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Inventor: Yoshiko Ishii


Address: Tokyo, JP
No. of patents: 3
Last patent issue date: 06/10/1997

NumberTitleIssue Date
5638159Developing unit for an image forming apparatus and method of collecting bicomponent developer therefrom
A developing unit using a bicomponent developer and capable of collecting only carrier included in the developer and deteriorated due to aging while recycling toner, and a method of collecting the developer from the developing unit. The developing unit se...
06/10/1997
5442430Color image forming apparatus and cleaning device therefor
A color image forming apparatus and a cleaning device therefor are disclosed. Toner of different colors left on a photoconductive element image transfer are sequentially collected by respective cleaning units. A recycling mechanism, including conveyor scr...
08/15/1995
4284722Heat and acid-stable alpha-amylase enzymes and processes for producing the same
Heat and acid-stable alpha-amylase enzymes having the following characteristics: (1) capable of retaining at least about 70% of their initial activity when held at 90° C. and at a pH of 6.0 for 10 minutes in the absence of calcium ion; (2) capable of ret...
08/18/1981
 
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