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

Hiroyuki Sugiyama

Ricoh Company: 1 patents #173 of 689Top 30%
📍 Yokohama, JP: #103 of 182 inventorsTop 60%
Overall (2025): #368,150 of 469,880Top 80%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12346060 Developing device, process cartridge, and image forming apparatus Taira Otsuka, Hiroshi Hosokawa, Kazuki Matsumoto 2025-07-01