Company Filing History:
Years Active: 1998-2003
Title: Shigeki Takeuchi: Innovator in Optical Pickup Technology
Introduction
Shigeki Takeuchi is a prominent inventor based in Yamaga, Japan. He has made significant contributions to the field of optical technology, particularly in the development of optical pickup apparatuses. With a total of 5 patents to his name, Takeuchi's work has paved the way for advancements in data storage and retrieval systems.
Latest Patents
One of Takeuchi's latest patents is an optical pickup apparatus designed to be small-sized and inexpensive while maintaining high assembly accuracy. This innovative apparatus incorporates a various-purpose semiconductor laser, an integrated optical assembly for guiding outgoing light to an optical disk, and a light receiver that converts the received light into an electrical signal. The design allows for a compact and cost-effective solution, enabling accurate assembly and efficient detection of optical power.
Another notable patent is a method of manufacturing an integrated optical pick-up. In this invention, light emitted from a light-emitting element is transmitted through a first beam splitter film with polarization selectivity. This process produces a zero-order diffraction beam and two first-order diffraction beams, which are then applied to an optical disk through a condensing element. The return light beam is directed to a photodetector via a second beam splitter film, facilitating the recording and reproduction of information, as well as tracking and focusing. The inclusion of a diffusion angle conversion hologram ensures that the light incident on the condensing element is free from wave aberration, allowing for high-quality signal detection.
Career Highlights
Shigeki Takeuchi is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in enhancing the performance and efficiency of optical devices, contributing to the advancement of data storage technologies.
Collaborations
Throughout his career, Takeuchi has collaborated with notable colleagues, including Toshihiro Koga and Shogo Horinouchi. These collaborations have further enriched his work and led to the development of groundbreaking technologies in optical systems.
Conclusion
Shigeki Takeuchi's contributions to optical pickup technology have significantly impacted the industry. His innovative patents and collaborative efforts continue to drive advancements in data storage solutions.