公开(公告)号：US11371886B2

公开(公告)日：2022-06-28

申请号：US17464389

申请日：2021-09-01

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yoshihiko Ogino ,  Yoichi Kajimura ,  Takahiro Sahara ,  Kunio Taguchi ,  Yasushi Sasagawa ,  Hitoshi Mizuno ,  Shota Mitani

IPC: G01J3/52 ,  G02B21/34 ,  G02B5/20 ,  G01J3/02 ,  G01N21/27 ,  G09B19/00

Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.

公开(公告)号：US11635329B2

公开(公告)日：2023-04-25

申请号：US17726804

申请日：2022-04-22

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yoshihiko Ogino ,  Yoichi Kajimura ,  Takahiro Sahara ,  Kunio Taguchi ,  Yasushi Sasagawa ,  Hitoshi Mizuno ,  Shota Mitani

IPC: G01J3/52 ,  G02B5/20 ,  G01N21/27 ,  G09B19/00 ,  G02B21/34 ,  G01J3/02

Abstract: A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.

公开(公告)号：US12130182B2

公开(公告)日：2024-10-29

申请号：US17768606

申请日：2020-10-12

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Akihiro Maeda ,  Yoshihiko Ogino ,  Yoichi Kajimura

IPC: G01J3/52

CPC classification number: G01J3/526 ,  G01J3/524

Abstract: A transmission type color gradation chart comprising: a color chart member including at least one color bar wherein transmitted light exhibits chromatic color; and a gray gradation chart member wherein transmitted light exhibits achromatic color, and includes a plurality of transmission regions with different brightness, wherein the color chart member and the gray gradation chart member are stacked so that there is a duplicative transmission region wherein the color bar and the plurality of transmission regions overlap in planar view.

公开(公告)号：US12048415B2

公开(公告)日：2024-07-30

申请号：US17430127

申请日：2020-02-14

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yoshihiko Ogino ,  Tohru Sugiyama ,  Yusuke Murayama ,  Kiyoko Tateishi ,  Akihiro Maeda ,  Yoichi Kajimura ,  Yutaka Matsumoto

IPC: A61B1/00 ,  A61B1/04 ,  A61B1/05 ,  G06T7/00

CPC classification number: A61B1/000094 ,  A61B1/000095 ,  A61B1/00045 ,  A61B1/042 ,  A61B1/05 ,  G06T7/0012 ,  G06T2207/10024 ,  G06T2207/10068

Abstract: A color conversion section for an imaging device carries out conversion to imaging data imaged by each medical imaging device for eliminating differences in color property of each imaging device, and generates standard color graphic data. To this standard color graphic data, a color conversion section for highlighting a specific tissue carries out color conversion for highlighting a designated specific biotissue, such as a blood vessel, to generate specific tissue highlighted graphic data. To this specific tissue highlighted graphic data, a color conversion section for a monitor carries out conversion for eliminating differences in color property of each monitor to generate display data. Color monitors display graphics based on this display data.

公开(公告)号：US11340115B2

公开(公告)日：2022-05-24

申请号：US16084205

申请日：2017-03-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yoshihiko Ogino ,  Yoichi Kajimura ,  Takahiro Sahara ,  Kunio Taguchi ,  Yasushi Sasagawa ,  Hitoshi Mizuno ,  Shota Mitani

IPC: G01J3/52 ,  G02B21/34 ,  G02B5/20 ,  G01J3/02 ,  G01N21/27

Abstract: A transmission type color calibration chart comprises a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.