How many patents does Mitsubishi Pencil Co have in patentsdb?

Mitsubishi Pencil Co is linked to 348 publications as assignee in our database.

What technology areas does Mitsubishi Pencil Co patent most?

Top mapped technology areas by patent count: Operations & Transport (187); Chemistry & Metallurgy (112); Human Necessities (91).

In our data, assignee counts were 43 in 2024 and 42 in 2025 (lower year over year).

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

Mitsubishi Pencil Co holds 348 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.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Operations & Transport	187
Chemistry & Metallurgy	112
Human Necessities	91
Physics	30
Electricity	10
Cross-Sectional Technologies	7
Textiles & Paper	2

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

How many patents does Mitsubishi Pencil Co have in patentsdb?: Mitsubishi Pencil Co is linked to 348 publications as assignee in our database.
What technology areas does Mitsubishi Pencil Co patent most?: Top mapped technology areas by patent count: Operations & Transport (187); Chemistry & Metallurgy (112); Human Necessities (91).
Is Mitsubishi Pencil Co's patent activity growing?: In our data, assignee counts were 43 in 2024 and 42 in 2025 (lower year over year).
What are recent patents assigned to Mitsubishi Pencil Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.