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1. 发明专利

JPH0621925B2 失效
公开(公告)号：JPH0621925B2
公开(公告)日：1994-03-23
申请号：JP1495985
申请日：1985-01-29
申请人： FUJI PHOTO FILM CO LTD
发明人： TAKAHASHI TOSHIRO , HIRANO SHIGEO
IPC分类号： G03C1/06 , G03C1/09 , G03C1/295

2. 发明专利

JPH0511299B2 失效
公开(公告)号：JPH0511299B2
公开(公告)日：1993-02-15
申请号：JP3678884
申请日：1984-02-28
申请人： FUJI PHOTO FILM CO LTD
发明人： KAMEOKA KIMITAKA , INOE NOBUAKI , INAGAKI YOSHIO , KOBAYASHI HIDETOSHI , TAKAHASHI TOSHIRO
IPC分类号： C07D249/12 , C07D257/04 , G03C1/06 , G03C1/34

3. 发明专利

JPH02308156A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH02308156A
公开(公告)日：1990-12-21
申请号：JP12922689
申请日：1989-05-23
申请人： FUJI PHOTO FILM CO LTD
发明人： TAKAHASHI TOSHIRO , YAGIHARA MORIO
IPC分类号： G03C1/06 , G03C1/10 , G03C1/40 , G03C1/42 , G03C5/29
摘要： PURPOSE:To reduce light source dependency and to improve image quality related to grain elongation and contraction by incorporating at least one kind of dye having its absorption max. in a specified wavelength range and at least one kind of redox compd. capable of releasing a development inhibitor when oxidized. CONSTITUTION:At least one kind of dye having its absorption max. in the wavelength range of 300-420 nm and at least one kind of redox compd. capable of releasing a development inhibitor when oxidized are incorporated. The absorption max.(lambdamax)of a spectral sensitizing dyestuff used is limited to the range of 450-580 nm. At the time of 580 nm, safety to deep-red safelight is deteriorated and handleability is also deteriorated. Light source dependency is reduced and image quality related to grain elongation and contraction is improved.

4. 发明专利

JPH02216138A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH02216138A
公开(公告)日：1990-08-29
申请号：JP3771089
申请日：1989-02-17
申请人： FUJI PHOTO FILM CO LTD
发明人： ISHIGAKI KUNIO , TAKAHASHI TOSHIRO
IPC分类号： G03C1/06 , G03C1/32
摘要： PURPOSE:To reduce pressure fog due to contact friction between the surface of the photosensitive material and a backing face by adding a matting agent containing a prescribed amount or more of particles of a prescribed diameter or more to the backing layer. CONSTITUTION:This photosensitive material has one or more photosensitive layers composed of silver halide emulsion spectrally sensitized to >=600nm wavelengths and contains a hydrazine derivative, such as a compound of formula I, in this layer or another hydrophilic colloidal layer, and the backing layer contains the matting agent, such as SiO2, containing particles of >=5mum diameter in an amount of >=30 volume % of total particles. It is preferred to add a polyhydroxybenzene compound, such as a compound of formula II to this photosensitive layer or the other hydrophilic colloidal layer, and a sliding agent and/or a colloidal silica to the outermost layer of the photosensitive layers.

5. 发明专利

JPH0256543A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH0256543A
公开(公告)日：1990-02-26
申请号：JP10782489
申请日：1989-04-28
申请人： FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI HIDETOSHI , TAKAHASHI TOSHIRO , HIRANO SHIGEO , HIROSE TAKESHI , ADACHI KEIICHI
IPC分类号： G03C1/295 , G03C1/42 , G03C7/305
摘要： PURPOSE:To obtain the photosensitive material having high sensitivity and good graininess by incorporating a specific compd. into at least one layer. CONSTITUTION:This photosensitive material contains the compd. expressed by formula I. In formula, A denotes a residual group after one hydrogen atom is removed from the active position of the compd. which can make coupling reaction with the oxidant of an arom. primary amine developing agent and denotes more specifically a residual group of a cyan coupler, magenta coupler, yellow coupler or colorless coupler; B denotes a residual group which is eliminated by the coupling reaction to render a fogging effect and has a residual group of the compd. having the partial structure expressed by formula II. In formula, R1, R2 denote a hydrogen atom, alkyl group, aryl group or acyl group. The image quality and more particularly graininess are improved in this way.

