Location History:
- Kamakura, JP (1990)
- Kanagawa, JP (1995)
- Sodegaura, JP (2006 - 2010)
- Chiba, JP (2013)
Company Filing History:
5 out of 1,788 
2 out of 1,379 
Years Active: 1990-2013
Title: **Etsuo Ohkawado: A Trailblazer in Photosensitive Resin Technologies**
Introduction
Etsuo Ohkawado, an inventive mind hailing from Chiba, Japan, has made significant contributions to the field of materials science. With a total of seven patents to his name, Ohkawado has become a recognized figure in the development of environmentally friendly photosensitive resin compositions. His innovative approaches not only enhance product performance but also prioritize sustainability.
Latest Patents
Among Etsuo Ohkawado’s most recent patent achievements are his advancements in photosensitive resin compositions. One notable patent discloses a highly effective resin that avoids halogenated and antimony compounds, addressing environmental concerns while providing excellent flame retardancy after curing. The composition includes a (meth)acrylate compound, a polyimide precursor, and a photopolymerization initiator, ensuring reliable performance in demanding applications.
Another significant patent outlines a photosensitive resin composition designed to improve the production of printed wiring boards. This innovation facilitates challenges in metal plating, such as under-film metal deposition and film peeling, while providing a wiring-protecting film with outstanding adhesion, flexibility, insulation reliability, and heat resistance. The composition consists of a carboxylated polymer, a compound with multiple photopolymerizable unsaturated double bonds, a photopolymerization initiator, and a specialized nitrogen compound.
Career Highlights
Etsuo Ohkawado has had a rewarding career, holding positions at prominent companies such as Mitsui Chemicals, Inc. and Mitsui Toatsu Chemicals Incorporated. His experience in these organizations has allowed him to develop innovative materials that meet the evolving needs of the industry.
Collaborations
Throughout his career, Ohkawado has collaborated with talented individuals, including Syuji Tahara and Katsuhiko Funaki. Together, their combined expertise has contributed to groundbreaking advancements in the field of photosensitive materials.
Conclusion
Etsuo Ohkawado is a remarkable inventor whose work has paved the way for sustainable advancements in photosensitive resin technologies. His dedication and innovative spirit continue to influence the materials science landscape, making a lasting impact on both industry practices and environmental considerations.