How many patents does Yamaguchi Koji have in patentsdb?

Yamaguchi Koji is linked to 18 publications as assignee in our database.

What technology areas does Yamaguchi Koji patent most?

Top mapped technology areas by patent count: Operations & Transport (7); Mechanical Engineering (5); Human Necessities (5).

In our data, assignee counts were 1 in 2020 and 1 in 2021 (similar year over year).

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

Yamaguchi Koji holds 18 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	7
Mechanical Engineering	5
Human Necessities	5
Cross-Sectional Technologies	4
Physics	3
Electricity	2
Chemistry & Metallurgy	2

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

How many patents does Yamaguchi Koji have in patentsdb?: Yamaguchi Koji is linked to 18 publications as assignee in our database.
What technology areas does Yamaguchi Koji patent most?: Top mapped technology areas by patent count: Operations & Transport (7); Mechanical Engineering (5); Human Necessities (5).
Is Yamaguchi Koji's patent activity growing?: In our data, assignee counts were 1 in 2020 and 1 in 2021 (similar year over year).
What are recent patents assigned to Yamaguchi Koji?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.