Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
KS

Koji SHIWAKU

HC Hitachi Construction Machinery Co.: 2 patents #26 of 148Top 20%
📍 Ibaraki, JP: #48 of 437 inventorsTop 15%
Overall (2025): #108,579 of 469,880Top 25%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12331484 Work machine Masamichi Ito, Shinya Kasai 2025-06-17
12331489 Work machine and control system for work machine Shinya Imura 2025-06-17