How many patents does Ehime Prefecture have in patentsdb?

Ehime Prefecture is linked to 5 publications as assignee in our database.

What technology areas does Ehime Prefecture patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (5); Cross-Sectional Technologies (3); Operations & Transport (2).

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

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

Ehime Prefecture holds 5 patents in our database, with recent filings and technology areas summarized below.

Year-over-year patent counts for this assignee.

Filing activity appears stable based on the most recent years.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	5
Cross-Sectional Technologies	3
Operations & Transport	2

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

How many patents does Ehime Prefecture have in patentsdb?: Ehime Prefecture is linked to 5 publications as assignee in our database.
What technology areas does Ehime Prefecture patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (5); Cross-Sectional Technologies (3); Operations & Transport (2).
Is Ehime Prefecture's patent activity growing?: In our data, assignee counts were 1 in 2022 and 1 in 2025 (similar year over year).
What are recent patents assigned to Ehime Prefecture?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.