From National Archives
Registers of Jewish Religious Communities from 1784 to 1949
In 2011, all volumes of registries of Jewish religious communities housed in the National Archives were digitized. In the course of this year, they will be made available in parts on VadeMeCum.nacr.cz. First, it will be the volumes from the fonds “Registers of Jewish Religious Communities in the Czech Lands” (HBMa), for publication of which the original inventory was used after its editing.
I had a look and found some Ivanovice records, but not being a Czech speaker found it quite difficult to navigate the site to find the later records. I did manage to get on to the pre 1850 births and found an earlier Herman Hirsch born 1830.
You may be more successful

Please let me know if you find records for Friedrich b. 1892.