公开(公告)号：USH1196H

公开(公告)日：1993-06-01

申请号：US628566

申请日：1990-12-17

申请人： Fumie Fukazawa ,  Katuya Yabuuchi ,  Hirofumi Ohtani

发明人： Fumie Fukazawa ,  Katuya Yabuuchi ,  Hirofumi Ohtani

IPC分类号： G03C7/20 ,  G03C7/30

CPC分类号： G03C7/3041

摘要： A silver halide color photographic light-sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, whereina maximum sensitivity wavelength .lambda..sub.R of a spectral sensitivity distribution of said red-sensitive silver halide emulsion layer is in a range of 595 nm.ltoreq..lambda..sub.R .ltoreq.625 nm;a maximum sensitivity wavelength .lambda..sub.G of a spectral sensitivity distribution of said green-sensitive silver halide emulsion layer is in a range of 530 nm.ltoreq..lambda..sub.G .ltoreq.560 nm; anda sensitivity of said green-sensitive silver halide emulsion layer at 500 nm is not less than one-fourth of the sensitivity at the maximum sensitivity wavelength .lambda..sub.G.

公开(公告)号：US5180657A

公开(公告)日：1993-01-19

申请号：US629598

申请日：1990-12-18

申请人： Fumie Fukazawa ,  Yasushi Irie ,  Hiroshi Shimazaki ,  Katuya Yabuuchi ,  Satoru Shimba

发明人： Fumie Fukazawa ,  Yasushi Irie ,  Hiroshi Shimazaki ,  Katuya Yabuuchi ,  Satoru Shimba

IPC分类号： G03C7/30

CPC分类号： G03C7/3041

摘要： A silver halide color photographic light-sensitive material which offers high chroma and excellent hue reproduction comprises a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein the maximum sensitivity wavelength .lambda..sub.B of a spectral sensitivity distribution of said blue-sensitive silver halide emulsion layer is in the range of 410 nm.ltoreq..lambda..sub.B .ltoreq.470 nm; and the sensitivity of said blue-sensitive silver halide emulsion layer at 480 nm is not more than half of the sensitivity at said wavelength .lambda..sub.B. Preferably, the maximum sensitivity wavelength .lambda..sub.G of said green-sensitive layer is in the range of 530 nm.ltoreq..lambda..sub.G .ltoreq.560 nm and the sensitivity of said green-sensitive layer at the wavelength of 500 nm is not less than one-fourth of the sensitivity at SG.sub.max ; the maximum sensitivity wavelength .lambda..sub.R of said red-sensitive layer is in the range of 595 nm.ltoreq..lambda..sub.R .ltoreq.625 nm and the maximum sensitivity of red-sensitive layer in the range of 400 nm to 480 nm is not less than 1.5% of the sensitivity of blue-sensitive layer at .lambda..sub.B.

公开(公告)号：US5206124A

公开(公告)日：1993-04-27

申请号：US832934

申请日：1992-02-11

申请人： Hiroshi Shimazaki ,  Yasushi Irie ,  Katuya Yabuuchi

发明人： Hiroshi Shimazaki ,  Yasushi Irie ,  Katuya Yabuuchi

IPC分类号： G03C7/20 ,  G03C7/30 ,  G03C7/392

CPC分类号： G03C7/3041 ,  Y10S430/158

摘要： A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material is excellent in reproducibility of blue-green or green colored photographic subject. The light-sensitive material has a blue-sensitive layer, green-sensitive layer and a red-sensitive layer. The blue-sensitive layer has the maximum spectral sensitivity at a wavelength within the range of 415 to 470 nm and the spectral sensitivity at 480 nm of the blue-sensitive layer is not more than 35% of the maximum sensitivity. The green-sensitive layer has the maximum spectral sensitivity at a wavelength within the range of 530 nm to 560 nm and the spectral sensitivity at 500 nm of the green-sensitive layer is not less than 25% of the maximum sensitivity.

公开(公告)号：USH1243H

公开(公告)日：1993-10-05

申请号：US848381

申请日：1992-03-09

申请人： Satoru Shimba ,  Keisuke Tobita ,  Kenji Michiue ,  Katuya Yabuuchi

发明人： Satoru Shimba ,  Keisuke Tobita ,  Kenji Michiue ,  Katuya Yabuuchi

IPC分类号： G03C1/035 ,  G03C1/16 ,  G03C7/20 ,  G03C7/30 ,  G03C1/08

CPC分类号： G03C7/3022 ,  G03C7/3041

摘要： A silver halide color photoqraphic light-sensitive material having an excellent graininess, sharpness and color reproducibility, particularly of green colors including yellowish qreen and bluish qreen is disclosed. Among silver halide emulsion layers, the blue-sensitive layer is located furthest from a support and the outside thereof, has a non-light-sensitive layer. And the optical specifications of these two layers are as specified in the claims.

公开(公告)号：US4994351A

公开(公告)日：1991-02-19

申请号：US366217

申请日：1989-06-15

申请人： Yoshihiro Haga ,  Katuya Yabuuchi ,  Yasumasa Numata

发明人： Yoshihiro Haga ,  Katuya Yabuuchi ,  Yasumasa Numata

IPC分类号： G03C7/30 ,  G03C7/38

CPC分类号： G03C7/3825

摘要： A silver halide color photographic material is described which is to be processed by a scheme including at least the step of development with a color developer having a pH of at least 11 wherein said material contains a specific pyrazoloazole based magenta coupler and a compound that react with the oxidized product of a color developing agent and which substantially lacks the ability to impart an image density. The color photographic material is improved in granularity and color reproduction and yet permits efficient desilvering.