Patents by Inventor Kenichi Murakami

Kenichi Murakami 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: 20070180672
    Abstract: There is provided a resonant-oscillating-device fabrication method comprising a thickness measurement step of measuring a thickness of a substrate, a piezoelectric-layer formation condition determination step of determining conditions of forming a piezoelectric layer to bring frequency of resonant oscillation of an oscillating element to a desired resonant frequency in accordance with the thickness of the substrate measured in the thickness measurement step, and a piezoelectric-element formation step of forming the piezoelectric element in accordance with the piezoelectric-layer formation conditions determined in the piezoelectric-layer formation condition determination step.
    Type: Application
    Filed: March 28, 2007
    Publication date: August 9, 2007
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenichi Murakami, Nobuaki Asai
  • Publication number: 20070160927
    Abstract: A chemically amplified radiation sensitive resin composition comprising at least (1) a base resin that is an alkali-soluble resin or an alkali-insoluble or slightly alkali-soluble resin protected by an acid dissociable protecting group wherein the amount of an ultrahigh molecular weight component whose weight average molecular weight determined by polystyrene standards as measured by gel permeation chromatography with multi angle laser light scattering method is one million or more is 1 ppm or less, (2) a photo-acid generator capable of generating an acid by irradiation of radiation, and (3) a solvent. This radiation sensitive resin composition is applied onto an object to be processed 2 to form a photoresist film 3. The photoresist film is exposed and then developed to form a fine resist pattern 4 with 0.2 ?m or less in pattern width. Thereafter, dry etching is conducted to form a gate electrode, hole shape patterning or grooved shape patterning of a semiconductor device.
    Type: Application
    Filed: February 5, 2004
    Publication date: July 12, 2007
    Inventors: Kenichi Murakami, Suguru Sassa, Katsuhiro Yoshikawa, Masato Nishikawa, Ken Kimura, Yoshiaki Kinoshita
  • Patent number: 7206190
    Abstract: In an electrode for an electric double layer capacitor of the present invention, the peak value of particle size distribution of graphite particles added to a conductive adhesive is in a range of 2.6 to 3.2 ?m, not less than 100,000 dimples having a largest outer diameter in a range of 4 to 10 ?m and a depth in a range of 4 to 15 ?m are formed on the surface of the collector sheet per 1 cm2, and the occupied area of the dimples to the entire surface area of the collector sheet is not more than 50%. By determining the saponification value of polyvinylalcohol which is used as a binder component of the conductive adhesive in a range of 90.0 to 98.5, adhesiveness of the collector sheet and the electrode forming sheet is improved. Furthermore, by substituting H atoms contained in the polyvinylalcohol with Si atoms, adhesiveness of the collector sheet and the electrode forming sheet can be further improved.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: April 17, 2007
    Assignees: Honda Motor Co., Ltd., No-Tape Industrial Co., Ltd., Daido Metal Company Ltd.
    Inventors: Kenichi Murakami, Manabu Iwaida, Shigeki Oyama, Toshiaki Fukushima, Tomohiko Kawaguchi, Kouki Ozaki, Masanori Tsutsui
  • Publication number: 20070026623
    Abstract: A method is provided for optimizing the physical characteristics of a coating solution for a polarizable electrode layer formed on a collector. A first step is carried out to prepare a coating solution that includes porous particles, a fluorine-based binder, a good solvent that dissolves said fluorine-based binder, and a poor solvent that does not dissolve said fluorine-based binder. A second step is carried out to coat a collector with said coating solution to form the polarizable electrode layer on the collector. The viscosity of said coating solution for the polarizable electrode layer is set to between 0.5 to 3.5 Pa·s and a weight ratio (GS/PS) of said good solvent (GS) and said poor solvent (PS) is set to between 60/40 to 80/20. The occurrence of cracks in the polarizable electrode layer and large nonuniformities in the thickness of the polarizable electrode layer can thus be prevented.
    Type: Application
    Filed: May 16, 2006
    Publication date: February 1, 2007
    Applicants: TDK Corporation, Honda Motor Co., Ltd.
    Inventors: Kiyonori Hinoki, Tsuyoshi Ichiki, Kazutoshi Emoto, Takehiko Sasaki, Kenichi Murakami, Shigeki Oyama, Manabu Iwaida
  • Publication number: 20070026140
    Abstract: A method is provided for optimizing the physical characteristics of a coating solution for an undercoat layer formed between a polarizable electrode layer and surface-roughened collector. A first step is carried out to form an undercoat layer on a collector whose surface has been roughened, and a second step is carried out to form a polarizable electrode layer on the undercoat layer. The first step is performed by coating the collector with a coating solution for the undercoat layer that includes electroconductive particles, a binder, and a solvent; the viscosity of the coating solution for the undercoat layer is set to from 0.15 to 0.75 Pa·s, and the weight ratio (P/B) of the electroconductive particles (P) and binder (B) is set to from 20/80 to 40/60. The coating area of the undercoat layer can thereby be adjusted with high precision, and the resistance of the undercoat layer can be reduced.
