Hideki Irabu

The death certificate for former New York Yankees pitcher Hideki Irabu has been filed in Los Angeles ... in which his official cause of death is listed as "hanging ... self-inflicted with rope." 42-year-old Irabu was found dead in his California home last month. According to the certificate, the…

Former New York Yankees pitcher Hideki Irabu was found dead yesterday in his California home -- and law enforcement sources tell TMZ, it appears he committed suicide by hanging himself. We're told a friend found him. L.A. County Coroner is still trying to locate next of kin. Hideki played for the…