Saitama, Japan

Chikako Sasao

This inventor holds 1 USPTO granted patent. Top assignees: Nippon Piston Ring Co., Ltd., Toyota Jidosha Kabushiki Kaisha. Active years: 2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chikako Sasao. Retrieved from https://idiyas.com/inventor/chikako-sasao

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

Calculating rank

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2011

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1 patent (USPTO):Explore Patents

Title: Chikako Sasao: Innovator in Coil Expander Technology

Introduction

Chikako Sasao is a notable inventor based in Saitama, Japan. She has made significant contributions to the field of engineering, particularly in the development of wire materials for coil expanders. Her innovative approach has led to advancements that enhance the performance and durability of piston rings.

Latest Patents

Chikako Sasao holds 1 patent for her invention titled "Wire material for coil expander and coil expander." This patent describes a wire material designed to manufacture coil expanders that minimize issues such as abnormal wear and a reduction in strength. The wire material is specifically utilized in a combination piston ring, which includes a piston ring and a coil expander that presses and urges the piston ring outward. The unique rectangular cross-sectional shape of the wire material allows for the formation of a convex curved outer surface on the coil expander, enhancing its functionality.

Career Highlights

Throughout her career, Chikako has worked with prominent companies in the automotive industry, including Nippon Piston Ring Co., Ltd. and Toyota Jidosha Kabushiki Kaisha. Her experience in these organizations has provided her with valuable insights into the engineering and manufacturing processes involved in piston ring technology.

Collaborations

Chikako has collaborated with esteemed colleagues such as Nobuyuki Matsushima and Takao Suzuki. Their combined expertise has contributed to the successful development of innovative solutions in their field.

Conclusion

Chikako Sasao's contributions to coil expander technology exemplify her dedication to innovation and engineering excellence. Her patent and career achievements highlight her role as a leading inventor in the industry.

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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