Patents by Inventor Takako Yamaguchi

Takako 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).

  • Patent number: 7592108
    Abstract: A near-field exposure method including preparing a photomask for near-field exposure, having a light blocking film provided on a base material constituting a membrane portion and a support member supporting the base material, wherein a first alignment mark for rough alignment is provided on the support member and a second alignment mark for fine alignment is provided on the membrane portion, setting the photomask and an object to be exposed in a near-field exposure apparatus, aligning the photomask and the object using the first alignment mark, flexing the membrane portion to contact with the object and detecting a positional relation between the membrane portion and the object using the second alignment mark, aligning the photomask and the object based on the detected positional relation and flexing the membrane portion to contact with the object, and exposing the object to light from a light source by way of the photomask.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: September 22, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takako Yamaguchi, Ryo Kuroda
  • Publication number: 20090233232
    Abstract: A photosensitive compound has two or more structural units, in a molecule, represented by the following general formula (1): wherein R1 to R5 are selected from the group consisting of hydrogen atom, halogen atom, alkyl group, alkoxy group, acetoxy group, phenyl group, naphthyl group, and alkyl group in which a part or all of hydrogen atoms are substituted with fluorine atom; and X is a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group.
    Type: Application
    Filed: May 19, 2009
    Publication date: September 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Takako Yamaguchi
  • Publication number: 20090208850
    Abstract: Disclosed is a near-field exposure mask having a light blocking layer formed on a substrate, the light blocking layer having an opening with an opening width narrower than a wavelength of an exposure light source, wherein exposure of an object to be exposed is carried out by use of near-field light to be produced at the opening while the exposure mask and the object to be exposed are placed in contact with each other, an important feature residing in that the light blocking layer is provided by a film that contains silicon in a range from 50% to 100% in terms of mole fraction.
    Type: Application
    Filed: June 7, 2006
    Publication date: August 20, 2009
    Applicant: Canon Kabushiki Kaisha
    Inventors: Toshiki Ito, Natsuhiko Mizutani, Takako Yamaguchi
  • Patent number: 7547503
    Abstract: Provided is a photosensitive silane coupling agent for forming a low-defect microparticle pattern, dot array pattern, or hole array pattern with a smaller number of process steps, and a method of forming a pattern using such photosensitive silane coupling agent. Used is a photosensitive silane coupling agent having a secondary amino group protected by an o-nitrobenzyloxycarbonyl group.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: June 16, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiki Ito, Natsuhiko Mizutani, Takako Yamaguchi, Yasuhisa Inao
  • Publication number: 20080246970
    Abstract: A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and transmitted through or reflected from the openings. The plurality of openings are arranged periodically in a first direction in the metal film, and both a size of each of the plurality of openings and an interval thereof in the first direction are equal to or less than the wavelength of the light.
    Type: Application
    Filed: June 2, 2008
    Publication date: October 9, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryo Kuroda, Natsuhiko Mizutani, Takako Yamaguchi, Yasuhisa Inao, Tomohiro Yamada
  • Patent number: 7419763
    Abstract: A near-field photoresist for formation of a fine pattern with by near-field exposure includes an alkali-soluble novalac resin, a diazyde-type photosensitizer which is photoreactive by near-field exposure, a photoacid generator which generates acid by the near-field exposure, and a solvent.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: September 2, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takako Yamaguchi, Ryo Kuroda
  • Publication number: 20080209321
    Abstract: In the state when the schedule function is activated, when a rotational motion of a display unit using a rotating mechanism thereof is detected, or when an acceleration of a predetermined acceleration value or greater is detected, the mobile terminal apparatus modifies the schedule display based on the above detection. Specifically, the mobile terminal apparatus modifies either the displayed schedule period or the display magnification factor of the display content.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 28, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Kazuyuki Sato, Takako Yamaguchi, Atsumasa Tsuyuki, Toshimitsu Kumagai
  • Publication number: 20080187864
    Abstract: A photosensitive compound has two or more structural units, in a molecule, represented by the following general formula (1): wherein R1 to R5 are selected from the group consisting of hydrogen atom, halogen atom, alkyl group, alkoxy group, acetoxy group, phenyl group, naphthyl group, and alkyl group in which a part or all of hydrogen atoms are substituted with fluorine atom; and X is a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group.
