diff --git a/src/osm/jp/coverage/postoffice/CoverageAll.java b/src/osm/jp/coverage/postoffice/CoverageAll.java
index d8bc432..2018c6f 100644
--- a/src/osm/jp/coverage/postoffice/CoverageAll.java
+++ b/src/osm/jp/coverage/postoffice/CoverageAll.java
@@ -16,8 +16,8 @@
 
     public static void main(String[] args) throws FileNotFoundException, ClassNotFoundException, SQLException, IOException, ParserConfigurationException, SAXException, TransformerException
     {
-        File outputFileCsv = new File(DbPostoffice.TABLE_NAME +".csv");
-        File outputFileJson = new File(DbPostoffice.TABLE_NAME +".json");
+        File outputFileCsv = new File("coverage.postoffice.csv");
+        File outputFileJson = new File("coverage.postoffice.json");
         
         osm.jp.postgis.CoverageAll obj = new osm.jp.postgis.CoverageAll(DbPostoffice.TABLE_NAME);
         
@@ -26,7 +26,7 @@
         try {
             obj.load(conPost, conHsql);
             obj.outputCSV(outputFileCsv);
-            obj.outputJson(outputFileJson);
+            obj.outputJson(outputFileJson, "国土数値情報 郵便局データ（平成25年）");
         }
         finally {
             DatabaseTool.closeDb(conHsql);
diff --git a/src/osm/jp/postgis/CoverageAll.java b/src/osm/jp/postgis/CoverageAll.java
index 739914f..5c0015d 100644
--- a/src/osm/jp/postgis/CoverageAll.java
+++ b/src/osm/jp/postgis/CoverageAll.java
@@ -43,7 +43,7 @@
         try {
             obj.load(conPost, conHsql);
             obj.outputCSV(outputFileCsv);
-            obj.outputJson(outputFileJson);
+            obj.outputJson(outputFileJson, "Data source");
         }
         finally {
             DatabaseTool.closeDb(conHsql);
@@ -148,14 +148,14 @@
         }
     }
     
-    public void outputJson(File outputFile) throws FileNotFoundException, UnsupportedEncodingException, IOException {
+    public void outputJson(File outputFile, String sourcedata) throws FileNotFoundException, UnsupportedEncodingException, IOException {
         try (BufferedWriter hw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFile), "UTF-8"))) {
             int level = 0;
             hw.write(space(level++) + "{");
             hw.newLine();
             hw.write(space(level) + "\"timestamp\": \""+ LocalDate.now().format(DateTimeFormatter.ISO_DATE) +"\",");
             hw.newLine();
-            hw.write(space(level) + "\"sourcedata\": \"国土数値情報　燃料給油所データ 平成２８年(2016)\",");
+            hw.write(space(level) + "\"sourcedata\": \""+ sourcedata +"\",");
             hw.newLine();
             hw.write(space(level++) + "\"coverage\": [");
             hw.newLine();
@@ -176,6 +176,8 @@
                 hw.newLine();
                 hw.write(space(level) + "\"denominator\": "+ String.valueOf(cover.denominator) +",");
                 hw.newLine();
+                hw.write(space(level) + "\"molecule\": "+ String.valueOf(cover.molecule) +",");
+                hw.newLine();
                 hw.write(space(level) + "\"par\": "+ String.valueOf(df3.format(cover.par)));
                 hw.newLine();