Patents by Inventor Koichi Yamaguchi

Koichi Yamaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090160600
    Abstract: A varistor 1 comprises a varistor element 10, a pair of external electrodes 30a, 30b on one main side of the varistor element 10 and a resistor 60 on the same main side, wherein the resistor 60 is formed so as to connect the pair of external electrodes 30a, 30b. The varistor element 10 contains zinc oxide as the main component and Ca oxides, Si oxides and rare earth metal oxides as accessory components, wherein the proportion X of the calcium oxides in terms of calcium atoms is 2-80 atomic percent with respect to 100 mol of the main component and the proportion Y of the silicon oxides in terms of silicon atoms is 1-40 atomic percent with respect to 100 mol of the main component, X/Y satisfying formula (1) below, and the external electrodes and resistor contain oxides other than bismuth oxide and copper oxide.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Applicant: TDK Corporation
    Inventors: Miyuki YANAGIDA, Koichi Yamaguchi, Katsuhiko Igarashi, Naoki Chida
  • Patent number: 7547333
    Abstract: In a fuel reforming system (32) of a fuel cell system (1), which includes a reformer (7) generating hydrogen-containing gas to be an electromotive fuel and a combustor (6) generating combustion gas, the combustor (6) has two combustion parts including a main combustion part (20) and a sub-combustion part (18), a fuel pre-vaporization part (19) between the two combustion parts and a main fuel injection valve (16) and a sub-fuel injection valve (15) which supply the fuel to the respective combustion parts.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: June 16, 2009
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Koichi Yamaguchi, Takashi Aoyama, Tadashi Shoji
  • Publication number: 20090143543
    Abstract: A perfluoropolyether-polyorganosiloxane block copolymer represented by the following formula (1), the block copolymer having a number average molecular weight, reduced to polystyrene, of from 2,000 to 20,000, W2-Q-Rf-Q-(W1-Q-Rf-Q)g-W2??(1) wherein Rf is a perfluoropolyether block, W1 is a polyorganosiloxane block having at least one group represented by the following formula (2) wherein X is a hydrolyzable group, R1 is a C1-4 alkyl group or a phenyl group, y is an integer of from 1 to 5, and a is 2 or 3, Q is a C2-12 divalent connecting group which may contain an oxygen atom and/or nitrogen atom, W2 is an organosiloxane residue having a group represented by the aforesaid formula (1), and g is an integer of from 1 to 11.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Inventors: Yuji YAMANE, Noriyuki Koike, Koichi Yamaguchi
  • Patent number: 7534886
    Abstract: A fluorine-containing amide compound represented by the following formula (1): wherein Rf is a divalent perfluoropolyether group, and each of R1 and R2 is a substituted or unsubstituted divalent hydrocarbon group, which may be the same with or different from each other.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: May 19, 2009
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Koichi Yamaguchi
  • Publication number: 20090120587
    Abstract: A sheet sticking table 13 used for sticking an adhesive sheet S onto the upper surface of a semiconductor wafer W is provided. The sheet sticking table 13 comprises an outer table 51 and an inner table 52. The outer table 51 and inner table 52 are provided movably in the vertical direction via uniaxial robots 54, 56 respectively, and the inner table 52 is provided movably together with the outer table 51 in the vertical direction when the outer table 51 is moved in the vertical direction.
    Type: Application
    Filed: June 26, 2006
    Publication date: May 14, 2009
    Applicant: LINTEC CORPORATION
    Inventors: Tsuyoshi Kurita, Koichi Yamaguchi, Kenji Kobayashi
  • Publication number: 20090107633
    Abstract: An apparatus and method for peeling, and an apparatus and method for laminating which are preferable to reduce the overall size of the apparatus are provided. When a transport means 8 transports a wafer W with glass plate G, and a holding roller 2, in synchronization with the transportation, rotates around its central axis, the holding roller 2 contacts the wafer W to peel it and hold it thereon, and after the peeling is completed, the transport means 8 transports a ring frame F in a direction opposite to the direction for peeling. In synchronization with the transportation, the holding roller 2 rotates around its central axis in a direction opposite to the direction for peeling, so that the holding roller 2 sticks the wafer W held on the holding roller to the ring frame F by means of a dicing tape T2.
