Kamikawa became the first Asian referee to officiate a Russian Premier League match when he refereed a match between Luch-Energia Vladivostok and Spartak Moscow on August 20, 2006 in Vladivostok.
Kamikawa menjadi wasit Asia pertama yang memimpin pertandingan Liga Premier Rusia ketika ia wasit pertandingan antara Luch - Energia Vladivostok dan Spartak Moscow pada tanggal 20 Agustus 2006 di Vladivostok .