How many patents does Yamada Tatsumi have in patentsdb?

Yamada Tatsumi is linked to 10 publications as assignee in our database.

What technology areas does Yamada Tatsumi patent most?

Top mapped technology areas by patent count: Physics (8); Operations & Transport (2).

In our data, assignee counts were 2 in 2022 and 1 in 2025 (lower year over year).

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

Yamada Tatsumi holds 10 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 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	8
Operations & Transport	2

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

How many patents does Yamada Tatsumi have in patentsdb?: Yamada Tatsumi is linked to 10 publications as assignee in our database.
What technology areas does Yamada Tatsumi patent most?: Top mapped technology areas by patent count: Physics (8); Operations & Transport (2).
Is Yamada Tatsumi's patent activity growing?: In our data, assignee counts were 2 in 2022 and 1 in 2025 (lower year over year).
What are recent patents assigned to Yamada Tatsumi?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.