Location History:
- Sakai, JP (1978)
- Sawa, JP (1988)
- Isesaki-shi, JP (2011)
- Gunma, JP (1978 - 2013)
- Isesaki, JP (2011 - 2013)
Company Filing History:
42 out of 8,782 
35 out of 70 
2 out of 69 Years Active: 1978-2013
Areas of Expertise:
Title: Ryoichi Kawasaki: Innovating Light Emitting Devices
Introduction: Ryoichi Kawasaki, based in Gunma, Japan, has made significant contributions to the field of optical technology with an impressive portfolio of 42 patents. His work primarily focuses on advancements in light emitting devices and optical pickup apparatuses, showcasing his dedication to improving optical disc technology.
Latest Patents: Among Kawasaki's latest innovations are his patents for a light emitting device and an optical pickup apparatus. The light emitting device aims to enhance CD read/write characteristics that typically exhibit poor image height characteristics. This innovation involves integrating a third light emitting source which emits a laser beam specifically for CDs along the optical axis of an objective lens, effectively eliminating coma aberration in the emitted laser beam. Additionally, his optical pickup apparatus features a three-wavelength-laser diode, which combines first, second, and third laser elements within a single case to emit laser beams with distinct wavelengths. This design allows for precise focusing of the beams onto multiple optical disc signal recording layers, ensuring superior performance.
Career Highlights: Throughout his career, Ryoichi Kawasaki has had the opportunity to work with notable companies such as Sanyo Electric Co., Ltd. and Sanyo Optec Design Co., Ltd. His experiences at these organizations have enabled him to refine his expertise in optical technology, leading to the development of his innovative patents.
Collaborations: In his pursuit of innovation, Kawasaki has collaborated with fellow experts like Tohru Hotta and Hiroyuki Shindo. Their combined efforts in research and development have contributed to the advancement of technology within the optical field, further enhancing the capabilities of optical devices.
Conclusion: Ryoichi Kawasaki's relentless pursuit of innovation in optical technology has resulted in numerous patents that reflect his expertise and foresight. His work on light emitting devices and optical pickup apparatuses not only showcases his commitment to improving existing technologies but also sets the stage for future developments in the industry. With a strong foundation built on collaboration and extensive experience, Kawasaki continues to be a significant figure in the world of engineering and optical technology.