Kanagawa, Japan

Yoshiko Shishido

This inventor holds 1 USPTO granted patent and 2 published patent applications and 1 EPO patent. Top assignee: Sumitomo Heavy Industries, Ltd.. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiko Shishido. Retrieved from https://idiyas.com/inventor/yoshiko-shishido

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 1 

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Yoshiko Shishido: Innovator in Pulp Bleaching Technology

Introduction

Yoshiko Shishido is a prominent inventor based in Kanagawa, Japan. She has made significant contributions to the field of pulp bleaching technology. Her innovative methods focus on improving the quality of pulp while utilizing ozone in the bleaching process.

Latest Patents

Yoshiko Shishido holds a patent for a method for bleaching pulp with ozone. This method is designed to bleach pulp without deteriorating its quality. The process begins with a medium consistency pulp, which is manageable during transfer and dewatering. The method involves maintaining a higher reaction velocity during the initial stages of the ozone bleaching process while preventing cellulose attack in the latter stages. The pulp consistency is lowered in a stepwise manner, allowing for effective bleaching while preserving the integrity of the pulp.

Career Highlights

Yoshiko Shishido is associated with Sumitomo Heavy Industries, Ltd., where she has applied her expertise in pulp technology. Her work has been instrumental in advancing methods that enhance the efficiency and effectiveness of pulp bleaching.

Collaborations

Yoshiko has collaborated with notable colleagues, including Kouhei Miki and Takuya Yamamoto. These partnerships have contributed to the development and refinement of her innovative bleaching methods.

Conclusion

Yoshiko Shishido's contributions to pulp bleaching technology highlight her role as a leading inventor in her field. Her patented methods demonstrate a commitment to improving industrial processes while maintaining quality standards.

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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