そのまま、日本語でやってみたらどうなるのでしょうか?
普通に日本語の文字で次のように 実行すると
http://maps.googleapis.com/maps/api/geocode/json?address=東京都千代田区丸の内1丁目9−1&sensor=false
以下の結果が帰ってきましたが、何が問題だったのでしょうか?
json
1{
2 "results" : [
3 {
4 "address_components" : [
5 {
6 "long_name" : "1",
7 "short_name" : "1",
8 "types" : [ "political", "sublocality", "sublocality_level_4" ]
9 },
10 {
11 "long_name" : "9",
12 "short_name" : "9",
13 "types" : [ "political", "sublocality", "sublocality_level_3" ]
14 },
15 {
16 "long_name" : "1丁目",
17 "short_name" : "1丁目",
18 "types" : [ "political", "sublocality", "sublocality_level_2" ]
19 },
20 {
21 "long_name" : "丸の内",
22 "short_name" : "丸の内",
23 "types" : [ "political", "sublocality", "sublocality_level_1" ]
24 },
25 {
26 "long_name" : "千代田区",
27 "short_name" : "千代田区",
28 "types" : [ "locality", "political" ]
29 },
30 {
31 "long_name" : "東京都",
32 "short_name" : "東京都",
33 "types" : [ "administrative_area_level_1", "political" ]
34 },
35 {
36 "long_name" : "日本",
37 "short_name" : "JP",
38 "types" : [ "country", "political" ]
39 },
40 {
41 "long_name" : "100-0005",
42 "short_name" : "100-0005",
43 "types" : [ "postal_code" ]
44 }
45 ],
46 "formatted_address" : "日本, 〒100-0005 東京都千代田区丸の内1丁目9−1",
47 "geometry" : {
48 "location" : {
49 "lat" : 35.6817879,
50 "lng" : 139.7667614
51 },
52 "location_type" : "ROOFTOP",
53 "viewport" : {
54 "northeast" : {
55 "lat" : 35.6831368802915,
56 "lng" : 139.7681103802915
57 },
58 "southwest" : {
59 "lat" : 35.6804389197085,
60 "lng" : 139.7654124197085
61 }
62 }
63 },
64 "place_id" : "ChIJA9-nuv6LGGARdTssyYwzYRs",
65 "types" : [ "political", "sublocality", "sublocality_level_4" ]
66 }
67 ],
68 "status" : "OK"
69}
住所は、東京駅です。