Patents Represented by Attorney, Agent or Law Firm Armstrong, Westerman, Hattori, McLeland & Naughton, LLP
  • Patent number: 6333564
    Abstract: A semiconductor device and a method of producing the same, the device including a semiconductor chip; balls which function as external connecting terminals; a substrate which electrically connects the semiconductor chip and the balls; a mold resin which seals at least a part of the semiconductor chip; and a connecting portion sealing resin which seals the connecting portion between the substrate and the semiconductor chip. The semiconductor device is mounted onto a printed circuit board via the balls. The thermal expansion coefficient of the mold resin is matched with the thermal expansion coefficient of the printed circuit board. A side surface holding portion for the holding the side surfaces of the semiconductor chip is formed in the mold resin to restrict thermal deformation of the semiconductor chip.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Yoshitsugu Katoh, Mitsutaka Sato, Hiroshi Inoue, Seiichi Orimo, Akira Okada, Yoshihiro Kubota, Mitsuo Abe, Toshio Hamano, Yoshitaka Aiba, Tetsuya Fujisawa, Masaaki Seki, Noriaki Shiba
  • Patent number: 6333554
    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: January 28, 1998
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Masayuki Kitajima, Masakazu Takesue, Yoshitaka Muraoka
  • Patent number: 6332314
    Abstract: In a catalyzer arrangement in an exhaust system of a multi-cylinder internal combustion engine, each of exhaust pipes connected with exhaust ports of the engine has a first exhaust pipe section extending away from a main body of the engine, a second exhaust pipe section contiguous to the first exhaust pipe section having a first curved portion for turning the second exhaust pipe section toward the main body of the engine, and a third exhaust pipe section contiguous to the second exhaust pipe section having a second curved portion for turning the third exhaust pipe portion away from the main body of the engine. A catalyzer is connected to a downstream side of the third exhaust pipe section and disposed within a space surrounded by the first, second and third exhaust pipe sections. The exhaust pipes are divided into one group positioned near one end of a row of cylinder of the engine and another group positioned near another end of the row of cylinder.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 25, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Junichi Nakade, Takeshi Kurotobi, Masahiro Sakanushi, Fumihiko Maeda
  • Patent number: 6334085
    Abstract: A data processing unit for a construction machine, the unit being capable of storing the load condition of an engine independently of variations in engine output torque without entailing increases in cost due to additional installation of sensors.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: December 25, 2001
    Assignee: Komatsu LTD
    Inventors: Koichi Kawamura, Seiya Haga
  • Patent number: 6332800
    Abstract: The connector lock mechanism has a receptacle connector and a plug connector which are engaged with each other. The receptacle connector has a first lock portion and a first inertia locked portion. The plug connector has a second lock portion and a second inertia locked portion. The first lock portion is engaged with second lock portion. The first inertia locked portion is engaged with the second inertia locked portion. The first lock portion has a first locking piece and a push piece that moves the first locking piece. The first inertia locked portion has a lock arm provided with a second locking piece. The second lock portion has a third locking piece that engages with the first locking piece after abutment thereof or when the push piece is depressed.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: December 25, 2001
    Assignee: Yazaki Corporation
    Inventor: Shinji Kodama
  • Patent number: 6333456
    Abstract: A solar cell device (2) is formed into a laminated structure by providing a transparent oxide electrode (12) on the surface of an insulating substrate (10) which is a transparent glass substrate, providing a surface treatment layer (14) by performing oxidative plasma treatment on the surface of the transparent oxide electrode (12), providing a silicon nitride film (16) on the surface treatment layer (14), and laminating a p-type semiconductor layer (18), a buffer layer (20), an intrinsic semiconductor layer (22), an n-type semiconductor layer (24), and a metal electrode (26) on the silicon nitride film (16) in that order. Thereby, the surface of the transparent oxide electrode (12) is chemically stabilized by the surface treatment layer (14), resulting in improved open circuit voltage.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: December 25, 2001
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Shinzo Yanagimachi
  • Patent number: 6333368
    Abstract: A curable composition useful in water-based paints comprises a water-based product obtained by dispersing or dissolving in water a vinyl polymer (II) containing tertiary amino and/or acidic groups which have been neutralized by an acidic or basic compound, an epoxy and hydrolysable silyl groups-containing compound (B), and a hydrolysable silyl and/or silanol groups-containing compound (F).
