Company Filing History:
Years Active: 1994-2002
Title: Innovations by Tohru Ushirogouchi: A Pioneer in Photosensitive Compositions
Introduction: Tohru Ushirogouchi is a notable inventor based in Yokohama, Japan. With a total of three patents to his name, he has contributed significantly to the field of photosensitive compositions, particularly in technologies utilized in photoresists. His innovative approaches have the potential to enhance manufacturing processes in various applications.
Latest Patents: Among Ushirogouchi's most recent inventions is a photosensitive composition that contains a dissolution inhibitor and an acid-releasing compound. This innovative formulation comprises an acid-decomposable compound with at least one substituent that reacts with alkali solutions to form carboxylic or sulfonic groups. Additionally, it includes a compound that generates acid when exposed to chemical radiation. For enhanced effectiveness, this composition may also feature an alkali-soluble polymer with a softening point of 150°C or higher and an average molecular weight ranging from 3000 to 8000. When utilized as photoresist material, this composition facilitates the creation of fine resist patterns, demonstrating Ushirogouchi's commitment to advancing the precision of lithography methods.
Career Highlights: Tohru Ushirogouchi is currently affiliated with Kabushiki Kaisha Toshiba, where his expertise in photochemistry and polymer science is applied to developing cutting-edge materials for electronic devices. His focus on innovative solutions in the semiconductor industry reflects his dedication to pushing the boundaries of technology and manufacturing processes.
Collaborations: Throughout his career, Ushirogouchi has collaborated with esteemed colleagues such as Naoko Kihara and Fumihiko Yuasa. These partnerships have fostered a rich exchange of ideas and expertise, significantly impacting the advancement of their shared field.
Conclusion: Tohru Ushirogouchi stands out as an influential inventor, leaving an indelible mark on the industry with his innovative patents and collaborative spirit. His work in photosensitive compositions exemplifies the ongoing quest for technological advancement, promising to pave the way for new developments in manufacturing precision and quality. As the field continues to evolve, Ushirogouchi’s contributions will remain relevant and insightful for future innovations.