Location History:
- Yokohama, JP (1983 - 2000)
- Osaka, JP (2018)
- Tokyo, JP (1989 - 2021)
Company Filing History:
4 out of 487 
3 out of 34 
2 out of 229 
Years Active: 1983-2021
Title: Tsutomu Fukushima: Innovator in Contact Lens Technology
Introduction
Tsutomu Fukushima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical devices, particularly in the development of soft contact lenses. With a total of nine patents to his name, Fukushima's work has advanced the technology and usability of contact lenses.
Latest Patents
Fukushima's latest patents include a soft contact lens designed to suppress attachment to the cornea. This innovative lens features a low water content or no water content, with a unique structure comprising a circular central part, an intermediate part, and an outer edge part. Each part has different radii of curvature, ensuring optimal fit and comfort. Another recent invention is an annular device that enhances stability when worn over the eyeball. This device includes an opening for the cornea and grooves that improve its fit and functionality.
Career Highlights
Throughout his career, Tsutomu Fukushima has worked with prominent companies such as Nippon Kokan Kabushiki Kaisha and Seed Company Limited. His experience in these organizations has contributed to his expertise in optical technology and innovation.
Collaborations
Fukushima has collaborated with notable individuals in his field, including Kiyoshi Kawasaki and Sadayuki Sasaki. These partnerships have fostered advancements in contact lens technology and have led to the successful development of his patented inventions.
Conclusion
Tsutomu Fukushima's contributions to the field of contact lenses demonstrate his innovative spirit and dedication to improving optical devices. His patents reflect a commitment to enhancing user experience and comfort in vision correction.