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Inventor: Abe; Hiroshi
Address: Ushiku, JP
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7283771 |
Charging roller |
October 16, 2007 |
| A contact charging roller includes a support member and a conductive coating member. The conductive coating member is composed of a seamless tube that contains at least (1) a non-polar resin or a styrene-type thermoplastic elastomer excluding a poly(styrene-hydrogentaged butadiene-st |
| 7209683 |
Charging roller featuring specified ratio of storage elastic modulus and dynamic viscoelasticity |
April 24, 2007 |
| Charging roller has at least a support member and a conductive covering member, the charging roller where a value of tan .delta. expressed in a ratio of a storage elastic modulus and a loss elastic modulus by dynamic viscoelasticity in a cross sectional direction of the charging roller a |
| 7171142 |
Conductive roller, and process cartridge and electrophotographic apparatus which have conductive |
January 30, 2007 |
| In a conductive roller having a conductive substrate, a conductive elastic layer and a conductive cover layer, the conductive cover layer is formed of a seamless tube containing a thermoplastic polymer, the surface of the conductive roller is coated with an inorganic compound the particl |
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