wikipedia link

See also:
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Igezara ware
Arita, Japan

Igezara means "thorn plate", referring to the spiked brown pie crust rim around the edges. These were heavy utilitarian pieces, sometimes still used at restaurants today. Most Igezara ware pieces didn't have maker's marks, but some did, and judging by the maker's (including Koransha and Yamatoku) they seemed to all be from Arita.  Igezara ware was usually decorated with blue and white transferware or stenciled designs, but occasionally some pieces were decorated with additional overglaze painted colors in an Imari ware style.  I've read that Igezara ware plates were made between 1880 - 1910, though I've also heard a later timeframe of the late Meiji Period through the early Showa Period (so, the early 1900s).  Sometimes they would have stilt marks on the base.
modernjapanesepotterymarks.blogspot.com/2015/09/igezara-pie-crust-plates.html

Unmarked Igezara ware

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Yamatoku ​山徳
​ヤマトク

ヤマトク read top to bottom, right to left (as was common prior to WWII)

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Uwataki 上瀧
​ウワタキ

ウワタキ read top to bottom, right to left (as was common prior to WWII)

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Transfer ware

Transfer ware

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​Fukagaya sei 深萱製大日本

​Fukagaya sei 深萱製大日本