Nippon Muki Co., Ltd.

Calculating rank

USPTO Granted Patents = 4

EPO Patents = 6

Trademarks = 1

Forward Citations = 24

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12 inventors (with patents filed for the assignee):

Hitoshi Niinuma (2 out of 8 patents)

Shiro Hayashi (2 out of 2 patents)

Michihiro Hiroto (1 out of 1 patent)

4. Kazuhiro Sugimoto (1 out of 1 patent)

5. Jun Morita (1 out of 2 patents)

6. Osamu Kitayama (1 out of 2 patents)

7. Norikazu Shinya (1 out of 1 patent)

8. Tomoyuki Hasegawa (1 out of 1 patent)

9. Katsuhiro Ohno (1 out of 1 patent)

10. Fumio Nakajima (1 out of 1 patent)

11. Hirokazu Izumiya (1 out of 1 patent)

12. Osamu Kitagawa (1 out of 1 patent)

13. Kazuya Seki (3 patents)

14. Takeki Yamaguchi (1 patent)

4 patents: Sort by Forward Citations

1. 12157085 - Filter pack and air filter (2024-12-03),

2. 9393513 - Air filter unit (2016-07-19),

3. 8597393 - Pleated air filter pack and air filter using same (2013-12-03),

4. 6540805 - High-performance filter for intake air for gas turbine, and filter unit using such filter for intake air for gas turbine (2003-04-01),

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USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#65 in Ibaraki

#7,590 in Japan

Ibaraki, Japan

Nippon Muki Co., Ltd.

Forward Citations = 24

12 inventors:

Hitoshi Niinuma (2 out of 8 patents)

Shiro Hayashi (2 out of 2 patents)

Michihiro Hiroto (1 out of 1 patent)

4. Kazuhiro Sugimoto (1 out of 1 patent)

5. Jun Morita (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Muki Co., Ltd.. Retrieved from https://idiyas.com/company/nippon-muki-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]

6 patents (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]