Yokohama, Japan

Nobuhiro Ishida

This inventor holds 1 USPTO granted patent. Top assignees: Mitsubishi Chemical Industries Limited, Oriental Sangyo Co., Ltd.. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhiro Ishida. Retrieved from https://idiyas.com/inventor/nobuhiro-ishida-nimm7eac

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Nobuhiro Ishida: Innovator in Pencil Lead Technology

Introduction

Nobuhiro Ishida is a notable inventor based in Yokohama, Japan. He is recognized for his contributions to the field of pencil lead technology. His innovative approach has led to the development of a unique manufacturing method that enhances the quality and performance of pencil leads.

Latest Patents

Ishida holds a patent for a pencil lead and its manufacturing method. The patent describes a pencil lead that comprises an extrudate of a kneaded blend of a coloring material and a novolak resin or a derivative thereof. This invention represents a significant advancement in the materials used for pencil leads, improving their durability and usability.

Career Highlights

Throughout his career, Nobuhiro Ishida has worked with prominent companies in the chemical industry. He has been associated with Mitsubishi Chemical Industries Limited, where he contributed to various projects related to material science. Additionally, he has worked with Oriental Sangyo Co., Ltd., further expanding his expertise in the field.

Collaborations

Ishida has collaborated with various professionals in his field, including his coworker Kazuyuki Saito. Their joint efforts have contributed to advancements in pencil lead technology and have fostered innovation within their respective companies.

Conclusion

Nobuhiro Ishida's work in pencil lead technology showcases his innovative spirit and dedication to improving everyday products. His patent and career achievements reflect his significant 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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