How many patents does Watanabe Kazuhiko have in patentsdb?

Watanabe Kazuhiko is linked to 38 publications as assignee in our database.

What technology areas does Watanabe Kazuhiko patent most?

Top mapped technology areas by patent count: Physics (35); Operations & Transport (6); Electricity (1).

In our data, assignee counts were 1 in 2024 and 2 in 2025 (higher year over year).

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

Watanabe Kazuhiko holds 38 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
Physics	35
Operations & Transport	6
Electricity	1
Cross-Sectional Technologies	1

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

How many patents does Watanabe Kazuhiko have in patentsdb?: Watanabe Kazuhiko is linked to 38 publications as assignee in our database.
What technology areas does Watanabe Kazuhiko patent most?: Top mapped technology areas by patent count: Physics (35); Operations & Transport (6); Electricity (1).
Is Watanabe Kazuhiko's patent activity growing?: In our data, assignee counts were 1 in 2024 and 2 in 2025 (higher year over year).
What are recent patents assigned to Watanabe Kazuhiko?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.