JAPHETH (in Ar. Al-Hasan) AL-BARQAMANI (early 15th century), Karaite author, presumably living in Egypt. His only known work is the Sefer Teshuvah, an Arabic polemical tract against the *Rabbanites, in which he nevertheless mentioned *Maimonides with respect.
S. Pinsker, Likkutei Kadmoniyyot (1860), 181, 192 (second pagination); Fuerst, Karaeertum, 2 (1865), 288f.; A. Neubauer, Aus der Petersburger Bibliothek (1866), 25f.