Koriyama, Japan

Yousuke Ishii

This inventor holds 2 USPTO granted patents. Top assignee: Micro Co., Ltd.. Active years: 2005-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yousuke Ishii. Retrieved from https://idiyas.com/inventor/yousuke-ishii-mas0e1u2

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


% Patents Active = 50.0

Average Co-Inventor Count = 2.0

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 2005-2009

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2 patents (USPTO):Explore Patents

Title: Yousuke Ishii: Innovator in Writing Instruments

Introduction

Yousuke Ishii is a notable inventor based in Koriyama, Japan. He has made significant contributions to the field of writing instruments, holding two patents that showcase his innovative designs. His work reflects a commitment to enhancing the functionality and user experience of everyday writing tools.

Latest Patents

Ishii's latest patents include a unique writing instrument that features a writing refill slidably disposed in a tubular casing. This design incorporates a rotary cam mechanism that extends and retracts the writing refill in response to a knocking member at the rear end of the casing. The mechanism ensures that the writing refill can be easily replenished while maintaining a compact design. Another patent describes a writing instrument with a tubular member that has a writing component mounted within it. This design allows for the writing tip to move between a writing position and a housed position, ensuring protection when not in use. An airtight sleeve connected to the writing component enhances the functionality by allowing for smooth movement between positions.

Career Highlights

Yousuke Ishii is associated with Micro Co., Ltd., where he continues to develop innovative writing solutions. His work has contributed to the advancement of writing instruments, making them more efficient and user-friendly.

Collaborations

Ishii collaborates with Hiroyuki Kanari, a fellow innovator, to further enhance their designs and explore new possibilities in writing technology.

Conclusion

Yousuke Ishii's contributions to the field of writing instruments demonstrate his innovative spirit and dedication to improving everyday tools. His patents reflect a blend of creativity and practicality, making a lasting impact on 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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