How many patents does H One Co Ltd have in patentsdb?

H One Co Ltd is linked to 6 publications as assignee in our database.

What technology areas does H One Co Ltd patent most?

Top mapped technology areas by patent count: Operations & Transport (6); Mechanical Engineering (1).

In our data, assignee counts were 2 in 2023 and 1 in 2025 (lower year over year).

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

H One Co Ltd holds 6 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.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Operations & Transport	6
Mechanical Engineering	1

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

How many patents does H One Co Ltd have in patentsdb?: H One Co Ltd is linked to 6 publications as assignee in our database.
What technology areas does H One Co Ltd patent most?: Top mapped technology areas by patent count: Operations & Transport (6); Mechanical Engineering (1).
Is H One Co Ltd's patent activity growing?: In our data, assignee counts were 2 in 2023 and 1 in 2025 (lower year over year).
What are recent patents assigned to H One Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.