ALEXANDRIA, Va., Dec. 16 -- United States Patent no. D1,106,402, issued on Dec. 16, was assigned to NIDEC Corp. (Kyoto, Japan).
"Plug of pipe joint" was invented by Naoyuki Takashima (Kyoto, Japan), Takehito Tamaoka (Kyoto, Japan) and Toshihiko Tokeshi (Kyoto, Japan).
The patent was filed on July 1, 2025, under Application No. D/011,130.
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