专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH04242750A YELLOW TONER 失效
公开(公告)号：JPH04242750A
公开(公告)日：1992-08-31
申请号：JP41745690
申请日：1990-12-28
申请人： KONISHIROKU PHOTO IND
发明人： NAKANO SHOICHI , KOBAYASHI YOSHIAKI , KANEKO TADASHI , OGAWA KEIKO
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09
摘要： PURPOSE:To improve offset resistance by dispersing and containing a polyolefin wax and a specified yellow pigment in a specified polyester resin. CONSTITUTION:A polyester resin which is the constituting resin of yellow toner is obtained by condensing and polymerizing at least a diol component represented by the formula and an acid component consisting of a mixture of a divalent carboxylic acid and 5 mole % or more of a carboxylic acid having trivalency or more to the whole acid component, and its softening point ranges from 110 deg.C to 150 deg.C. In this polyester resin, a polyolefin wax and a yellow pigment obtained by treating at least 10wt.% or more of rhodium or a rhodium derivative to the pigment are dispersed and contained.

2. 发明专利

JPH0450864A PRODUCTION OF TONER 失效
公开(公告)号：JPH0450864A
公开(公告)日：1992-02-19
申请号：JP15532690
申请日：1990-06-15
申请人： KONISHIROKU PHOTO IND
发明人： KOBAYASHI YOSHIAKI , KASUYA RYUHEI , KANEKO TADASHI , TANAKA MAYUMI
IPC分类号： G03G9/087
摘要： PURPOSE:To suppress the generation of the flocs of pigments and to obviate the generation of fogging and toner splashing over a long period of time by adding powder having the average grain size in a specific range as a toner material to the toner. CONSTITUTION:The toner components contg. a binder resin and the pigments are mechanically mixed and the mixture is melted, kneaded, ground and classified. The resin is incorporated into the toner components and the powder of 2 to 15mum volume average grain size is added thereto and is mechanically mixed together with the toner components in the stage for mechanically mixing the components. Therefore, the specific powder suppresses the flocculation of the pigments and separates the once generated flocs of the pigments. Good images are stably formed many times without entailing the fogging and the toner splashing in this way.

3. 发明专利

JPH0369111B2 失效
公开(公告)号：JPH0369111B2
公开(公告)日：1991-10-30
申请号：JP10454983
申请日：1983-06-10
申请人： KONISHIROKU PHOTO IND
发明人： KANEKO TADASHI , NOMORI HIROYUKI , KUZUMI KENICHI
IPC分类号： G03G9/08 , G03G13/08 , G03G15/08

4. 发明专利

JPH03185461A YELLOW TONER 失效
公开(公告)号：JPH03185461A
公开(公告)日：1991-08-13
申请号：JP32391389
申请日：1989-12-15
申请人： KONISHIROKU PHOTO IND
发明人： KASUYA RYUHEI , NAKANO SHOICHI , KOBAYASHI YOSHIAKI , KANEKO TADASHI
IPC分类号： G03G9/087 , G03G9/09
摘要： PURPOSE:To enhance the offset resistance, wrap resistance and fixability of the toner contg. a prescribed yellow pigment by incorporating prescribed polyester and a metal complex of a hydroxynaphthoic acid system into the toner. CONSTITUTION:This toner is formed by incorporating the yellow pigment having P denotes the central metal ion of + p valency; Z denotes H, ammonium, etc. The more specific example of the formula is exemplified by the compd. of formula II, etc.

5. 发明专利

JPH02153364A MULTICOLOR IMAGE FORMING METHOD 失效
公开(公告)号：JPH02153364A
公开(公告)日：1990-06-13
申请号：JP30690788
申请日：1988-12-06
申请人： KONISHIROKU PHOTO IND
发明人： KOBAYASHI YOSHIAKI , KANEKO TADASHI
IPC分类号： G03G9/09 , G03G13/01 , G03G15/01
摘要： PURPOSE:To improve the transferability of a blue toner image by using the blue toner produced by a specific method and forming the blue toner image in the developing stage before the final developing stage. CONSTITUTION:The multicolor toner images including the blue toner image (A) are formed by repeating, plural times, the stage for developing electrostatic latent images by using developers contg. toners and carriers and thereafter, these toner images are simultaneously transferred to a transfer material to form the multicolor images. The image A is formed in the developing stage before the final developing stage (e.g. stage for forming the black toner image). The blue toner constituting the image A is used after a toner material contg. a copper phthalocyanine pigment is mixed with the toner and the mixture is kneaded while the above-mentioned toner material is substantially not thermally melted, then the mixture is ground to adjust the existence ratio of the blue pigment flocs having >=80mum sectional area to pieces/mm .

6. 发明专利

JPH01112256A DEVELOPING METHOD 失效
公开(公告)号：JPH01112256A
公开(公告)日：1989-04-28
申请号：JP17818288
申请日：1988-07-19
申请人： KONISHIROKU PHOTO IND
发明人： YAMAMOTO YOKO , SHIRASE AKIZO , KANEKO TADASHI
IPC分类号： G03G13/09 , G03G9/08 , G03G13/06 , G03G13/08 , G03G15/08
摘要： PURPOSE:To uniformize the action of a vibrational electric field to toner particles and to form a good image by regulating a fraction of toner particles having a particle diameter range of 1/1.7-1.7 times the weight average particle diameter to >=95wt.% of the total toner particles. CONSTITUTION:An electrostatic latent image formed on an latent image bearing body 70 is developed by forming the thin layer of a binary developer 50, conveying this layer to a developing region 60 in a state of not contacting with the body 70, and exerting the action of the vibrational electric field on the developer 50 layer. The toner particles to be used as the constituted of the developer 50 has a fraction of their particles having a particle diameter range of 1/1.7-1.7 times the weight average particle diameter D50 amounting up to >=95wt.% of the total toner particles, thus permitting the action of the vibrational electric field on the toner particles to be made uniform, so-called selective development and toner scattering not to occur, and good images to be formed.

7. 发明专利

JPS647658B2 失效
公开(公告)号：JPS647658B2
公开(公告)日：1989-02-09
申请号：JP15871979
申请日：1979-12-08
申请人： KONISHIROKU PHOTO IND
发明人： KANEKO TADASHI , MORIGUCHI HIROYUKI , NOMORI HIROYUKI
IPC分类号： G03G15/09 , G03G5/04 , G03G5/08 , G03G5/14 , G03G5/147

8. 发明专利

JPS6424280A DEVELOPING METHOD 失效
公开(公告)号：JPS6424280A
公开(公告)日：1989-01-26
申请号：JP18012887
申请日：1987-07-21
申请人： KONISHIROKU PHOTO IND
发明人： YAMAMOTO YOKO , KANEKO TADASHI
IPC分类号： G03G15/06 , G03G13/08
摘要： PURPOSE:To perform developing for a large number of times repeatedly, by performing the developing by specifying developing efficiency. CONSTITUTION:A developer layer consisting of a two component group developer including toner particle powder and carrier particle powder is formed on a developer carrier supporting body so that the developing efficiency (eta) shown in equation I can exceed 0.40. And an electrostatic latent image on a latent image supporting body is developed under a vibrating electric field by supplying the developing layer so as not to be brought into contact with the latent image supporting body to a developing area where the developer carrier supporting body is confronted with the latent image supporting body. In the equation I, (m) represents a toner sticking quantity (mg/cm ) on the electrostatic latent image, and also, a primary sticking quantity. And it is possible to set the developing efficiency (eta) at a value exceeding 0.40 by controlling a supplying toner quantity mg/cm T to the developing area actually. In such a way, it is possible to suppress the generation of selective developing, and to perform the developing the superior developing for a large number of times repeatedly.

9. 发明专利

JPS63314562A DEVELOPING METHOD 失效
公开(公告)号：JPS63314562A
公开(公告)日：1988-12-22
申请号：JP15234587
申请日：1987-06-17
申请人： KONISHIROKU PHOTO IND
发明人： KANEKO TADASHI , MATSUO SHUNJI
IPC分类号： G03G13/09
摘要： PURPOSE:To prevent the generation of carrier splashing, sticking and fogging by specifying the grain size of the carrier particles in a two-component developer used for non-contact development and the intensity of the magnetization thereof. CONSTITUTION:The two-component developer 4 consisting of a carrier and toner is conveyed to a developing region K by a sleeve 2 turning around a magnet body 3 and the electrostatic latent image on an image carrier 1 is developed without contact under the oscillating electric field in the developing region K. The carrier is coated with the particles of the magnetic material by using an insulating material. The average grain size R (mum) of the carrier and the intensity M (emu/cm ) of the magnetization measured within 1,000 oersted magnetic field satisfy equation I and the magnetic angle between the adjacent magnetic poles of the magnet body 3 in the developing region K is

10. 发明专利

JPS6341866A DEVELOPING METHOD FOR ELECTROSTATIC LATENT IMAGE 失效
公开(公告)号：JPS6341866A
公开(公告)日：1988-02-23
申请号：JP18421286
申请日：1986-08-07
申请人： KONISHIROKU PHOTO IND
发明人： ARAI MITSUTAKA , IKEUCHI SATORU , KANEKO TADASHI , OKUYAMA TAKEKI , MATSUBARA AKITOSHI , YAMAMOTO YOKO
IPC分类号： G03G15/08 , G03G13/08
摘要： PURPOSE:To permit good development without entailing the contamination in device by splashing of toners and carriers and without generating fogging by forming a developer layer to be formed on a developer conveying body as a thin layer and using the specific carrier. CONSTITUTION:The developer layer to be formed on the developer conveying body is formed as the thin layer, and the resin-coated carrier formed by coating a resin having >=HB pencil hardness on magnetic material particles is used as the carrier. The durability of the carrier is remarkably improved as the coating layer of the carrier is hard. The good developing process is executable even when the carrier is repeatedly used for many times. Since the coating layer of the carrier is hard, the tendency to the retardation of the frictional chargeability of the carrier by sticking of the toner particle to the carrier surface is decreased. The frictional charge between the carrier and toner is satisfactorily executed even if the carrier is repeatedly used many times. The generation of the weakly charged toner is thereby considerably decreased and the generation of toner and carrier splashing is prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式