% Expired Patents = 25.0

EPO Patents = 1

Forward Citations = 1

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12 inventors (with patents filed for the assignee):

Takumi Kojima (2 out of 2 patents)

Osamu Yamaguchi (2 out of 8 patents)

Kouichi Ozamoto (1 out of 1 patent)

4. Kento Nakamura (1 out of 1 patent)

5. Isamu Futase (1 out of 1 patent)

6. Daisuke Endo (1 out of 1 patent)

7. Yozo Higuchi (1 out of 1 patent)

8. Shinichi Tokudome (1 out of 1 patent)

9. Kazuki Kanari (1 out of 1 patent)

10. Yoshiichi Masuda (1 out of 1 patent)

11. Ryota Mineo (1 out of 4 patents)

12. Hisato Nishihara (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 12157078 - Depth filter (2024-12-03),

2. 11141686 - Backwashable depth filter (2021-10-12),

3. 10765978 - Filter (2020-09-08),

4. 10130914 - Pleat cartridge filter (2018-11-20),

Company Overview

Jnc Filter Co., Ltd. is a leading manufacturer and supplier of high-quality industrial filtration products. With over 20 years of experience in the industry, we specialize in producing a wide range of filters for various applications, including automotive, aerospace, and water treatment. Our products are known for their reliable performance and durability, making us a trusted partner for companies worldwide. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#808 in Osaka

#7,573 in Japan

Osaka, Japan

Jnc Filter Co., Ltd.

Forward Citations = 1

12 inventors:

Takumi Kojima (2 out of 2 patents)

Osamu Yamaguchi (2 out of 8 patents)

Kouichi Ozamoto (1 out of 1 patent)

4. Kento Nakamura (1 out of 1 patent)

5. Isamu Futase (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jnc Filter Co., Ltd.. Retrieved from https://idiyas.com/company/jnc-filter-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]

1 patent (EPO):

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]