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For the Inventor, By the Inventor

Tokyo, Japan

Maintech Co., Ltd.


USPTO Granted Patents = 18

% Expired Patents = 16.7



Trademarks = 1

Forward Citations = 35

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15 inventors (with patents filed for the assignee):

goldMedal Hiroshi Sekiya (15 out of 16 patents)

silverMedal Kunio Sekiya (6 out of 6 patents)

bronzeMedal Daisuke Kobayashi (5 out of 79 patents)

4.  Tomohiko Nagatsuka (5 out of 6 patents)

5.  Hiraku Sawada (5 out of 5 patents)

6.  Kazuyuki Yusa (3 out of 3 patents)

7.  Hitomaru Sakata (2 out of 2 patents)

8.  Ayano Suga (2 out of 3 patents)

9.  Daisuke Kurihara (1 out of 20 patents)

10.  Toshikazu Hamaura (1 out of 1 patent)

11.  Shinichiro Ogoda (1 out of 1 patent)

12.  Hideaki Mori (1 out of 1 patent)

13.  Masayuki Serizawa (1 out of 1 patent)

14.  Koji Murayama (1 out of 1 patent)

15.  Kazuyujki Yusa (1 out of 2 patents)


18 patents:

1. 12258709 - Method for spraying chemical solution (2025-03-25),
2. 12006632 - Monitoring system (2024-06-11),
3. 11882348 - Monitoring camera device (2024-01-23),
4. 11214710 - Anti-contamination agent composition (2022-01-04),
5. 11008706 - Canvas cleaning device, canvas cleaning method and canvas cleaning mechanism (2021-05-18),
6. 10870118 - Nozzle cap, nozzle device provided with such cap, and spraying method of chemical solution (2020-12-22),
7. 10619299 - Contamination inhibitor composition (2020-04-14),
8. 10273631 - Method of spraying chemical solution (2019-04-30),
9. 9937521 - Method for spraying chemical solution (2018-04-10),
10. 9458572 - Method of using an anti-soiling agent composition (2016-10-04),
11. 9005394 - Anti-soiling agent composition (2015-04-14),
12. 8883890 - Crepe agent composition and method for producing crepe paper (2014-11-11),
13. 7585393 - Anti-staining agent for paper machine, and method for preventing stains using the same (2009-09-08),
14. 7323086 - Pollution prevention method for canvas used in paper machine (2008-01-29),
15. 7144478 - Pollution control method for cylindrical dryer used in paper machine (2006-12-05),
Company Overview
Maintech Co., Ltd. is a Tokyo-based company specializing in advanced technology solutions, particularly in the fields of electronics and precision machinery. The organization focuses on the development and manufacturing of high-quality components and systems that cater to various industries, including telecommunications, automotive, and industrial automation. With a commitment to innovation, Maintech leverages cutting-edge research to enhance product performance and reliability, positioning itself as a key player in the technology landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Maintech Co., Ltd. USPTO Patent Assignee Logo
18 Patents

#1,413 in Tokyo

#3,121 in Japan

#34,187 in the World

Tokyo, JP
Tokyo, Japan

Maintech Co., Ltd.

Forward Citations = 35

15 inventors:

goldMedal Hiroshi Sekiya (15 out of 16 patents)

silverMedal Kunio Sekiya (6 out of 6 patents)

bronzeMedal Daisuke Kobayashi (5 out of 79 patents)

4.  Tomohiko Nagatsuka (5 out of 6 patents)

5.  Hiraku Sawada (5 out of 5 patents)

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