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For the Inventor, By the Inventor

Kawaguchi, Japan

Metran Co., Ltd.

Calculating rank
USPTO Granted Patents = 15

% Expired Patents = 26.7


Trademarks = 1

Forward Citations = 26

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6 inventors (with patents filed for the assignee):

goldMedal Kazufuku Nitta (14 out of 17 patents)

silverMedal Shinichi Shiota (3 out of 3 patents)

bronzeMedal Masashi Higashiura (1 out of 1 patent)

4.  Jun Nitta (1 out of 1 patent)

5.  Shinichi Nakane (1 out of 7 patents)

6.  Tran Ngoc Phuc (1 out of 1 patent)

7.  Dan Nitta (0 patent)

8.  Nitta Kazufuku (0 patent)


15 patents:

1. 12115310 - Respiratory assistance device and respiratory assistance method (2024-10-15),
2. 11464927 - Respiratory assistance device (2022-10-11),
3. 11305089 - Humidifier and respiratory assistance device (2022-04-19),
4. 11305080 - Respiratory assistance device and respiratory assistance method (2022-04-19),
5. 11247007 - Silencer and artificial ventilator (2022-02-15),
6. 11173264 - Respiratory assistance program and respiratory assistance device (2021-11-16),
7. 10974011 - Filter structure (2021-04-13),
8. 10036377 - Pump unit and respiratory assistance device (2018-07-31),
9. 10022515 - Exhalation valve and respiratory assistance device (2018-07-17),
10. D822193 - Blower casing for respiratory assistance device (2018-07-03),
11. 9821136 - Opening and closing device and respiratory assistance device (2017-11-21),
12. 9623203 - Respiratory assistance device with blower placed above the mouth of a user (2017-04-18),
13. 9408991 - Pump unit and breathing assistance device (2016-08-09),
14. 8500879 - Oxygen concentrator (2013-08-06),
15. 8146590 - Humidification system for breathing circuit (2012-04-03),
Company Overview
Metran Co., Ltd. is a Japanese company specializing in the development and manufacturing of advanced medical devices and healthcare solutions. With a strong focus on innovation, Metran is dedicated to enhancing patient care through its cutting-edge technologies, particularly in the fields of respiratory care and monitoring systems. The company operates primarily in the healthcare sector, contributing to improved medical practices and outcomes in various clinical environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Metran Co., Ltd. USPTO Patent Assignee Logo
15 Patents

#2 in Kawaguchi

#3,448 in Japan

#39,991 in the World

Kawaguchi, JP
Kawaguchi, Japan

Metran Co., Ltd.

Forward Citations = 26

6 inventors:

goldMedal Kazufuku Nitta (14 out of 17 patents)

silverMedal Shinichi Shiota (3 out of 3 patents)

bronzeMedal Masashi Higashiura (1 out of 1 patent)

4.  Jun Nitta (1 out of 1 patent)

5.  Shinichi Nakane (1 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Metran Co., Ltd.. Retrieved from https://idiyas.com/company/metran-company

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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