-
1.发明公开
公开(公告)号：EP1413929A4
公开(公告)日：2005-03-16
申请号：EP02733239
申请日：2002-05-29
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA MUNENORI , SUZUKI TAKAHIRO , MACHIDA KUNIO
CPC classification number: G03G15/751 , G03G5/10 , Y10T428/1352
Abstract: A base for a photosensitive drum composed of a resin composition attached to a high-speed image forming apparatus has a structure in which a gear is attached to one end of the base body through a flange part of 0.1 to 5 mm in thickness. The base is integrally molded by injection molding, and therefore the gear is not deformed when released from the mold. As a result, a photosensitive drum produced from the base has a good rotation precision and a good drive transmission and enables formation of high-quality image.
-
公开(公告)号：DE69833402T2
公开(公告)日：2006-07-13
申请号：DE69833402
申请日：1998-11-04
Applicant: BRIDGESTONE CORP , SEIKO EPSON CORP
Inventor： NISHIMURO YOUICHI , MACHIDA KUNIO , MIYAZAWA HISASHI , SUZUKI KAZUNAGA
Abstract: There is disclosed a multi-color injection molded disc-shaped ink tank valve for an ink jet printer, said valve comprising a plastics substrate in form of a ring-like outer portion (1) and an elastic material layer in form of a disc-like inner portion (2) that are integrally composited, wherein the thickness of the elastic inner portion (2) is less than the diameter of the ink tank valve and less than the thickness of the outer ring-like portion (1). The ink tank valve is shaped thus that the length in height direction is smaller than that in planar direction.
-
公开(公告)号：DE69725535T2
公开(公告)日：2004-08-05
申请号：DE69725535
申请日：1997-11-05
Applicant: BRIDGESTONE CORP
Inventor： ISHIKAWA HIKARU , MACHIDA KUNIO
Abstract: A method of manufacturing optical-use plastic products such as various kinds of lenses including a magnifying lens, finder spectacle lens, contact lens, condenser lens; infrared ray projector, radiation thermometer, interferometer, scanner, etc. The method of manufacturing optical-use plastic products comprises a step A for injecting a melted resin into a mold cavity to produce a primary molding: and a step B for injecting a same resin as in the step A to a part or whole of the primary molding to form a molding in which the injected resin is melt-welded to the primary molding.
-
公开(公告)号：AU2002361104A1
公开(公告)日：2004-07-29
申请号：AU2002361104
申请日：2002-12-26
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA MUNENORI , SUZUKI TAKAHIRO , MACHIDA KUNIO
Abstract: An electrically conductive thermoplastic resin composition to which an electrically conductive agent is added, characterized in that a base resin for the resin composition contains a polyester resin. A resinous base-body for a photosensitive drum made of the above-mentioned electrically conductive resin composition and used in electrostatic recording processes including electro-photographic processes and the like. A photosensitive drum which is made up of the above-mentioned base-body and a photosensitive layer formed thereon. An electrically conductive resin composition which keeps a higher dimensional stability particularly under conditions of high temperature and high humidity without degrading mechanical strength, workability, etc., a base-body for a photosensitive drum using the resin composition, and a photosensitive drum using the base-body become obtainable.
-
公开(公告)号：DE60029237D1
公开(公告)日：2006-08-17
申请号：DE60029237
申请日：2000-12-27
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA MUNENORI , MACHIDA KUNIO
Abstract: Disclosed herein are a mixed resin compound, a resin pipe, a process for producing said resin pipe, and a photosensitive drum. The resin compound meets at least one of the following requirements. It is a mixture of two or more kinds of resins blended in a specific manner, it undergoes annealing under specific conditions, and it has specific values of surface roughness, Vickers hardness, coefficient of linear expansion, flexural modulus, and thermal conductivity. The resin pipe is suitable for use as the cylindrical base of the photosensitive drum for electrophotographic machines, such as copying machines, facsimiles, and printers. It is superior in surface smoothness, dimensional stability, coatability, and handlability, and hence it is very little vulnerable to damage during handling and dimensional change due to resin shrinkage and is superior in heat resistance (desirable for solvent removal) and mechanical strength (desirable for flange fitting).
-
Patent Agency Ranking
公开(公告)号：DE60018695D1
公开(公告)日：2005-04-21
申请号：DE60018695
申请日：2000-12-27
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA MUNENORI , MACHIDA KUNIO
Abstract: Disclosed herein are a mixed resin compound, a resin pipe, a process for producing said resin pipe, and a photosensitive drum. The resin compound meets at least one of the following requirements. It is a mixture of two or more kinds of resins blended in a specific manner, it undergoes annealing under specific conditions, and it has specific values of surface roughness, Vickers hardness, coefficient of linear expansion, flexural modulus, and thermal conductivity. The resin pipe is suitable for use as the cylindrical base of the photosensitive drum for electrophotographic machines, such as copying machines, facsimiles, and printers. It is superior in surface smoothness, dimensional stability, coatability, and handlability, and hence it is very little vulnerable to damage during handling and dimensional change due to resin shrinkage and is superior in heat resistance (desirable for solvent removal) and mechanical strength (desirable for flange fitting).
