How many patents does Hitachi Power Solutions Co Ltd have in patentsdb?

Hitachi Power Solutions Co Ltd is linked to 86 publications as assignee in our database.

What technology areas does Hitachi Power Solutions Co Ltd patent most?

Top mapped technology areas by patent count: Physics (45); Electricity (29); Operations & Transport (23).

In our data, assignee counts were 8 in 2024 and 7 in 2025 (lower year over year).

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

Hitachi Power Solutions Co Ltd holds 86 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 growing.

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	45
Electricity	29
Operations & Transport	23
Cross-Sectional Technologies	15
Mechanical Engineering	6
Human Necessities	3
Chemistry & Metallurgy	3

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

How many patents does Hitachi Power Solutions Co Ltd have in patentsdb?: Hitachi Power Solutions Co Ltd is linked to 86 publications as assignee in our database.
What technology areas does Hitachi Power Solutions Co Ltd patent most?: Top mapped technology areas by patent count: Physics (45); Electricity (29); Operations & Transport (23).
Is Hitachi Power Solutions Co Ltd's patent activity growing?: In our data, assignee counts were 8 in 2024 and 7 in 2025 (lower year over year).
What are recent patents assigned to Hitachi Power Solutions Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.