Kashiwa took the lead after just four minutes when forward Masato Kudo latched onto Tanaka's header, cut into the box and fired home from the right side for the opener.

The hosts attempted to rally but Kashiwa extended their lead in the 58th minute when Wagner blasted home from mid-range.

Tanaka converted Hidekazu Otani's pass to make it 3-0 in the 74th minute before Park Dong-hyuk headed home a Wagner pass three minutes later.

Meanwhile, Ventforet Kofu boosted their survival hopes with a 2-1 triumph over bottom side Avispa Fukuoka.

Kofu forward Mike Havenaar put the hosts ahead after four minutes in slotting home from outside the box before earning a penalty that Brazilian midfielder Paulinho converted in the 28th minute.

Fukuoka halved the deficit with Hideya Okamoto's strike two minutes after the break but could not find the equaliser they needed.

Kawasaki Frontale won for the first time in nine games with a 1-0 triumph over Montedio Yamagata thanks to Yu Kobayashi's goal in the 53rd minute.

Vegalta Sendai beat Albirex Niigata 2-0 at home, Shingo Akamine and Ryang Yong-gi's penalty sealing the points, while Shimizu S-Pulse edged out Urawa Reds 1-0 after Genki Omae struck in the 63rd minute.

Hiroshima forward Tadanari Lee scored twice while strike partner Hisato Sato converted a penalty in Sanfrecce Hiroshima's 3-1 win over visiting Jubilo Iwata.

Lee opened the scoring in the third minute before Sato scored from the spot in the 20th minute for the hosts. Jubilo and Japan forward Ryoichi Maeda pulled a goal back five minutes later but Lee grabbed his second and Sanfrecce's third in the 57th minute.