    Type: Application
    Filed: May 23, 2006
    Publication date: April 30, 2009
    Applicant: LINTEC CORPORATION
    Inventors: Koichi Yamaguchi, Takeshi Akechi, Yoshiaki Sugishita
  • Patent number: 7488839
    Abstract: Fluorinated organosilicon compounds having formula (1) wherein Rf is a perfluoroalkyl group containing at least one ether bond, Q is a polyether group in the form of a homopolymer chain of ethylene glycol or propylene glycol or a copolymer chain of both, R is hydrogen or alkyl, X is a divalent linking group exclusive of oxygen atom, Y is a divalent linking group, p is an integer of at least 3, and n is a number of 0<n<3 have an excellent surface tension reducing ability and can be produced with ease of molecular weight control while minimizing formation of solvent-insoluble components. These compounds are safe to the human body and useful as a surfactant.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: February 10, 2009
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiromasa Yamaguchi, Hirofumi Kishita, Koichi Yamaguchi
  • Publication number: 20090012220
    Abstract: A coating composition comprising a fluorine-containing silicon compound represented by the following formula (1) wherein Z is a linear or branched divalent polyorganosiloxane residue having 1 to 40 siloxane units, R is an alkyl group having 1 to 4 carbon atoms or a phenyl group, X is a hydrolyzable group, Q is a C2-12 divalent connecting group, a is an integer of 2 or 3, b is an integer of from 1 to 10, y is an integer of 1 to 5, and Rf is a group represented by the following formula (2) -Rf1-(Q-W-Q-Rf1)q- ??(2) wherein Rf1 is a perfluoropolyether residue, W is an organopolysiloxane residue having 1 to 40 siloxane units and Q is as defined above and may be the same with or different from each other, and q is an integer of from 0 to 3, and at least one solvent selected from the group consisting of alcohols, esters, ethers, ketones, and perfluoroethers. The coating prepared from the composition is oil-repellent, water-repellent and has water sliding property.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji YAMANE, Noriyuki KOIKE, Koichi YAMAGUCHI, Hirohumi KISHITA
  • Patent number: 7465325
    Abstract: A fuel reforming system generates burnt gas by burning fuel and air in a burner (6) during system startup, and the temperatures of a reforming reactor (7) and carbon monoxide oxidizer (40) are raised by supplying the burnt gas to the reforming reactor (7) and carbon monoxide oxidizer (40). The temperature of the burnt gas produced by the burner (6) is increased according to the elapsed time from the beginning of the startup processing.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: December 16, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Koichi Yamaguchi, Masatoshi Iio, Takao Izumi
  • Publication number: 20080299399
    Abstract: A perfluoropolyether-modified aminosilane is provided having the necessary minimum fluorine content for the compound to exert water and oil repellency, anti-staining and parting properties. This aminosilane can be diluted with common solvents such as alcohols and used as a surface treating agent on various substrates.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Koichi YAMAGUCHI, Hirofumi Kishita
  • Publication number: 20080257217
    Abstract: A diluent for a fluorine-containing silicone coating agent, said diluent comprising (A) at least one selected from diisopropyl ether and hexane, and (B) a fluorinated solvent having a boiling point, at atmospheric pressure, which is higher than that of the component (A) by at least 30° C. and is 180° C. or lower, with a weight ratio of the component (A) to the component (B) ranging from 95/5 to 50/50.
    Type: Application
    Filed: December 20, 2007
    Publication date: October 23, 2008
    Inventors: Koichi Yamaguchi, Hirofumi Kishita
  • Publication number: 20080218301
    Abstract: A multilayer coil component includes a coil formed by stacking first ceramic sheets in which coil conductor patterns are provided and a second ceramic sheet having a lower magnetic permeability than the first ceramic sheets, the coil conductor patterns being connected to each other. The second ceramic sheet is disposed between the first ceramic sheets. In a main surface of the second ceramic sheet, holes or recesses are provided. The first ceramic sheets adjacent to the second ceramic sheet are in contact with inner peripheral surfaces of the holes.
    Type: Application
    Filed: May 27, 2008
    Publication date: September 11, 2008
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Koichi Yamaguchi
  • Patent number: 7389838
    Abstract: Load sharing rates of an internal combustion engine and an electric motor of a hybrid powered vehicle are definitely controlled to improve fuel efficiency of the vehicle during an auxiliary running with using power of the electric motor together with power of the internal combustion engine when a pressing amount of an accelerator pedal of the vehicle is small. In response to a pressing amount information of the accelerator pedal inputted to a hybrid control circuit, the hybrid control circuit calculates the load sharing rates of the internal combustion engine and the electric motor by referring to a preliminarily set control map and controls the motor according to its load sharing rate. The hybrid control circuit sends an electric signal corresponding to the load sharing rate of the internal combustion engine to the internal combustion engine control circuit, instead of the pressing amount information of the accelerator pedal.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: June 24, 2008
    Assignee: Hino Motors, Ltd.
