Location History:
- Tsuchiura, JP (1992 - 2005)
- Ibaraki, JP (2005 - 2013)
Company Filing History:
14 out of 1,112 
13 out of 42,496 
6 out of 832,843 Years Active: 1992-2013
Title: Innovations and Contributions of Eiji Koyama in Optical Technology
Introduction
Eiji Koyama, based in Tsuchiura, Japan, is a prolific inventor known for his significant contributions in the field of optical technology. With a remarkable portfolio of 25 patents, Koyama has played a key role in advancing devices that enhance visual experiences, particularly in display and illumination technologies.
Latest Patents
Koyama's latest innovations include the development of an optical adjusting member and illumination device. This optical adjusting member features a base member with optical transparency and several linear members that are also optically transparent. The design incorporates a unique triangular first sectional part and a smaller triangular second sectional part to optimize light manipulation. Additionally, Koyama has pioneered a lighting device that comprises self-luminous elements emitting various wavelengths of light, enhanced by a hemispherical lens structure and translucent spherical particles. This innovative combination results in the mixing of different light wavelengths to produce desired color effects, showcasing Koyama's expertise in creating sophisticated optical solutions.
Career Highlights
Throughout his career, Koyama has worked with renowned companies, including Hitachi Maxell and Hitachi Ltd. His tenure at these organizations has allowed him to contribute extensively to research and development in optical technologies, which have been widely recognized in the industry.
Collaborations
Koyama has collaborated with other talented individuals in the field, including Hiroaki Miwa and Ryoichi Sudo. These partnerships have facilitated the exchange of ideas and expertise, furthering innovation in optical research and applications.
Conclusion
Eiji Koyama is an exemplary figure in the realm of optical inventions, with a wealth of patents that testify to his creativity and technical prowess. His work continues to influence modern optical devices, ensuring that he remains a vital contributor to advancements in technology.