    Type: Application
    Filed: January 28, 2008
    Publication date: August 7, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Takako Yamaguchi
  • Publication number: 20080187865
    Abstract: A photosensitive compound has two or more structural units, in a molecule, represented by the following general formula (1): wherein R1 to R10 are selected from the group consisting of hydrogen atom, halogen atom, alkyl group, alkoxy group, phenyl group, naphthyl group, and alkyl group in which a part or all of hydrogen atoms are substituted with fluorine atom; and X is a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group.
    Type: Application
    Filed: January 28, 2008
    Publication date: August 7, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Takako Yamaguchi
  • Patent number: 7399445
    Abstract: A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and transmitted through or reflected from the openings. The plurality of openings are arranged periodically in a first direction in the metal film, and both a size of each of the plurality of openings and an interval thereof in the first direction are equal to or less than the wavelength of the light.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: July 15, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Kuroda, Natsuhiko Mizutani, Takako Yamaguchi, Yasuhisa Inao, Tomohiro Yamada
  • Publication number: 20080107998
    Abstract: A near-field exposure method in which a light blocking film with an opening having an opening width not greater than a wavelength size of exposure light is contacted to an object to be exposed and in which light from an exposure light source is projected on the light blocking film so that a pattern based on the opening of the light blocking film is formed on the object to be exposed, by use of near-field light produced at the opening, wherein the object to be exposed is prepared by a process that includes (i) a step of providing, upon a substrate having surface irregularity, a shape buffering layer so as to fill the surface irregularity thereof to thereby flatten the surface of the substrate, (ii) a step of providing, upon the shape buffering layer, a light reflecting layer for reflecting the exposure light, and (iii) a step of providing a photosensitive resist layer upon the light reflecting layer, and wherein the exposure is carried out to the object so prepared.
    Type: Application
    Filed: April 26, 2007
    Publication date: May 8, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhisa Inao, Takako Yamaguchi, Toshiki Ito, Natsuhiko Mizutani
  • Publication number: 20080085479
    Abstract: A pattern forming method for forming a pattern comprising a plurality of fine particles disposed on a substrate includes a step of forming, on the substrate, a silane coupling agent-containing layer containing an amino group-containing silane coupling agent; a step of forming a negative resist layer or a dissolution inhibition positive resist layer on the silane coupling agent-containing layer; a step of selectively removing the resist layer to expose the silane coupling agent-containing layer; and a step of disposing the plurality of fine particles on the exposed silane coupling agent-containing layer.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 10, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takako Yamaguchi, Toshiki Ito, Natsuhiko Mizutani
  • Publication number: 20070287105
    Abstract: A process for forming a resist pattern comprises the steps of applying on a substrate to form a photosensitive resist layer a photosensitive composition comprising at least one photosensitive compound having, in the molecule, two or more structural units represented by C6R2-6—CHR1—OR7 or C6R2-6—CHR1—COOR7 where R1 is a hydrogen atom or an alkyl group, at least one of R2, R3, R4, R5, and R6 is a nitro group, and others are selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl, an alkoxy, a phenyl, a naphthyl, and an alkyl in which a part or the entire of hydrogen atoms are substituted by a fluorine atom, and R7 is a substituted or unsubstituted phenylene or naphthylene group dissolved in an organic solvent, irradiating the resist layer selectively with a radiation ray, and developing a portion irradiated by the ray to form a pattern of the resist layer.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 13, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Takako Yamaguchi
  • Patent number: 7303859
    Abstract: There is provided a positive photoresist for near-field exposure excellent in light utilization efficiency even with small layer thickness of the photoresist layer for image formation, and allowing for reduced pattern edge roughness, and a photolithography method including a step of exposing by the near-field exposure the photoresist layer for image formation made thereof. In a positive photoresist containing an alkali-soluble novolak resin and a quinone diazide compound, the film thickness of the photoresist at the time of exposure is not larger than 100 nm, and the absorption coefficient of the photoresist ? (?m?1) for the exposure light is such that 0.5???7.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: December 4, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takako Yamaguchi, Yasuhisa Inao
  • Publication number: 20070275327
    Abstract: A photosensitive resin composition is constituted by a polymer, as a component (A), having a monodisperse molecular weight distribution; and a compound, as a component (B), first generating a functional group which is capable of being silylated by radiation irradiation.