    Inventors: Koichi Yamaguchi, Seiichi Yamaguchi
  • Publication number: 20080114120
    Abstract: A coating composition comprising (A) at least one fluorine-containing organosilicon compound represented by the following formula (1) or (2) and Rf1-QZ1A? ??(1) A?Z1Q-Rf2-(Q-Z2-Q-Rf2)x-QZ1A? ??(2) (B) a fluorine-containing carboxylic acid having a number average molecular weight of from 100 to 10,000 and a fluorine content of at least 25 wt %, wherein an amount of (B) ranges from 0.001 to 10 parts by weight per 100 parts by weight of the component (A). The composition can be cured rapidly even at room temperature to produce water-repellent and antifouling coating.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Inventors: Noriyuki Koike, Yuji Yamane, Hirofumi Kishita, Koichi Yamaguchi
  • Publication number: 20080071042
    Abstract: A perfluoropolyether-polyorganosiloxane copolymer comprising at least one perfluoropolyether block, at least one polyorganosiloxane block which may has a silalkylene group, and two monovalent groups represented by the following formula (1), each one at both ends of the copolymer, wherein X is a hydrolyzable group, R1 is an alkyl group having 1 to 4 carbon atoms or a phenyl group, y is an integer of from 1 to 5, and a is an integer of 2 or 3, said copolymer having a number average molecular weight, reduced to polystyrene, of from 7,000 to 25,000.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 20, 2008
    Inventors: Yuji YAMANE, Noriyuki KOIKE, Hirofumi KISHITA, Koichi YAMAGUCHI
  • Publication number: 20080062633
    Abstract: Herein disclosed a portable electronic apparatus, including: housing; and an output device outputting sound, the output device being disposed on a surface on an inside of a slope disposed on a lower surface of the housing, the slope resulting in the housing being opened in a predetermined direction, and the slope forming a space between the slope and a mounting surface of the housing.
    Type: Application
    Filed: August 21, 2007
    Publication date: March 13, 2008
    Applicant: SONY CORPORATION
    Inventors: Koichi YAMAGUCHI, Toshiharu Tajiri
  • Publication number: 20070240613
    Abstract: A powder coating composition of the present invention includes, as essential components, an epoxy group-containing vinyl copolymer (A) with a glass transition temperature of 40° C. or higher, an epoxy group-containing vinyl copolymer (B) that contains organosiloxane side chains and has a glass transition temperature of 0° C. or lower, and a polyvalent carboxylic acid (C), and is able to form a coating film with excellent external appearance and scratch resistance.
    Type: Application
    Filed: March 9, 2005
    Publication date: October 18, 2007
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Naoyuki Seike, Koichi Yamaguchi, Yutaka Furuya, Tetsuro Agawa
  • Publication number: 20070197758
    Abstract: A fluorine-containing organopolysiloxane represented by the following average compositional formula (1) (Z2Q)?Rf(QZ1A?)2-???(1) wherein Rf is a divalent group containing a perfluoroether residue, Q is a divalent organic group, Z1 is a di- to nona-valent organopolysiloxane residue and may contain a silalkylene bond, ? is an integer of from 1 to 8, ? is a number larger than 0 and smaller than 2, Z2 is a monovalent group represented by the following formula (2) wherein b is an integer of from 1 to 10, R1 may be the same with and different from each other and is an alkyl group having 1 to 4 carbon atoms or a phenyl group, and A is a monovalent group represented by the following formula (3) wherein R2 is an alkyl group having 1 to 4 carbon atoms or a phenyl group, X is a hydrolyzable group, a is 2 or 3, and c is an integer of from 1 to 6.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 23, 2007
    Inventors: Yuii Yamane, Noriyuki Koike, Koichi Yamaguchi, Hirofumi Kishita
  • Publication number: 20070162175
    Abstract: A semiconductor wafer processing tape sticking apparatus is provided and is capable of sticking a semiconductor wafer processing tape to a semiconductor wafer under the optimum conditions based on the processing data that has been written to a data carrier member and that has been read from the data carrier member without accessing the host computer unlike a conventional method. The semiconductor wafer processing tape sticking apparatus includes: a feeding apparatus provided with a feeding shaft to which a semiconductor wafer processing tape winding body can be detachably attached; a tape data read/write device for reading and writing the processing data that has been written to a data carrier member of the semiconductor wafer processing tape winding body; and a tape sticking apparatus for sticking a semiconductor wafer processing tape that has been fed out from the feeding apparatus to the semiconductor wafer based on the processing data that has been read by the tape data read/write device.
    Type: Application
    Filed: June 28, 2006
    Publication date: July 12, 2007
    Applicant: Lintec Corporation
    Inventors: Takeshi Segawa, Koichi Yamaguchi, Yuichi Iwakata
  • Publication number: 20070149755
    Abstract: This thermosetting powder coating composition is a thermosetting powder coating composition which contains a coating forming component which can crosslink and harden by an ester exchange reaction between a carboxylic ester group and a hydroxyl group, and an ester exchange reaction catalyst, in which the ester exchange reaction catalyst is constituted from an organic sulfonate (X) derived from a carboxylic amide and an organic sulfonic acid having fluorine atoms.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 28, 2007
    Applicant: Dainippon Ink and Chemicals Inc.
    Inventors: Yutaka Furuya, Koichi Yamaguchi, Tetsuro Agawa, Kazuo Yamamura