SK

Seiya Katou

HC Hitachi Construction Machinery Co.: 2 patents #33 of 155Top 25%
Overall (2021): #114,446 of 548,734Top 25%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11199856 Safe operation assistance device, fleet management terminal, and safe operation assistance system Takeshi Ito, Hiroshi Watanabe 2021-12-14
10967789 Safe driving assistance device Hiroshi Watanabe, Takeshi Ito 2021-04-06