Hitachi, Japan

Ritsuko Obata

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ritsuko Obata. Retrieved from https://idiyas.com/inventor/ritsuko-obata

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 = 9.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2000

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1 patent (USPTO):Explore Patents

Title: Ritsuko Obata: Innovator in Photosensitive Resin Technology

Introduction

Ritsuko Obata is a prominent inventor based in Hitachi, Japan. She has made significant contributions to the field of materials science, particularly in the development of photosensitive resin compositions. Her innovative work has implications for various applications, including flexible printed circuit boards.

Latest Patents

Ritsuko Obata holds a patent for a photosensitive resin composition and its application of photosensitivity. This composition includes a resin with an amide bond, an oxyalkylene group, and a carboxyl group, along with a photopolymerizable compound and a photopolymerization initiator. The resulting material exhibits alkali developability, good sensitivity, and photocurability. It is designed for efficient pattern formability through photolithography and demonstrates excellent application workability to films. The cured products produced from this composition possess remarkable properties such as folding endurance, solder reflow heat resistance, solvent resistance, bondability, and nonflammability, making it suitable for various applications.

Career Highlights

Ritsuko Obata is associated with Hitachi, Ltd., where she has been instrumental in advancing the company's research and development efforts in materials technology. Her work has not only contributed to the company's portfolio but has also enhanced the capabilities of products in the electronics sector.

Collaborations

Throughout her career, Ritsuko has collaborated with notable colleagues, including Jin Amanokura and Fumihiko Ota. These collaborations have fostered a creative environment that has led to innovative solutions in their respective fields.

Conclusion

Ritsuko Obata's contributions to the field of photosensitive resin technology highlight her role as a leading inventor. Her innovative patent and collaborative efforts continue to influence advancements in materials science and electronics.

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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