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1. 发明专利

JPH0524511B2 失效
公开(公告)号：JPH0524511B2
公开(公告)日：1993-04-08
申请号：JP26647690
申请日：1990-10-05
申请人： KONISHIROKU PHOTO IND
发明人： SHIRASE AKIZO , TAKAHASHI JIRO , KUZUMI KENICHI , MATSUBARA AKITOSHI , TAMAKI KYOSHI
IPC分类号： G03G9/087

2. 发明专利

JPH0363749B2 失效
公开(公告)号：JPH0363749B2
公开(公告)日：1991-10-02
申请号：JP19780782
申请日：1982-11-12
申请人： KONISHIROKU PHOTO IND
发明人： TAKAHASHI JIRO , SHIRASE AKIZO , KUZUMI KENICHI , MATSUBARA AKITOSHI , TAMAKI KYOSHI
IPC分类号： G03G9/087

3. 发明专利

JPH03135578A TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE FOR FIXING WITH HOT ROLLER 失效
公开(公告)号：JPH03135578A
公开(公告)日：1991-06-10
申请号：JP26647690
申请日：1990-10-05
申请人： KONISHIROKU PHOTO IND
发明人： SHIRASE AKIZO , TAKAHASHI JIRO , KUZUMI KENICHI , MATSUBARA AKITOSHI , TAMAKI KIYOSHI
IPC分类号： G03G9/087
摘要： PURPOSE:To prevent rear side staining phenomenon by incorporating cross- linkable unsatd. polyester resin having C-C double bonds as a binder and a specified amt. of org. peroxides taking part in a cross-linking reaction with the unsatd. polyester resin under heating as a cross-linking agent. CONSTITUTION:Resin contg. cross-linkable unsatd. polyester resin having C-C double bonds and undergoing cross-linking by the action of a cross-linking agent when heated with a hot roller is used as the binder of a toner and org. peroxides causing the cross-linking of the unsatd. polyester resin as an unreacted cross-linking agent are incorporated into the binder by 0.5-20 wt.% of the amt. of the unsatd. polyester resin. A colorant is further incorporated and additives are dispersed as required. Satisfactory fixing can be carried out and rear side staining phenomenon is prevented.

4. 发明专利

JPH0132980B2 失效
公开(公告)号：JPH0132980B2
公开(公告)日：1989-07-11
申请号：JP14905482
申请日：1982-08-30
申请人： KONISHIROKU PHOTO IND
发明人： SATO KEIJI , YAMADA HIROYUKI , KUZUMI KENICHI
IPC分类号： G03G9/10 , G03G9/107 , G03G9/113

5. 发明专利

JPH0119582B2 失效
公开(公告)号：JPH0119582B2
公开(公告)日：1989-04-12
申请号：JP1473182
申请日：1982-02-03
申请人： KONISHIROKU PHOTO IND
发明人： KUZUMI KENICHI , SATO KEIJI , KASUYA RYUHEI , ITO KUNIO , WADA TSUNEO
IPC分类号： G03G9/08 , G03G9/087

6. 发明专利

JPS60102647A MAGNETIC TONER HAVING INSULATING CHARACTERISTIC 失效
公开(公告)号：JPS60102647A
公开(公告)日：1985-06-06
申请号：JP20988183
申请日：1983-11-10
申请人： KONISHIROKU PHOTO IND
发明人： OKUYAMA TAKEKI , KUZUMI KENICHI , TSUJITA KENJI , BAN TSUYAKO
IPC分类号： G03G9/083 , G03G9/08
摘要： PURPOSE:To improve image density and sharpness and to enable decrease in softening point by forming a magnetic material of iron or iron alloy of which the coercive force and the intensity of saturation magnetization have respectively specific values. CONSTITUTION:Pulverous powder of a magnetic material consisting of iron or iron alloy having the magnetic characteristic that the coercive force thereof is =150 /g is used. Such powder is dispersed together with a coloring material and other additives to be added according to need into a particulate material of a binder resin, thereby manufacturing a magnetic toner having an insulating characterisic. The electrical conductivity of such toner is made of 10 OMEGA/cm. Since the magnetic material has the specific magnetic characteristic as mentioned above, the visible image having high image density and high sharpness is formed with the large amt. of the toner to be stuck per unit area of the image part when the toner is used for development. The toner having a low softening point is obtainable and therefore the fixing of the toner image is adequately and satisfactorily accomplished.

