How many patents does Senju Metal Industry Co have in patentsdb?

Senju Metal Industry Co is linked to 490 publications as assignee in our database.

What technology areas does Senju Metal Industry Co patent most?

Top mapped technology areas by patent count: Operations & Transport (464); Chemistry & Metallurgy (333); Electricity (267).

In our data, assignee counts were 44 in 2024 and 33 in 2025 (lower year over year).

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

Senju Metal Industry Co holds 490 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
Operations & Transport	464
Chemistry & Metallurgy	333
Electricity	267
Cross-Sectional Technologies	44
Mechanical Engineering	41
Physics	8
Human Necessities	1

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

How many patents does Senju Metal Industry Co have in patentsdb?: Senju Metal Industry Co is linked to 490 publications as assignee in our database.
What technology areas does Senju Metal Industry Co patent most?: Top mapped technology areas by patent count: Operations & Transport (464); Chemistry & Metallurgy (333); Electricity (267).
Is Senju Metal Industry Co's patent activity growing?: In our data, assignee counts were 44 in 2024 and 33 in 2025 (lower year over year).
What are recent patents assigned to Senju Metal Industry Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.