Tokyo, Japan

Takeo Hirabayashi

This inventor holds 3 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1978-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeo Hirabayashi. Retrieved from https://idiyas.com/inventor/takeo-hirabayashi

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 = 4.0

ph-index = 2

Forward Citations = 9(Granted Patents)


Location History:

  • Tokyo, JP (1978 - 1979)
  • Numazu, JP (1983)

Company Filing History:


Years Active: 1978-1983

Loading Chart...
3 patents (USPTO):Explore Patents

Title: Takeo Hirabayashi: Innovator in Diazo Technology

Introduction

Takeo Hirabayashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of diazo technology, holding a total of 3 patents. His work has been instrumental in advancing the capabilities of copying materials and developers.

Latest Patents

Hirabayashi's latest patents include a diazo copying element and a liquid developer for binary diazo copying materials. The diazo copying element is a one-component or binary type that comprises a substrate, a pre-coat layer overlying the substrate, which consists essentially of fine particle silica and a specific copolymer with a glass transition temperature ranging from -20°C to 50°C. Additionally, the liquid developer is designed for use in developing binary diazo copying materials, consisting essentially of an alkali metal salt of an amino acid and/or an alkaline earth metal salt of an amino acid.

Career Highlights

Hirabayashi is associated with Ricoh Company, Ltd., where he has been able to apply his innovative ideas and research. His work has contributed to the development of advanced copying technologies that are widely used in various applications.

Collaborations

Hirabayashi has collaborated with notable colleagues such as Tsutomu Matsuda and Takeshi Yanagihara, further enhancing the impact of his inventions in the industry.

Conclusion

Takeo Hirabayashi's contributions to diazo technology exemplify the spirit of innovation. His patents and collaborations have significantly influenced the field, showcasing his expertise and dedication to advancing technology.

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]
Loading…