Fujinomiya, Japan

Hajime Kato

This inventor holds 17 USPTO granted patents, primarily in Color Development Technology. Top assignees: Fuji Photo Film Company, Limited, Other. Active years: 1976-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Kato. Retrieved from https://idiyas.com/inventor/hajime-kato-xjpkdlgd

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 = 2.2

ph-index = 8

Forward Citations = 153(Granted Patents)


Location History:

  • Fujinomiya, JA (1976 - 1977)
  • Fujimiya, JA (1976 - 1978)
  • Minami-ashigara, JA (1978)
  • Minami-ashigara, JP (1979)
  • Fujimiya, JP (1979)
  • Fujinomiya, JP (1980 - 1983)
  • Kawasaki-Shi, Kanagawa-Ken, JP (2001)

Company Filing History:


Years Active: 1976-2001

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Areas of Expertise:
Hydrocarbon Steam Reforming
Color Developer
Recording Unit
Recording Material
Pressure-Sensitive Recording
Desensitizer Compositions
Cellulose Fiber
Production Process
Recording Method
Novel Color Developer
Recording Sheets
Sheet Separation
17 patents (USPTO):Explore Patents

Title: The Innovative Mind of Hajime Kato: A Pioneer in Hydrocarbon Reforming

Introduction: Hajime Kato is a notable inventor hailing from Fujinomiya, Japan. With a remarkable total of 17 patents to his name, Kato has made significant contributions to the fields of hydrocarbon processing and color development. His innovative methodologies and products reflect a deep understanding of chemical engineering and materials science.

Latest Patents: Among his latest inventions, Kato introduced a cutting-edge method for hydrocarbon steam reforming. This process utilizes a primary reforming means that includes an external combustion type of reforming furnace to produce a primary reformed gas from a mixed gas of hydrocarbon and steam. The method further advances by carrying out a secondary reforming reaction in the presence of air and/or oxygen. His inventive burner assembly for the reforming furnace comprises heaters for reforming tubes and regenerators that preheat a combustion air flow. This clever design enables significant energy and production efficiency. Additionally, Kato developed an innovative color developer that comprises a combination of zinc oxide, salicylic acids, and metal silicates. This color developer showcases enhanced developing abilities and achieves high light resistance when in contact with color formers.

Career Highlights: Kato's professional journey includes a vital tenure at Fuji Photo Film Company, Limited, where he honed his expertise and expanded his patent portfolio. His commitment to innovation has established him as a pivotal figure in his sector, driving forward advancements in both color development technology and hydrocarbon processing.

Collaborations: Throughout his career, Kato has collaborated with several talented individuals, including Takao Hayashi and Akio Miyamoto. These partnerships have acted as a catalyst for creativity, resulting in groundbreaking inventions that benefit various industries.

Conclusion: Hajime Kato stands out as an influential inventor whose work has not only advanced technology but also improved industrial processes. With 17 patents under his belt, his contributions to hydrocarbon reforming and color development highlight the fusion of creativity and scientific understanding. Kato's legacy as an inventor continues to inspire future generations.

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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