ALEXANDRIA, Va., June 25 -- United States Patent no. D1,080,853, issued on June 24, was assigned to NIPPON ELECTRODE Co. LTD. (Shizuoka, Japan).

"Heat-resistant tube for vertical heat treatment equipment" was invented by Hironaga Suzuki (Shizuoka Pref., Japan), Yuichi Kaba (Shizuoka Pref., Japan), Shinjiro Toda (Shizuoka Pref., Japan), Takayuki Yatsu (Shizuoka Pref., Japan), Satoshi Mitamura (Shizuoka Pref., Japan), Fusataka Isobe (Shizuoka Pref., Japan) and Masayoshi Sakurai (Shizuoka Pref., Japan).

The patent was filed on Dec. 12, 2023, under Application No. D/920,719.

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