Tashiro Miku won the women's under-63kg title ©IJF

Tashiro Miku overcame Olympic champion Tina Trstenjak in the women’s under-63 kilogram final as Japanese success continued on the second day of the International Judo Federation (IJF) Grand Slam in Düsseldorf.

The Japanese team secured a hat-trick of gold medals at the ISS Dome in the German city yesterday, with a further three coming today.

Miku advanced to the women’s under-63kg final contest courtesy of a triumph over Austria’s Kathrin Unterwurzacher via an ippon score.

She repeated the feat against Trstenjak in the final by pinning the reigning Olympic champion to seal victory.

Unterwurzacher was unable to bounce back from her semi-final defeat as the Austrian was beaten by Cuba’s Maylin Del Toro Carvajal in the first bronze-medal bout.

Mongolia’s Gankhaich Bold completed the podium positions by beating France’s Manon Deketer.

Japan’s Chizuru Arai, a two-times women’s under-70kg world champion, was also among the winners in Düsseldorf.

Arai overcame Belgium’s Gabriella Willems in the final by forcing a single waza-ari score after a close contest.

The home crowd were able to celebrate a bronze medal for Giovanna Scoccimarro when she overcame South Korea’s Kim Seong-yeon with an ippon score.

France’s Margaux Pinot secured the second bronze in the division by beating Spain’s Ai Tsunoda Roustant.

A third Japanese title was secured by reigning world champion Shohei Ono as he beat South Korea’s An Chang-rim through a waza-ari score in the men’s under-73kg final.

An ippon saw Mongolia’s Tsogtbaatar Tsend-Ochir win the first bronze at the expense of Sweden’s Tommy Macias, before Azerbaijan’s Rustam Orujov beat Slovenia’s Martin Hojak with a waza-ari.

The focus was on Mongolia's Saeid Mollaei in the men’s under-81kg event, after he defected from Iran after last year’s World Championships in Tokyo.

Mollaei claimed he had been threatened, with Iranian officials allegedly instructing him to lose at the Championships to avoid facing Israel's Sagi Muki.

The incident has led to the suspension of the Iranian Judo Federation.

Mollaei’s bid for victory in Düsseldorf was ended in his fourth bout by Russia’s Olympic champion Khasan Khalmurzaev, while he also lost a repechage contest to miss out on a potential bronze medal.

Khalmurzaev advanced through to the gold-medal bout, but was shocked as Georgia’s Tato Grigalashvili achieved a waza-ari score to win the event.

Bronze medals were earned by The Netherlands’ Frank De Wit and Sweden’s Robin Pacek, after they overcame Kyrgyzstan’s Vladimir Zoloev and Germany’s Dominic Ressel in their respective bouts.

The final five medal events will take place tomorrow.

Watch all the action on Judo TV.