Patents by Inventor Kazuhiko Maeda

Kazuhiko Maeda 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).

  • Patent number: 7947422
    Abstract: The invention relates to a fluorine-containing compound represented by the formula 1, where R1 is a methyl group or trifluoromethyl group, each of R2 and R3 is independently a hydrogen atom or a group containing (a) a hydrocarbon group having a straight-chain, branched or ring form and having a carbon atom number of 1-25 or (b) an aromatic hydrocarbon group, the group optionally containing at least one of a fluorine atom, an oxygen atom and a carbonyl bond, l is an integer of from 0 to 2, each of m and n is independently an integer of 1-5 to satisfy an expression of m+n?6, and when at least one of R1, R2 and R3 is in a plural number, the at least one of R1, R2 and R3 may be identical with or different from each other.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: May 24, 2011
    Assignee: Central Glass Company, Limited
    Inventors: Shinichi Sumida, Haruhiko Komoriya, Kazuhiko Maeda
  • Patent number: 7932348
    Abstract: Polymers made by polymerization or cyclization condensation of a fluorine-containing polymerizable monomer represented by the formula [1] wherein “a” represents an integer from 1 to 4. The monomer contains a plurality of polymerizable amines in the molecule and at the same time one or more hexafluoroisopropyl group(s). With this structure it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and it can be used for advanced polymer material fields.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: April 26, 2011
    Assignee: Central Glass Company, Limited
    Inventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
  • Patent number: 7919224
    Abstract: A coating material including a low-molecular or medium-molecular organic compound represented by general formula (1). (In the formula, R1 is a single bond, methylene, ethylene or oxygen; and R2 is a hydrogen atom, or a hydrocarbon group, a fluorine-containing alkyl group, a cyclic form containing an aromatic group or aliphatic group, which may contain hydroxy group, carboxyl group, amino group, amide group, imide group, glycidyl group, cyano group, fluorocarbinol group, sulfonic group or sulfonylamide group, and a complex thereof, and may contain a fluorine atom, oxygen atom, nitrogen atom, silicon atom or sulfur atom, and R2's of the same type or different type may be connected by an ester bond, amide bond, ether bond, thioether bond, thioester bond or urethane bond.). This compound can be derived from a diol compound and bicyclo[2.2.2]octane-2,3:5,6-tetracarboxylic anhydride.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: April 5, 2011
    Assignee: Central Glass Company, Limited
    Inventors: Satoru Miyazawa, Satoru Kobayashi, Kazuhiko Maeda
  • Patent number: 7851121
    Abstract: There is provided a photosensitive composition including a polyimide or polyimide precursor. The polyimide and polyimide precursor of the present invention includes a group of a first acid-cleavable group, a first base-cleavable group or a first thermally-cleavable group, and another group of a hydrophilic group, or a protected hydrophilic group by a second acid-cleavable group, a second base-cleavable group, or a crosslinkable group.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: December 14, 2010
    Assignees: Central Glass Co., Ltd., Georgia Tech Research Corporation
    Inventors: Kazuhiro Yamanaka, Michael Romeo, Clifford Henderson, Kazuhiko Maeda
  • Publication number: 20100304303
    Abstract: Disclosed is a fluorinated sulfonic acid salt or fluorinated sulfonic acid group-containing compound having a structure represented by the following general formula (A). In the formula, n indicates an integer of 1 to 10; R indicates a substituted or unsubstituted C1-C20 linear, branched or cyclic alkyl group, a substituted or unsubstituted C1-C20 linear, branched or cyclic alkenyl group, a substituted or unsubstituted C6-C15 aryl group, or a C4-C15 heteroaryl group; and a indicates 1 or 0. A photoacid generator containing the above fluorinated sulfonic acid salt or fluorinated sulfonic acid group-containing compound shows high sensitivity to an ArF excimer laser or the like, presents no concerns about human body accumulation, can generate an acid (photoacid) of sufficiently high acidity, and exhibits high solubility in a resist solvent and good compatibility with a resist resin.
    Type: Application
    Filed: October 31, 2008
    Publication date: December 2, 2010
    Applicant: Central Glass Company, Limited
    Inventors: Kazuhiko Maeda, Yoshimi Isono, Satoru Narizuka
  • Patent number: 7825280
    Abstract: The present invention relates to a fluorine-containing polymerizable monomer represented by the formula [1], [Chem. 31] wherein “a” represents an integer of 1-4. This monomer has a plurality of polymerizable amines in the molecule and at the same time a hexafluoroisopropyl group(s). With this, it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and can be used for advanced polymer material fields.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: November 2, 2010
    Assignee: Central Glass Company, Limited
    Inventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
  • Publication number: 20100260480
    Abstract: A terminal device, upon each receiving of an operation regarding a viewing of a content from a user, stores history information indicating the history thereof. Then upon receiving an instruction for writing a content onto an external recording medium, the terminal device creates preference information based on the history information having been collected therein. The terminal device then writes the content specified by the writing instruction and the created preference information onto the external recording medium.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 14, 2010
    Inventor: Kazuhiko MAEDA
  • Publication number: 20100234556
    Abstract: Polymers made by polymerization or cyclization condensation of a fluorine-containing polymerizable monomer represented by the formula [1] wherein “a” represents an integer from 1 to 4. The monomer contains a plurality of polymerizable amines in the molecule and at the same time one or more hexafluoroisopropyl group(s). With this structure it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and it can be used for advanced polymer material fields.
