Company Filing History:
10 out of 42,508 
2 out of 203 
1 out of 134 Years Active: 1993-2009
Title: Hideo Sotokawa: Innovator in Optical Technology
Introduction
Hideo Sotokawa is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, holding a total of 13 patents. His work focuses on enhancing the performance and reliability of optical devices, particularly in the context of optical disk drives.
Latest Patents
Sotokawa's latest patents include an optical pickup device and a manufacturing method thereof. This invention aims to provide an optical pickup device where an optical parts module is fixedly adhered with high positional precision to an optical pickup case. The design enhances adhesion strength against stress applied from a flexible printed circuit board connected to the optical parts module. The invention features adhering faces formed on at least two portions across the optical axis of the optical parts module, along with groove portions on the surfaces of both the optical parts module and the optical pickup case.
Another notable patent is for an optical disk drive apparatus that incorporates a flexible substrate and wiring conductors. This invention improves the reliability of optical disk drive apparatuses at a low cost. The flexible substrate connects the optical pickup device to the drive side and is divided into two parts: a first flexible substrate fixed to the optical pickup body and a second flexible substrate extending to the drive. The wiring conductors on both substrates are superposed and connected, ensuring a robust connection while protecting the optical pickup device body.
Career Highlights
Throughout his career, Hideo Sotokawa has worked with notable companies such as Hitachi, Ltd. and Hitachi Media Electronics Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.
Collaborations
Sotokawa has collaborated with several talented individuals in his field, including Hidetaka Shigi and Haruhiko Matsuyama. These collaborations have contributed to the advancement of optical technologies and the successful development of his patents.
Conclusion
Hideo Sotokawa is a distinguished inventor whose work in optical technology has led to significant advancements in the industry. His innovative patents and collaborations reflect his commitment to enhancing the performance and reliability of optical devices. His contributions continue to influence the field and inspire future innovations.