Ageo, Japan

Keiichi Hashimoto

This inventor holds 1 USPTO granted patent. Top assignee: Dainippon Ink and Chemicals, Incorporated. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Hashimoto. Retrieved from https://idiyas.com/inventor/keiichi-hashimoto-l4t1lgse

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 = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: Keiichi Hashimoto: Innovator in Optical Disk Technology

Introduction

Keiichi Hashimoto is a prominent inventor based in Ageo, Japan. He has made significant contributions to the field of optical disk technology. His innovative approach has led to the development of a unique method for manufacturing optical disks.

Latest Patents

Hashimoto holds a patent for an optical disk and the method of manufacturing it. The patent describes a process where ultraviolet rays are irradiated in a space through which a cationic ultraviolet curable composition falls from a nozzle before reaching a disc substrate. The composition, once irradiated with ultraviolet rays, is distributed in a ring form on the surface of the disc substrate. Another disc substrate is then superposed on this distributed surface, allowing the composition to spread by pressing or by the weight of the other disc substrate itself. This innovative method enhances the efficiency and quality of optical disk production.

Career Highlights

Keiichi Hashimoto is associated with Dainippon Ink and Chemicals, Incorporated, where he has been instrumental in advancing optical technologies. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the industry.

Collaborations

Throughout his career, Hashimoto has collaborated with notable colleagues, including Shoei Ebisawa and Daisuke Ito. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Keiichi Hashimoto's contributions to optical disk technology exemplify the spirit of innovation. His patented methods and collaborative efforts continue to influence the industry positively.

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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