diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
index 616afcda2..7dd0158e1 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/ImporterContext.cs
@@ -10,7 +10,7 @@ namespace UniGLTF
     /// <summary>
     /// GLTF importer
     /// </summary>
-    public class ImporterContext : IDisposable
+    public class ImporterContext : IResponsibilityForDestroyObjects
     {
         public ITextureDescriptorGenerator TextureDescriptorGenerator { get; protected set; }
         public IMaterialDescriptorGenerator MaterialDescriptorGenerator { get; protected set; }
@@ -358,7 +358,7 @@ namespace UniGLTF
         /// Root ヒエラルキーで使っているリソース
         /// </summary>
         /// <returns></returns>
-        public virtual void TransferOwnership(Func<UnityEngine.Object, bool> take)
+        public virtual void TransferOwnership(TakeResponsibilityForDestroyObjectFunc take)
         {
             var list = new List<UnityEngine.Object>();
             foreach (var mesh in Meshes)
diff --git a/Assets/VRM/Runtime/IO/VRMImporterContext.cs b/Assets/VRM/Runtime/IO/VRMImporterContext.cs
index f2fcca636..1874b8fb7 100644
--- a/Assets/VRM/Runtime/IO/VRMImporterContext.cs
+++ b/Assets/VRM/Runtime/IO/VRMImporterContext.cs
@@ -317,7 +317,7 @@ namespace VRM
             return meta;
         }
 
-        public override void TransferOwnership(Func<UnityEngine.Object, bool> take)
+        public override void TransferOwnership(TakeResponsibilityForDestroyObjectFunc take)
         {
             // VRM 固有のリソース(ScriptableObject)
             if (take(HumanoidAvatar))
diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs b/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs
new file mode 100644
index 000000000..cff41ebcc
--- /dev/null
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs
@@ -0,0 +1,20 @@
+using System;
+
+namespace VRMShaders
+{
+    public delegate bool TakeResponsibilityForDestroyObjectFunc(UnityEngine.Object obj);
+
+    /// <summary>
+    /// UnityObjectを破棄する責務。
+    /// 
+    /// この interface を実装するクラスは、利用後に破棄すべき UnityObject を保持する可能性があるので
+    /// Dispose により解放すること。
+    /// 
+    /// TransferOwnership により、破棄責任を移譲することができる。
+    /// 
+    /// </summary>
+    public interface IResponsibilityForDestroyObjects : IDisposable
+    {
+        void TransferOwnership(TakeResponsibilityForDestroyObjectFunc take);
+    }
+}
diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs.meta b/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs.meta
new file mode 100644
index 000000000..bb07b2ed6
--- /dev/null
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/IResponsibilityForDestroyObjects.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 93ab2216c7e8c684d84873bd2ae72c6e
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/MaterialFactory.cs b/Assets/VRMShaders/GLTF/IO/Runtime/MaterialFactory.cs
index d30f029bc..f186820d5 100644
--- a/Assets/VRMShaders/GLTF/IO/Runtime/MaterialFactory.cs
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/MaterialFactory.cs
@@ -9,7 +9,7 @@ namespace VRMShaders
 {
     public delegate Task<Texture> GetTextureAsyncFunc(TextureDescriptor texDesc);
 
-    public class MaterialFactory : IDisposable
+    public class MaterialFactory : IResponsibilityForDestroyObjects
     {
         private readonly IReadOnlyDictionary<SubAssetKey, Material> m_externalMap;
 
@@ -79,7 +79,7 @@ namespace VRMShaders
         ///
         /// </summary>
         /// <param name="take"></param>
-        public void TransferOwnership(Func<UnityEngine.Object, bool> take)
+        public void TransferOwnership(TakeResponsibilityForDestroyObjectFunc take)
         {
             var list = new List<Material>();
             foreach (var x in m_materials)
diff --git a/Assets/VRMShaders/GLTF/IO/Runtime/TextureFactory.cs b/Assets/VRMShaders/GLTF/IO/Runtime/TextureFactory.cs
index d3bc48f0c..8353d7a34 100644
--- a/Assets/VRMShaders/GLTF/IO/Runtime/TextureFactory.cs
+++ b/Assets/VRMShaders/GLTF/IO/Runtime/TextureFactory.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace VRMShaders
 {
-    public class TextureFactory : IDisposable
+    public class TextureFactory : IResponsibilityForDestroyObjects
     {
         private readonly ITextureDeserializer _textureDeserializer;
         private readonly IReadOnlyDictionary<SubAssetKey, Texture> _externalMap;
@@ -43,7 +43,7 @@ namespace VRMShaders
         /// 所有権(Dispose権)を移譲する
         /// </summary>
         /// <param name="take"></param>
-        public void TransferOwnership(Func<UnityEngine.Object, bool> take)
+        public void TransferOwnership(TakeResponsibilityForDestroyObjectFunc take)
         {
             var transferredAssets = new HashSet<SubAssetKey>();
             foreach (var x in _textureCache)