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: December 25, 2001
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Nobuo Harui, Masataka Ooka
  • Patent number: 6332983
    Abstract: A chip treatment device 100 includes a box-shaped housing 110, and an upper surface panel 112 of the housing is connected to a sloped portion 114. The interiors of the housing 110 is divided into upper and lower areas by a partition panel 130, and to the areas are provided a first cutting fluid bath 150 and a second cutting fluid bath 160. Chains 240 stretched between driving sprockets 210 and chain guide units 230 are equipped with scraper units 250 moving in the direction of the arrow. The chips coming in from an entrance opening 180 is separated from cutting fluid while being conveyed on the separation panel 130. First and second filter units 170, 300 filter said cutting fluid.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: December 25, 2001
    Assignee: Bunri Industries, Ltd.
    Inventors: Minoru Tashiro, Makoto Tashiro
  • Patent number: 6333188
    Abstract: Although the inventors previously found that the novel species designated Lactobacillus clearans was highly effective for health purposes, they noted in particular that this species lacked sufficient intestinal purification action. Efforts to produce a species of higher potency and the like to remedy this drawback led to the unavoidable conclusion that the use of a bacterium by itself produced limited results. The concurrent use of another active substance was thus considered in seeking a lactic acid bacteria preparation capable of invigorating healthy individuals, and of renewing a sense of well being and restored health in semi-sick individuals or semi-healthy individuals. The invention relates to a lactic acid bacteria preparation, comprising viable cells of Lactobacillus clearans, and either or both of viable and killed cells of Enterococcus faecalis capable of reducing one or more of at least triglycerides and cholesterol.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: December 25, 2001
    Assignee: BHPH Company Limited
    Inventors: Tadayo Hata, Toshiyuki Maruoka
  • Patent number: 6332509
    Abstract: A noise reducer for construction machinery, which efficiently reduces noise at low cost with durability, is provided. For this purpose, lamination plates (8) which are the plates being laminated are bonded, discretely at a predetermined interval (a1), to a part of or the entire of a noise generating element. Lamination plates (8A, 8E) may be bonded discretely at a plurality of kinds of bonding intervals (a1, a2). The lamination plates (8) with the different number of laminations may be bonded according to a noise generating element.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: December 25, 2001
    Assignee: Komatsu Ltd.
    Inventors: Kenji Nishikawa, Haruhiro Tsubota, Masao Tsujino
  • Patent number: 6333638
    Abstract: A semiconductor test apparatus tests a semiconductor device having plate connection terminals. The apparatus includes a test substrate having deformable connection parts connected with the plate connection terminals, and an upholding substrate which has upholding parts formed to project at a position that faces the connection part and which urges, in cooperation with the test substrate, the connection parts toward the plate connection terminals of the semiconductor device so as to electrically connect the connection parts to the plate connection terminals.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Norio Fukasawa, Yukinori Sumi
  • Patent number: 6332752
    Abstract: A turbo-molecular pump of high safety and reliability has been developed so that if an abnormal condition should develop on the rotor structure, it will not lead to damage to the stator or pump casing to cause loss of vacuum in a vacuum processing system. The turbo-molecular pump comprises a pump casing housing a stator and a rotor therein, a vane pumping section and/or a groove pumping section comprised by the stator and the rotor, and a constriction releasing structure for releasing constriction of at least a part of the stator when an abnormal torque is applied to the stator by the rotor.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: December 25, 2001
    Assignee: Ebara Corporation
    Inventors: Tetsuma Ikegami, Matsutaro Miyamoto, Hiroyuki Kawasaki
  • Patent number: 6333756
    Abstract: The present invention aims at providing an optical unit, its manufacturing method, and electrophotographic device that can easily and inexpensively achieve a reliable latent image formation on a photosensitive drum, and can form a high-quality image. To realize the above aims, a lens barrel and a collimating lens are bonded only at a single spot, and the bonding orientation is aligned approximately with a main scanning direction. Thereby displacement of the collimating lens caused by a thermal expansion of the adhesive is restricted to the main scanning direction as adjustable by other components.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Yukihiro Matsushita, Takao Sugano, Fumio Kaneko
  • Patent number: 6333490
    Abstract: A toner image fixing apparatus has a fixing roller, a pressing roller, and a heating roller. The pressing roller is normally urged toward the fixing roller for pressing a sheet with an unfixed toner image carried on a surface thereof against the fixing roller to fix the unfixed toner image to the sheet when the sheet passes in one direction through a rolling contact region between the fixing roller and the pressing roller. The heating roller is disposed on one side of the fixing roller opposite to the pressing roller. A first heat source is disposed in the heating roller for heating the heating roller, and a second heat source is disposed in the pressing roller for heating the pressing roller. An endless heat transfer belt is trained around the heating roller and the fixing roller for transferring heat from the first heat source to heat the unfixed toner image on the sheet when the sheet passes through the rolling contact region.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: December 25, 2001
    Assignee: Nitto Kogyo Co., Ltd.
