Company Filing History:
1 out of 99 
1 out of 1 
1 out of 4 Years Active: 1998-2014
Title: The Innovations of Masahiro Nakatsuka
Introduction
Masahiro Nakatsuka, an accomplished inventor based in Ikoma, Japan, has made significant contributions to the fields of optical materials and technologies. With a total of two patents to his name, Nakatsuka has focused his research on enhancing the performance of optical glasses and developing innovative methods for their production.
Latest Patents
Among his latest patents is the invention of a copper-containing silica glass, which emits fluorescence with a peak wavelength range of 520 nm to 580 nm when exposed to ultraviolet light. This invention aims to provide a silica glass with excellent long-term stability, even with high output usage. The formula includes copper in concentrations ranging from 5 wtppm to 200 wtppm, ensuring the material exhibits a high internal transmittance of 95% or more for a thickness of 2.5 mm at a wavelength of 530 nm.
In another groundbreaking innovation, Nakatsuka developed a method and apparatus for forming optical surfaces through optical etching. This invention addresses the defects commonly found in optical glass and plastics, enabling high-precision aspherical processing. The method uses a combination of optical glass matrix and resin coating, with an interferometer to measure the reflective wavefront of the lens, allowing for precise monitoring and adjustment during processing using ultraviolet laser beams.
Career Highlights
Throughout his career, Nakatsuka has worked with reputable companies including Shin-Etsu Quartz Products Co., Ltd., and Opto-Electronics Laboratory, Inc. His experience in these organizations has been instrumental in advancing his expertise and facilitating his innovative research into optical materials.
Collaborations
Masahiro Nakatsuka has collaborated with notable colleagues such as Tetsuji Ueda and Michinari Ohuchi. Their combined efforts in the realm of optical technology have contributed to significant developments in the industry, showcasing the importance of teamwork in scientific innovation.
Conclusion
Masahiro Nakatsuka's work exemplifies the spirit of innovation within the field of optical technology. With his patents addressing key challenges in the production and performance of optical materials, Nakatsuka has positioned himself as a leading inventor committed to advancing optical science for various practical applications. His collaborations and career experiences underscore the collaborative nature of invention, driving progress in the industry.