Minoo, Japan

Yoshio Ishitsuka

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Chemical Company, Limited. Active years: 1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Ishitsuka. Retrieved from https://idiyas.com/inventor/yoshio-ishitsuka

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 = 1

Forward Citations = 9(Granted Patents)


Company Filing History:


Years Active: 1978

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1 patent (USPTO):Explore Patents

Title: The Innovations of Yoshio Ishitsuka

Introduction

Yoshio Ishitsuka is a notable inventor based in Minoo, Japan. He has made significant contributions to the field of synthetic fiber dyeing. His innovative approach has led to advancements in the dyeing process, enhancing the quality and efficiency of textile production.

Latest Patents

Ishitsuka holds a patent for a method of disperse dyeing using polyglycerine anionic emulsifiers and/or polyaryl. This patent describes a process where a synthetic fiber material is continuously dyed or printed by contacting it with a dye bath that includes a water-insoluble dye and specific polyoxyethylene and glycerin derivatives. The resulting fiber material undergoes a dry or wet heat treatment, allowing it to achieve a deep color while preventing dye migration. This innovation has the potential to revolutionize the textile industry by improving dyeing techniques.

Career Highlights

Yoshio Ishitsuka is associated with Sumitomo Chemical Company, Limited, where he has been able to apply his expertise in chemical engineering and textile technology. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the field of synthetic fibers.

Collaborations

Ishitsuka has collaborated with notable colleagues, including Ryozo Kuriyama and Shin-Ichi Saitoh. These partnerships have fostered a creative environment that encourages innovation and the development of new technologies in the textile industry.

Conclusion

Yoshio Ishitsuka's contributions to the field of synthetic fiber dyeing exemplify the impact of innovative thinking in industrial applications. His patent and work at Sumitomo Chemical Company, Limited highlight the importance of advancements in textile technology. Through his efforts, the industry continues to evolve, paving the way for more efficient and effective dyeing processes.

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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