Patents by Inventor Teruji Ikematsu

Teruji Ikematsu 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).

  • Method for controlling exposure and scan-exposure apparatus
    Patent number: 6839077
    Abstract: The present invention relates to a method for controlling exposure and a scan-exposure apparatus, which are used when a photosensitive material is scan-exposed. In the present invention, distance between a light source and a recording medium can be controlled on the basis of pre-measured distance correction data and timing at which light is emitted from the light source can be controlled on the basis of pre-measured light-emission correction data. Accordingly, it becomes possible to prevent the light beam irradiates the recording medium from going out of focus and to reduce the amount by which the position irradiated with the light beam deviates from a preset standard position.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: January 4, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Teruji Ikematsu
  • Method of and apparatus for recording image by exposure to light beams
    Patent number: 6744491
    Abstract: For dividing an image and recording divided images on a photosensitive film with a plurality of laser beams, an auxiliary scanning speed is reduced in the vicinity of junctions between adjacent ones of the divided images to adjust the intervals between main scanning lines, and each of the main scanning lines is divided into divided main scanning lines in a main scanning direction, and the divided main scanning lines are formed separately in an auxiliary scanning direction. With such a correcting process, a high-quality image free of striped artifacts and inclination differences of main scanning lines can be recorded on the photosensitive film.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: June 1, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayuki Uemura, Ichirou Miyagawa, Takao Ozaki, Atsushi Suganuma, Teruji Ikematsu
  • Method of and apparatus for recording image by exposure to light beams
    Publication number: 20030214641
    Abstract: For dividing an image and recording divided images on a photosensitive film with a plurality of laser beams, an auxiliary scanning speed is reduced in the vicinity of junctions between adjacent ones of the divided images to adjust the intervals between main scanning lines, and each of the main scanning lines is divided into divided main scanning lines in a main scanning direction, and the divided main scanning lines are formed separately in an auxiliary scanning direction. With such a correcting process, a high-quality image free of striped artifacts and inclination differences of main scanning lines can be recorded on the photosensitive film.
    Type: Application
    Filed: June 10, 2003
    Publication date: November 20, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takayuki Uemura, Ichirou Miyagawa, Takao Ozaki, Atsushi Suganuma, Teruji Ikematsu
  • Method of and apparatus for recording image by exposure to light beams
    Patent number: 6624877
    Abstract: For dividing an image and recording divided images on a photosensitive film with a plurality of laser beams, an auxiliary scanning speed is reduced in the vicinity of junctions between adjacent ones of the divided images to adjust the intervals between main scanning lines, and each of the main scanning lines is divided into divided main scanning lines in a main scanning direction, and the divided main scanning lines are formed separately in an auxiliary scanning direction. With such a correcting process, a high-quality image free of striped artifacts and inclination differences of main scanning lines can be recorded on the photosensitive film.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: September 23, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayuki Uemura, Ichirou Miyagawa, Takao Ozaki, Atsushi Suganuma, Teruji Ikematsu
  • Method for controlling exposure and scan-exposure apparatus
    Publication number: 20020018111
    Abstract: The present invention relates to a method for controlling exposure and a scan-exposure apparatus, which are used when a photosensitive material is scan-exposed. In the present invention, distance between a light source and a recording medium can be controlled on the basis of pre-measured distance correction data and timing at which light is emitted from the light source can be controlled on the basis of pre-measured light-emission correction data. Accordingly, it becomes possible to prevent the light beam irradiates the recording medium from going out of focus and to reduce the amount by which the position irradiated with the light beam deviates from a preset standard position.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 14, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Teruji Ikematsu
  • Method of and apparatus for recording image by exposure to light beams
    Publication number: 20010050760
    Abstract: For dividing an image and recording divided images on a photosensitive film with a plurality of laser beams, an auxiliary scanning speed is reduced in the vicinity of junctions between adjacent ones of the divided images to adjust the intervals between main scanning lines, and each of the main scanning lines is divided into divided main scanning lines in a main scanning direction, and the divided main scanning lines are formed separately in an auxiliary scanning direction. With such a correcting process, a high-quality image free of striped artifacts and inclination differences of main scanning lines can be recorded on the photosensitive film.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 13, 2001
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takayuki Uemura, Ichirou Miyagawa, Takao Ozaki, Atsushi Suganuma, Teruji Ikematsu