diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Account.java b/src/main/java/org/ntlab/acanthus_server/entities/Account.java
index 1c6cb4e..0f911e4 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Account.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Account.java
@@ -24,8 +24,15 @@
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import jdk.jshell.execution.LoaderDelegate;
 import org.ntlab.acanthus_server.models.Gallery;
 
+import javax.xml.crypto.Data;
+import java.text.DateFormat;
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.util.Calendar;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.UUID;
 
@@ -54,6 +61,9 @@
     private String password;
     @JsonIgnore
     private boolean isDummy;
+    @JsonIgnore
+    private LocalDateTime lastAccess;
+
 
     //-----------------------------------------------------------------
     //コンストラクト
@@ -63,6 +73,7 @@
     //-----------------------------------------------------------------
 
     public Account(Integer uid, String name, String email, String password) {
+        this.isDummy = false;
         this.uid = uid;
         this.name = name;
         this.email = email;
@@ -115,6 +126,7 @@
         return (this.token);
     }
 
+
     public HashMap<Integer, Work> getWorkHashMap() {
         return this.workHashMap;
     }
@@ -149,7 +161,7 @@
 
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
-    // トークンを更新する 藤井
+    // トークンを更新する
     public void updateToken() {
         if (!isDummy) this.token = UUID.randomUUID().toString();
     }
@@ -159,7 +171,20 @@
     public boolean isMatchedPassword(String password) {
         return this.password.equals(password);
     }
+    //-----------------------------------------------------------------
+    // トークンのチェック
+    public boolean isCollectToken(String token){
+        var timeoutThreshold = 3;
+        var nowDateTime = LocalDateTime.now();
 
+        if(lastAccess==null) lastAccess = nowDateTime;
+
+        // 時刻比較
+        var duration = Duration.between(lastAccess, nowDateTime).toHours();
+        if(duration > timeoutThreshold) return false;
+
+        return token.equals(this.token);
+    }
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
     // ダミー
@@ -170,6 +195,9 @@
         this.email = "d@dummy.com";
         this.password = "nittalab";
         this.token = "abc";
+        this.lastAccess = LocalDateTime.now();
+
+        //this.lastAccess = LocalDateTime.of(2015, 12, 15,  0,  0);
     }
     //-----------------------------------------------------------------
 }