Nara, Japan

Hidekazu Ishida

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Yamada Chemical Co., Ltd.. Active years: 1994.

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

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


Company Filing History:


Years Active: 1994

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

Title: The Innovations of Hidekazu Ishida

Introduction

Hidekazu Ishida is a notable inventor based in Nara, Japan. He has made significant contributions to the field of chemical compounds, particularly in the development of recording materials. His innovative work has led to the creation of a unique phthalide compound that has practical applications in optical character recognition.

Latest Patents

Ishida holds a patent for a phthalide compound and a recording material utilizing this compound. The invention provides a novel phthalide compound that rapidly forms a blue-black color when developed. This color image exhibits intense absorption at wavelengths around 700 to 750 nm, making it suitable for use in optical character readers.

Career Highlights

Ishida is associated with Yamada Chemical Co., Ltd., where he has been able to apply his expertise in chemical innovations. His work has not only advanced the company's research but has also contributed to the broader field of materials science.

Collaborations

Ishida has collaborated with notable colleagues such as Yutaka Muraki and Hajime Kawai. These partnerships have fostered a creative environment that encourages the development of innovative solutions in their respective fields.

Conclusion

Hidekazu Ishida's contributions to the field of chemical compounds and recording materials highlight his role as a significant inventor. His patented innovations continue to influence the industry and demonstrate the importance of creativity in scientific research.

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…