This inventor holds 9 USPTO granted patents, plus 1 CIPO patent and 4 EPO patents. Top assignee: Nec Corporation. Active years: 1993-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993-2002
Title: Hideo Kosaka: Innovator in Optical Technologies
Introduction
Hideo Kosaka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technologies, holding a total of 9 patents. His work focuses on enhancing optical coupling and self-waveguide circuits, which are crucial for advancing communication technologies.
Latest Patents
Among his latest patents is an optical coupling device and optical coupling method using photonic crystal. This innovative device is designed to couple optical waveguide devices with differing spot sizes. It utilizes a photonic crystal that features a modulation structure with a refractive index periodic at intervals comparable to the wavelength of light used by the optical waveguide devices. This technology allows for the conversion of the spot size of light at the emitting end of the photonic crystal to a different size than that at the incident end.
Another notable patent is the self-waveguide optical circuit. This invention forms optical paths by propagating rays or electromagnetic waves. It comprises photonic crystals with a dielectric constant periodic structure, which has a period that substantially corresponds to the wavelength of the propagation rays. By establishing a crystal direction of the photonic crystal, the invention aims to level the dispersion surface, resulting in a bundle of parallel rays. This advancement enhances characteristics such as miniaturization, high integration, high-speed operation, and transmission efficiency.
Career Highlights
Hideo Kosaka has worked with notable companies such as NEC Corporation and Sony Group Corporation. His experience in these leading technology firms has contributed to his expertise in optical technologies and innovation.
Collaborations
Some of his coworkers include Shojiro Kawakami and Kaori Kurihara. Their collaboration has likely fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Hideo Kosaka's contributions to optical technologies through his patents and career achievements highlight his role as a significant innovator in the field. His work continues to influence advancements in optical communication and related technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile