-
公开(公告)号：JPH02242265A
公开(公告)日：1990-09-26
申请号：JP6477689
申请日：1989-03-15
Applicant: CANON KK
Inventor： KOYAMA TAKASHI , ANAYAMA HIDEKI , HASHIMOTO YUICHI
IPC: G03G5/14
Abstract: PURPOSE:To stabilize potential characteristics in any environment ranging from low temp. and humidity to high temp. and humidity by forming an intermediate layer of polyether polyamide resin. CONSTITUTION:When a photosensitive layer is formed on an electrically conductive support with an intermediate layer in-between to obtain a sensitive body, the intermediate layer is made of polyether polyamide resin (A). A (co)polymer of one or more kinds of monomers selected among polyether diamine, polyether dicarboxylic acid (ester) and polyether dicarboxylic acid chloride is preferably used as the component A. A compd. represented by the formula may be used as the component A and other resin and additives may be added to the component A as required.
-
公开(公告)号：JPH0287156A
公开(公告)日：1990-03-28
申请号：JP23944588
申请日：1988-09-22
Applicant: CANON KK
Inventor： KOYAMA TAKASHI , HASHIMOTO YUICHI
IPC: G03G5/14
Abstract: PURPOSE:To obtain potential characteristics and superior images stabilized in all the environmental conditions from low temperature and low humidity to high temperature and high humidity by adding a small amount of salts to a resin interlayer. CONSTITUTION:The interlayer contains a resin component and at least one kind of salt selected from inorganic salts and organic salts additives in an amount of 1 - 800ppm per the resin comonent. Since the salts are more affinitive to a solvent than the resin, they gather in high concentration near the surface of the interlayer as the solvent migrates to the surface of the interlayer at the time of drying after coating, thus permitting injectability of carriers from a photosensitive layers formed on the interlayer at the interface between both layer, rise of potential in the light and that of residual potential under low temperature and low humidity to be prevented, and drop of potential in the dark under high temperature and high humidity to be also avoided, and environmental stability to be enhanced.
-
公开(公告)号：JPH01185635A
公开(公告)日：1989-07-25
申请号：JP1018288
申请日：1988-01-20
Applicant: CANON KK
Inventor： HASHIMOTO YUICHI
IPC: G03G5/06
Abstract: PURPOSE:To obtain high sensitivity in the entire spectral region and to decrease the potential fluctuations associated with durability so that characteristics are stabilized by laminating plural charge generating layers having specific conditions between a conductive base and charge generating layer of an electrophotographing sensitive body. CONSTITUTION:The charge generating layers 2 and 3 and the charge transfer layer 4 are laminated in this order on the conductive base 1. The holes of the light carriers generated by the charge generating layers are injected in the direction of the layer 4 and the electrons in the direction of the base 1. Since the work function of the joined generating layer, i.e., the layer 3, is smaller by 0.3eV than that of the layer 2, the acceptance and transfer of the holes and electrons are smoothly executed. The high-sensitivity elec trophotographic characteristics are obtd. in the region from short to long wave lengths and the excellent characteristics of the decreased potential fluctuations such as the increase of the residual potential and the increase of the bright part potential associated with the durability are obtd. by laminating the layers having the different spectral sensities under said conditions.
-
公开(公告)号：JPS6456453A
公开(公告)日：1989-03-03
申请号：JP12700688
申请日：1988-05-26
Applicant: CANON KK
Inventor： MARUYAMA AKIO , SAKAKIBARA TEIGO , HASHIMOTO YUICHI
Abstract: PURPOSE:To obtain an image without the fault of the image by setting an electric potential just after primary electrification is performed, a time from electrification to development and the electric potential at which the concentration of toner development becomes a half value in a specified relation. CONSTITUTION:Concerning the electric potential and the process condition of a laminating type photosensitive body using a layer, on which an organic photo semiconductor pigment is dispersively applied as a solvent or as a solvent and a polymer binder, as a charge generation layer Vd, t, and VH are set within a range expressed in a formula I, supposing that the surface potential of the photosensitive body just after the electrification is performed by a primary electrostatic charger is Vd(V), the time from the primary electrification to the toner development is t(sec) and the surface potential of the photosensitive body at which the concentration of the toner development becomes the half value of that of saturation is VH(V). In case of bias exposure (image exposure which is executed even to the white part of a back), however, Vd is set as the electric potential just after the image exposure and (t) is set as the time from the image exposure to the toner development. Now, 500
-
公开(公告)号：JPS6423260A
公开(公告)日：1989-01-25
申请号：JP17966887
申请日：1987-07-17
Applicant: CANON KK
Inventor： TANAKA HISAMI , OKUNUKI MASAMI , HASHIMOTO YUICHI
IPC: G03G5/06
Abstract: PURPOSE:To obtain a printing plate having high sensitivity and providing distinct picture image contg. no stain in the non-image part by providing a layer contg. a specified azo dye and an alkali-soluble resin as primary components on an electroconductive base body. CONSTITUTION:A layer contg. an azo dye expressed by the general formula I and an alkali-soluble resin as primary components is formed on an electroconductive base body. When a sensitized layer of its non-image part is removed after executing electrification, image exposure, toner development, and fixing, a printing plate having high sensitivity and providing a distinct picture contg. no stain in the non-image part is obtd. In the formula, R is an alkyl, aralkyl, aryl, or silyl group, each may have a substituent; each Ar1 and Ar2 is an arylene or heterocyclic group, each may have a substituent; A is a coupler residue having a phenolic OH group.
