How many patents does Toyo Aluminium Kk have in patentsdb?

Toyo Aluminium Kk is linked to 133 publications as assignee in our database.

What technology areas does Toyo Aluminium Kk patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (96); Operations & Transport (67); Electricity (60).

In our data, assignee counts were 13 in 2024 and 6 in 2025 (lower year over year).

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

Toyo Aluminium Kk holds 133 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.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	96
Operations & Transport	67
Electricity	60
Cross-Sectional Technologies	48
Human Necessities	11
Physics	6
Fixed Constructions	4
Mechanical Engineering	2

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

How many patents does Toyo Aluminium Kk have in patentsdb?: Toyo Aluminium Kk is linked to 133 publications as assignee in our database.
What technology areas does Toyo Aluminium Kk patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (96); Operations & Transport (67); Electricity (60).
Is Toyo Aluminium Kk's patent activity growing?: In our data, assignee counts were 13 in 2024 and 6 in 2025 (lower year over year).
What are recent patents assigned to Toyo Aluminium Kk?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.