公开(公告)号：JPH08160716A

公开(公告)日：1996-06-21

申请号：JP32167394

申请日：1994-11-30

Applicant: BRIDGESTONE CORP

Inventor： MASUDA YOSHITOMO ,  KANEDA HIROSHI ,  MIYAMOTO TARO ,  MAEDA HIROKO ,  INOUE YASUSHI ,  KAWAGOE TAKAHIRO

IPC: G03G15/02 ,  B29D99/00 ,  B29K75/00 ,  C08L75/00 ,  C08L75/04 ,  B29D31/00

Abstract: PURPOSE: To improve such problems as melt sticking or deposition of a toner caused during long-term use, problems of contamination of a photosensitive body or problems of adhesion of a photosensitive body. CONSTITUTION: This electrifying member is used to charge a body to be charged by bringing this member into contact with the body to be charged and applying voltage between this member and the body to be charged. At least the surface layer of the electrifying member contains a polyurethane as a structural material obtd. by using polyolefin polyol, polyoxytetramethylene polyol or a mixture of these as a polyol and liquid diphenylmethane-4,4'-diisocyanate as an isocyanate.

公开(公告)号：JPH08123143A

公开(公告)日：1996-05-17

申请号：JP28260894

申请日：1994-10-21

Applicant: BRIDGESTONE CORP

Inventor： MASUDA YOSHITOMO ,  MAEDA HIROKO ,  INOUE YASUSHI ,  KAWAGOE TAKAHIRO

IPC: G03G15/02 ,  C09D127/12

Abstract: PURPOSE: To reduce electric power, to lessen ozone generation and to lessen toner fusing and toner clogging by arranging an insoluble fluororesin near the surface of the contact part of an electrostatic charging member with a member to be electrostatically charged. CONSTITUTION: This electrostatic charging member is obtd. by providing the outer periphery of a shaft 1 consisting of a good conductive material, such as stainless steel, iron, brass or conductive plastic, subjected to a plating treatment, with a base layer 2 consisting of a conductive and elastic material, further, coating the outer periphery of the base layer 2 with a conductive film layer 3 which is imparted with an electrical conductivity by compounding a conductive material therewith and is added with the insoluble fluororesin. The powder of the insoluble fluororesin having preferably a grain size of

公开(公告)号：JPH04332465A

公开(公告)日：1992-11-19

申请号：JP13202691

申请日：1991-05-08

Applicant: BRIDGESTONE CORP

Inventor： OGINO TAKAO ,  OGAWA MASAO ,  MAEDA HIROKO ,  KIJIMA SHIGERU ,  TAKAGI MITSUHARU ,  KAWAGOE TAKAHIRO

IPC: B82Y99/00 ,  C01B31/02 ,  C01B31/04 ,  H01M4/133 ,  H01M4/587 ,  H01M10/05

Abstract: PURPOSE:To attain an excellent discharge capacity and cycle characteristics by exhibiting sufficiently performance of a graphitized carbon material used as an active material for a negative electrode. CONSTITUTION:A negative electrode is constituted of a compound containing a graphitized carbon material of 100 parts by weight obtained by doping lithium and a non-graphitized carbon material of 2-15 parts by weight having arithmetical mean particle diameter of not more than 70nm and also having chained structural diameter of 100-500nm.

公开(公告)号：JPS63289765A

公开(公告)日：1988-11-28

申请号：JP12492187

申请日：1987-05-21

Applicant: BRIDGESTONE CORP

Inventor： TOYOSAWA SHINICHI ,  KISHIMA SHIGERU ,  ARAI KATSUHIKO ,  MAEDA HIROKO ,  KAWAGOE TAKAHIRO

IPC: C08G73/02 ,  H01M4/60 ,  H01M4/66 ,  H01M4/74 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: PURPOSE:To improve local discharge and a cycle life by using poly aniline containing BF4 in a specified ratio for an active material of a positive electrode. CONSTITUTION:Poly aniline is used for an active material of a positive electrode. In this case the poly aniline contains BF4 of 15 to 30 wt.%. By using the poly aniline as described above for an active material of a positive electrode, local discharge is repressed and a long lived secondary battery is obtained. When the content of BF4 is less than 15 wt.% or more than 30 wt.%, discharge capacity and capacity retention are lowered, so that the purpose is not attained. As for an active material of a negative electrode a combination of Li-Al containing Li of 25 to 65 atomic % is preferable.

公开(公告)号：JP2000019855A

公开(公告)日：2000-01-21

申请号：JP18081898

申请日：1998-06-26

Applicant: BRIDGESTONE CORP

Inventor： MAEDA HIROKO ,  KAGA NORIHIKO ,  MASUDA YOSHITOMO ,  KAWAGOE TAKAHIRO

IPC: G03G15/01 ,  B29D99/00 ,  G03G15/16 ,  B29D31/00

Abstract: PROBLEM TO BE SOLVED: To provide a coating layer excellently following the elastic deformation of an elastic layer and having excellent durability against ozone and nitrogen oxides and to stably obtain an excellent image over a long term by using urethane resin as base bacterial resin forming the coating layer on the elastic layer and incorporating specified metallic oxide or hydroxide in the coating layer. SOLUTION: As for this intermediate transfer member 20; the coating layer 202 formed on the elastic layer 201 is constituted by incorporating the urethane resin and the oxide of metal selected from aluminum, zinc, magnesium and calcium or the hydroxide. In is desirable to use the urethane resin which is excellent in following ability to the deformation such as elongation of the elastic layer 201 and which is not cracked even when it is used for a long time, especially, in is desirable to use what is called one-liquid solvent dry solid type polyurethane in the raw materials of paint. By addition the oxide of the metal such as aluminum to the urethane resin, the durability of the urethane resin against the ozone and the nitrogen oxides is improved.

公开(公告)号：JPH1124441A

公开(公告)日：1999-01-29

申请号：JP12817098

申请日：1998-04-22

Applicant: BRIDGESTONE CORP

Inventor： NIWA HIDEYUKI ,  KAGA NORIHIKO ,  MAEDA HIROKO ,  YAMADA TSUTOMU ,  KAWAGOE TAKAHIRO ,  KITAMURA TAKASHI

IPC: B41L3/00 ,  B32B7/02 ,  B32B25/14 ,  F16C13/00 ,  G03G15/16

Abstract: PROBLEM TO BE SOLVED: To surely evaluate toner holding power without requiring the test of an actual machine and to surely obtain the excellent toner holding power by laminating an elastic layer and a coating film layer and specifying relation between the dielectric constant of the elastic layer and the volume resistivity of the coating film layer. SOLUTION: An OA apparatus member such as an intermediate transfer member is constituted by using a laminated body provided with an elastic layer 11 constituting of one or more than two plural layers and a coating film layer 12 consisting of one or more than two layers. In this case, when the dielectric constant of the layer 11 is defined as (εb) and the volume receptivity of the layer 12 is defined as (ρvs), two conditions of (1) 0

公开(公告)号：JPH10211661A

公开(公告)日：1998-08-11

申请号：JP3132797

申请日：1997-01-30

Applicant: BRIDGESTONE CORP

Inventor： MAEDA HIROKO ,  KAGA NORIHIKO ,  NIWA HIDEYUKI ,  YAMADA TSUTOMU ,  KAWAGOE TAKAHIRO

IPC: B41J13/076 ,  B29D29/00 ,  B65H5/06 ,  B65H27/00 ,  C08G18/62 ,  C09D175/04 ,  F16C13/00 ,  G03G7/00 ,  G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G15/20

Abstract: PROBLEM TO BE SOLVED: To conform excellently to elastic deformation of a rubber, a foam body, and the like by forming a skin layer with a fluorocarbon resin containing a functional group capable of reacting with an isocyanate group and a resin containing a reaction product with a polyisocyanate compound. SOLUTION: A skin layer 1 formed on the member surface includes fluorocarbon resin capable of reacting with an isocyanate group and a reaction product with a polyisocyanate compound. A rate of use of each component is not limited particularly; however, a reaction product is usually preferable which is obtained by reacting a 100-10 pts.wt., in particular, 80-20 pts.wt. polyisocyanate compound in a 100 pts.wt. fluorocarbon resin. For such an isocyanate group, though there is no limitation, a functional group can be exemplified which has active hydrogen such as a hydroxyl group, an amino group, a carboxyl group and a sulfonic group, and a hydroxyl group is most suitable among these groups.

公开(公告)号：JPH0987354A

公开(公告)日：1997-03-31

申请号：JP24783095

申请日：1995-09-26

Applicant: BRIDGESTONE CORP

Inventor： YAKUSHIJI MANABU ,  SAWA EIJI ,  KANEDA HIROSHI ,  NAKAJIMA TADASHI ,  MAEDA HIROKO ,  KAWAGOE TAKAHIRO

IPC: G03G15/16 ,  C08G18/48 ,  C08L75/00 ,  C08L75/08 ,  H01B1/20

Abstract: PROBLEM TO BE SOLVED: To obtain a conductive member which can be used for a mechanism of, e.g. electrophotography capable of sufficiently withstanding the heat generated when a high voltage is applied for a long time by using a polyurethane containing a specified polyether polyol as the polyol component. SOLUTION: In a conductive member used for a mechanism of, e.g. electrophotography, the member is made of a polyurethane containing a polyether polyol being a random glycerol/ethylene oxide/propylene oxide adduct as the polyol component. It is necessary that the conductive member used for the above object should have a specified electrical resistance, should sufficiently withstand the heat generated when a high voltage is applied for a long time, should not suffer from the contamination of the photoreceptor with especially the decomposition product of the polymeric member, and should not cause a change in electrical resistance. The conductive member can satisfy all of these requirements because the polyol component of the polyurethane contains both ethylene oxide and propylene oxide.

公开(公告)号：JPH06220685A

公开(公告)日：1994-08-09

申请号：JP2714493

申请日：1993-01-25

Applicant: METSUKU KK ,  BRIDGESTONE CORP

Inventor： KOSERA NAOMI ,  SAKAMOTO YOSHIHIRO ,  OFUKU EIJI ,  MAEDA HIROKO ,  KAWAGOE TAKAHIRO

IPC: C25D5/56 ,  C25D7/00 ,  H05K3/18

Abstract: PURPOSE:To form an electroplated layer having high reliability at a high deposition rate on an insulating material by doping a conductive high polymer compound with a specific dopant and a halogen at the time of electroplating a metal on the conductive high polymer compound substrate layer after the insulating material is coated with the polymer compound used as the primary material CONSTITUTION:At the time of forming a conductive metal plated layer on the inner surface of each of the through-holes of a printed circuit board made of the insulating material consisting of glass fibers and an epoxy resin, a coating layer of the conductive high polymer compound such as polyaniline, polypyrrole, etc., is formed on the surface of the insulating material of the inner surface of each of the through-holes. Then the coating film of the conductive high polymer compound is doped with a dopant contg. at least two anion groups per molecule such as polyvinylsulfonic acid or its salts, etc., and a halogen such as F , Cl , Br , I , particularly Cl , which is used in a form of Cl -containing compound such as HC1. Thereafter, a metal such as Ag is electroplated on the coating film of the surface-treated conductive high polymer compound used as the base. Thus, the metal electroplated layer having high reliability can be formed at a high deposition rate.

公开(公告)号：JPH0656987A

公开(公告)日：1994-03-01

申请号：JP23413592

申请日：1992-08-11

Applicant: BRIDGESTONE CORP

Inventor： KITANI AKIRA ,  SASAKI KAZUO ,  KAWAGOE TAKAHIRO ,  MAEDA HIROKO ,  OFUKU EIJI

IPC: C08G73/00 ,  C09D5/08

Abstract: PURPOSE:To produce a water-soluble conductive polymer. CONSTITUTION:An aminobenzenesulfonic acid compound or a mixture thereof with an aniline compound is polymerized through chemical oxidation to produce the water-soluble conductive polymer.