Patents by Inventor Norio Ishikawa

Norio Ishikawa 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: 20050252523
    Abstract: A cleaning solution for a mask used in a vacuum vapor deposition step in the production of a low molecular weight organic EL device is provided, the cleaning solution including one type or two or more types of aprotic polar solvent. There is also provided a cleaning method for a mask used in a vacuum vapor deposition step in the production of a low molecular weight organic EL device, wherein cleaning is carried out by immersion or jet flow using the cleaning solution.
    Type: Application
    Filed: July 20, 2005
    Publication date: November 17, 2005
    Applicants: Kanto Kagaku Kabushiki Kaisha, c/o Sanyo Electric Co., Ltd.
    Inventors: Norio Ishikawa, Yoshitaka Kinomura, Hideki Hijiya
  • Publication number: 20050236362
    Abstract: A method of manufacturing a semiconductor device forms an interlayer insulating film on a nickel silicide layer formed on a substrate, and forms a through hole by performing dry etching using a resist pattern, formed on the interlayer insulating film, as a mask and then removing the resist pattern by ashing. A wafer after an ashing process is cleaned using a cleaning solution comprised of aqueous solution having a content of the fluorine-containing compound of 1.0 to 5.0 mass %, a content of chelating agent of 0.2 to 5.0 mass %, and a content of the organic acid salt of 0.1 to 3.0 mass %.
    Type: Application
    Filed: April 27, 2005
    Publication date: October 27, 2005
    Applicants: NEC ELECTRONICS CORPORATION, KANTO KAGAKU KABUSHIKI KAISHA
    Inventors: Hidemitsu Aoki, Tatsuya Suzuki, Takuo Ohwada, Kaoru Ikegami, Norio Ishikawa
  • Publication number: 20050209119
    Abstract: The invention provides etching liquid compositions for transparent conducting films wherein foaming is suppressed and residues do not occur after etching. The etching liquid compositions include an etching liquid for transparent conducting films and one or more compounds selected from the group consisting of polysulfonic acid compounds and polyoxyethylene-polyoxypropylene block copolymers.
    Type: Application
    Filed: May 13, 2005
    Publication date: September 22, 2005
    Applicant: Kanto Kagaku Kabushiki Kaisha
    Inventors: Norio Ishikawa, Kiyoto Mori
  • Publication number: 20050209118
    Abstract: A photoresist residue remover composition is provided that removes a photoresist residue formed by a resist ashing treatment after dry etching in a step of forming, on a substrate surface, wiring of any metal of aluminum, copper, tungsten, and an alloy having any of these metals as a main component, the composition including one or two or more types of inorganic acid and one or two or more types of inorganic fluorine compound. There is also provided a process for producing a semiconductor circuit element wherein, in a step of forming wiring of any metal of aluminum, copper, tungsten, and an alloy having any of these metals as a main component, the photoresist residue remover composition is used for removing a photoresist residue formed by a resist ashing treatment after dry etching.
    Type: Application
    Filed: December 9, 2004
    Publication date: September 22, 2005
    Inventors: Hiroshi Kawamoto, Mikie Miyasato, Takuo Oowada, Norio Ishikawa
  • Patent number: 6914039
    Abstract: The invention provides etching liquid compositions for transparent conducting films wherein foaming is suppressed and residues do not occur after etching. The etching liquid compositions include an etching liquid for transparent conducting films and one or more compounds selected from the group consisting of polysulfonic acid compounds and polyoxyethylene-polyoxypropylene block copolymers.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: July 5, 2005
    Assignee: Kanto Kagaku Kabushiki Kaisha
    Inventors: Norio Ishikawa, Kiyoto Mori
  • Publication number: 20050124524
    Abstract: A cleaning solution for a mask used in a vacuum vapor deposition step in the production of a low molecular weight organic EL device is provided, the cleaning solution including one type or two or more types of aprotic polar solvent. There is also provided a cleaning method for a mask used in a vacuum vapor deposition step in the production of a low molecular weight organic EL device, wherein cleaning is carried out by immersion or jet flow using the cleaning solution.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 9, 2005
    Applicants: Kanto Kagaku Kabushiki Kaisha, Sanyo Electric Co., Ltd.
