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Inventor: Fujii; Shigeo
Address: Wakayama, JP
No. of patents: 6
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7220676 |
Roll-off reducing agent |
May 22, 2007 |
| A roll-off reducing agent comprising one or more compounds selected from the group consisting of carboxylic acids having 2 to 20 carbon atoms having either OH group or groups or SH group or groups, monocarboxylic acids having 1 to 20 carbon atoms, and dicarboxylic acids having 2 to 3 |
| 7204936 |
Polishing composition |
April 17, 2007 |
| A polishing composition comprising 0.03 to 0.5% by weight of an organic acid or a salt thereof, an abrasive and water, wherein the abrasive has a surface potential of from -140 to 200 mV; a roll-off reducing agent comprising an inorganic compound having a property of controlling a su |
| 6918938 |
Polishing composition |
July 19, 2005 |
| A polishing composition comprising an abrasive, an acid and/or a salt thereof, and water, wherein copper (Cu) is contained in an amount of 1 mg or less per kg of the polishing composition; a process for reducing a surface defect of a substrate comprising applying to a substrate or a |
| 6902591 |
Polishing composition |
June 7, 2005 |
| A polishing composition comprising an abrasive, water and an organic acid or a salt thereof, wherein the composition has a specified viscosity of from 1.0 to 2.0 mPa.multidot.s at a shearing rate of 1500 s.sup.-1 and 25.degree. C.; a roll-off reducing agent comprising a Bronsted acid or |
| 6569216 |
Abrasive fluid compositions |
May 27, 2003 |
| A polishing composition comprising a chelating compound or a salt thereof; a partially esterified product and/or partially etherified product of a polyhydric alcohol compound; and water; a polishing composition comprising water, an abrasive, an intermediate alumina, and a chelating compo |
| 6454820 |
Polishing composition |
September 24, 2002 |
| A polishing composition comprising silica particles, water, and Fe salt and/or Al salt of a polyaminocarboxylic acid; a polishing process comprising applying the polishing composition; a process for manufacturing a magnetic disk substrate, comprising the step of polishing a substrate |
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