Location History:
- Yokoyama, JP (1997)
- Yokohama, JP (2004)
Company Filing History:
Years Active: 1997-2004
Title: Innovations by Koichiro Tonehira
Introduction
Koichiro Tonehira is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical communications, holding a total of 2 patents. His work focuses on developing economical high-speed optical communication technologies.
Latest Patents
Tonehira's latest patents include an optical module and an optical transceiver. The optical module aims to provide economical high-speed optical communications through a silicon substrate that features a ball lens and a semiconductor luminescence element. This innovative design includes a laser driver IC and a silicon subassembly with a pyramidal cavity etched into the substrate. The ball lens is precision-mounted in the pyramidal cavity, ensuring a high-strength connection while maintaining a small and cost-effective silicon substrate. Additionally, the optical transceiver patent describes an optical semiconductor array module that comprises multiple semiconductor laser diode and light-emitting diode elements. This module is designed to enhance the efficiency of optical communications by integrating an electronic device for driving and controlling the optical semiconductor array.
Career Highlights
Koichiro Tonehira is currently employed at Hitachi, Ltd., where he continues to push the boundaries of optical technology. His work has been instrumental in advancing the capabilities of optical communication systems, making them more efficient and accessible.
Collaborations
Throughout his career, Tonehira has collaborated with esteemed colleagues such as Kazuyuki Fukuda and Makoto Shimaoka. These partnerships have fostered innovation and contributed to the successful development of his patented technologies.
Conclusion
Koichiro Tonehira's contributions to optical communications through his innovative patents highlight his expertise and commitment to advancing technology. His work at Hitachi, Ltd. continues to influence the field, paving the way for future advancements in high-speed optical communication systems.