--- japanese-custom-utf8.scm.orig
+++ japanese-custom-utf8.scm
@@ -387,6 +387,17 @@
     ((("z" "/"). ())("・" "・" "･"))
     ))
 
+(define string-to-list
+  (lambda (s)
+    (with-char-codec "UTF-8"
+      (lambda ()
+	(map! (lambda (c)
+		(let ((str (list->string (list c))))
+		  (with-char-codec "ISO-8859-1"
+		    (lambda ()
+		      (%%string-reconstruct! str)))))
+	      (reverse! (string->list s)))))))
+
 (define ja-rk-rule-basic-uim ja-rk-rule-basic)
 
 (define ja-rk-rule-rule->table (lambda (rule)

--- japanese-utf8.scm.orig
+++ japanese-utf8.scm
@@ -31,7 +31,7 @@
 ;; Japanese EUC
 
 (require-extension (srfi 1 2))
-(require-custom "japanese-custom.scm")
+(require-custom "japanese-custom-utf8.scm")
 (require "util.scm")
 
 (define ja-rk-rule-additional
@@ -613,8 +613,9 @@
       (if (= ej0 #x8f) ; SS3?
         (<= #xa1 ej2 #xfe) ; IN_GR94()
         (<= #xa0 ej2 #xff)) ; IN_GR96()
-      (ja-euc-jp-code->euc-jp-string
-        (+ (* ej0 #x10000) (* ej1 #x100) ej2)))))
+      (iconv-code-conv (iconv-open "UTF-8" "EUC-JP")
+		       (ja-euc-jp-code->euc-jp-string
+			(+ (* ej0 #x10000) (* ej1 #x100) ej2))))))
 
 ;;; Convert reverse string list of JIS code to one EUC-JP kanji string
 ;;; ("d" "2" "0" "5") -> "亅"
@@ -655,9 +656,8 @@
      (valid? ; sigscheme/src/sigschemeinternal.h:ICHAR_VALID_UNICODEP()
       (or
         (<= 0 ucs #xd7ff)
-        (<= #xe000 ucs #x10ffff)))
-     (utf8-str (ucs->utf8-string ucs)))
-    (iconv-convert "EUC-JP" "UTF-8" utf8-str)))
+        (<= #xe000 ucs #x10ffff))))
+     (ucs->utf8-string ucs)))
 
 ;;; Convert reverse string list to one EUC-JP kanji string
 (define (ja-kanji-code-input str-list)
--- skk-utf8.scm.orig
+++ skk-utf8.scm
@@ -30,7 +30,7 @@
 
 ;; SKK is a Japanese input method
 ;;
-;; EUC-JP
+;; UTF-8
 ;;
 ;; SKKの入力は下記の状態で構成される
 ;; Following is list of SKK input state
@@ -44,7 +44,7 @@
 ;;  漢字コード入力 kcode
 ;;
 ;;
-(require "japanese.scm")
+(require "japanese-utf8.scm")
 (require-custom "generic-key-custom.scm")
 (require-custom "skk-custom.scm")
 (require-custom "skk-key-custom.scm")
@@ -376,19 +376,19 @@
                   (set! skk-set-henkan-point-key '())
 		  skk-ja-rk-rule)
 		 ((= input-rule skk-input-rule-azik)
-		  (require "japanese-azik.scm")
+		  (require "japanese-azik-utf8.scm")
                   (set! skk-okuri-char-alist ja-azik-skk-okuri-char-alist)
                   (set! skk-downcase-alist ja-azik-skk-downcase-alist) 
                   (set! skk-set-henkan-point-key ja-azik-skk-set-henkan-point-key)
 		  ja-azik-rule)
 		 ((= input-rule skk-input-rule-act)
-		  (require "japanese-act.scm")
+		  (require "japanese-act-utf8.scm")
                   (set! skk-okuri-char-alist ja-act-skk-okuri-char-alist)
                   (set! skk-downcase-alist ja-act-skk-downcase-alist)
                   (set! skk-set-henkan-point-key ja-act-skk-set-henkan-point-key)
 		  ja-act-rule)
 		 ((= input-rule skk-input-rule-kzik)
-		  (require "japanese-kzik.scm")
+		  (require "japanese-kzik-utf8.scm")
                   (set! skk-okuri-char-alist '())
                   (set! skk-downcase-alist '())
                   (set! skk-set-henkan-point-key '())
@@ -2327,7 +2327,7 @@
 (register-im
  'skk
  "ja"
- "EUC-JP"
+ "UTF-8"
  skk-im-name-label
  skk-im-short-desc
  #f
--- loader.scm.orig
+++ loader.scm
@@ -13,7 +13,7 @@
   '(
     (skk
      "ja"
-     "EUC-JP"
+     "UTF-8"
      "SKK"
      "uim version of SKK input method"
      "skk")