(b.1970) Nihon Ki-in female pro, 4 dan in 1996. Nee Abe.
Gobase page http://gobase.org/information/players/?pp=Abe%20Yumiko.
Nihon Ki-in page, with photo http://www.nihonkiin.or.jp/player/htm/ki000293.htm.
As online teacher http://www.pandanet.co.jp/lessongo/index_e.htm.