    Type: Application
    Filed: May 26, 2010
    Publication date: September 16, 2010
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Hiroshi SAEGUSA, Satoru Narizuka, Kazuhiko Maeda
  • Publication number: 20100216070
    Abstract: Photosensitive polyimide compositions include a photosensitive additive and a polymer comprising a repeating unit represented by the following formula (I): wherein R1 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R2 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R3 represents hydrogen or an organic group comprising a hydrophilic group, an acid-cleavable group, a base-cleavable group, a cross-linkable group, or combinations thereof, and h represents an integer of 1 or more. The photosensitive compositions may be formed by combining a precursor polymer with a processing solvent, followed by a relatively low-temperature cyclization process in which the precursor polymer is converted to the final polymer. The resulting polyimide may be separated from the solution and purified. It may then be combined with a casting solvent and a photosensitive additive.
    Type: Application
    Filed: December 4, 2006
    Publication date: August 26, 2010
    Applicants: CENTRAL GLASS CO., LTD., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Kazuhiro Yamanaka, Clifford Henderson, Michael Romeo, Kazuhiko Maeda
  • Patent number: 7781602
    Abstract: The present invention relates to a novel fluorine-containing cyclic compound that is derived from a norbornadiene and hexafluoroacetone and has an oxacyclopentane structure. This compound may be represented by the following formula (1) or (2). Furthermore, the present invention relates to a fluorine-containing polymer compound prepared by a polymerization or copolymerization using this fluorine-containing cyclic compound or its derivative. By using such fluorine-containing polymer compound, it is possible to provide a superior resist material and a fine pattern forming process using the same.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: August 24, 2010
    Assignee: Central Glass Company, Limited
    Inventors: Haruhiko Komoriya, Shinichi Sumida, Katsunori Kawamura, Satoru Kobayashi, Satoru Miyazawa, Kazuhiko Maeda
  • Publication number: 20100204422
    Abstract: The present invention relates to, for example, a fluorine-containing cyclic compound represented by the following general formula (1). In the general formula (1), R1a is a C1-C25 cyclic alkyl group, cyclic alkenyl group or cyclic alkynyl group; each of R2 and R3 is independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group; and each of R1a, R2 and R3 may contain fluorine atom, oxygen atom, sulfur atom, nitrogen atom or an atomic group containing a carbon-carbon double bond.
    Type: Application
    Filed: April 22, 2010
    Publication date: August 12, 2010
    Applicant: Central Glass Company, Limited
    Inventors: Haruhiko Komoriya, Shinichi Sumida, Michitaka Ootani, Takeo Komata, Kazuhiko Maeda
  • Patent number: 7759440
    Abstract: The present invention relates to a polymerizable monomer represented by the general formula (1), wherein R1 is a hydrogen atom, a halogen atom, a hydrocarbon group or a fluorine-containing alkyl group; R2 is a straight-chain or branched alkyl group, a cyclic alkyl group, an aromatic group, or a substituent having at least two of these groups, the R2 being optionally partially fluorinated; R3 is a hydrogen atom, a hydrocarbon group that is optionally branched, a fluorine-containing alkyl group, or a cyclic group having an aromatic or alicyclic structure, the R3 optionally containing a bond of an oxygen atom or carbonyl group; and n is an integer of 1-2.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: July 20, 2010
    Assignees: Central Glass Company, Limited, F-Tech, Inc.
