ALEXANDRIA, Va., July 16 -- United States Patent no. D1,084,231, issued on July 15, was assigned to MATSUIKIKI INDUSTRIES Co. LTD. (Nagahama, Japan).
"Isolation valve" was invented by Sadanori Matsui (Nagahama, Japan), Takashi Kitagawa (Nagahama, Japan), Yukikazu Terada (Nagahama, Japan) and Hisashi Onoue (Nagahama, Japan).
The patent was filed on Nov. 25, 2022, under Application No. D/861,033.
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