| Tsurumi Soda Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110165389 | METHOD FOR FORMING CONDUCTIVE POLYMER PATTERN - The present invention is a method for forming a patterned electroconductive layer containing an electroconductive polymer on a surface of a base body and is characterized in that a positive type photoresist composition containing a naphthoquinone diazide and a novolak resin is used, and that a developer containing a potassium ion at a concentration of 0.08 mol/l to 0.20 mol/l, and a coexistent sodium ion at a concentration of less than 0.1 mol/l is used for development of a resist film obtained by the positive type photoresist composition. | 07-07-2011 |
| 20100089872 | ETCHING LIQUID FOR CONDUCTIVE POLYMER, AND METHOD FOR PATTERNING CONDUCTIVE POLYMER - The object is to provide an etching liquid for a conductive polymer having excellent etching capability toward a conductive polymer, and a method for patterning a conductive polymer employing the etching liquid for a conductive polymer. The conductive etching liquid of the present invention is selected from the group consisting of (1) an etching liquid comprising greater than 0.5 wt % but no greater than 70 wt % of (NH | 04-15-2010 |
| 20090078679 | ETCHING SOLUTION AND METHOD FOR REGENERATING WASTE LIQUID THEREOF, AND METHOD FOR RECOVERING VALUABLE METALS FROM WASTE LIQUID - The present invention provides etching solution for alloy steel such as stainless steel using ferric chloride, in which ferric chloride can be regenerated without carrying out an operation of removing chromium and nickel and while suppressing an increase in the amount of the etching solution, and an etching method using the etching solution. | 03-26-2009 |
