How many patents does Nippon Steel Corp have in patentsdb?

Nippon Steel Corp is linked to 2,890 publications as assignee in our database.

What technology areas does Nippon Steel Corp patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (2,032); Operations & Transport (1,648); Cross-Sectional Technologies (697).

In our data, assignee counts were 465 in 2024 and 425 in 2025 (lower year over year).

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

Nippon Steel Corp holds 2,890 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 stable.

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	2,032
Operations & Transport	1,648
Cross-Sectional Technologies	697
Electricity	596
Mechanical Engineering	427
Fixed Constructions	156
Physics	128
Human Necessities	4
Textiles & Paper	4

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

How many patents does Nippon Steel Corp have in patentsdb?: Nippon Steel Corp is linked to 2,890 publications as assignee in our database.
What technology areas does Nippon Steel Corp patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (2,032); Operations & Transport (1,648); Cross-Sectional Technologies (697).
Is Nippon Steel Corp's patent activity growing?: In our data, assignee counts were 465 in 2024 and 425 in 2025 (lower year over year).
What are recent patents assigned to Nippon Steel Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.