On all the covers of his works prior to dx issue 2013-08 shows 原茂之. Then in 2013-10, with chapter two of his latest work, it became 原シゲオ. And Manga updates list him as Hara Shigeyuki. This problem came up before for the dx issue in 2013-10. Freudia and Msimms discussed it. And it is clearly his work. I do not know why Katakana is used But the more familiar translation into romanji needs to be used to prevent confusion.