7. 发明专利

JPS59220747A MAGNETIC TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE 失效
公开(公告)号：JPS59220747A
公开(公告)日：1984-12-12
申请号：JP9498483
申请日：1983-05-31
申请人： KONISHIROKU PHOTO IND
发明人： OKUYAMA TAKEKI , KUZUMI KENICHI , TSUJITA KENJI , BAN TSUYAKO
IPC分类号： G03G9/08 , G03G9/083
摘要： PURPOSE:To obtain the titled toner low in softening point by incorporating a fine magnetic powder having specified magnetic characteristics. CONSTITUTION:A magnetic toner is obtained by using a fine magnetic powder having magnetic characteristics; a coervice force of =150emu/g in a magnetically saturated state, and dispersing it into the particles of a binder resin together with a colorant and additives. As the magnetic material, iron, or alloys composed essentially of iron, contg. an element, as the other component, such as C, P, B, Al, Mo, or W. It is dispersed into the binder resin in the form of fine powder having 0.1-1mum average particle diameter.

8. 发明专利

JPS59220746A MAGNETIC TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE 失效
公开(公告)号：JPS59220746A
公开(公告)日：1984-12-12
申请号：JP9498383
申请日：1983-05-31
申请人： KONISHIROKU PHOTO IND
发明人： TSUJITA KENJI , KUZUMI KENICHI , OKUYAMA TAKEKI , BAN TSUYAKO
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087
摘要： PURPOSE:To obtain a magnetic toner fixable with pressure in a wide temp. range by using 2 kinds of resins different in mol.wt. at the peak from each other for the binder of a magnetic toner. CONSTITUTION:A mixture of a high mol.wt. polymer (A) and a low mol.wt. polymer (B) is used for the binder of a pressure mixable toner, and a fine magnetic powder, such as iron or cobalt, is dispersed into this resin to form particles, and further, fine electrically conductive particles, such as electrically conductive carbon black or aluminum, are attached to the surfaces of these particles to obtain a magnetic toner for developing an electrostatic charge image. Thermoplastic resins, such as polystyrene, polyvinyltoluene, styrene-butadiene copolymer, having a peak mol.wt. of 80-500 thousand and 1-50 thousand are used for (A) and (B), respectively.

9. 发明专利

JPS5948368B2 JPS5948368B2 - 失效
公开(公告)号：JPS5948368B2
公开(公告)日：1984-11-26
申请号：JP7041580
申请日：1980-05-26
申请人： Konishiroku Photo Ind
发明人： ISHII FUMIO , KUZUMI KENICHI , UCHIDA TAKU
IPC分类号： G03C1/00 , G03C8/04
CPC分类号： G03C8/04

10. 发明专利

JPS59155868A Developer 失效
标题翻译：开发商
公开(公告)号：JPS59155868A
公开(公告)日：1984-09-05
申请号：JP3035683
申请日：1983-02-24
申请人： Konishiroku Photo Ind Co Ltd
发明人： OKUYAMA TAKEKI , KUZUMI KENICHI , TSUJITA KENJI , BAN TSUYAKO
IPC分类号： G03G15/09 , G03G13/09
CPC分类号： G03G13/09
摘要： PURPOSE:To improve both a carrying property and a developing property by setting a rectangular ratio in a magnetization curve of a magnetic powder to a specified range. CONSTITUTION:A rectangular ratio in a magnetization curve of a magnetic powder contained in a developer is set to a range of 0.01-0.30. In this state, it is preferable to mix and use plural kinds of magnetic powders whose rectangular ratio is different in a range of this rectangular ratio, and also it is preferable to mix and use said magnetic powder whose rectangular ratio is in a range of 0.01-0.10, and that which is in a range of 0.10-0.30. In case the rectangular ratio is large, the carrying property is good, and when the rectangular ratio is in a small range of 0.01-0.10, the developing property is good. Accordingly, as for the magnetic powder whose rectangular ratio is in a range of 0.01-0.30, both the developing property and the carrying property are good, a height of a tuft surface of a developing tuft is averaged, a contact rate to an image carrying surface of a soft developing tuft surface is raised, and an excellent picture is obtained.
摘要翻译：目的：通过将磁粉的磁化曲线的矩形比设定在规定的范围来提高携带性和显影性。构成：将包含在显影剂中的磁性粉末的磁化曲线的矩形比设定为0.01-0.30的范围。在这种状态下，优选混合使用矩形比在该矩形比的范围内不同的多种磁粉，并且优选混合使用矩形比在0.01的范围内的所述磁性粉末 -0.10，在0.10-0.30的范围内。在矩形比大的情况下，承载性良好，当矩形比在0.01-0.10的小范围内时，显影性良好。因此，对于矩形比在0.01-0.30的范围内的磁粉，显影性和承载性都良好，显影簇的簇表面的高度平均，与载带的图像的接触率提高柔软的显影毛簇表面的表面，得到优异的图像。

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