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For the Inventor, By the Inventor

Osaka, Japan

Japan Envirochemicals, Ltd.

Calculating rank
USPTO Granted Patents = 6

% Expired Patents = 100.0

Trademarks = 2

Forward Citations = 14

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13 inventors (with patents filed for the assignee):

goldMedal Juichi Yanagi (2 out of 4 patents)

silverMedal Masaaki Nakabayashi (1 out of 1 patent)

bronzeMedal Masahiko Hayashi (1 out of 1 patent)

4.  Yuka Kawashita (1 out of 1 patent)

5.  Isao Hamasaki (1 out of 1 patent)

6.  Yasuhiro Goda (1 out of 1 patent)

7.  Ayako Kobayashi (1 out of 1 patent)

8.  Masato Hirobe (1 out of 1 patent)

9.  Keizo Furukawa (1 out of 1 patent)

10.  Masaaki Kameno (1 out of 1 patent)

11.  Masanori Tsuji (1 out of 5 patents)

12.  Junji Oshima (1 out of 20 patents)

13.  Motoya Mouri (1 out of 8 patents)


6 patents:

1. 8808752 - Controlled release particles and method for producing the same (2014-08-19),
2. 8183261 - Microorganism control agent and stabilizing method (2012-05-22),
3. 7893004 - Oxidation reaction catalyst and process for producing a compound using the same (2011-02-22),
4. 7309676 - Remover for heavy metals contained in water (2007-12-18),
5. 7138241 - Hybridoma, an antibody resistant to an interfering substance, and a kit for immunological analysis (2006-11-21),
6. 6787494 - Molded product of activated carbon and a method for production thereof (2004-09-07),
Company Overview
Japan Envirochemicals, Ltd. is a leading provider of sustainable chemical solutions for various industries. With a commitment to environmental stewardship, we offer innovative products and services that help our clients reduce their carbon footprint and achieve their sustainability goals. Our team of experts is dedicated to driving positive change through research, development, and collaboration with our partners.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#651 in Osaka

#5,990 in Japan

Osaka, JP
Osaka, Japan

Japan Envirochemicals, Ltd.

Forward Citations = 14

13 inventors:

goldMedal Juichi Yanagi (2 out of 4 patents)

silverMedal Masaaki Nakabayashi (1 out of 1 patent)

bronzeMedal Masahiko Hayashi (1 out of 1 patent)

4.  Yuka Kawashita (1 out of 1 patent)

5.  Isao Hamasaki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Japan Envirochemicals, Ltd.. Retrieved from https://idiyas.com/company/japan-envirochemicals

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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