diff --git a/po/ChangeLog b/po/ChangeLog
index 681d11fb940594f7ae157d685e8ce1e2bc715902..88130b1906bc59bf7042267ef14c29fc42d116dd 100644
--- a/po/ChangeLog
+++ b/po/ChangeLog
@@ -1,3 +1,7 @@
+2009-07-04  Masato Hashimoto <cabezon.hashimoto@gmail.com>
+
+	* ja.po: Japanese translation update (Masato Hashimoto)
+
 2009-06-28  Mike Massonnet <mmassonnet@xfce.org>
 
 	* ur.po, ur_PK.po: Urdu translation update (Muhammad Ali Makki)
diff --git a/po/ja.po b/po/ja.po
index 539cde0d307b7dbe871b4baf71958d213da03d72..26b207026e679d3ba4dc48e9543a237c67545a23 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -8,8 +8,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: xfce4-power-manager 0.6.0svn\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2009-07-03 21:53+0200\n"
-"PO-Revision-Date: 2009-05-17 17:43+0900\n"
+"POT-Creation-Date: 2009-07-04 22:43+0900\n"
+"PO-Revision-Date: 2009-07-04 16:16+0900\n"
 "Last-Translator: Masato Hashimoto <cabezon.hashimoto@gmail.com>\n"
 "Language-Team: Japanese <xfce-users-jp@ml.fdiary.net>\n"
 "MIME-Version: 1.0\n"
@@ -239,7 +239,7 @@ msgstr "問い合わせる"
 
 #: ../settings/xfpm-settings.c:850 ../settings/xfpm-settings.c:974
 msgid "Lock screen"
-msgstr ""
+msgstr "画面をロック"
 
 #: ../settings/xfpm-settings.c:1058
 msgid "When battery is present"
@@ -267,7 +267,8 @@ msgstr "ハイバネート操作が許可されていません"
 
 #: ../settings/xfpm-settings.c:1343
 msgid "When all the power sources of the computer reach this charge level"
-msgstr "コンピュータのすべての電源の充電レベルがこの値に達したとき"
+msgstr ""
+"コンピュータのすべての電源の充電レベルがこの値に達した時が対象となります"
 
 #: ../settings/xfpm-settings.c:1485 ../settings/xfpm-settings.c:1490
 msgid "On Battery"
@@ -278,9 +279,8 @@ msgid "Extended"
 msgstr "æ‹¡å¼µ"
 
 #: ../settings/xfpm-settings.c:1569
-#, fuzzy
 msgid "Check your power manager installation"
-msgstr "他の Xfce 電源管理がすでに動作しています"
+msgstr "電源管理が正しくインストールされていることを確認してください"
 
 #: ../settings/xfpm-settings-main.c:72
 msgid "Settings manager socket"