    Type: Application
    Filed: July 17, 2007
    Publication date: November 29, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Takako Yamaguchi
  • Publication number: 20070218398
    Abstract: Provided are a photosensitive silane coupling agent for forming a low-defect microparticle pattern, dot array pattern, or hole array pattern through fewer steps, and a method of forming a pattern using such photosensitive silane coupling agent. Used is a photosensitive silane coupling agent comprising a 1,2-naphthoquinone-2-diazido-5-sulfonyl group or a 1,2-naphthoquinone-2-diazido-4-sulfonyl. group.
    Type: Application
    Filed: February 14, 2007
    Publication date: September 20, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Toshiki Ito, Natsuhiko Mizutani, Takako Yamaguchi, Yasuhisa Inao
  • Publication number: 20070218373
    Abstract: Provided is a photosensitive silane coupling agent for forming a low-defect microparticle pattern, dot array pattern, or hole array pattern with a smaller number of process steps, and a method of forming a pattern using such photosensitive silane coupling agent. Used is a photosensitive silane coupling agent having a secondary amino group protected by an o-nitrobenzyloxycarbonyl group.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 20, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiki Ito, Natsuhiko Mizutani, Takako Yamaguchi, Yasuhisa Inao
  • Publication number: 20070141483
    Abstract: A near-field photoresist for formation of a fine pattern with by near-field exposure includes an alkali-soluble novalac resin, a diazyde-type photosensitizer which is photoreactive by near-field exposure, a photoacid generator which generates acid by the near-field exposure, and a solvent.
    Type: Application
    Filed: February 7, 2007
    Publication date: June 21, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takako Yamaguchi, Ryo Kuroda
  • Publication number: 20070123232
    Abstract: A communication terminal having one or more one-touch-dial buttons simplifies operations needed for registration of destination data such as phone numbers or mail addresses. A communication terminal (e.g., a cellular phone) having one or more one-touch-dial buttons includes a destination-data registration unit (e.g., a phone-directory database) that allows destination data such as phone numbers or mail addresses to be registered therein, a one-touch-dial registration unit that allows destination data to be registered therein so as to be associated with the one or more one-touch-dial buttons, and a control unit that, in response to an operation of the one or more one-touch-dial buttons, determines whether destination data has been registered in the one-touch-dial registration unit or the destination-data registration unit, and that outputs a result of the determination and a query message regarding registration of the destination data.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 31, 2007
    Applicant: Fujitsu Limited
    Inventors: Toshikazu Houmura, Kazuhiro Yoshihara, Takako Yamaguchi, Kazuma Nagaoka
  • Publication number: 20070123233
    Abstract: A communication terminal having one or more one-touch-dial buttons simplifies operations needed for registration of destination data such as phone numbers or mail addresses. A communication terminal (e.g., a cellular phone) having one or more one-touch-dial buttons includes a destination-data registration unit (e.g., a phone-directory database) that allows destination data such as phone numbers or mail addresses to be registered therein, a one-touch-dial registration unit that allows destination data to be registered therein so as to be associated with the one or more one-touch-dial buttons, and a control unit that, in response to an operation of the one or more one-touch-dial buttons, determines whether destination data has been registered in the one-touch-dial registration unit or the destination-data registration unit, and that outputs a result of the determination and a query message regarding registration of the destination data.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 31, 2007
    Applicant: Fujitsu Limited
    Inventors: Toshikazu Houmura, Kazuhiro Yoshihara, Takako Yamaguchi, Kazuma Nagaoka