6. 发明专利

JPS63205653A COLOR RECORDING MATERIAL AND COLOR IMAGE FORMING METHOD 失效
公开(公告)号：JPS63205653A
公开(公告)日：1988-08-25
申请号：JP3779787
申请日：1987-02-23
申请人： FUJI PHOTO FILM CO LTD
发明人： SHIBA KEISUKE , TAKAHASHI TOSHIRO , INOUE AKIYUKI
IPC分类号： G03C7/26 , G03C7/30
摘要： PURPOSE:To improve image quality such as hue, image sharpness and edge sharpness and to provide a variety of tones by incorprating a high contrasting agent or high contrasting agent precursor which can form a color image having >=3 max. gamma value by color development into the titled material. CONSTITUTION:The color recording material constituted by forming a photosensitive layer contg. a photosensitive silver halide emulsion and color couplers on a base contains the high contrasting agent or high contrasting agent precursor which can form the color image having >=3 max. gamma value by the color development. The term 'gamma' refers to the gradient of a characteristic curve expressed by the logarithm of the color filter density of the respective colored images obtd. by the color development of the color recording material and exposure. A hard copy which has the excellent image quality such as hue, image sharpness and edge sharpness and has a variety of tones is thereby obtd. from the original constituted of the images consisting of line images and dots.

7. 发明专利

JPS6323533B2 失效
公开(公告)号：JPS6323533B2
公开(公告)日：1988-05-17
申请号：JP3605181
申请日：1981-03-13
申请人： FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI HIDETOSHI , TAKAHASHI TOSHIRO , HIRANO SHIGEO , HIROSE TAKESHI , ADACHI KEIICHI
IPC分类号： G03C7/00 , C07C65/24 , C07D231/44 , C07D231/52 , C07D249/10 , C07D249/18 , C07D257/04 , C07D487/04 , C09B29/00 , G03C7/26 , G03C7/305 , G03C7/32 , G03C8/00

8. 发明专利

JP2522644B2 失效
公开(公告)号：JP2522644B2
公开(公告)日：1996-08-07
申请号：JP571586
申请日：1986-01-14
申请人： FUJI PHOTO FILM CO LTD
发明人： KUWABARA KENICHI , TAKAHASHI TOSHIRO , ADACHI KEIICHI , OKADA MASAHIRO
IPC分类号： G03C1/06 , G03C1/035 , G03C1/16 , G03C1/36 , G03C1/83

9. 发明专利

JP2510852B2 失效
公开(公告)号：JP2510852B2
公开(公告)日：1996-06-26
申请号：JP20625885
申请日：1985-09-20
申请人： FUJI PHOTO FILM CO LTD
发明人： TAKAHASHI TOSHIRO , KUWABARA KENICHI , OKADA MASAHIRO
IPC分类号： G03C1/005 , G03C1/035 , G03C1/06 , G03C1/10

10. 发明专利

JPH0434545A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH0434545A
公开(公告)日：1992-02-05
申请号：JP14263690
申请日：1990-05-31
申请人： FUJI PHOTO FILM CO LTD
发明人： TAKAHASHI TOSHIRO
IPC分类号： G03C1/06 , G03C1/12
摘要： PURPOSE:To provide the above photosensitive material which is high in contrast, is high in actual Dmax and sensitivity and forms less black dots by forming silver halide photographic emulsion layers on a base and incorporating specific compds. and specific hydrazine derivatives respectively into the silver halide emulsion layers or other hydrophilic colloidal layers. CONSTITUTION:This photosensitive material has at least one layer of the silver halide emulsion layers on the base and contains respectively >=1 kinds of the compds. expressed by formula I and the hydrazine derivatives expressed by formula II or formula III in the silver halide emulsion layer or other hydrophilic colloidal layers. In the formula I, R1, R2 may be respectively the same or different and denote a sulfo group or alkyl group having a carboxyl group; R denotes a hydrogen atom, benzyl group, etc.; Z1, Z2 respectively denote the atom group necessary for forming a 5- or 6-membered nitrogenous heterocycle; at least one of Z1 and Z2 is a thiazole nucleus, selenazole nucleus, quinoline nucleus. A denotes univalent cation; m and n respectively denote 1 or 2. The high sensitivity, the ultra-high contrast and the high actual Dmax are obtd. in this way.

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