Aichi, Japan

Hiroshi Inukai

This inventor holds 3 USPTO granted patents. Top assignee: Toagosei Company, Ltd.. Active years: 1999-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Inukai. Retrieved from https://idiyas.com/inventor/hiroshi-inukai-kh8emsx8

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 2

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 1999-2002

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3 patents (USPTO):Explore Patents

Title: Hiroshi Inukai: Coatings Innovation at Toagosei Company, Ltd.

Introduction

Hiroshi Inukai is an inventor associated with Toagosei Company, Ltd., based in Aichi, Japan. His patent work includes coating compositions designed to improve properties such as weatherability, gloss, and stain resistance. The supplied information lists 3 patents for Inukai.

Latest Patents

**Paint composition.** This invention describes a paint composition containing a copolymer with three essential types of monomer units: an alkyl-group-containing (meth)acrylate unit, a functional monomer unit, and a maleimide-group-containing monomer unit. The functional unit may include a hydroxyalkyl, epoxy, or alkoxysilyl group. The composition is designed to provide strong weatherability and coating gloss. It may use organic solvents, including cyclic ethers, aromatic hydrocarbons, esters, and ketones. For formulations containing at least 40% saturated hydrocarbon solvent, the description identifies a preferred proportion of 5–50% by weight for a (meth)acrylic ester monomer with an 8-to-20-carbon alkyl group.

**Cold-setting coating composition.** This invention describes a coating composition containing a fluorocopolymer, a curing catalyst, and an organic solvent. The copolymer includes fluoroolefin, (meth)acrylic ester, organosilicon, and other radically polymerizable monomer units, with specified ranges for their proportions and a glass-transition temperature of 15–60°C. The composition is intended to offer weather resistance and stain resistance while curing under cold-setting conditions.

Career Highlights

Inukai’s listed patent work focuses on polymer-based coating technologies. The described inventions address practical coating performance, including durability against weathering, surface gloss, and resistance to staining.

Collaborations

The supplied information identifies Akihito Iida and Kunihiko Mizutani as Inukai’s coworkers. It does not specify their roles in the listed inventions.

Conclusion

Hiroshi Inukai’s patent portfolio at Toagosei Company, Ltd. reflects a focus on coating compositions that combine specialized polymer chemistry with improved performance and durability.

Profile summary based on public USPTO records.
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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