Saitama, Japan

Hirofumi Ishii

This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Ishii. Retrieved from https://idiyas.com/inventor/hirofumi-ishii-lk4m2pt2

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: Hirofumi Ishii: Innovator in LCD Technology

Hirofumi Ishii is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of liquid crystal display (LCD) technology. His innovative approach has led to the development of a unique aligning substrate that enhances the performance of LCDs.

Latest Patents

Hirofumi Ishii holds a patent for an LC aligning substrate, which is crucial for the functionality of LCDs. The patent describes a method where the substrate is rubbed with a roller that has irregularities on its surface. This process fine-tunes the orientation of molecules at the surface of the substrate, effectively concealing sharp changes in molecular orientation. This innovation prevents the LCD from displaying defective rubbing stripes, thereby improving the overall quality of the display.

Career Highlights

Hirofumi Ishii is associated with Kabushiki Kaisha Toshiba, a leading company in technology and electronics. His work at Toshiba has allowed him to focus on advancements in display technology, contributing to the company's reputation for innovation.

Collaborations

Hirofumi has collaborated with notable colleagues, including Mitsuru Ishibashi and Hideyuki Sasaki. Their combined expertise has fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Hirofumi Ishii's contributions to LCD technology through his innovative patent demonstrate his commitment to enhancing display quality. His work continues to influence the field, showcasing the importance of innovation in technology.

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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