    Inventors: Norio Ishikawa, Yoshitaka Kinomura, Hideki Hijiya
  • Patent number: 6877518
    Abstract: A chemical solution treatment apparatus for dissolving and removing ruthenium-based metal adhering to a substrate by a chemical solution, includes: a chemical solution treatment unit; a reservoir unit; and a chemical solution circulation system. The chemical solution inside treatment unit comprises a chemical solution supplying nozzle, and a recovering mechanism. The reservior unit has a structure having a clearence part to be in contact with the chemical solution so that gas components derived from the ruthenium-based metal dissolved and removed in said chemical solution treatment are volatilized outside the chemical solution during circulation of the chemical solution, and comprises an exhaust duct.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: April 12, 2005
    Assignees: NEC Electronics Corporation, Kanto Kagaku Kabushiki Kaisha
    Inventors: Kaori Watanabe, Hidemitsu Aoki, Norio Ishikawa, Kiyoto Mori
  • Patent number: 6864044
    Abstract: The object of the present invention is to provide, in the production of semiconductor circuit elements, a photoresist residue removing liquid composition which is excellent for removing photoresist residues after dry etching without attacking the wiring material or the interlayer insulating film etc. This is made possible by a photoresist residue removing liquid composition containing one or more members selected from the group consisting of reducing compounds and their salts and one or more members selected from the group consisting of aliphatic polycarboxylic acids and their salts.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: March 8, 2005
    Assignee: Kanto Kagaku Kabushiki Kaisha
    Inventors: Norio Ishikawa, Takuo Oowada
  • Publication number: 20050007015
    Abstract: A method of manufacturing a laminated structure capable of being patterned into a favorable shape by preventing side etching is provided. After an adhesive layer made of ITO or the like, a reflective layer made of silver or an alloy including silver, and a barrier layer made of ITO or the like are laminated in order on a substrate with a planarizing layer which is a base layer in between, a mask is formed on the barrier layer, and the adhesive layer, the reflective layer and the barrier layer are etched at once by using the mask to form a laminated structure. As an etching gas, for example, a gas including methane (CH4) is preferable. The laminated structure is used as an anode, and an insulating film, an organic layer including a light-emitting layer and a common electrode as a cathode are laminated in order on the laminated structure so as to form an organic light-emitting device. The laminated structure can be used as a reflective electrode, a reflective film or wiring of a liquid crystal display.
    Type: Application
    Filed: May 28, 2004
    Publication date: January 13, 2005
    Inventors: Seiichi Yokoyama, Takuo Ohwada, Norio Ishikawa
  • Publication number: 20040204329
    Abstract: A cleaning liquid composition used for cleaning a semiconductor substrate having a contact angle between the surface thereof and water dropped thereon of at least 70 degrees is provided, the cleaning liquid composition including an aliphatic polycarboxylic acid and an organic solvent having a hydroxyl group and/or an ether group, and the cleaning liquid composition having a contact angle of at most 40 degrees when dropped on the semiconductor substrate. Also provided is a method for cleaning a semiconductor substrate having a contact angle between the surface thereof and water dropped thereon of at least 70 degrees by means of the above cleaning liquid composition.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 14, 2004
    Inventors: Yumiko Abe, Norio Ishikawa
  • Patent number: 6787293
    Abstract: A photoresist residue remover composition is provided that includes one type or two or more types of fluoride compound and one type or two or more types chosen from the group consisting of glyoxylic acid, ascorbic acid, glucose, fructose, lactose, and mannose (but excluding one that includes ammonium fluoride, a polar organic solvent, water, and ascorbic acid). There is also provided use of the photoresist residue remover composition for removing a photoresist residue and a sidewall polymer remaining after dry etching and after ashing.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: September 7, 2004
    Assignees: Kanto Kagaku Kabushiki Kaisha, NEC Electronics Corporation
    Inventors: Takuo Oowada, Norio Ishikawa, Hidemitsu Aoki, Kenichi Nakabeppu, Yoshiko Kasama
  • Publication number: 20040167047
    Abstract: The present invention relates to a cleaning solution capable of removing efficiently at the same time particles and metallic impurities from a substrate surface without corroding metallic materials.
    Type: Application
    Filed: February 19, 2004
    Publication date: August 26, 2004
    Inventors: Norio Ishikawa, Yumiko Abe, Kiyoto Mori
  • Patent number: 6730644
    Abstract: The present invention relates to a cleaning solution capable of removing efficiently at the same time particles and metallic impurities from a substrate surface without corroding metallic materials. The cleaning solution for cleaning substrates of electronic materials comprises an organic acid compound and at least one selected from the group consisting of dispersants and surfactants.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: May 4, 2004
    Assignee: Kanto Kagaku Kabushiki Kaisha
    Inventors: Norio Ishikawa, Yumiko Abe, Kiyoto Mori
  • Publication number: 20040002020
    Abstract: A photoresist residue remover composition is provided that includes one type or two or more types of fluoride compound and one type or two or more types chosen from the group consisting of glyoxylic acid, ascorbic acid, glucose, fructose, lactose, and mannose (but excluding one that includes ammonium fluoride, a polar organic solvent, water, and ascorbic acid). There is also provided use of the photoresist residue remover composition for removing a photoresist residue and a sidewall polymer remaining after dry etching and after ashing.
