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For the Inventor, By the Inventor

Tokyo, Japan

Kayaku Akzo Corporation


USPTO Granted Patents = 3

Forward Citations = 11

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3 inventors (with patents filed for the assignee):

goldMedal Takumi Fukumura (2 out of 2 patents)

silverMedal John Meijer (1 out of 37 patents)

bronzeMedal Akio Ishiwatari (1 out of 2 patents)


3 patents:

1. 5674958 - Process for (co)polymerizing vinyl monomers (1997-10-07),
2. 5254650 - Process for the preparation of styrene or styrene derivative-containing (1993-10-19),
3. 4977240 - Unsaturated alkyd-containing organic peroxide composition (1990-12-11),
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USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#3,548 in Tokyo

#8,932 in Japan

Tokyo, JP
Tokyo, Japan

Kayaku Akzo Corporation

Forward Citations = 11

3 inventors:

goldMedal Takumi Fukumura (2 out of 2 patents)

silverMedal John Meijer (1 out of 37 patents)

bronzeMedal Akio Ishiwatari (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kayaku Akzo Corporation. Retrieved from https://idiyas.com/company/kayaku-akzo

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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