diff --git a/app/controllers/personal_patents_controller.rb b/app/controllers/personal_patents_controller.rb
index 8149aff..025468f 100644
--- a/app/controllers/personal_patents_controller.rb
+++ b/app/controllers/personal_patents_controller.rb
@@ -18,7 +18,7 @@ class PersonalPatentsController < ApplicationController
       fields_to_show.each do |fs|
         case fs
           when "patent_title"
-            t << {"value" => "<a href='#{OrbitHelper.url_to_show(patent.to_param)}'>" + (patent.send(fs) rescue "") + "</a>"}
+            t << {"value" => "<a href='#{OrbitHelper.url_to_show(patent.to_param)}' target='_blank'>" + (patent.send(fs) rescue "") + "</a>"}
           when "publish_date"
             t << {"value" => (patent.publish_date.strftime("%Y/%m/%d") rescue "")}
           when "application_date"
diff --git a/app/models/patent.rb b/app/models/patent.rb
index 7d2f113..02b71fa 100644
--- a/app/models/patent.rb
+++ b/app/models/patent.rb
@@ -140,7 +140,7 @@ class Patent
       value = self.send(field) rescue ""
     end
 
-    value = (value =~ /\A#{URI::regexp(['http', 'https'])}\z/) ? "<a href='#{value}' target='blank'>#{value}</a>" : value
+    value = (value =~ /\A#{URI::regexp(['http', 'https'])}\z/) ? "<a href='#{value}' target='_blank'>#{value}</a>" : value
     
     {
       "key"=>field,