Tokyo, Japan

Masaki Shigemori

This inventor holds 1 USPTO granted patent. Top assignee: Pentel Kabushiki Kaisha. Active years: 2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Shigemori. Retrieved from https://idiyas.com/inventor/masaki-shigemori

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


Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2006

Loading Chart...
1 patent (USPTO):Explore Patents

Title: The Innovations of Masaki Shigemori

Introduction

Masaki Shigemori is a notable inventor based in Tokyo, Japan. He is recognized for his contributions to the field of writing instruments, particularly through his innovative designs in mechanical pencils. His work has significantly impacted the functionality and usability of these everyday tools.

Latest Patents

Masaki Shigemori holds a patent for a mechanical pencil that addresses the challenges associated with lead diameter. The patent describes a mechanism that allows for a certain dispersion range of lead diameter while ensuring that leads with maximum diameters can be delivered effectively. This is achieved through the design of an elastic thin film lead holding member, which is slightly smaller than the interior shape of the shaft tube. The design also includes an inner step portion to prevent the lead holding member from dropping out of the shaft tube.

Career Highlights

Throughout his career, Masaki Shigemori has made significant strides in the design and functionality of writing instruments. His innovative approach has led to the development of products that enhance user experience and reliability. His work at Pentel Kabushiki Kaisha has positioned him as a key figure in the industry.

Collaborations

Masaki Shigemori has collaborated with talented individuals such as Hidetoshi Kodama and Shigeki Maruyama. These collaborations have fostered a creative environment that encourages innovation and the development of new ideas in the field of writing instruments.

Conclusion

Masaki Shigemori's contributions to the mechanical pencil industry exemplify the importance of innovation in everyday products. His patent and collaborative efforts continue to influence the design and functionality of writing instruments, making them more efficient and user-friendly.

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]
Loading…