    Inventors: Satoru Miyazawa, Kazuhiko Maeda, Kenji Tokuhisa, Shoji Arai
  • Patent number: 7736835
    Abstract: The present invention relates to, for example, a fluorine-containing cyclic compound represented by the following general formula (1). In the general formula (1), R1a is a C1-C25 cyclic alkyl group, cyclic alkenyl group or cyclic alkynyl group; each of R2 and R3 is independently a hydrogen atom, a halogen atom, or a C1-C25 straight-chain, branched or cyclic alkyl group; and each of R1a, R2 and R3 may contain fluorine atom, oxygen atom, sulfur atom, nitrogen atom or an atomic group containing a carbon-carbon double bond.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: June 15, 2010
    Assignee: Central Glass Company, Limited
    Inventors: Haruhiko Komoriya, Shinichi Sumida, Michitaka Ootani, Takeo Komata, Kazuhiko Maeda
  • Patent number: 7728103
    Abstract: Polymer compounds obtained by polymerization of a fluorine-containing polymerizable monomer represented by the formula [1] in which A represents a single bond, oxygen atom, sulfur atom, CO, CH2, SO, SO2, C(CH3)2, NHCO, C(CF3)2, phenyl, or aliphatic ring; “a” and “b” each independently represent an integer of 0-2, and 1?a+b?4. This fluorine-containing polymerizable monomer can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and can be used for advanced polymer material fields.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 1, 2010
    Assignee: Central Glass Company, Limited
    Inventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
  • Patent number: 7703303
    Abstract: A magnetic disk glass substrate manufacturing method includes a step of polishing a surface of a glass substrate to a mirror surface, a gas heating process step of causing a heated atmosphere and the glass substrate to contact each other so as to heat the glass substrate at a temperature T0, a step of causing a chemically strengthening salt melted exceeding a freezing temperature TF and the glass substrate to contact each other so as to chemically strengthen the glass substrate at a temperature T1, a gas cooling process step of causing a gas coolant and the glass substrate to contact each other so as to cool the glass substrate to a temperature T2, and a liquid cooling process step of causing a liquid coolant and the glass substrate to contact each other so as to cool the glass substrate to a temperature T3, the above-mentioned steps being included in this order, wherein the temperature T2 is set to a temperature less than the freezing temperature TF of the chemical strengthening salt in a gas cooling process
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: April 27, 2010
    Assignee: Hoya Corporation
    Inventors: Hideki Isono, Shinji Eda, Kazuhiko Maeda, Naohiro Kamiya, Nobuyuki Eto
  • Patent number: 7666967
    Abstract: A polymer comprising recurring units (2) obtained through polymerization of an ester compound of formula (1) is used to form a resist composition. R1 is F or C1-C6 fluoroalkyl, R2 is H or C1-C8 alkyl, R3 is O or C1-C6 alkylene, R4 and R5 each are H or C1-C10 alkyl or fluoroalkyl, and R6 is H or an acid labile group. The resist composition, when processed by ArF lithography, has advantages including improved resolution, transparency, minimal line edge roughness, and etch resistance. The resist composition exhibits better performance when processed by ArF immersion lithography with liquid interposed between a projection lens and a wafer.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 23, 2010
    Assignees: Shin-Etsu Chemical Co., Ltd., Panasonic Corporation, Central Glass Co., Ltd.
    Inventors: Yuji Harada, Jun Hatakeyama, Yoshio Kawai, Masaru Sasago, Masayuki Endo, Kazuhiko Maeda, Haruhiko Komoriya, Michitaka Ootani
  • Publication number: 20100035185
    Abstract: A sulfonic acid onium salt represented by the following formula (1) can be used as a superior radiosensitive acid generator for resist compositions. It is possible to form a good pattern by using a resist composition containing this sulfonic acid onium salt. In formula (1), R1 represents a monovalent organic group, and Q+ represents a sulfonium cation or iodonium cation.
    Type: Application
    Filed: February 14, 2008
    Publication date: February 11, 2010
    Applicant: CENTRAL GLASS COMPANY, LTD.
    Inventors: Yuji Hagiwara, Jonathan Joachim Jodry, Satoru Narizuka, Kazuhiko Maeda
  • Publication number: 20100009290
    Abstract: Photosensitive polybenzoxazine compositions include a photosensitive additive such as an o-diazoquinone and a polymer comprising a repeating unit represented by the following formula (I) wherein R1 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R2 comprises an aliphatic group, an alicyclic group, an aromatic group, a heterocyclic group, or combinations thereof, R4 comprises a hydrophilic group, a hydrophilic group protected by an acid-cleavable group, a hydrophilic group protected by a base-cleavable group, a cross-linkable group, or combinations thereof, and i represents an integer of 1 or more. The photosensitive compositions may be formed by combining a precursor polymer with a photosensitive additive and a solvent, patterning the precursor polymer, and heating the precursor polymer at a thermal processing temperature in a range of from about 180° C. to about 300° C. to convert the precursor polymer into the final polymer.
    Type: Application
    Filed: December 3, 2006
    Publication date: January 14, 2010
    Applicants: CENTRAL GLASS CO., LTD., GEORGIA TECH RESEARCH CORPORATION, Office of Technology Licensing
    Inventors: Kazuhiro Yamanaka, Clifford Henderson, Michael Romeo, Kazuhiko Maeda
  • Patent number: 7629434
    Abstract: Disclosed is a fluorine-containing polymerizable monomer represented by the formula [1] below. (In the formula, A represents a single bond, an oxygen atom, a sulfur atom, CO, CH2, SO, SO2, C(CH3)2, NHCO, C(CF3)2, a phenyl or an alicyclic ring; a and b independently represent an integer of 0-2; and 1?a+b?4.) Such a fluorine-containing polymerizable monomer can be used as an effective polymerizable monomer exhibiting water repellency, oil repellency, low water absorbency, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index, low dielectric properties and the like. Consequently, the fluorine-containing polymerizable monomer can be applied to the field of advanced polymer materials.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: December 8, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
  • Publication number: 20090292104
    Abstract: Polymer compounds obtained by polymerization of a fluorine-containing polymerizable monomer represented by the formula [1] in which A represents a single bond, oxygen atom, sulfur atom, CO, CH2, SO, SO2, C(CH3)2, NHCO, C(CF3)2, phenyl, or aliphatic ring; “a” and “b” each independently represent an integer of 0-2, and 1?a+b?4. This fluorine-containing polymerizable monomer can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and can be used for advanced polymer material fields.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 26, 2009
    Applicant: Central Glass Company, Limited
    Inventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda