公开(公告)号：JPH10115988A

公开(公告)日：1998-05-06

申请号：JP17521397

申请日：1997-06-16

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  MAEDA HIROKO ,  YAKUSHIJI MANABU ,  KAWAGOE TAKAHIRO ,  INOUE KANJI

IPC: G03G15/16 ,  B29D99/00 ,  B29K75/00 ,  C08K3/04 ,  C08L75/04 ,  C08L101/00 ,  F16C13/00 ,  G03G15/08 ,  H01B1/24 ,  B29D31/00

Abstract: PROBLEM TO BE SOLVED: To obtain a conductive member in which the increase of electric resistance by continuous energizing is small, and between the varying width of the electric resistance at the time of a low temperature and a low humidity and that at the time of a high temperature and a high humidity is small, and which is suitably used as a developing member and an electrifying member for electrophotographic processing. SOLUTION: The electric resistance with measuring voltage of 1000V under the conditions of temperature 15 deg.C and relative humidity 10% is equal to or below ten times of the electric resistance with measuring voltage 1000V under the conditions of temperature 32.5 deg.C and relative humidity 85%, and also the electric resistance with measuring voltage 1000V under the conditions of temperature 15 deg.C and relative humidity 10% after continuously energizing by electric power 10mW is made equal to or below three times of the electric resistance with measuring voltage 1000V under the same conditions as before continuous energizing.

公开(公告)号：JPH0869148A

公开(公告)日：1996-03-12

申请号：JP20578594

申请日：1994-08-30

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  MASUDA YOSHITOMO ,  KAWAGOE TAKAHIRO

IPC: G03G15/02

Abstract: PURPOSE: To obtain a charging member for an electrophotographic charging device for electrification having specified electric resistance, low hardness, little permanent compressive strain and extremely low contamination property to a photoreceptor by incorporating urethane that is hardened with a liquid MDI into the base body of the charging member. CONSTITUTION: A base body containing urethane is used for the member for an electrostatic charging device. A formed body of urethane is also preferable. The foaming method is not limited and a method using a foaming agent or by mixing bubbles by mechanical stirring is preferably used. The hardening agent for urethane foams is a liquid MDI such as crude diphenylmethane diisocyanate, urethaneimine-modified diphenylisocyanate, carbodiimide-modified diphenylmethane diisocyanate urethane-medified diphenylmethane diisocyanate and/or hydrogenated material of these. Especially, crude diphenylmethane diisocyanate is preferably used, and crude diphenylmethane diisocyanate having >=3.0 of functional group number is more preferable.

公开(公告)号：JPH0854792A

公开(公告)日：1996-02-27

申请号：JP18865694

申请日：1994-08-10

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  KANEDA HIROSHI ,  MIYAMOTO TARO ,  KAWAGOE TAKAHIRO

IPC: G03G15/16

Abstract: PURPOSE:To provide a transfer member having a prescribed electrical resistance, low hardness, small compression set and low staining to a photoreceptor body, etc., by containing an urethane obtained by curing a base material with a liquid MDT as a structural material. CONSTITUTION:Liquid MDI such as crude diphenylmethane diisocyanate (crude MDI), urethane imine modified diphenylmethane diisocyanate and/or these hydrogenerated material is used as hardener of urethane foam. The crude diphenylmethane diisocyanate (crude MDI) is particularly preferable in the liquid MDI from the view point of the staining to the photosensitive body and one having functional groups of >=3.0 is particularly preferable. The producing method of the urethane is not restricted. And electrical conductivity is given by adding the inorganic salt such as an electrical conductive filler such as carbon black and an electron acceptor capable of forming a charge transfer complex alone or in combination. As the carbon black to be used, acetylene black, channel black or the like is preferably used.

公开(公告)号：JPH02302641A

公开(公告)日：1990-12-14

申请号：JP12344589

申请日：1989-05-17

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  KAWAGOE TAKAHIRO

IPC: G01L9/06 ,  C08G73/02

Abstract: PURPOSE:To make it possible to provide a sensor which is resistant to tempera ture change, suitable for surface pressure, gage pressure, hydrostatic pressure and absolute pressure and has a broad dynamic range by using polyaniline for a sensor. CONSTITUTION:Polyaniline with a thickness of 115 mum is pressed with a pressure of 200 kg/cm under the dry state and cut into the size of 1 mm in width and 6 mm in length. Gold is deposited on four points by evaporation for four- terminal method. Terminals are led out by using gold wires (b) and gold paste. Currents of 20 muA and 50 muA are made to flow through the terminals at both ends in order to remove the effect of thermal electromotive force. The potential difference between inner two terminals is measured. The resistance is obtained from the inclination of the potential difference. In this pressure sensor, conductivity is linearly changed by 250% for the pressure up to 7,000 kg f/cm at 680 omegaunder the normal pressure. The change is reversible. In this way, hydrostatic pressure is detected within a broad pressure range of 0 - 7,000 kg f/cm . The change in conductivity reaches 250%. This method can be applied to the detection of surface pressure and gage pressure.

公开(公告)号：JPH022913A

公开(公告)日：1990-01-08

申请号：JP14858088

申请日：1988-06-16

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  IINO TAKAHIRO ,  KAWAGOE TAKAHIRO

IPC: G01N27/327 ,  A61B5/145 ,  A61B5/1477 ,  A61B5/1486 ,  G01N27/30

Abstract: PURPOSE:To make it possible to impart excellent quantitative property and small amount of specimen, by laminating a developed layer on the modified layer of an electrode. CONSTITUTION:A developed layer 3 is laminated on a modified layer 2 on an electrode main body 1. As the developed layer 3, no special restriction is provided. For hydrophilic specimen liquid, gauze, blotting paper and polyamide based nonwoven fabric are suitable. For hydrophobic specimen liquid, polyolefin based nonwoven fabric made of polyethylene and the like and polypropylene based nonwoven fabric are suitable. With this electrode, quantitative property is excellent, and the amount of specimen to be measured can be reduced.

公开(公告)号：JPH01182747A

公开(公告)日：1989-07-20

申请号：JP620888

申请日：1988-01-14

Applicant: BRIDGESTONE CORP

Inventor： IINO TAKAHIRO ,  NAKAJIMA TADASHI ,  KAWAGOE TAKAHIRO

IPC: H01M4/86 ,  G01N27/30 ,  G01N27/327 ,  H01M4/90

Abstract: PURPOSE:To obtain an electrode characterized by excellent current dependency for enzyme concentration, stable performance for a long period and a low cost, by using a reduction type redox compound, which is insoluble in water and soluble in organic solvent, as an electron transfer material. CONSTITUTION:As an enzyme electrode, a reduction type redox compound such as phenothiazine, phenoxazine and the like, which is insoluble in water and soluble in organic solvent, is used as mediator. Electrons are made to trans fer between oxidation-reduction enzyme and a current collector with the media tor, and an electric signal is detected. Thus the substrate is determined. The stable redox compound in the reduced state is used as the mediator. A potential, which is higher than the oxidation-reduction potential of the redox compound, is applied, and electrolytic oxidation is performed. Therefore, the reaction speed of the entire system does not become a rate determining state owing to the reducing reaction of the mediator. Thus the electron acceptance reaction from the enzyme is efficiently performed, and the large current value is obtained. Furthermore, the reduction type redox compound can be used in a pattern, in which it is incorporated in a macromolecule compound such as poly tetrafluoroethylene.

公开(公告)号：JPS6356521A

公开(公告)日：1988-03-11

申请号：JP20078786

申请日：1986-08-27

Applicant: BRIDGESTONE CORP

Inventor： NAKAJIMA TADASHI ,  TOYOSAWA SHINICHI ,  SUZUKI KINYA ,  MIYAZAKI TADAAKI ,  KITAMURA TAKASHI ,  KAWAGOE TAKAHIRO

IPC: C08G61/12 ,  C08G61/10 ,  H01B1/12

Abstract: PURPOSE:To obtain the titled polyaniline with a specific oxygen content or less and capable of providing a cell having large discharge volume and excellent repeating life of charge and discharge when used as an electrode material. CONSTITUTION:The aimed polyaniline with , more preferably 30mA/cm current density.

公开(公告)号：JPS61260543A

公开(公告)日：1986-11-18

申请号：JP10339185

申请日：1985-05-15

Applicant: BRIDGESTONE CORP

Inventor： SUZUKI KINYA ,  TOYOSAWA SHINICHI ,  NAKAJIMA TADASHI ,  KAWAGOE TAKAHIRO

IPC: C08G73/02 ,  H01M4/137 ,  H01M4/40 ,  H01M4/60 ,  H01M4/66 ,  H01M4/02

Abstract: PURPOSE:To obtain a cell of high energy density, by constructing the electrodes of the cell with polyaniline and carbonaceous thin layer collector. CONSTITUTION:The electrodes are constructed with polyaniline and carbonaceous thin layer collector, and in this case it is desirable to use flexible carbonaceous material especially 0.1-100mum thick as the carbonaceous thinlayer collector. Because graphitic material can produce good polyaniline membrane for positive electrode when used to produce polyaniline by electrolytic polymerization, and in addition it has low electric resistance as collector for a cell, so graphitic material can be used very desirably as carbonaceous material. And it is desirable to adjust the thickness of polyaniline especially to 0.5-2mm.

公开(公告)号：JPS60221973A

公开(公告)日：1985-11-06

申请号：JP7826184

申请日：1984-04-18

Applicant: BRIDGESTONE CORP

Inventor： OGAWA MASAO ,  MIYAZAKI TADAAKI ,  TOYOSAWA SHINICHI ,  MASUDA YOSHITOMO ,  NAKAJIMA TADASHI ,  KAWAGOE TAKAHIRO ,  FUJIO RIYOUTA

IPC: H01M4/60 ,  H01M10/05 ,  H01M10/0566

Abstract: PURPOSE:To obtain a secondary battery having high power and light weight by forming a positive electrode with electric conductive high polymer and a negative electrode with carbon containing graphite structure. CONSTITUTION:A secondary battery is fabricated by using electric conductive high polymer as a positive electrode, carbon containing graphite structure as a negative electrode, and electrolyte prepared by dissolving a compound capable of electrolytically producing an ion which can be doped into the positive and negative electrodes in a nonaqueous solvent. Performance, espetially energy density, of the secondary battery is substantially increased compared with a secondary battery using conventional electric conductive high polymer. Artificial carbon prepared by carbonizing a substance at a temperature of above 1,000 deg.C and less than 2,500 deg.C, or artificial graphite prepared by graphitizing a substace at 2,500 deg.C or more, or natural graphite is preferable as the carbon containing graphite structure.

公开(公告)号：JP2010237663A

公开(公告)日：2010-10-21

申请号：JP2010049299

申请日：2010-03-05

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： NAKAJIMA TADASHI

IPC: G03G15/05 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide an image carrier which achieves reduction of cost and weight of an image forming apparatus and simplification of an image forming process by reducing parts used for the image forming apparatus, and to provide the image forming apparatus using the same. SOLUTION: In the image carrier used in the image forming apparatus, a plurality of electrodes for forming an electrostatic latent image on a surface of the image carrier are arranged. The image forming apparatus uses this image carrier. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种图像载体，其通过减少用于图像形成装置的部件来实现图像形成装置的成本和重量的降低和图像形成处理的简化，并且使用 一样。 解决方案：在图像形成装置中使用的图像载体中，布置有用于在图像载体的表面上形成静电潜像的多个电极。 图像形成装置使用该图像载体。 版权所有（C）2011，JPO＆INPIT