, and a pair of grounding members being extended from lower ends of the pair of crossing members as to oppose the pair of arm members. Attaching/detaching of the bag can be easily performed since the bag might simply be hung against or detached from a pair of holding means. Further, since bags can be held in a suspend manner, the external appearance thereof can be made attractive and cleaning of the floor can be easily performed.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 1, 2002
    Assignee: Aramu Kabushiki Kaisha
    Inventor: Seiji Inoue
  • Patent number: 6335759
    Abstract: A pinhole camera in which a conical lens with an apical angle of 91.13° to 91.15° is used to correct the fisheye characteristics, and ⅓-inch fixed charged coupled device and a pinhole with a diameter of 0.8 mm are adopted to obtain clear image of a subject in an range from a point closely adjacent to the camera to a point far from the camera with strong contrast. The pinhole video camera comprising: a printed circuit board to which ⅓-inch fixed coupled charged device is attached; a holder fixed so as to cover a front surface of the coupled charged device of the printed circuit board; a lens holder having a pinhole with a diameter of 0.8 mm; a conical convex lens with an apical angle of 91.13° to 91.15°, the conical convex lens fixed on a rear face side of the pinhole of the lens holder.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: January 1, 2002
    Inventor: Nobuo Harada
  • Patent number: 6334828
    Abstract: A power transmitting silent chain apparatus comprises a silent chain and a sprocket. The silent chain is comprised of a plurality of link plates interconnected by connector pins. Each link plate has a pair of teeth. The sprocket has a plurality of involute teeth for meshing with the link plate teeth. The link plate teeth have inner and outer flanks profiled to satisfy the expression Hi=Ho+Hs, where Hi is a distance from a pitch line of the chain to a pitch line of the inner flanks, Ho is a distance from the chain pitch line to a pitch line of the outer flanks, and Hs is an amplitude of a polygonal motion of the chain.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: January 1, 2002
    Assignee: Tsubakimoto Chain, CO
    Inventor: Kenshi Suzuki
  • Patent number: 6335453
    Abstract: There is provided a process for preparing a pharmacologically acceptable salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid which comprises condensing an amino acid and N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine.N-carboxyanhydride under basic condition, carrying out decarboxylation under between neutral and acidic condition to obtain N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid, and forming a pharmacologically acceptable salt thereof, wherein the production of a by-product (3): is suppressed by carrying out in an aqueous liquid a series of operations till formation of the pharmacologically acceptable salt or till isolation of the pharmacologically acceptable salt. The present invention enables to prepare the pharmacologically acceptable salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid having high quality, in a commercial scale with high yield and economical efficiency.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: January 1, 2002
    Assignee: Kaneka Corporation
    Inventors: Yasuyoshi Ueda, Koichi Kinoshita, Tadashi Moroshima, Yoshifumi Yanagida, Yoshihide Fuse
  • Patent number: 6335382
    Abstract: An ultraviolet-curable adhesive having an excellent moisture resistance and suitable for bonding optical disks having an information recording layer (vapor deposition layer), particularly optical disks having a thick vapor deposition layer, which contains, as essential components, (A) N-vinylpyrrolidone, (B) a urethane (meth)acrylate oligomer derived from a caprolactone-based polyol, an alicyclic diisocyanate and (meth)acrylic acid, and (C) a photopolymerization initiator containing (C-1) a photopolymerization initiator composed of only a carbon atom, a hydrogen atom and an oxygen atom without containing a nitrogen atom, a sulfur atom and a phosphorus atom and (C-2) a photopolymerization initiator containing a nitrogen atom and/or a sulfur atom in a (C-1)/(C-2) ratio of 70/30 to 100/0 by weight.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: January 1, 2002
    Assignee: Nagase-Ciba Ltd.
