Risa Hashimoto

This inventor holds 3 USPTO granted patents and 6 published patent applications and 1 EPO patent. Top assignee: Toppan Holdings Inc.. Active years: 2026.

USPTO Granted Patents = 3 (Patent Applications = 6)

% Patents Active = 33.3

EPO Patents = 1 (Patent Applications = 7)

Average Co-Inventor Count = 6.0

ph-index = 1

Company Filing History:

3 out of 44

Toppan Holdings Inc.

patents

Years Active: 2026

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12735592 - Inkjet ink for tablet and tablet printed matter (2026-09-15),

2. 12733661 - Inkjet ink and tablet printed matter (2026-09-15),

3. 12655312 - Inkjet ink and tablet printed matter (2026-06-16),

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6 patents pending:

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1 patent (EPO):

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7 patents pending (EPO):

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