Shintaro Takehara

Title: Shintaro Takehara - Innovating Optical Disk Technology in Yokohama

Introduction

Shintaro Takehara is an esteemed inventor based in Yokohama, Japan, known for his impactful contributions to the field of optical disk technology. With a remarkable portfolio of 11 patents, Takehara's inventions continue to advance the functionality and efficiency of optical disk apparatuses.

Latest Patents

Among his latest groundbreaking patents is the "Tracking error detection device and tracking error detection method for optical disk apparatus." This invention features a detecting unit composed of at least two detectors that identify reflected light from a series of pits on an optical disk. The device incorporates a phase comparing unit that measures the phase difference of the outputs from the detectors, in conjunction with a low-pass filter that smooths the phase comparing unit's output. The cut-off frequency of the low-pass filter is expertly designed to optimize to specific frequency ranges of the modulation code spectrum recorded on the disk.

Another noteworthy patent is the "Optical disk unit capable of restraining changes in light quantity." This innovation involves an optical head device coupled with an optical disk unit, which utilizes a relay lens control unit for adjusting the lenses based on signals from a first optical detector. Additionally, it features a power control circuit that regulates the intensity of the emitted light beam from a light source, significantly contributing to the stability and reliability of optical disk operations.

Career Highlights

Currently, Shintaro Takehara is employed at Kabushiki Kaisha Toshiba, where he continues to drive innovation within the company. His extensive experience and dedication to advancing optical technologies have marked him as a key figure in the industry.

Collaborations

Throughout his career, Takehara has collaborated with notable colleagues, including Maho Kuwahara and Katsuo Iwata. These partnerships not only enhance the creative process but also foster an environment of shared knowledge and expertise within their innovative endeavors.

Conclusion

Shintaro Takehara's contributions to optical disk technology exemplify the spirit of innovation. With a solid foundation of patents and collaborative efforts in a leading technology company, his work continues to inspire future advancements in the field. As he continues to innovate, Takehara remains a pivotal figure in shaping the future of optical technology in Yokohama and beyond.