How many patents does Toyo Tanso Co have in patentsdb?

Toyo Tanso Co is linked to 114 publications as assignee in our database.

What technology areas does Toyo Tanso Co patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (91); Electricity (71); Cross-Sectional Technologies (47).

In our data, assignee counts were 3 in 2024 and 1 in 2025 (lower year over year).

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

Toyo Tanso Co holds 114 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 rapidly 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	91
Electricity	71
Cross-Sectional Technologies	47
Operations & Transport	31
Mechanical Engineering	18
Physics	5
Textiles & Paper	4

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

How many patents does Toyo Tanso Co have in patentsdb?: Toyo Tanso Co is linked to 114 publications as assignee in our database.
What technology areas does Toyo Tanso Co patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (91); Electricity (71); Cross-Sectional Technologies (47).
Is Toyo Tanso Co's patent activity growing?: In our data, assignee counts were 3 in 2024 and 1 in 2025 (lower year over year).
What are recent patents assigned to Toyo Tanso Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.