Patents by Inventor Takahiro Kamakura

Takahiro Kamakura 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).

  • Sulfonic acid derivative, photoacid generator using same, resist composition, and device manufacturing method
    Patent number: 10216084
    Abstract: A sulfonic acid derivative, wherein the sulfonic acid derivative is represented by the following general formula (1): R1COOCH2CH2CFHCF2SO3?M+??(1) where: R1 represents a monovalent organic group having carbon number of 1 to 200, having at least one hydroxyl group and optionally having a substituent other than the hydroxyl group; and M+ represents a counter cation.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: February 26, 2019
    Assignee: Toyo Gosei Co., Ltd.
    Inventors: Yoshiyuki Utsumi, Noriaki Kobayashi, Takahiro Kamakura
  • SULFONIC ACID DERIVATIVE, PHOTOACID GENERATOR USING SAME, RESIST COMPOSITION, AND DEVICE MANUFACTURING METHOD
    Publication number: 20180011401
    Abstract: A sulfonic acid derivative, wherein the sulfonic acid derivative is represented by the following general formula (1): R1COOCH2CH2CFHCF2SO3?M+??(1) where: R1 represents a monovalent organic group having carbon number of 1 to 200, having at least one hydroxyl group and optionally having a substituent other than the hydroxyl group; and M+ represents a counter cation.
    Type: Application
    Filed: November 26, 2015
    Publication date: January 11, 2018
    Applicant: TOYO GOSEI CO., LTD.
    Inventors: Yoshiyuki Utsumi, Noriaki Kobayashi, Takahiro Kamakura
  • Manufacturing method of camera module
    Patent number: 7414799
    Abstract: A lens holder, which supports a light receiving lens, is screwed into a barrel portion of a body holder by respectively engaging hooks, which are provided in a screwing piece, with engaging-grooves formed in an end surface of the lens holder and then rotating the screwing piece. The screwing position of the lens holder is controlled so that the rotational direction position of a set of the engaging grooves is coincided with a reference position of an adjusting piece. Subsequently, the adjusting piece is engaged with the lens holder at the reference position. Then, a focus adjustment is performed by rotating the lens holder in a positive rotation direction.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: August 19, 2008
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventors: Masakuni Tokida, Takahiro Kamakura
  • Manufacturing method of camera module
    Publication number: 20060132935
    Abstract: A lens holder, which supports a light receiving lens, is screwed into a barrel portion of a body holder by respectively engaging hooks, which are provided in a screwing piece, with engaging-grooves formed in an end surface of the lens holder and then rotating the screwing piece. The screwing position of the lens holder is controlled so that the rotational direction position of a set of the engaging grooves is coincided with a reference position of an adjusting piece. Subsequently, the adjusting piece is engaged with the lens holder at the reference position. Then, a focus adjustment is performed by rotating the lens holder in a positive rotation direction.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 22, 2006
    Applicant: Shinko Electric Industries Co., Ltd.
    Inventors: Masakuni Tokida, Takahiro Kamakura