    Inventor: Takafumi Iida
  • Patent number: 6336023
    Abstract: An electrophotographic printer includes a photosensitive drum, a developing unit, an image transfer unit, and pre-transfer discharges arranged between the developing unit and the image transfer unit. The pre-transfer discharging means is arranged to progressively reduce the absolute value of the electric potential of a given point in the surface of the photosensitive drum. The reduction of the electric potential is performed in a non-abrupt manner through two or more steps as the given point is moved from the developing unit to the image transfer unit.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 1, 2002
    Assignee: Fujitsu Limited
    Inventors: Toshimasa Toyama, Seiji Suketomo
  • Patent number: 6334805
    Abstract: Female clothing such as a brassiere which is represented by a foundation having a cup unit having a breast support feature and a shape retaining feature and which comprises a breast retaining member (10) provided along a lower peripheral edge (1) and a side peripheral edge (2) and provided with a curved breast shape correcting and hardening region formed by molding a knitting fabric of thermoplastic synthetic resin fibers, the retaining member (10) being formed with a sectionally semicircular, curved strip (13) projecting outwardly and extending in the curved breast shape correcting and hardening region of the retaining member (10) and in parallel with the lower peripheral edge (1) and the side peripheral edge (2) of the cup unit, or being formed, instead of the curved strip (13), with a tensioned slender plain weave rubber string (14) sewn to the inner surface of the region, the curved strip (13) having an elastic resin bar (16) inserted into a recessed groove thereof, thereby providing female clothing which
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 1, 2002
    Assignee: Riverstone Co., Ltd.
    Inventor: Koshi Sawamoto
  • Patent number: 6336069
    Abstract: A front and rear wheel load distribution control unit which provides excellent driving operability of a coupled vehicle and improves durability of a driving unit.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: January 1, 2002
    Assignee: Komatsu Ltd.
    Inventors: Nobuki Hasegawa, Hitoshi Nakanishi
  • Patent number: 6336060
    Abstract: An arithmetic processing method and system in a wide velocity range flight velocity vector measurement system using a square truncated pyramid-shape five-hole Pitot probe. Approximation equations that determine attack angle &agr; and sideslip angle &bgr; in the form of third-order equations concerning attack angle pressure coefficient C&agr; and sideslip angle pressure coefficient C&bgr;, which are known numbers, are expressed in the form of a polynomial equation concerning Mach number M, where the coefficients are obtained from a lookup table.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: January 1, 2002
    Assignee: National Aerospace Laboratory of Science and Technology Agency
    Inventors: Masashi Shigemi, Teruomi Nakaya, Shigemi Shindo, Minoru Takizawa, Takeshi Ohnuki
  • Patent number: 6334499
    Abstract: An output control apparatus for a hybrid vehicle is provided, capable of preventing stopping of the engine at the time of recovering from a deceleration fuel cut and improving the acceleration capability. In a hybrid vehicle comprising an engine, a motor for assisting the driving power of the engine, and a battery for supplying electric power for the motor, the output control apparatus comprises an engine speed sensor, an idle stop execution judgement flag F_FCEX, and a motor ECU for judging whether the output assistance by the motor is to be executed, and the motor ECU comprises a deceleration fuel cut returning time permission judgement device (S026) for permitting the output assistance by the motor, when it is judged to return from the deceleration fuel cut by the flag value of the idle stop execution judgement flag F_FCEX, and when it is detected that the engine speed at the time of returning from the deceleration fuel cut is lower than a predetermined engine speed #NEMGMOT.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: January 1, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Atsushi Matsubara, Asao Ukai, Shigetaka Kuroda, Kazutomo Sawamura, Hideyuki Oki, Kan Nakaune
  • Patent number: 6335996
    Abstract: A fixing structure for optical connectors consists of a circuit board, a receptacle having a conductive housing shieldingly connected to the circuit board, the housing having an integral fixing portion with a prepared hole formed therein, and a screw passed through the circuit board and screwed in the prepared hole to fix the housing to the circuit board. The fixing portion has a sealing wall closing the prepared hole at a distal end thereof and an enclosed shaving receiver formed in the prepared hole, between the sealing wall and the screw. A short circuit is prevented which is caused by shavings produced when the screw is screwed in the prepared hole.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: January 1, 2002
    Assignee: Yazaki Corporation
    Inventor: Toru Yamaguchi
  • Patent number: 6336007
    Abstract: An evaluation method and printer in which a maintenance man may easily identify a deteriorated component in addition to a component that is broken down or is remarkably hard to operate without the need for any additional complex detecting device. A printer has a control part which controls a mechanical part and judges quantitatively in which state among normal, deteriorated, and abnormal states each mechanical part component is located. This judgment will change in accordance with whether the printer is in a maintenance or a normal mode. Further, a deteriorated component can be determined by visually inspecting a copy after one or a combination of electric parameters have been set to printable upper and lower limits.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 1, 2002
    Assignee: Fujitsu Limited
    Inventors: Eiichi Sugisaki, Hideo Okawa, Yoshinori Wada
  • Patent number: 6334802
    Abstract: An electrode for a display device, including a laminate of an underlying layer, a conductive layer and a protective layer formed on a substrate in this order from the substrate side in such a manner that at least the conductive layer is completely covered by the protective layer, the underlying layer and the protective layer being composed of a metal which is hard to form an alloy or intermetallic compound with the metal constituting the conductive layer and has a low solid solubility to the conductive layer.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: January 1, 2002
    Assignee: Fujitsu Ltd.
