How many patents does Ykk Corp have in patentsdb?

Ykk Corp is linked to 825 publications as assignee in our database.

What technology areas does Ykk Corp patent most?

Top mapped technology areas by patent count: Human Necessities (715); Operations & Transport (267); Cross-Sectional Technologies (235).

In our data, assignee counts were 57 in 2024 and 78 in 2025 (higher year over year).

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

Ykk Corp holds 825 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
Human Necessities	715
Operations & Transport	267
Cross-Sectional Technologies	235
Chemistry & Metallurgy	67
Mechanical Engineering	58
Textiles & Paper	56
Physics	13
Fixed Constructions	9
Electricity	4

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

How many patents does Ykk Corp have in patentsdb?: Ykk Corp is linked to 825 publications as assignee in our database.
What technology areas does Ykk Corp patent most?: Top mapped technology areas by patent count: Human Necessities (715); Operations & Transport (267); Cross-Sectional Technologies (235).
Is Ykk Corp's patent activity growing?: In our data, assignee counts were 57 in 2024 and 78 in 2025 (higher year over year).
What are recent patents assigned to Ykk Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.