Fabric shops in Tokyo

Hi everyone
We're in Japan at the moment, going to Kinosaki and then Tokyo before heading home.
I know that depatos should be a good starting point, but my question is:
- if I want to buy some lengths of fabric (with typically Japanese patterns), is any one depato particularly good?;

- is there a fabric-selling district in Tokyo, where we might find a few shops together?

Thanks a lot for any help anyone can give.

Nippori is called "fabric town" so you should definitely go there.
Especially the shop called Tomato, it's huge and has a LOT of very beautiful fabrics, japanese and not-japanese style altogether.

https://blackcabbit.files.wordpress.com/2012/02/nippori-street-full.jp...
The main Tomato (there are smaller "side" ones) is 48.

There are more than 60 fabric stores in Nippori, mostly wholesale stores. Therefore, those stores close on Sunday and public holidays, unable to use credit cards, close earlier(17:00 - 18:00, Mon - Fri), close a third of stores on Sat, open until 15:00.
Nippori is a very professional fabric town.
It depends on where you stay in Tokyo, I would recommend you to visit Yuzawa-ya, Shinjuku Takashimaya dept store 11F(South exit).
https://www.takashimaya.co.jp/shinjuku/store_information/index.html
Open:10:00 - 20:00(Mon-Thr & Sun), 10:00 - 20:30(Fri - Sat), credit cards are accepted, despite train fares and time for Nippori.

Okada-ya also locates in Shinjuku central(East side). You can access between Yuzawa-ya and Okada-ya in 15 mins. But Okada-ya locates in a little hidden place(locates near Shinjuku alta).
http://www.okadaya.co.jp/shinjuku/shop.html

Thank you both very much for your great tips.
I am very grateful.

If back to "OSAKA" possible before leaving to Tokyo
"Semba Center Building(船場センタービル/shopping mall)" also famous like Nippori(日暮里).
http://www.semba-center.com/foreign/en.html
http://www.semba-center.com/shop/shop_category/cloth/
Not in similar sound town name "Namba(なんば/難波)" area.
https://goo.gl/maps/4f9T17YdJyv

fabric: 生地(ki-ji) or 布地(nuno-ji)
fabric store: 生地屋(ki-ji-ya) add "-さん(-san)" usual as talking friendly
sewing store(parts/tools): 手芸屋(syu-gei-ya) -さん(-san) also usual
Japanese patterns: 和柄(wa-gara) or 和風(wa-fuu) using not only for fabric/clothes
This "和(wa)" means Japan/Japanese maybe you seen
"和服/和装(wa-fuku/wa-sou mainly 着物/Kimono)","和牛(wa-guu/Japan beef)" or.

Hi

English map of Nippori that Jennifer's was introduced.
http://goope.akamaized.net/12044/150320004854-550aefe66d922.pdf
http://goope.akamaized.net/12044/150320004937-550af011e98a2.pdf

Fantastic!! Thanks a lot for the maps. They'll be really useful.

Thanks again to everyone who's helped us with this query.
I have a very happy wife, who bought loads of really nice fabric and has promised to make something for me.