How many patents does Ihi Corp have in patentsdb?

Ihi Corp is linked to 2,121 publications as assignee in our database.

What technology areas does Ihi Corp patent most?

Top mapped technology areas by patent count: Mechanical Engineering (1,271); Cross-Sectional Technologies (855); Operations & Transport (755).

In our data, assignee counts were 151 in 2024 and 136 in 2025 (lower year over year).

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

Ihi Corp holds 2,121 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
Mechanical Engineering	1,271
Cross-Sectional Technologies	855
Operations & Transport	755
Electricity	458
Chemistry & Metallurgy	344
Physics	280
Fixed Constructions	56
Human Necessities	34
Textiles & Paper	22

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

How many patents does Ihi Corp have in patentsdb?: Ihi Corp is linked to 2,121 publications as assignee in our database.
What technology areas does Ihi Corp patent most?: Top mapped technology areas by patent count: Mechanical Engineering (1,271); Cross-Sectional Technologies (855); Operations & Transport (755).
Is Ihi Corp's patent activity growing?: In our data, assignee counts were 151 in 2024 and 136 in 2025 (lower year over year).
What are recent patents assigned to Ihi Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.