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For the Inventor, By the Inventor

Tokyo, Japan

Nikki-Universal Co., Ltd.


USPTO Granted Patents = 24

% Expired Patents = 8.3



Trademarks = 2

Forward Citations = 118

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34 inventors (with patents filed for the assignee):

goldMedal Yoshiki Nakano (7 out of 8 patents)

silverMedal Masaru Tatsushima (6 out of 8 patents)

bronzeMedal Makoto Sakura (6 out of 6 patents)

4.  Eiki Iida (6 out of 6 patents)

5.  Toshio Hashimoto (6 out of 6 patents)

6.  Shizuo Takumi (6 out of 6 patents)

7.  Norio Inoue (5 out of 5 patents)

8.  Kazuro Isomae (4 out of 4 patents)

9.  Takanobu Sakurai (3 out of 3 patents)

10.  Koji Hara (3 out of 22 patents)

11.  Takashi Aihara (3 out of 15 patents)

12.  Mikiko Gokano (3 out of 3 patents)

13.  Toshiya Nashida (3 out of 3 patents)

14.  Hideyuki Yunoki (3 out of 3 patents)

15.  Tomoo Ikoma (2 out of 2 patents)


24 patents:

1. 12494492 - Supported metal catalyst, method for producing same, and method for producing carrier (2025-12-09),
2. 12128339 - Filtering material for air filters and method for manufacturing filtering material for air filters (2024-10-29),
3. 11911747 - Catalyst for ammonia decomposition and exhaust gas treatment method (2024-02-27),
4. 11642660 - Purification catalyst for interior of polymer film production furnace and purification method for interior of polymer film production furnace (2023-05-09),
5. 8883667 - Purification catalyst for reflow furnace gas, method for preventing contamination of reflow furnace, and reflow furnace (2014-11-11),
6. 8575054 - Catalyst for purifying organic nitrogen compound-containing exhaust gas and method for purifying the exhaust gas (2013-11-05),
7. 7727923 - Catalyst for exhaust gas purification and method for exhaust gas purification (2010-06-01),
8. 7520912 - Air purifying filter media and process for producing the same (2009-04-21),
9. 6730144 - Air purifying filter using modified enzymes (2004-05-04),
10. 6579352 - Air cleaning filter (2003-06-17),
11. 6524535 - Adsorption, decomposition deodorization element (2003-02-25),
12. 5484756 - Hydrodesulfurization catalyst and preparation thereof (1996-01-16),
13. 5447701 - Gas purification method (1995-09-05),
14. 5399538 - Porous sepiolite, process for producing same and adsorptive (1995-03-21),
15. 5397752 - Production of water resisting, hard, porous metasepiolite (1995-03-14),
Company Overview
Nikki-Universal Co., Ltd., based in Tokyo, specializes in the development and manufacturing of advanced materials and components for various industries. The company focuses on innovative solutions in fields such as electronics, automotive, and industrial applications. With a commitment to research and development, Nikki-Universal aims to enhance product performance and sustainability through cutting-edge technology and materials science. Its strategic location in Japan positions it well within the dynamic Asian market for high-tech solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

24 Patents

#1,215 in Tokyo

#2,636 in Japan

#26,686 in the World

Tokyo, JP
Tokyo, Japan

Nikki-Universal Co., Ltd.

Forward Citations = 118

34 inventors:

goldMedal Yoshiki Nakano (7 out of 8 patents)

silverMedal Masaru Tatsushima (6 out of 8 patents)

bronzeMedal Makoto Sakura (6 out of 6 patents)

4.  Eiki Iida (6 out of 6 patents)

5.  Toshio Hashimoto (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nikki-Universal Co., Ltd.. Retrieved from https://idiyas.com/company/nikki-universal-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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