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Keitaro Yamamoto

USPTO Granted Patents = 4

EPO Patents = 1

Average Co-Inventor Count = 3.8

ph-index = 3

Forward Citations = 221(Granted Patents)

Company Filing History:

Nakashima Propeller Co., Ltd.

Keio University

Nakashima Healthforce Co., Ltd.

4. 2 out of 832,880

Other

patents

where one patent can have more than one assignee

Years Active: 2007-2025

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12471931 - Tibial resection assisting device (2025-11-18),

2. 8100980 - Artificial elbow joint (2012-01-24),

3. 7678152 - Artificial knee joint (2010-03-16),

4. 7264635 - Artificial knee joint (2007-09-04),

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