How many patents does Nishikawa Rubber Co Ltd have in patentsdb?

Nishikawa Rubber Co Ltd is linked to 251 publications as assignee in our database.

What technology areas does Nishikawa Rubber Co Ltd patent most?

Top mapped technology areas by patent count: Operations & Transport (250); Fixed Constructions (62); Physics (26).

In our data, assignee counts were 17 in 2024 and 14 in 2025 (lower year over year).

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

Nishikawa Rubber Co Ltd holds 251 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	250
Fixed Constructions	62
Physics	26
Electricity	16
Mechanical Engineering	13
Cross-Sectional Technologies	7
Chemistry & Metallurgy	6

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

How many patents does Nishikawa Rubber Co Ltd have in patentsdb?: Nishikawa Rubber Co Ltd is linked to 251 publications as assignee in our database.
What technology areas does Nishikawa Rubber Co Ltd patent most?: Top mapped technology areas by patent count: Operations & Transport (250); Fixed Constructions (62); Physics (26).
Is Nishikawa Rubber Co Ltd's patent activity growing?: In our data, assignee counts were 17 in 2024 and 14 in 2025 (lower year over year).
What are recent patents assigned to Nishikawa Rubber Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.