    Type: Application
    Filed: March 21, 2003
    Publication date: January 1, 2004
    Inventors: Takuo Oowada, Norio Ishikawa, Hidemitsu Aoki, Kenichi Nakabeppu, Yoshiko Kasama
  • Publication number: 20030216270
    Abstract: A post-CMP washing liquid composition is provided which includes one type or two or more types of aliphatic polycarboxylic acids and one type or two or more types selected from the group consisting of glyoxylic acid, ascorbic acid, glucose, fructose, lactose, and mannose, and which has a pH of less than 3.0. This washing liquid has excellent performance in removing micro particles and metal impurities adhering to the surface of a semiconductor substrate after CMP and does not corrode a metal wiring material.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 20, 2003
    Inventors: Yumiko Abe, Takuo Oowada, Norio Ishikawa, Hidemitsu Aoki, Hiroaki Tomimori
  • Publication number: 20030168088
    Abstract: The present invention relates to a chemical solution treatment apparatus for dissolving and removing ruthenium-based metal adhering to a substrate by a chemical solution, comprising: a chemical solution treatment unit which make the substrate come into contact with said chemical solution; a reservoir unit for storing the chemical solution which is used in said chemical solution treatment unit; and a chemical solution circulation system having said reservoir unit, a chemical solution supplying means for supplying the chemical solution inside said reservoir unit to said chemical solution treatment unit, and a chemical solution returning means for returning the chemical solution, which is used and recovered in said chemical solution treatment unit, to said reservoir unit, wherein: said chemical solution treatment unit comprises a chemical solution supplying nozzle for supplying the chemical solution to the substrate, and a recovering mechanism for recovering the used chemical solution; said reservoir unit has a
    Type: Application
    Filed: December 4, 2002
    Publication date: September 11, 2003
    Inventors: Kaori Watanabe, Hidemitsu Aoki, Norio Ishikawa, Kiyoto Mori
  • Publication number: 20030171233
    Abstract: There is provided a washing liquid composition for a semiconductor substrate having a contact angle between the surface thereof and water dropped thereon of at least 70 degrees, the washing liquid composition including an aliphatic polycarboxylic acid and a surfactant, and the washing liquid composition having a contact angle of at most 50 degrees when dropped on the semiconductor substrate. It is thereby possible to effectively remove particles and metals on the surface of a hydrophobic substrate without corroding it.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 11, 2003
    Inventors: Yumiko Abe, Norio Ishikawa, Hidemitsu Aoki, Hiroaki Tomimori, Yoshiko Kasama
  • Patent number: 6614518
    Abstract: A multi-point light measuring system for sensing an optical characteristic such as illuminance at a plurality of measurement points with respect to the same illumination is configured by a single main unit, a plurality of light measuring units and a plurality of adapters for data communication. At least one light measuring unit and the main unit are connected by wired or wireless adapters, and each adjoining two light measuring units is connected by wired adapters. A controller of the main unit controls the light measuring units by commands transmitted by the adapters for obtaining light measuring data from the light measuring units and displays a measurement result on a display of the main unit.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: September 2, 2003
    Assignee: Minolta Co., Ltd.
    Inventors: Norio Ishikawa, Norihisa Hosoi, Susumu Shirai, Michio Nishio, Ryuji Tsuji, Tomoya Kimata
  • Publication number: 20030143495
    Abstract: The object of the present invention is to provide, in the production of semiconductor circuit elements, a photoresist residue removing liquid composition which is excellent for removing photoresist residues after dry etching without attacking the wiring material or the interlayer insulating film etc.
    Type: Application
    Filed: December 4, 2002
    Publication date: July 31, 2003
    Inventors: Norio Ishikawa, Takuo Oowada
  • Publication number: 20030135088
    Abstract: A core 5 is composed of a J-shaped front core portion 1, a J-shaped rear core portion 2, a U-shaped left core portion 3, and a U-shaped right core portion 4. These core portions 1 to 4 have one-side end portions which are substantially directed in one and the same direction and which are fixed to one another to thereby form a center portion 6. A coil 7 is wound on the center portion 6. The core 5 is attached to a core support member attached closely to a patient. In use, the coil apparatus is made close or near to the patient. When the coil 7 is supplied with a pulse current, pulse-like magnetic flux is generated in the purdendal nerve and pelvic floor muscle group of the patient so that an eddy current is induced. The patient in the region where magnetic flux is generated and an eddy current is generated, is stimulated sufficiently, so that urinary incontinence treatment is performed.
    Type: Application
    Filed: March 17, 2003
    Publication date: July 17, 2003
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Norio Ishikawa, Shin Suda