This inventor holds 4 USPTO granted patents. Top assignee: Sumitomo Electric Industries, Limited. Active years: 1998-2005.
Company Filing History:
Years Active: 1998-2005
Title: Atsushi Hamakawa: Innovator in Light Technology
Introduction
Atsushi Hamakawa is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of light technology, holding a total of 4 patents. His work focuses on developing advanced light-generating modules and semiconductor laser modules that enhance optical performance.
Latest Patents
One of his latest patents is a light generating module that comprises a housing, a semiconductor light-emitting device, a driving element, and a monitoring light-receiving device. The monitoring light-receiving device is optically coupled with the semiconductor light-emitting device. The driving element drives the semiconductor light-emitting device, while the housing contains all these components, which are disposed sequentially along a predetermined axis. This configuration allows the driving element to be positioned close to the semiconductor light-emitting device, achieving a transmission rate of 10 Gbps without degrading the optical coupling between the devices.
Another notable patent is a semiconductor laser module designed to shorten the distance between a semiconductor laser chip and a diffraction grating. This innovation stabilizes the light output spectrum and ensures that the output characteristics do not fluctuate due to external conditions. The module features a diffraction grating structure constituted in an optical fiber by at least two diffraction gratings, reflecting light with different wavelengths respectively.
Career Highlights
Atsushi Hamakawa is currently employed at Sumitomo Electric Industries, Limited, where he continues to push the boundaries of light technology. His work has been instrumental in developing solutions that enhance the efficiency and reliability of light-emitting devices.
Collaborations
He has collaborated with notable coworkers, including Goro Sasaki and Takashi Kato, contributing to various projects that advance the field of optical technology.
Conclusion
Atsushi Hamakawa's innovative work in light technology has led to significant advancements in the industry. His patents reflect a commitment to improving optical performance and reliability, making him a key figure in the field.