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Location History:
- Tokyo, JP (1983 - 1999)
- Yokohama, JP (1990 - 2006)
- Kanagawa, JP (1985 - 2007)
- Kanagawa-ken, JP (2006 - 2007)
Company Filing History:
67 out of 90,594 
2 out of 832,680 Years Active: 1983-2007
Title: The Innovative Contributions of Keiji Ohtaka
Introduction: Keiji Ohtaka, based in Yokohama, Japan, is a prolific inventor with an impressive portfolio comprising 69 patents. His work primarily focuses on advancements in optical technologies, including complex systems that enhance the performance of optical devices.
Latest Patents: Ohtaka's latest innovations include a "Polarization Beam Splitter and Optical System Using the Same," which features a specialized polarized beam splitting layer. This layer consists of a series of gratings that are arranged in a manner to effectively transmit and reflect light based on its polarization direction. Additionally, he has developed a "Polarization Element and Optical Device Using Polarization Element," which offers a high-performance solution for polarization splitting, utilizing distinct periodic structures to manage light transmission and reflection.
Career Highlights: Throughout his career, Keiji Ohtaka has made significant contributions while working with Canon Kabushiki Kaisha, where he applied his expertise to various optical technologies. His innovations have not only advanced the capabilities of devices but have also pushed the boundaries of research in the optical field.
Collaborations: Ohtaka has collaborated with notable individuals in the field, including Yasuo Suda and Akira Ishizaki. These collaborations have further expanded his reach in the context of inventor projects and patent applications, culminating in high-impact inventions that benefit various applications in optics.
Conclusion: The work of Keiji Ohtaka exemplifies the spirit of innovation in optical technology. With a robust patent portfolio and collaborative efforts enhancing his inventions, Ohtaka continues to lead in the development of cutting-edge optical systems that hold promise for future advancements. His commitment to research and innovation underscores his significance within the field.
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