    Inventors: Shin'ya Fukuta, Hiroyasu Kawano, Hideki Harada
  • Patent number: 6335552
    Abstract: The semiconductor device comprises a MOSFET including a pair of impurity diffused regions formed on both sides of a gate formed on a semiconductor substrate; an insulation film covering a top of the MOSFET and having a through-hole opened on one of the impurity diffused regions formed in; and a capacitor formed at least a part of an inside of the through-hole, the through-hole having a larger diameter inside than at a surface thereof or having a larger diameter at an intermediate part between the surface thereof and a bottom thereof than the surface and the bottom thereof.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: January 1, 2002
    Assignee: Fujitsu Limited
    Inventor: Junichi Mitani
  • Patent number: 6335072
    Abstract: A non-true-circular optical disk includes a disk substrate which internally touches a hypothetical true-circle corresponding to an outer periphery of a true-circular optical disk of a certain standard size. The disk substrate has a non-true-circular contour corresponding to a configuration shaped such that at least one cut-out portion is formed at an outer periphery of the hypothetical true-circle to thereby enhance a design. The disk substrate includes at least one inscribed outer peripheral edge internally touching the hypothetical true-circle.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: January 1, 2002
    Inventor: Tomoaki Ito
  • Patent number: 6334232
    Abstract: A toothbrush for removing plaque, tarter and calculus from teeth. The toothbrush includes an elongated grip handle having a plurality of toothbrush bodies mounted on an end. The toothbrush bodies are adapted to clean various surfaces of teeth simultaneously.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 1, 2002
    Inventor: Masanori Sato
  • Patent number: 6335139
    Abstract: The present invention provides a toner for electrostatic image development which reconciles anti-offset properties and fixation properties and is superior in resistance to abrasion and peel of the fixed image in uses where the development and fixation are conducted at a wide range of a fixing speed, particularly high speed which exceeds 20 or 30 m/min. The toner comprises a polyester resin, a colorant, and a releasing agent, wherein the flow beginning temperature Tfb of the toner as measured by a constant load extrusion type capillary rheometer is within a range of 70-105° C. and the flow ending temperature Tend is within a range of 120-144° C.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: January 1, 2002
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hideki Gambayashi, Masanobu Nakamura, Toshiro Kogawara, Shinji Amaya
  • Patent number: 6335787
    Abstract: A projection optical system includes a first objective portion and an optical axis turn portion, each having an optical axis perpendicular to a reticle; an optical axis deflecting portion having an optical axis perpendicularly intersecting the above optical axis; and a second objective portion having an optical axis parallel to the above optical axis. An image-forming light beam from the reticle is returned toward the reticle by the first objective portion and a concave mirror provided in the optical axis turn portion to form a one-to-one image of the reticle. The returned image-forming light beam is led to the second objective portion through the optical axis deflecting portion to form a demagnified image on a wafer. During exposure, nitrogen gas is supplied through a gas changeover device to an illumination system unit, a reticle stage system unit, and a wafer stage system unit. During maintenance, air having ozone removed therefrom is supplied to these units through the gas changeover device.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: January 1, 2002
    Assignee: Nikon Corporation
    Inventor: Kenji Nishi
  • Patent number: D452670
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 1, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Noriyuki Ishii, Shinri Chibuka, Daishirou Kobayashi, Yasuhiro Kaneko