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USPTO Patent Rankings Data through Sept 30, 2025
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Hirai Engineering — 5 Patents

Rank (All Time): #102,865 of 106,127Top 100%
3 inventors
5 Patents All Time

Top Inventors at Hirai Engineering All Time

Showing 1–3 of 3 inventors

RankNamePatents
1 Takashi Hirai 5
2 Keisuke Hirai 3
3 Yoshio Kaneko 2

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