    Type: Application
    Filed: May 16, 2006
    Publication date: February 1, 2007
    Applicants: TDK Corporation, Honda Motor Co., Ltd.
    Inventors: Kiyonori Hinoki, Tsuyoshi Ichiki, Kazutoshi Emoto, Takehiko Sasaki, Kenichi Murakami, Shigeki Oyama, Manabu Iwaida
  • Patent number: 7168562
    Abstract: A container for a long electrode sheet for electric double layer capacitor includes a cover closing the opening of the container body, a sealing member sealing a gap between the container body and the cover, a stem fixed to either the container body or the cover so that a bobbin is mounted thereon and formed with a male thread, a bobbin fixing unit including a fastening member having a female thread hole, and a holding unit including two presser plates, the female thread hole of the fastening member being threadedly engage with the male thread of the stem so that the presser plates are fastened thereby to be fixed, the holding unit holding the electrode sheet so as to prevent the electrode sheet from being detached from the bobbin by pressing two ends of electrode sheet.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 30, 2007
    Assignees: Daido Metal Company, Ltd., Honda Motors Co., Ltd.
    Inventors: Kouki Ozaki, Masanori Tsutsui, Manabu Iwaida, Shigeki Oyama, Kenichi Murakami
  • Patent number: 7160615
    Abstract: An electrode sheet of an electric double layer capacitor is produced by using granules for formation of an electrode of an electric double layer capacitor which are obtained by kneading and then crushing materials including an activated material, a conductive filler, and a binder at 50 to 97 mass-%, 1 to 30 mass-%, and 2 to 20 mass-%, respectively, and which are essentially granules whose diameter is in a range of 47 to 840 ?m. A method for manufacturing a sheet-like electrode by mixing and kneading materials including an activated carbon, carbon black, and PTFE into a kneaded material, producing a forming material by converting the kneaded material into granules, and forming and rolling the forming material.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: January 9, 2007
    Assignees: Honda Motor Co., Ltd., Daido Metal Company Ltd.
    Inventors: Manabu Iwaida, Shigeki Oyama, Kenichi Murakami, Kouki Ozaki, Masanori Tsutsui
  • Patent number: 7154738
    Abstract: A polarizing electrode for an electric double layer capacitor has good moldability and is capable of achieving higher density of electrode and higher capacity. An electric double layer capacitor employs the same. The polarizing electrode for an electric double layer capacitor is made of an activated carbon obtained by activating a hard-to-graphitize material (for example, phenol resin) with water vapor, and the activated carbon has a median particle size within a range from 4 ?m to 8 ?m in the particle size distribution as measured by a laser diffraction method and a benzene adsorption ratio of not less than 47.0% and not more than 60% by weight of activated carbon.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: December 26, 2006
    Assignees: Honda Motor Co., Ltd., Kuraray Chemical Co., Ltd.
