How many patents does Yamamoto Ryouji have in patentsdb?

Yamamoto Ryouji is linked to 12 publications as assignee in our database.

What technology areas does Yamamoto Ryouji patent most?

Top mapped technology areas by patent count: Electricity (10); Physics (7).

In our data, assignee counts were 1 in 2020 and 1 in 2024 (similar year over year).

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

Yamamoto Ryouji holds 12 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
Electricity	10
Physics	7

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

How many patents does Yamamoto Ryouji have in patentsdb?: Yamamoto Ryouji is linked to 12 publications as assignee in our database.
What technology areas does Yamamoto Ryouji patent most?: Top mapped technology areas by patent count: Electricity (10); Physics (7).
Is Yamamoto Ryouji's patent activity growing?: In our data, assignee counts were 1 in 2020 and 1 in 2024 (similar year over year).
What are recent patents assigned to Yamamoto Ryouji?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.