How many patents does Ricoh Co Ltd have in patentsdb?

Ricoh Co Ltd is linked to 218 publications as assignee in our database.

What technology areas does Ricoh Co Ltd patent most?

Top mapped technology areas by patent count: Physics (141); Electricity (113); Operations & Transport (53).

In our data, assignee counts were 1 in 2024 and 1 in 2025 (similar year over year).

See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.

Ricoh Co Ltd holds 218 patents in our database, with recent filings and technology areas summarized below.

Year-over-year patent counts for this assignee.

Filing activity over the last five years is rapidly declining.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Physics	141
Electricity	113
Operations & Transport	53
Cross-Sectional Technologies	8
Human Necessities	5
Textiles & Paper	4
Mechanical Engineering	3
Chemistry & Metallurgy	3

Answers are generated from the same data shown on this page.

How many patents does Ricoh Co Ltd have in patentsdb?: Ricoh Co Ltd is linked to 218 publications as assignee in our database.
What technology areas does Ricoh Co Ltd patent most?: Top mapped technology areas by patent count: Physics (141); Electricity (113); Operations & Transport (53).
Is Ricoh Co Ltd's patent activity growing?: In our data, assignee counts were 1 in 2024 and 1 in 2025 (similar year over year).
What are recent patents assigned to Ricoh Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.