How many patents does Hamaguchi Masaya have in patentsdb?

Hamaguchi Masaya is linked to 16 publications as assignee in our database.

What technology areas does Hamaguchi Masaya patent most?

Top mapped technology areas by patent count: Operations & Transport (15); Chemistry & Metallurgy (3); Mechanical Engineering (2).

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.

Hamaguchi Masaya holds 16 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.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Operations & Transport	15
Chemistry & Metallurgy	3
Mechanical Engineering	2
Electricity	2
Cross-Sectional Technologies	2
Physics	1

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

How many patents does Hamaguchi Masaya have in patentsdb?: Hamaguchi Masaya is linked to 16 publications as assignee in our database.
What technology areas does Hamaguchi Masaya patent most?: Top mapped technology areas by patent count: Operations & Transport (15); Chemistry & Metallurgy (3); Mechanical Engineering (2).
Is Hamaguchi Masaya'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 Hamaguchi Masaya?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.