-
公开(公告)号：JPH07297027A
公开(公告)日：1995-11-10
申请号：JP8202894
申请日：1994-04-20
Applicant: BRIDGESTONE CORP
Inventor： KIJIMA SHIGERU , OFUKU EIJI , KAWAGOE TAKAHIRO
Abstract: PURPOSE:To provide a magnet roller formed integrally with a molding resin magnet, which has a large peak magnetic force differential though the angle between its adjacent different poles is small. CONSTITUTION:A magnet roller 1 formed of a molding resin is constituted into a structure, wherein a recessed groove is formed in the longitudinal direction of the surface of the roller 1 and a previously magnetized magnet 2 is fitted in the groove in such way as to have an opposite polarity to the polarity in the vicinity of a recessed part formed in a main body magnet.
-
公开(公告)号：JPH07181823A
公开(公告)日：1995-07-21
申请号：JP32664893
申请日：1993-12-24
Applicant: BRIDGESTONE CORP
Inventor： MIYAZAKI TADAAKI , IWAMI KOICHI , KIJIMA SHIGERU
Abstract: PURPOSE:To realize a stable power feeding system excellent in a heat generation, releasability and durability, with reduced power consumption by installing a slidable conductive member in a heating roll having a specific heat generating film and fixing the image of an object on a transfer material. CONSTITUTION:The heating roll 2 has the heat generation film 3 obtained in such a manner that an insulation film 2 is coated with an inorganic coating liquid having dispersed conductive powder or a silicone varnish liquid, then, dried and printed. And, as the slidable conductive member, a ball bearing is used and the internal ring of a radial bearing 6 is force-fitted/fixed into the part of a copper plate 5 wound on the heat generating film 3 of the heating roll 2 and the external ring is fixed on a main body side to freely rotate the heating roll 2. Simultaneously, in a method for supplying power from the external fixing ring, the image of the object is fixed on the transfer material in such a manner that an unfixed transfer material passes between the heating roll 2 and a press-contact roll 7. Thus, the power feeding system excellent in the heat generation, the releasability and the durability with the reduced power consumption and a short heating-up time can be provided.
-
公开(公告)号：JPH04285634A
公开(公告)日：1992-10-09
申请号：JP7460091
申请日：1991-03-14
Applicant: BRIDGESTONE CORP
Inventor： TAKAGI MITSUHARU , KIJIMA SHIGERU , OGAWA MASAO , OGINO TAKAO , MAEDA HIROKO , KAWAGOE TAKAHIRO
Abstract: PURPOSE:To produce the subject substance in a high efficiency without generating any concentration polarization, by performing an electrolytical polymerization in a flowed polymerization solution, when the conductive polymer is polymerization-deposited on electrodes. CONSTITUTION:A polymerization electrode 1 and a counter-electrode 2 are immersed in an electrolytical polymerization solution 5 containing a polymerizable monomer such as aniline, and an electric current is applied between both the electrodes. The electrolytical polymerization solution is flowed and, simultaneously, a conductive polymeric substance such as polypyrrole electrochemically polymerized is deposited on the electrode 1. While the produced conductive polymeric substance is peeled from the polymerization electrode 1 to float in the electrolytical polymerization solution 5, the electrolytic polymerization is performed, and the conductive polymeric substance dispersed in the electrolytic polymerization solution 5 is recovered.
-
公开(公告)号：JPH0218423A
公开(公告)日：1990-01-22
申请号：JP16814588
申请日：1988-07-06
Applicant: BRIDGESTONE CORP
Inventor： TOYOSAWA SHINICHI , MAEDA HIROKO , OFUKU EIJI , KAWAGOE TAKAHIRO , KITA TOSHIO , KIJIMA SHIGERU , TAKAGI MITSUHARU
Abstract: PURPOSE:To obtain the subject high-quality material, excellent in film-forming properties and having homogeneous weight and thickness distribution in a short time by controlling a current value in electrolytic polymerization versus time. CONSTITUTION:(A) A monomer for electrolytic polymerization, such as aniline or pyrrole, is dissolved in (B) an organic solvent, such as acetonitrile, and (D) a salt, such as LiBF4, is added to provide an electrolytic polymerization solution, which is then placed in an electrolytic cell. (E) A polymerization electrode (e.g. platinum) and a counter electrode (e.g. gold) are dipped therein to afford preferably 50muA/cm to 3mA/cm current density in the initial stage of the polymerization and then increase the current density at 0.1-1mA/cm per sec. The above-mentioned monomer is finally reacted preferably at 10-120mA/cm current density to afford the objective high polymer material.