-
公开(公告)号：DE60005112T2
公开(公告)日：2004-03-25
申请号：DE60005112
申请日：2000-09-29
Applicant: BRIDGESTONE CORP
Inventor： TOYOSAWA SHINICHI , NISHIMURO YOUICHI , MASHITA NARUHIKO , MACHIDA KUNIO
Abstract: There are disclosed a resin composition (I ) which comprises 100 parts by weight of (a1) a styrenic thermoplastic elastomer composed of a block copolymer (styrene-ethylene/butylene-styrene block copolymer, styrene-ethylene/propylene-styrene block copolymer) , 3 to 50 parts by weight of (b1) an ethylene/(meth)acrylic acid copolymer or an ethylene/(meth)acrylic ester copolymer each having 5 to 45% by weight of (meth)acrylic acid content, and 50 to 170 parts by weight of (c1) a paraffin base oil; a resin composition (II ) which comprises 100 parts by weight of (a2) a styrenic thermoplastic elastomer composed of a block copolymer, 1 to 15 parts by weight of (b2) a maleic anhydride-grafted polyolefin, and 30 to 170 parts by weight of (c2) a paraffin base oil; a gasket material (I ) composed of the components (a1) , (b1) and (c1) ; a gasket material (II ) composed of the components (a2), (b2) and (c2) ; and a gasketed cover in which a gasket made of the gasket material (I ) or (II ) is integrally fitted to a cover body made of a metal by injection molding.
-
公开(公告)号：DE4129733A1
公开(公告)日：1992-03-12
申请号：DE4129733
申请日：1991-09-06
Applicant: BRIDGESTONE CORP
Inventor： NISHIMURO YOUICHI , KOYAMA HARUO , MACHIDA KUNIO , FUKAHORI YOSHIHIDE
Abstract: The invention relates to a plastic wheel comprising two or more components connected to each other. The wheel sections are moulded separately e.g. by injection moulding fibre reinforced thermoplastic pellets. Each connected area has a moulded thread, allowing the components to be screwed into each other. Joints are finally secured by bonding, welding or mechanical means. USE/ADVANTAGE - The plastic wheel can replace steel automotive wheels, has improved dimensional accuracy, good properties, is light and can be mass produced.
-
公开(公告)号：DE60029237T2
公开(公告)日：2007-06-14
申请号：DE60029237
申请日：2000-12-27
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA MUNENORI , MACHIDA KUNIO
Abstract: Disclosed herein are a mixed resin compound, a resin pipe, a process for producing said resin pipe, and a photosensitive drum. The resin compound meets at least one of the following requirements. It is a mixture of two or more kinds of resins blended in a specific manner, it undergoes annealing under specific conditions, and it has specific values of surface roughness, Vickers hardness, coefficient of linear expansion, flexural modulus, and thermal conductivity. The resin pipe is suitable for use as the cylindrical base of the photosensitive drum for electrophotographic machines, such as copying machines, facsimiles, and printers. It is superior in surface smoothness, dimensional stability, coatability, and handlability, and hence it is very little vulnerable to damage during handling and dimensional change due to resin shrinkage and is superior in heat resistance (desirable for solvent removal) and mechanical strength (desirable for flange fitting).
-
公开(公告)号：DE60032400T2
公开(公告)日：2007-04-19
申请号：DE60032400
申请日：2000-02-17
Applicant: BRIDGESTONE CORP
Inventor： TOYOSAWA SHINICHI , NISHIMURO YOUICHI , MACHIDA KUNIO , SHIMIZU TAKASHI , MASHITA NARUHIKO , FUKUDA YASUNORI , ARAI JUN , IMAI YASUSHI , UTSUNOMIYA TADASHI
Abstract: There are disclosed a thermoplastic elastomer composition which comprises (a) a hydrogenated block copolymer obtained by hydrogenating the block copolymer comprising at least one polymer block composed principally of a vinylic aromatic compound and at least one polymer block composed principally of a conjugated diene compound; (b) a non-aromatic base softening agent having a kinematic viscosity at 40 DEG C of at least 100 mm /sec; and (c) propylene homopolymer and/or propylene copolymer comprising propylene as a principal component which is obtained through polymerization by using a metallocene catalyst, which is free from a lubricant, which has been heat treated, or which has a MFR (melt flow rate) in a specific range; a gasket material which comprises the above thermoplastic elastomer composition and is particularly suited for use in hard disc units because of its excellent sealing properties and its capability of preventing gas generation; a method for injection molding the above composition; an external anti-sticking agent for a thermoplastic elastomer or rubber which comprises fine particulates of ultrahigh molecular weight polyethylene having an average particle diameter in a specific range, and which is minimized in hygroscopicity, oil absorptivity and volatility, and has high heat resistance and anti-stickiness; and rubber and/or a thermoplastic elastomer which is incorporated with the above external anti-sticking agent and imparted with anti-stickiness.
-
-
-
-
-
-
-
-
-
Search Results
249
records
(took 0.021 seconds)
