diff --git a/ecs/jskult-webapp/src/controller/master_mainte.py b/ecs/jskult-webapp/src/controller/master_mainte.py
index ac9fa50b..e9d4ed14 100644
--- a/ecs/jskult-webapp/src/controller/master_mainte.py
+++ b/ecs/jskult-webapp/src/controller/master_mainte.py
@@ -19,6 +19,7 @@ from src.model.view.master_mainte_menu_view_model import \
 from src.model.view.table_override_view_model import TableOverrideViewModel
 from src.router.session_router import AuthenticatedRoute
 from src.services.batch_status_service import BatchStatusService
+from src.services.login_service import LoginService
 from src.services.master_mainte_service import MasterMainteService
 from src.system_var import constants
 from src.templates import templates
@@ -164,7 +165,8 @@ def new_inst_result_view(
     request: Request,
     csv_upload_form: Optional[MasterMainteCsvUpModel] = Depends(MasterMainteCsvUpModel.as_form),
     master_mainte_service: MasterMainteService = Depends(get_service(MasterMainteService)),
-    batch_status_service: BatchStatusService = Depends(get_service(BatchStatusService))
+    batch_status_service: BatchStatusService = Depends(get_service(BatchStatusService)),
+    login_service: LoginService = Depends(get_service(LoginService))
 ):
     session: UserSession = request.session
 
@@ -179,9 +181,10 @@ def new_inst_result_view(
     # dump処理中の場合、ログアウトさせる
     if batch_status_service.is_dump_processing():
         raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail=constants.LOGOUT_REASON_BACKUP_PROCESSING)
-
-    # 画面表示用のモデル
-    mainte_csv_up = master_mainte_service.prepare_mainte_new_inst_view(session.user_id, csv_upload_form)
+    # ユーザIDからユーザ名を取得
+    user_name = login_service.logged_in_user(session.user_id).user_name
+    # CSVデータを登録し、登録完了画面のモデルを返却する
+    mainte_csv_up = master_mainte_service.prepare_mainte_new_inst_view(user_name, csv_upload_form)
 
     # レスポンス
     session_key = session.session_key