-
公开(公告)号：JPH01279916A
公开(公告)日：1989-11-10
申请号：JP10921088
申请日：1988-05-06
Applicant: BRIDGESTONE CORP
Inventor： KIJIMA SHIGERU , KITA TOSHIO , TAKAGI MITSUHARU , KAWAGOE TAKAHIRO , TOYOSAWA SHINICHI , MAEDA HIROKO , OFUKU EIJI
Abstract: PURPOSE:To deposit uniformly an org. polymer material on a polymn. electrode by clamping the polymn. electrode by using a supply electrode connected to an electric source and an elastic supporting member and carrying out electrolytic polymn. when the org. polymer material is deposited on the polymn. electrode by electrolytic polymn. CONSTITUTION:A polymn. electrode 6 and a counter electrode 9 are placed in an electrolytic bath 1 and the polymn. electrode 6 is clamped by means of a supply electrode 8 connected to an electric source 12 and an elastic supporting member 4 (e.g., a rubber material). An electrolytic polymn. liq. 2 is fed in the electrolytic bath 1 and an org. polymer film (e.g., polyaniline sheet) is deposited and formed on the polymn. electrode 6 by electrolytic polymn. The contact between the supply electrode 8 and the polymn. electrode 6 can be thereby surely uniformized by the elasticity of the elastic supporting member 4 and therefore the fluctuation of the electric voltage on the surface of the polymn. electrode 6 caused by the fluctuation of contact resistance between the supply electrode 8 and the polymn. electrode 6 can be reduced and an org. polymer material can be, thus uniformly deposited on the polymn. electrode 6.
-
Patent Agency Ranking
公开(公告)号：JP2000169824A
公开(公告)日：2000-06-20
申请号：JP34617098
申请日：1998-12-04
Applicant: BRIDGESTONE CORP
Inventor： ASADA FUMIO , KIJIMA SHIGERU , TAKANO NOBUKAZU
IPC: C08L9/00 , C09J201/00
Abstract: PROBLEM TO BE SOLVED: To obtain an adhesive rubber composition for heat-resistant belts useful as an adhesive rubber for endlessly processing the high temperature heat-resistant conveyer belts, contriving the improvement in adhesive performance and heat resistance under high temperature, and capable of preventing the fatigue of the joined portions of the belts during operation by adding a polymer having a prescribed Mooney viscosity or higher as a main component. SOLUTION: This adhesive rubber composition for heat-resistant belts contains a polymer (preferably an ethylene-propylene copolymer-based rubber) having a Mooney viscosity (MV) of >=43 at 100 deg.C as a main component. The composition preferably further contains a polymer (preferably an ethylene- propylene copolymer-based liquid polymer) having a viscosity-average mol.wt. of >=3,000 as a tackifier in an amount of 20-100 pts.wt. per 100 pts.wt. of the rubber component. The composition preferably further contains zinc methacrylate as a cocrosslinking agent in an amount of 1-3 pts.wt. per 100 pts.wt. of the rubber component polymer. The conveyer belts using the composition is useful for carrying high temperature materials.
-
公开(公告)号：JP2000169633A
公开(公告)日：2000-06-20
申请号：JP34616898
申请日：1998-12-04
Applicant: BRIDGESTONE CORP
Inventor： ASADA FUMIO , KIJIMA SHIGERU , TAKANO NOBUKAZU
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition excellent in slipperiness of the surface of the cure rubber therefrom and therefore capable of preventing the respective surfaces of the cured rubbers therefrom from mutually blocking by incorporating a rubber composition with crystalline polyethylene powder. SOLUTION: This composition is obtained by incorporating (A) a rubber component with (B) 2-50 pts.wt., based on 100 pts.wt. of the component A, of crystalline polyethylene powder pref. 500-2,000 in molecular weight with narrow molecular weight distribution, and (C) as necessary, a flexibilizer, a reinforcing agent such as carbon black or silica, a filler, a processing auxiliary, an antioxidant, a curing promoter, etc.; wherein the component A is e.g. natural rubber, a diene rubber such as styrene-butadiene rubber, polybutadiene rubber or polyisoprene rubber, chloroprene rubber, butyl rubber, chlorinated polyethylene; and the component B which has high linearity with no branched structure consists of an aliphatic hydrocarbon with low compatibility with various polymers, in particular at room temperature.
-
公开(公告)号：JPH09146362A
公开(公告)日：1997-06-06
申请号：JP30318995
申请日：1995-11-21
Applicant: BRIDGESTONE CORP
Inventor： TAMURA HAJIME , KIJIMA SHIGERU
Abstract: PROBLEM TO BE SOLVED: To prevent the degradation in image density and a sleeve ghost by forming a film formed by compounding graphite and/or carbon black with a melamine resin and/or urea resin on the surface of the sleeve. SOLUTION: The film contg. the graphite and/or carbon black in the melamine resin and/or the urea resin is formed on the surface of the sleeve 4. The reason why the melamine resin and/or the urea resin is selected for the film is to electrostatically charge toners 1 to a minus side as the melamine resin and the urea resin have the property to be liable to be electrostatically charged to a plus side in the triboelectrostatic charge. As a result, the prevention of selective development is made possible and even if printing-out is continued, the degradation in the image density is lessened. The graphite and/or carbon black which is a conductive pigment is projected to the surface of the coating, by which these projections are acted as the leak site for the electrostatically charged toners 1. The charge-up of the toners 1 is thus prevented and the sleeve ghost is prevented.
-
公开(公告)号：JPH08162320A
公开(公告)日：1996-06-21
申请号：JP29980194
申请日：1994-12-02
Applicant: BRIDGESTONE CORP
Inventor： SHINOGAYA TOSHIKAZU , MACHIDA KUNIO , KIJIMA SHIGERU , SAEGUSA TETSUJI
Abstract: PURPOSE: To reduce dispersion in dimensions and magnetic intensity characteristics and restrict the occurrence of draw or air bubbles by providing a pipe inside the main body portion of a magnet. CONSTITUTION: A magnet roller 1 has a hollow portion 3 continuous in axial direction inside said magnet roller. The cross section of the hollow portion 3 possessed by the main body portion of magnet can be circular or noncircular. Material of a pipe 5 is not specially restricted, but magnetic materials such as iron or copper are more desired since the magnetic powder of the main body of the magnet roller 1 can be orientatated. Also for its shape, about 10 to 50mm of outer diameter and about 1 to 5mm of thickness are desired. When forming a magnet roller having a more complicated magnetic intensity pattern, a noncircular type can be used. By doing this, the cooling time can be shortened and the dispersion in dimensions and magnetic intensity characteristics can be made extremely small.
-
公开(公告)号：JPH04348192A
公开(公告)日：1992-12-03
申请号：JP15113691
申请日：1991-05-27
Applicant: BRIDGESTONE CORP
Inventor： KURACHI IKUO , SAITO TASUKU , TAKAGI MITSUHARU , KIJIMA SHIGERU
IPC: C01B31/02 , C10M125/02 , C10M171/00 , C10N20/06 , C10N40/14 , C10N70/00
Abstract: PURPOSE:To provide a decidedly new non-aqueous electro-viscous fluid exhibiting excellent electro-viscous effect. CONSTITUTION:The objective electro-viscous fluid is produced by dispersing carbonaceous powder obtained by the heat-treatment of polyaniline powder in an oily medium having electrical insulation.
-
-
-
-
-
-
-
-
-
Search Results
46
records
(took 0.024 seconds)
