How many patents does Dai Ichi Seiko Co Ltd have in patentsdb?

Dai Ichi Seiko Co Ltd is linked to 288 publications as assignee in our database.

What technology areas does Dai Ichi Seiko Co Ltd patent most?

Top mapped technology areas by patent count: Electricity (222); Cross-Sectional Technologies (19); Operations & Transport (17).

In our data, assignee counts were 3 in 2023 and 2 in 2025 (lower year over year).

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

Dai Ichi Seiko Co Ltd holds 288 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
Electricity	222
Cross-Sectional Technologies	19
Operations & Transport	17
Physics	16
Mechanical Engineering	2

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

How many patents does Dai Ichi Seiko Co Ltd have in patentsdb?: Dai Ichi Seiko Co Ltd is linked to 288 publications as assignee in our database.
What technology areas does Dai Ichi Seiko Co Ltd patent most?: Top mapped technology areas by patent count: Electricity (222); Cross-Sectional Technologies (19); Operations & Transport (17).
Is Dai Ichi Seiko Co Ltd's patent activity growing?: In our data, assignee counts were 3 in 2023 and 2 in 2025 (lower year over year).
What are recent patents assigned to Dai Ichi Seiko Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.