-
Patent Agency Ranking
公开(公告)号：JPS63250657A
公开(公告)日：1988-10-18
申请号：JP8526887
申请日：1987-04-07
Applicant: CANON KK
Inventor： HASHIMOTO YUICHI , TAKAI HIDEYUKI , MARUYAMA AKIO , SAKAKIBARA TEIGO
Abstract: PURPOSE:To improve injection of carriers from an electric charge generating layer to a charge transfer layer and to enhance printing resistance by rendering the work function of the charge generating layer higher than that of the charge transfer layer and the difference of them a specified value or more. CONSTITUTION:The electrophotographic sensitive body is prepared by laminating a photosensitive layer composed of the charge generating layer and the charge transfer layer on a conductive supporting body, and the work function of the charge generating layer is made higher than that of the charge transfer layer and the difference of them is regulated to >=0.2eV. The work function of the charge generating layer is regulated by combining a charge generating material, such as azo pigments, with a binder, such as a vinylbutyral resin, and the work function of the charge transfer layer containing the charge transfer material, such as hydrazone derivatives, is allowed to match that of the generating layer, thus permitting rise of potential in the light to be lessened by specifying the work functions of the generating layer and the transfer layer, consequently, durability of a high-speed copying machine to be enhanced, and superior characteristics to be obtained.
-
公开(公告)号：JP2000315577A
公开(公告)日：2000-11-14
申请号：JP12265299
申请日：1999-04-28
Applicant: CANON KK
Inventor： UENO KAZUNORI , SENOO AKIHIRO , MASHITA SEIJI , HASHIMOTO YUICHI
Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element having high-luminance and long- life light output by including a metal complex compound in at least one layer among organic compound-containing layers clamped between a pair of electrodes consisting of a positive electrode and a negative electrode. SOLUTION: A metal complex compound uses a compound represented by formula I as a ligand. The coordinate metal is selected from Li, Na, K, Be, Mg, Ca, Ru, Zn, Al, Cd, Si, Ge, Sn, Eu, desirably. In the formula, each of R1-R5 represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, a nitro group, an amino group, a carbonyl group, an ether group, or a nitryl group, and two of the groups may form a fused ring. For example, a metal complex represented by formula II or the like is available. According to a vacuum deposition method or a solution applying method, an organic layer containing the metal complex compound is formed between a positive electrode and a negative electrode in an organic light emitting element. A thickness of the organic layer is thinly set below 2 μm, desirably. An inexpensive element with a large area can be provided.
-
公开(公告)号：JP2000133064A
公开(公告)日：2000-05-12
申请号：JP31988198
申请日：1998-10-23
Applicant: CANON KK
Inventor： HASHIMOTO YUICHI , SENOO AKIHIRO , UENO KAZUNORI , MASHITA SEIJI
Abstract: PROBLEM TO BE SOLVED: To provide a high luminance element by imparting power in a specific range to an ITO film surface when the surface is modified by irradiating, on the ITO film, cations generated by an inert gas in a specific energy range. SOLUTION: In this surface treatment method, dirt in the surface region can be removed and a function (a charge injecting property) as an electrode of an organic light emitting element can be improved without causing the increase of the surface resistance of an ITO film by irradiating particles of which cation energy is 20-100 eV, desirably 30-60 eV with power of at least 10 mW/cm2 to 1 W/cm2 on the surface region within 5 nm in the depth direction of the ITO film. A surface treatment device is composed of a discharge lamp 2 composed by winding a high-frequency coil 3 around a quartz tube 4 in a chamber 1 and a substrate holder 6 to hold a substrate (ITO substrate) having the ITO film to be surface-treated. The holder 6 is connected to an ammeter 7 and a D.C. power source 8.
-
公开(公告)号：JPH11345687A
公开(公告)日：1999-12-14
申请号：JP16770098
申请日：1998-06-01
Applicant: CANON KK
Inventor： MASHITA SEIJI , SENOO AKIHIRO , HASHIMOTO YUICHI , UENO KAZUNORI
Abstract: PROBLEM TO BE SOLVED: To provide a luminescent element giving no damage to an organic film when producing the element, having high luminescence efficiency and a long element life. SOLUTION: In a luminescent element having at least an anode 3, an organic layer 8 and a cathode 6 on a transparent insulating board 1a, a phthalocyanine layer 2 is provided between the organic layer 8 and the cathode 6. In this phthalocyanine layer 2, central metal comprises alkali metal or metal phthalocyanine of alkali earth metal, and in addition, the alkali metal is preferably lithium, sodium or potassium, and the alkali earth metal is preferably magnesium or calcium.
-
公开(公告)号：JPH11202505A
公开(公告)日：1999-07-30
申请号：JP544598
申请日：1998-01-14
Applicant: CANON KK
Inventor： NAGAO YAYOI , HASHIMOTO YUICHI , NISHIDA SHUNICHIRO , SUZUKI KOICHI , KASHIZAKI YOSHIROU
Abstract: PROBLEM TO BE SOLVED: To facilitate the control of induction point and γ as well as to ensure good avalanche phenomenon and to form a high resolution image particularly in a device for processing an image by a digital system. SOLUTION: The electrophotographic photoreceptor has two electric charge generating layers on the electrically conductive substrate. The LUMO level (LCGL-1 ) and HOMO level (HCGL-1 ) of an electric charge generating material contained in the electric charge generating layer on the substrate side and the LUMO level (LCGL-2 ) and HOMO level (HCGL-2 ) of an electric charge generating material contained in the upper electric charge generating layer satisfy at least conditions of the equations (LCGL-1 )-(LCGL-2 )>=0.1 eV and (HCGL-1 )-(HCGL-2 )>=0.1 eV.
-
-
-
-
-
-
-
-
-
Search Results
180
records
(took 0.028 seconds)