    Inventors: Shigeki Oyama, Manabu Iwaida, Kenichi Murakami
  • Patent number: 7129017
    Abstract: A chemically amplified resist composition which comprises a base resin reacting in the presence of an acid, a photo acid generator generating an acid upon exposure, and a compound having the combination of an acetal moiety and a site which is eliminated by an acid in its molecule, or which comprises a base resin, which is a copolymer having the combination of an acetal moiety and a site eliminated by an acid in one repeating unit and reacts in the presence of an acid, and a photo acid generator generating an acid upon exposure.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: October 31, 2006
    Assignee: Fujitsu Limited
    Inventors: Hajime Yamamoto, Kenichi Murakami, Satoshi Takechi
  • Publication number: 20060185767
    Abstract: Non-oriented electrical steel sheet remarkably improved in magnetic properties in the rolling direction by a method superior in cost and productivity, that is, non-oriented electrical steel sheet excellent in magnetic properties in the rolling direction comprising, by wt %, Si in an amount of 2.0% or less, Mn in 3.0% or less, Al in 1.0% to 3.0%, at least one of Sn, Sb, Cu, Ni, Cr, P, REM, Ca, and Mg in a total of 0.002% to 0.5%, and a balance of Fe and unavoidable impurities and having a ratio (B50L/Bs) of the magnetic flux density B50L in the rolling direction after stress relief annealing and a saturated magnetic flux density Bs of 0.85 or more and an core loss W15/50L of 2.0 W/kg or less, produced by the method of annealing the hot band at 800° C. to 1100° C. for 30 seconds or more to achieve a crystal grain size after final annealing of 50 ?m or less, skin pass rolling the sheet by a reduction of 3% to 10%, then stress relief annealing it. Further, a cold rolling reduction of 60% to 75% is preferable.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 24, 2006
    Inventors: Yoshihiro Arita, Kenichi Murakami
  • Patent number: 7095604
    Abstract: In an electric double-layer capacitor, a solution of a quaternary ammonium borofluoride compound in propylene carbonate is used as an electrolyte. The electrode includes alkali-activated carbon made using meso-phase pitch as a starting material, and a conductive filler having a rest potential smaller than that of the alkali-activated carbon in the electrolyte. The amount Fc of conductive filler incorporated in the electrode is set in a range of 10% by weight?Fc?40% by weight. Such electric double-layer capacitor has a large electrostatic capacity and excellent durability.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: August 22, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Minoru Noguchi, Manabu Iwaida, Naohiko Oki, Eisuke Komazawa, Takahiro Takeshita, Kenichi Murakami
  • Patent number: 7092240
    Abstract: A process for producing an electrode for an electric double layer capacitor in which an alcohol based solvent which is a forming aid agent added during preparation of an electrode forming sheet is contained in the electrode forming sheet, and the electrode forming sheet and the collector sheet are joined without removing the solvent. Furthermore, a process for producing an electrode for an electric double layer capacitor in which an alcohol based solvent is added to the electrode forming sheet just before the joining process of the electrode forming sheet and the collector sheet.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: August 15, 2006
    Assignees: Honda Motor Co., Ltd., Daido Metal Company Ltd.
    Inventors: Kenichi Murakami, Manabu Iwaida, Shigeki Oyama, Kouki Ozaki, Masanori Tsutsui
  • Patent number: 7077932
    Abstract: A sheet electrode with a predetermined thickness for an electric double layer capacitor is made by carrying out a roller rolling step in which a long sheet intermediate is made from a material containing a carbonaceous powder, a conductive assistant and a binder and thereafter. The sheet intermediate is passed between a pair of rolling rollers to be wound up by a winding section while being drawn out of a drawing section. The roller rolling step includes drawing the sheet intermediate out of the drawing section under a predetermined tension applied to the sheet intermediate, and controlling a widthwise position of the sheet intermediate immediately before the rolling rollers by an edge position controller, and winding the sheet intermediate rolled by the rollers onto a winding section while the winding section is applying a predetermined pressure to a rolling side drive roller located adjacent to the winding section and rotated at a predetermined speed.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: July 18, 2006
    Assignees: Daido Metal Company, Ltd., Honda Motors Co., Ltd.
    Inventors: Kouki Ozaki, Masanori Tsutsui, Manabu Iwaida, Shigeki Oyama, Kenichi Murakami
  • Patent number: 7068493
    Abstract: In an electrode drying process in which the electrode is molded in a sheet shape by kneading activated carbon powder, a binding material and an organic solvent for lubrication and a polarizing property electrode is formed by heating and removing the organic solvent for lubrication in the molded electrode, the organic solvent for lubrication included in the electrode is removed in a state in which the above electrode is widened in the sheet shape. In a manufacturing method of an electrode sheet for the electrical double layer capacitor, continuous drying and vacuum drying are performed in a drying process.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: June 27, 2006
    Assignees: Honda Motor Co., Ltd., Daido Metal Company Ltd.
    Inventors: Manabu Iwaida, Shigeki Oyama, Kenichi Murakami, Kenji Sato, Kouki Ozaki, Masanori Tsutsui
  • Patent number: 7061750
    Abstract: A polarizing electrode for an electric double layer capacitor has good moldability and can achieving higher density of electrode and higher capacity, and an electric double layer capacitor employs the same. The electric double layer capacitor is made of an activated carbon obtained by activating a hard-to-graphitize material (for example, phenol resin) with water vapor, and the activated carbon has a median particle size within a range from 4 ?m to 8 ?m in the particle size distribution and at least a peak observed on the side of smaller particle size than the median particle size in the particle size distribution.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: June 13, 2006
    Assignees: Honda Motor Co., Ltd., Daido Metal Company Ltd., Kuraray Chemical Co., Ltd.
