Ichiharashi, Japan

Kiyonori Shiiba

This inventor holds 3 USPTO granted patents. Top assignee: Chisso Corporation. Active years: 1981-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyonori Shiiba. Retrieved from https://idiyas.com/inventor/kiyonori-shiiba

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 = 3.5

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Ichiharashi, JP (1981)
  • Moriyama, JP (1991)

Company Filing History:


Years Active: 1981-1991

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3 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Kiyonori Shiiba from Ichiharashi, Japan

Introduction: Kiyonori Shiiba is a distinguished inventor based in Ichiharashi, Japan, recognized for his significant contributions to the field of materials science. With three patents to his name, Shiiba continues to innovate and improve products in diverse applications, particularly focusing on tobacco filtration and plasticizer production.

Latest Patents: Among his latest innovations is a revolutionary tobacco filter stock designed to improve the efficiency and quality of tobacco products. This filter stock is notable for its molding process, which allows filaments to entangle without the need for adhesives, resulting in a filter that boasts both superior whiteness and suitable hardness. The components of this patent include crystalline polyolefin filaments, predominantly crystalline polypropylene, optimized for performance characteristics including a denier range and a precise height-to-width ratio.

Additionally, Shiiba has developed a method for producing plasticizers that incorporate only minimal amounts of titanium. This innovative approach not only reduces environmental impact due to decreased wastewater production but also enhances the efficiency of the production process. By employing phthalic anhydride and alcohols while utilizing tetraalkyl titanate as a catalyst, this method exemplifies advanced chemical engineering principles.

Career Highlights: Shiiba is currently affiliated with Chisso Corporation, where he applies his expertise to further develop innovative solutions and products. Throughout his career, he has demonstrated a dedication to advancing materials technology, contributing to the enhancement of various industries.

Collaborations: Shiiba's work is complemented by valuable collaborations with fellow inventors, including Fumio Sagara and Hiroshi Kawabata. Their teamwork showcases the power of collaborative innovation in fostering breakthroughs and developing cutting-edge technologies.

Conclusion: Kiyonori Shiiba stands out as a prominent figure in the field of invention, exemplifying the spirit of innovation through his patents and contributions at Chisso Corporation. His work not only has the potential to advance industry practices but also highlights the importance of sustainable methods in production processes. Shiiba's journey as an inventor continues to inspire those pursuing advancements in technology and 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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