Naoko Yamaguchi

This inventor holds 6 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 6 EPO patents. Top assignees: Ohki Co., Ltd., Asahi Kasei Fibers Corporation, Shionogi Company Limited. Active years: 2009-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoko Yamaguchi. Retrieved from https://idiyas.com/inventor/naoko-yamaguchi-8jnaani2

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 6 (Patent Applications = 3)

% Patents Active = 83.3

CIPO Patents = 1

EPO Patents = 6 (Patent Applications = 2)

Average Co-Inventor Count = 2.9

ph-index = 3

Forward Citations = 47(Granted Patents)

Company Filing History:

Asahi Kasei Fibers Corporation

patents

1 out of 1,001

Shionogi Company Limited

patents

where one patent can have more than one assignee

Years Active: 2009-2021

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10882688 - Sheet material for extraction, extraction filter, and extraction bag (2021-01-05),

2. 10548427 - Sheet for extraction, extraction filter, and extraction bag (2020-02-04),

3. 9732453 - Nonwoven fabric sheet, and extraction filter and extraction bag using the same (2017-08-15),

4. 9156830 - Heterocyclic compounds (2015-10-13),

5. 8746131 - Drip bag (2014-06-10),

6. 7498281 - Nonwoven fabric and tea bag (2009-03-03),

Profile summary based on public USPTO records.