Chiba, Japan

Kunio Yamada

This inventor holds 2 USPTO granted patents. Top assignees: Sumitomo Chemical Company, Limited, Japan Butyl Company Limited. Active years: 1978-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunio Yamada. Retrieved from https://idiyas.com/inventor/kunio-yamada-djp0q45o

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 = 4.4

ph-index = 1

Forward Citations = 2(Granted Patents)


Location History:

  • Toyonaka, JA (1978)
  • Chiba, JP (1989)

Company Filing History:


Years Active: 1978-1989

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2 patents (USPTO):Explore Patents

Title: Kunio Yamada: Innovator in Protective Films and Dyeing Processes

Introduction

Kunio Yamada is a notable inventor based in Chiba, Japan. He has made significant contributions to the fields of protective films and dyeing processes. With a total of 2 patents to his name, Yamada's work showcases his innovative spirit and technical expertise.

Latest Patents

Yamada's latest patents include a peelable protective film and a process for dry dyeing materials. The peelable protective film is processed from a composition that includes 100 parts by weight of an ethylene/methyl methacrylate copolymer, along with an inorganic filler and a slip agent. This protective film exhibits good adhesion to tacky surfaces while maintaining a low peeling strength, allowing for easy removal. His second patent involves a process for dyeing synthetic, semi-synthetic, or natural materials deep turquoise blue using a vaporized dye formula.

Career Highlights

Throughout his career, Kunio Yamada has worked with prominent companies such as Sumitomo Chemical Company, Limited and Japan Butyl Company Limited. His experience in these organizations has contributed to his development as an inventor and innovator in his field.

Collaborations

Yamada has collaborated with notable coworkers, including Kohzoh Miyazaki and Yoshitaka Oowatari. These partnerships have likely enriched his work and expanded his innovative capabilities.

Conclusion

Kunio Yamada's contributions to the fields of protective films and dyeing processes highlight his inventive prowess. His patents reflect a commitment to innovation and practical solutions in material science.

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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