Location History:
- Yokohama, JP (1992 - 2011)
- Kanagawa, JP (2012 - 2013)
Company Filing History:
10 out of 1,009 
1 out of 2,957 
1 out of 1 Years Active: 1992-2013
Title: Masato Hatao: Innovator in Ultraviolet Protection Technologies
Introduction
Masato Hatao is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of ultraviolet protection technologies, holding a total of 10 patents. His work focuses on evaluating the effectiveness of materials in protecting against harmful ultraviolet radiation.
Latest Patents
Hatao's latest patents include an innovative method for evaluating the ultraviolet protection effect of measurement samples applied on substrates. This evaluation method involves measuring changes in the spectral transmission spectrum over time when exposed to light that includes ultraviolet, visible, and infrared components. The method establishes a correlation between light irradiation time and erythema effective dose, ultimately calculating an in vitro rSPF predictive value for the measurement sample.
Another notable patent is for a skin substitute membrane designed for external preparations. This membrane features a unique surface with a groove-shaped depressed portion and a planar area, optimized for specific roughness and transmittance properties. The design aims to enhance the effectiveness of skin treatments by ensuring adequate light transmittance.
Career Highlights
Throughout his career, Masato Hatao has worked with esteemed companies such as Shiseido Company, Limited and Hamamatsu Photonics K.K. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of ultraviolet protection.
Collaborations
Hatao has collaborated with notable colleagues, including Yoshimasa Miura and Hiroshi Fukui. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Masato Hatao is a distinguished inventor whose work in ultraviolet protection technologies has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to improving safety and effectiveness in skin protection.