diff --git a/README.md b/README.md
index 427b607..b0a017b 100755
--- a/README.md
+++ b/README.md
@@ -2,6 +2,15 @@
 
 地域メッシュコードを扱うライブラリ
 
+```
+<!-- http://surveyor.mydns.jp/archiva/ -->
+<dependency>
+  <groupId>haya4.tools</groupId>
+  <artifactId>haya4-jpmesh</artifactId>
+  <version>0.0.1</version>
+</dependency>
+```
+
 ## See
 
 * [haya4-jpmesh wiki](http://surveyor.mydns.jp/gitbucket/haya4/haya4-jpmesh/wiki)
diff --git a/src/main/java/haya4/tools/jpmesh/Jpmesh.java b/src/main/java/haya4/tools/jpmesh/Jpmesh.java
index f93bc7e..4a37435 100644
--- a/src/main/java/haya4/tools/jpmesh/Jpmesh.java
+++ b/src/main/java/haya4/tools/jpmesh/Jpmesh.java
@@ -22,8 +22,8 @@
 				double lon2 = Double.parseDouble(str.substring(5, 6));
 				double lon3 = Double.parseDouble(str.substring(7, 8));
 
-				double lat = (((lat1 / 1.5 * 3600) + (lat2 * 5 * 60) + (lat3 * 60)) / 3600);
-				double lon = ((((lon1 + 100) * 3600) + (lon2 * 7.5 * 60) + (lon3 * 45)) / 3600);
+				double lat = (((lat1 / 1.5 * 3600) + (lat2 * 300) + (lat3 * 30)) / 3600);
+				double lon = ((((lon1 + 100) * 3600) + (lon2 * 450) + (lon3 * 45)) / 3600);
 				return new DirectPosition2D(lon, lat);
 			}
 		}
@@ -38,8 +38,8 @@
 	public static DirectPosition2D getCenterPosition(String str) {
 		DirectPosition2D ret = getPosition(str);
 		if (ret != null) {
-			double lat = (ret.getY() + (30d / 2 / 3600d));
-			double lon = (ret.getX() + (45d / 2 / 3600d));
+			double lat = (ret.getY() + (15.0d / 3600.0d));
+			double lon = (ret.getX() + (22.5d / 3600.0d));
 			return new DirectPosition2D(lon, lat);
 		}
 		return null;
@@ -50,7 +50,7 @@
 		if (ret != null) {
 			double lat = (ret.getY());
 			double lon = (ret.getX());
-			return new Rectangle2D.Double(lon, lat, (45d / 3600d), (30d / 3600d));
+			return new Rectangle2D.Double(lon, lat, 0.0125d, (30d / 3600d));
 		}
 		return null;
 	}
diff --git a/src/main/java/haya4/tools/jpmesh/Position.java b/src/main/java/haya4/tools/jpmesh/Position.java
deleted file mode 100644
index 67fea40..0000000
--- a/src/main/java/haya4/tools/jpmesh/Position.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package haya4.tools.jpmesh;
-
-public class Position {
-	double lat = 0.0d;
-	double lon = 0.0d;
-	
-	public Position() {
-		this.lat = 0.0d;
-		this.lon = 0.0d;
-	}
-	
-	public Position(double lat, double lon) {
-		this.lat = lat;
-		this.lon = lon;
-	}
-	
-	public double getX() {
-		return this.lat;
-	}
-	
-	public double getY() {
-		return this.lon;
-	}
-
-}
diff --git a/src/test/java/haya4/tools/jpmesh/JpmeshTest.java b/src/test/java/haya4/tools/jpmesh/JpmeshTest.java
index 0542aaf..d0fc874 100755
--- a/src/test/java/haya4/tools/jpmesh/JpmeshTest.java
+++ b/src/test/java/haya4/tools/jpmesh/JpmeshTest.java
@@ -19,7 +19,7 @@
     	
     	ret = Jpmesh.getPosition("53394526");
     	assertNotNull(ret);
-    	assertEquals(35.7d, ret.getY(), 0.000001d);
+    	assertEquals(35.683333d, ret.getY(), 0.000001d);
     	assertEquals(139.7d, ret.getX(), 0.000001d);
     }
 
@@ -27,7 +27,7 @@
     public void getCenterTest() {
     	DirectPosition2D center = Jpmesh.getCenterPosition("53394526");
     	assertNotNull(center);
-    	assertEquals(35.7041666d, center.getY(), 0.000001d);
+    	assertEquals(35.6875d, center.getY(), 0.000001d);
     	assertEquals(139.70625d, center.getX(), 0.000001d);
     }
 
@@ -35,7 +35,7 @@
     public void getRectangleTest() {
     	Rectangle2D rect = Jpmesh.getRectangle("53394526");
     	assertNotNull(rect);
-    	assertEquals(35.7d, rect.getY(), 0.000001d);
+    	assertEquals(35.683333d, rect.getY(), 0.000001d);
     	assertEquals(139.7d, rect.getX(), 0.000001d);
     	assertEquals(0.0083333d, rect.getHeight(), 0.000001d);
     	assertEquals(0.0125, rect.getWidth(), 0.000001d);