    Inventors: Yuichiro Higashi, Yasuhide Hamada
  • Patent number: 6331602
    Abstract: This invention relates to a monomer shown by the general formula [1] (wherein X′ is a cyclic hydrocarbon residue containing polymerizable double bond(s), which may have a substituent, Z is a spacer or a direct bond and R is a substituted alkyl or alkenyl group having one or two protected hydroxyl groups as substituent) and a polymer containing a segment derived from the above monomer. The said polymer is useful for a resist composition, etc. utilized in the production of semiconductor elements, etc. and the said monomer is useful as a starting material for the polymer, and a resist composition using the said polymer can remarkably advantageously be used as a resist material for ArF excimer laser beams which has been considered to be a valuable technology for exposure belonging to the coming generation.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: December 18, 2001
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventor: Motoshige Sumino
  • Patent number: 6331591
    Abstract: A cycloolefin copolymer resin composition having well-balanced transparency and impact resistance which comprises (A) a cycloolefin copolymer and (B) 1 to 100 parts by weight, per 100 parts by weight of said cycloolefin copolymer, of at least one rubber-like polymer selected from the group consisting of (B1) an aromatic vinyl-isobutylene copolymer and (B2) an aromatic vinyl-conjugated diene copolymer, wherein the difference in refractive index (nD) at 20° C. between the components (A) and (B) is at most 0.015 and the particle size of the component (B) dispersed in the component (A) is from 0.4 to 3 &mgr;m. The composition may further contain a core-shell polymer (C), whereby the impact resistance can be further improved. The composition is prepared by kneading the above components at an elevated temperature optionally in the presence of an organic peroxide.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: December 18, 2001
    Assignee: Kaneka Corporation
    Inventors: Masahiro Miyamoto, Katsuhiko Kimura, Taizo Aoyama
  • Patent number: 6331239
    Abstract: A method of electroplating non-conductive plastic moldings, the method comprising the steps of: applying a catalyst useful for electroless plating to non-conductive plastic moldings using a colloidal solution containing a precious metal compound and a stannous compound; forming an electrically conductive coating on the surface of the moldings using an electroless copper plating solution containing a copper compound, a saccharide having a reducing property, a complexing agent and an alkali metal hydroxide; and electroplating the coated moldings. According to the method, an electroplated coating excellent in appearance and properties can be formed on non-conductive plastic moldings by a simple procedure.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: December 18, 2001
    Assignee: Okuno Chemical Industries Co., Ltd.
    Inventors: Hideki Shirota, Jun Okada
  • Patent number: 6331581
    Abstract: This invention provides a method for color matching of a thermosetting powder coating composition, the method comprising the steps of: dryblending two or more kinds of starting colored thermosetting powder coating compositions of different colors having an average particle size of 10 &mgr;m or less to achieve color matching, and granulating the dryblend to a particle size in the range which is suitable for coating, by adding at least one binder selected from the group consisting of an aqueous solution of polyethylene glycol and an aqueous dispersion of paraffin wax; and a production process therefor. According to the present invention, color matching can be easily made, and a film of the obtained color-matched powder coating composition is excellent in finished appearance and outstanding in properties.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: December 18, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kazuhiko Ohnishi, Hidefumi Takanashi, Yugen Kawamoto
  • Patent number: 6331256
    Abstract: Fluorine-containing water is treated by contacting the fluorine-containing water with calcium carbonate to react the fluorine in the fluorine-containing water with the calcium carbonate and fix it as calcium fluoride. After the fluorine-containing water is contacted with the calcium salt in the reaction tank to react the fluorine in the fluorine-containing water with the calcium salt and fix it as calcium fluoride, it is subjected to solid/liquid separation, and the treated water is removed while a portion of the sludge concentrated by the solid/liquid separation is returned to the reaction tank.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: December 18, 2001
    Assignee: Fujitsu Limited
    Inventors: Satoshi Kezuka, Takayuki Sadakata
  • Patent number: 6331891
    Abstract: An apparatus for assembling a semiconductor device including a stage having a substrate support surface for supporting a substrate, and a support member for carrying a semiconductor element to a position on or near the substrate supported by the stage. A microscope unit having a coaxial illuminating unit is arranged inclined to the substrate support surface of the stage, and a counter illuminating unit is arranged inclined on the opposite side from the microscope unit with respect to a normal to the substrate support surface of the stage. A camera is arranged at an image forming position of the microscope unit 1 and an image processing unit is connected to the camera. The substrate has a positioning mark, and the camera acquires an image of the positioning mark and an image of a reflection of the positioning mark reflected by the side surface of the semiconductor element.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: December 18, 2001
    Assignee: Fujitsu Limited
    Inventors: Yutaka Nakamura, Tetsuo Koezuka, Hitoshi Komoriya, Takao Hirahara