Patents by Inventor Kouichi Hirasawa

Kouichi Hirasawa 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: 6874961
    Abstract: A method of printing an image on a printing portion of a printing paper using a printer so as to eliminate visible margins. The sheet of printing paper is conveyed within the printer by nipping margins of the sheet. After printing, the printing portion is detached from the printing paper along a cut line. Namely, a print having no margins and no nip markings is formed. Therefore, cutting position controlling mechanisms and paper cutting mechanisms as used in conventional printers are not necessary, and the structure of the printer is thereby made simple. Accordingly, since margins can be eliminated by using a simple structure, photographic printers and the like in particular are made compact and inexpensive.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: April 5, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kouichi Hirasawa
  • Patent number: 6788323
    Abstract: Illumination adjustment of LEDs is carried out prior to printing to a color thermosensitive recording paper with each thermosensitive coloring layer of yellow, magenta, and cyan. A light control circuit lights on the LEDs by one line printing period upon printing to each thermosensitive coloring layer, and makes CCD line sensors use its reflected light to image lateral edge of the color thermosensitive recording paper. Consequently, the output signal from the CCD line sensors is set within the linearity.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: September 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Enomoto, Kouichi Hirasawa
  • Patent number: 6737136
    Abstract: There are provided a printing paper and a printer for eliminating margins of photographs and the like by using a simple structure. After printing processing has been carried out on a sheet of a printing material, the sheet is detached from the printing material along a cut line. Namely, a print having no margins is formed. Therefore, cutting position controlling mechanisms and paper cutting mechanisms as used in conventional printers are not necessary, and the structure of the printer is thereby made simple. Accordingly, since margins can be eliminated by using a simple structure, photographic printers and the like in particular are made compact and inexpensive.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: May 18, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kouichi Hirasawa
  • Patent number: 6727932
    Abstract: A lateral edge of a color thermosensitive recording paper in the main scan direction is detected. An edge heating element closest to the lateral edge is specified. The distance W between the edge heating element and the lateral edge of the color thermosensitive recording paper is detected. The proportion of the distance W to the width Wt of the heating element is calculated. Recording density of the edge heating element is lowered according to the proportion. The boundary between the edge of the recording paper and the print image is blurred.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: April 27, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Enomoto, Kouichi Hirasawa
  • Publication number: 20030227535
    Abstract: A lateral edge of a color thermosensitive recording paper in the main scan direction is detected. An edge heating element closest to the lateral edge is specified. The distance W between the edge heating element and the lateral edge of the color thermosensitive recording paper is detected. The proportion of the distance W to the width Wt of the heating element is calculated. Recording density of the edge heating element is lowered according to the proportion. The boundary between the edge of the recording paper and the print image is blurred.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 11, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hisashi Enomoto, Kouichi Hirasawa
  • Publication number: 20030227534
    Abstract: Illumination adjustment of LEDs is carried out prior to printing to a color thermosensitive recording paper with each thermosensitive coloring layer of yellow, magenta, and cyan. A light control circuit lights on the LEDs by one line printing period upon printing to each thermosensitive coloring layer, and makes CCD line sensors use its reflected light to image lateral edge of the color thermosensitive recording paper. Consequently, the output signal from the CCD line sensors is set within the linearity.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 11, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hisashi Enomoto, Kouichi Hirasawa
  • Publication number: 20030152729
    Abstract: There are provided a printing paper and a printer for eliminating margins of photographs and the like by using a simple structure.
    Type: Application
    Filed: April 12, 2000
    Publication date: August 14, 2003
    Inventor: Kouichi Hirasawa
  • Publication number: 20020086128
    Abstract: There are provided a printing paper and a printer for eliminating margins of photographs and the like by using a simple structure.
    Type: Application
    Filed: February 14, 2002
    Publication date: July 4, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Kouichi Hirasawa