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USPTO Patent Rankings Data through Sept 30, 2025
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Hiroaki Noguchi — 2 Patents in 2021

NINgk Insulators: 2 patents #51 of 221Top 25%
Overall (2021): #156,601 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10974186 Ceramic porous body and dust collecting filter Rui Horimoto, Mitsuhiro Ito, Akifumi Kawakami, Yuki Jin 2021-04-13
10882796 Ceramic porous body and method for producing the same, and dust collecting filter Shuichi Ichikawa, Akifumi Kawakami, Mitsuhiro Ito 2021-01-05