    Inventors: Shigeki Oyama, Manabu Iwaida, Naohiko Oki, Kenichi Murakami, Kouki Ozaki, Masanori Tsutsui, Kiyoto Otsuka
  • Patent number: 7057879
    Abstract: By using the polarized electrode for electric double layer capacitor of the present invention, which is produced by mixing powdery activated carbon with a binder, and is characterized by the concentration of an organic compound being not more than 300 (ppm), the amount of organic compounds which remain in the pore of the powdery activated carbon decrease, and a possibility of forming the electric double layer by adsorption of electrolytic ion can be prevented. Thereby, an electric double layer is sufficiently formed inside the pore of the powdery activated carbon, and the diffusion resistance between the powdery activated carbon and the electrolyte becomes low. By constituting as such, an electric double layer capacitor with a large electrostatic capacity and a little internal resistance can be obtained.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: June 6, 2006
    Assignee: Honda Motor Co., Ltd.
    Inventors: Manabu Iwaida, Shigeki Oyama, Kenichi Murakami, Kenji Sato
  • Publication number: 20060115550
    Abstract: A sheet electrode with a predetermined thickness for an electric double layer capacitor is made by carrying out a roller rolling step in which a long sheet intermediate is made from a material containing a carbonaceous powder, a conductive assistant and a binder and thereafter. The sheet intermediate is passed between a pair of rolling rollers to be wound up by a winding section while being drawn out of a drawing section. The roller rolling step includes drawing the sheet intermediate out of the drawing section under a predetermined tension applied to the sheet intermediate, and controlling a widthwise position of the sheet intermediate immediately before the rolling rollers by an edge position controller, and winding the sheet intermediate rolled by the rollers onto a winding section while the winding section is applying a predetermined pressure to a rolling side drive roller located adjacent to the winding section and rotated at a predetermined speed.
    Type: Application
    Filed: January 18, 2006
    Publication date: June 1, 2006
    Applicants: Daido Metal Company Ltd., Honda Motor Co., Ltd.
    Inventors: Kouki Ozaki, Masanori Tsutsui, Manabu Iwaida, Shigeki Oyama, Kenichi Murakami
  • Publication number: 20060007639
    Abstract: By using the polarized electrode for electric double layer capacitor of the present invention, which is produced by mixing powdery activated carbon with a binder, and is characterized by the concentration of an organic compound being not more than 300 (ppm), the amount of organic compounds which remain in the pore of the powdery activated carbon decrease, and a possibility of forming the electric double layer by adsorption of electrolytic ion can be prevented. Thereby, an electric double layer is sufficiently formed inside the pore of the powdery activated carbon, and the diffusion resistance between the powdery activated carbon and the electrolyte becomes low. By constituting as such, an electric double layer capacitor with a large electrostatic capacity and a little internal resistance can be obtained.
    Type: Application
    Filed: November 26, 2003
    Publication date: January 12, 2006
    Inventors: Manabu Iwaida, Shigeki Oyama, Kenichi Murakami, Kenji Sato
  • Publication number: 20050225929
    Abstract: In an electrode for an electric double layer capacitor of the present invention, the peak value of particle size distribution of graphite particles added to a conductive adhesive is in a range of 2.6 to 3.2 ?m, not less than 100,000 dimples having a largest outer diameter in a range of 4 to 10 ?m and a depth in a range of 4 to 15 ?m are formed on the surface of the collector sheet per 1 cm2, and the occupied area of the dimples to the entire surface area of the collector sheet is not more than 50%. By determining the saponification value of polyvinylalcohol which is used as a binder component of the conductive adhesive in a range of 90.0 to 98.5, adhesiveness of the collector sheet and the electrode forming sheet is improved. Furthermore, by substituting H atoms contained in the polyvinylalcohol with Si atoms, adhesiveness of the collector sheet and the electrode forming sheet can be further improved.
    Type: Application
    Filed: June 21, 2005
    Publication date: October 13, 2005
    Inventors: Kenichi Murakami, Manabu Iwaida, Shigeki Oyama, Toshiaki Fukushima, Tomohiko Kawaguchi, Kouki Ozaki, Masanori Tsutsui
  • Publication number: 20050217761
    Abstract: In a method for manufacturing grain-oriented silicon steel with mirror-like surface by applying an aqueous slurry of an annealing separator, magnetic properties are stabilized by controlling the amount of moisture, carried in the annealing separator consisting mainly of alumina after application and drying thereof, to not more than 1.5%, controlling the partial water vapor pressure during finish-annealing and eliminating the variation (instability) in secondary recrystallization caused by the inhibitor reaction at the interface.
    Type: Application
    Filed: January 7, 2003
    Publication date: October 6, 2005
    Inventors: Yoshiyuki Ushigami, Shuichi Nakamura, Hiroyasu Fujii, Kenichi Murakami