Yokohama, Japan

Hideo Hayashi

This inventor holds 25 USPTO granted patents, primarily in Printing Inks. Top assignees: Nippon Oil Company, Toyo Ink Manufacturing Company, Nippon Kokan Kabushiki Kaisha. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideo Hayashi. Retrieved from https://idiyas.com/inventor/hideo-hayashi

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 9

Forward Citations = 220(Granted Patents)


Location History:

  • Kawasaki, JA (1977)
  • Yokohama, JA (1976 - 1978)
  • Yokohama, JP (1979 - 1985)

Company Filing History:


Years Active: 1976-1985

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Areas of Expertise:
Offset Printing Ink
Hydrogenated Resin
Curable Coating
Varnish Composition
Hot Melt Composition
Composite Resin
Alcoholic Varnishes
Traffic Paint
Resin Production
Printing Ink Composition
Five-Member Cyclic Compounds
Fluid Leakage Detection
25 patents (USPTO):Explore Patents

Title: Hideo Hayashi: A Pioneer in Printing Ink and Hot Melt Composition Innovations

Introduction: Hideo Hayashi, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the fields of printing ink compositions and hot melt technologies. With a remarkable portfolio of 25 patents, he has demonstrated his expertise and creativity in developing innovative solutions that meet the evolving demands of various industries.

Latest Patents: Hayashi's latest inventions include a novel offset printing ink composition and a versatile hot melt composition. The offset printing ink composition is characterized by the reaction product of 5 to 100 parts by weight of a phenolic resin and about 100 parts by weight of a resin modified with an acid. The unique formulation utilizes an appropriate 4-9 carbon alkylphenol reacted with formalin to prepare the phenolic resin, while the modified resin is developed through a reaction involving unsaturated carboxylic acids or anhydrides. On the other hand, his hot melt composition comprises a hydrogenated resin copolymer with a softening point ranging from 50°C to 140°C, which is derived from copolymerizing components including five-member cyclic compounds and Diels-Alder addition products.

Career Highlights: Over the years, Hayashi honed his skills and knowledge while working for notable companies such as Nippon Oil Company and Toyo Ink Manufacturing Company. His experiences in these leading enterprises provided him with a strong foundation to pursue inventive initiatives and develop groundbreaking technologies.

Collaborations: Hideo Hayashi has had the opportunity to collaborate with distinguished professionals in his field, including coworkers Shozo Tsuchiya and Hisatake Sato. These collaborations have undoubtedly enriched his work and led to the successful development of innovative products that are recognized and utilized in the industry.

Conclusion: Hideo Hayashi stands out as a prominent figure in the realm of innovations related to printing inks and hot melt compositions. With his extensive patent portfolio and impactful contributions to the industry, he continues to inspire future inventors and researchers to push the boundaries of creativity and technology. His work exemplifies the spirit of innovation that drives progress in various fields and highlights the importance of collaboration in achieving significant advancements.

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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