Here is the weekly manga sales ranking top 30 for Jan Feb 2nd - 8th.

Rank/ Two-week total sales/ Total sales/ Title
*1, 710,879 710,879 Naruto vol.45
*2, 607,616 607,616 Bleach vol.37
*3, 358,632 358,632 Katekyo Hitman Reborn! vol.23
*4, 306,488 306,488 Gintama vol.27
*5, 174,965 174,965 Worst vol.22
*6, 116,789 116,789 Toriko vol.3
*7, 100,466 460,169 Kuroshitsuji vol.6
*8, *88,069 *88,069 Pyuu to Fuku! Jaguar vol.16
*9, *79,117 419,297 Glass Mask vol.43
10, *74,559 *74,559 Rosario+Vampire II vol.3

11, *74,178 *74,178 Letter Bee vol.6
12, *61,810 *61,810 Grappler Baki - Son of Ogre vol.17
13, *61,297 *61,297 Kochira Katsushika-ku Kamearikouen-mae Hashutsujo vol.163
14, *61,167 *61,167 Shiki vol.4
15, *55,315 *55,315 Majin Tantei Nougami Neuro vol.20
16, *52,853 *52,853 Bartender vol.13
17, *52,492 *94,979 Channel wa Sonomama! vol.1
18, *39,544 *39,544 Shaman King vol.24 Complete Edition
19, *37,181 *37,181 Harukanaru Toki no Naka de vol.4
20, *35,546 *35,546 Shaman King vol.23 Complete Edition

21, *33,400 *74,566 Oyasumi Punpun vol.4
22, *30,618 *30,618 Saint Seiya Next Dimension vol.1
23, *28,503 *28,503 Ohsama no Shitateya vol.21
24, *26,819 176,653 Mobile Suite Gundam-san vol.4
25, *24,893 *24,893 Himeanor vol.2
26, *24,669 *24,669 Sugar☆Family vol.5
27, *21,283 *51,281 Bokurano vol.10
28, *21,117 286,091 20th Century Boys vol.1
29, *20,488 *20,488 Warau ka no Kosama vol.2
30, *20,374 160,141 Mei-chan no Shitsuji vol.7

Additional info: Ninomiya Tomoko came back from the child-care leave and the publication of "Nodame Cantabile" will be resumed on March 10th.

Source: Ninomiya's blog

Last week's ranking: Japan's Weekly Manga Ranking For Jan 26 - Feb 1
Source: Oricon Comic Ranking