Koichi Takasugi

This inventor holds 4 USPTO granted patents and 5 published patent applications and 1 EPO patent. Top assignees: Nippon Telegraph and Telephone Corporation, Ntt Corporation. Active years: 2013-2026.

USPTO Granted Patents = 4 (Patent Applications = 5)

% Patents Active = 100.0

EPO Patents = 1 (Patent Applications = 4)

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 9(Granted Patents)

Company Filing History:

2 out of 5,300

Nippon Telegraph and Telephone Corporation

Years Active: 2013-2026

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12676822 - Communication system, intermediate device, communication method, and program (2026-07-07),

2. 12676741 - Key exchange system, hub apparatus, QKD apparatus, method, and program (2026-07-07),

3. 8848912 - Terminal identification method, authentication method, authentication system, server, terminal, wireless base station, program, and recording medium (2014-09-30),

4. 8533472 - Terminal identification method, authentication method, authentication system, server, terminal, wireless base station, program, and recording medium (2013-09-10),

Profile summary based on public USPTO records.

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5 patents pending:

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1 patent (EPO):

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4 patents pending (EPO):

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