Shiga, Japan

Shiro Saka

This inventor holds 1 USPTO granted patent. Top assignee: Daicel Chemical Industries, Ltd.. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shiro Saka. Retrieved from https://idiyas.com/inventor/shiro-saka-tjblg7cy

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 = 7.0

ph-index = 1

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: The Innovations of Shiro Saka: Pioneering Fatty Acid Esters of Cellulose

Introduction

Shiro Saka, an innovative inventor based in Shiga, Japan, has made significant contributions to the field of materials science. With a focus on cellulose derivatives, Saka's research and development have led to a notable patent that enhances the properties of fatty acid esters. He is currently associated with Daicel Chemical Industries, Ltd., a company recognized for its commitment to innovation and sustainability.

Latest Patents

Shiro Saka holds a patent for a "Fatty acid ester of cellulose, cellulose diacetate and processes for the." This invention describes a fatty acid ester of cellulose that maintains excellent transparency, filterability, and spinnability, despite a high content of mannose and xylose. The unique formulation ensures that the total molar content of mannose and xylose accounts for at least 7% of glucose, mannose, and xylose. The preparation method uses pulp with a low α-cellulose content and a corresponding fatty acid as a diluent, along with an organic solvent. This advancement is pivotal in the creation of cellulose diacetate with superior filtration and transparency.

Career Highlights

Throughout his career at Daicel Chemical Industries, Ltd., Shiro Saka has focused on the advancement of cellulose-based materials. His groundbreaking patent exemplifies his expertise and innovative approach, enabling the development of new applications in various industries, including textiles and packaging.

Collaborations

Saka has collaborated with colleagues such as Hiroyuki Matsumura and Naoto Habu, fostering a teamwork environment that promotes creativity and forward-thinking in research initiatives. This collaboration is vital in pushing the boundaries of what’s possible with cellulose derivatives, ensuring that their work leads to practical applications and commercial success.

Conclusion

Shiro Saka's contributions to the field of materials science, particularly through his patent on fatty acid esters of cellulose, demonstrate the transformative power of innovation. His work at Daicel Chemical Industries, alongside his talented coworkers, continues to inspire new advancements in cellulose technology, paving the way for future developments that could revolutionize various industries.

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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