% Expired Patents = 42.9

Forward Citations = 18

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14 inventors (with patents filed for the assignee):

Akira Saito (4 out of 4 patents)

Hiroki Kageshima (3 out of 3 patents)

Yoichi Murakami (3 out of 3 patents)

4. Shigeru Abe (3 out of 3 patents)

5. Kazumi Hayama (3 out of 3 patents)

6. Miki Takahashi (2 out of 2 patents)

7. Miho Abe (2 out of 2 patents)

8. Akio Kato (2 out of 2 patents)

9. Naoto Kikuchi (1 out of 1 patent)

10. Kenji Shiraishi (1 out of 35 patents)

11. Tsuneo Yamaguchi (1 out of 1 patent)

12. Naoki Natori (1 out of 1 patent)

13. Akira Saito (1 out of 42 patents)

14. Naho Maruyama (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12178859 - Anti inflammatory composition (2024-12-31),

2. 11344625 - Compositions having antifungal activity (2022-05-31),

3. 10729779 - Composition having antifungal activity (2020-08-04),

4. 10150073 - Air cleaner (2018-12-11),

5. 8680250 - Method and device for extracting pollen proteins (2014-03-25),

6. 8524242 - Soluble aggregate, immune tolerance inducer and manufacturing method thereof (2013-09-03),

7. 7255722 - Gas filter (2007-08-14),

Company Overview

Wako Filter Technology Co., Ltd. is a leading manufacturer of high-quality filters for various industries. With over 20 years of experience, we are committed to providing innovative filtration solutions to our customers worldwide. Our products are known for their reliability, efficiency, and durability, making us a trusted partner in the field of filtration technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#2,287 in Tokyo

#5,456 in Japan

Tokyo, Japan

Wako Filter Technology Co., Ltd.

Forward Citations = 18

14 inventors:

Akira Saito (4 out of 4 patents)

Hiroki Kageshima (3 out of 3 patents)

Yoichi Murakami (3 out of 3 patents)

4. Shigeru Abe (3 out of 3 patents)

5. Kazumi Hayama (3 out of 3 patents)

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