Company Filing History:
Years Active: 2006-2013
Title: Seiji Sumi: Innovator in Optical Technology
Introduction
Seiji Sumi is a prominent inventor based in Yokohama, Japan, known for his significant contributions to the field of optical technology. With a total of five patents to his name, Sumi has made remarkable advancements in semiconductor optical devices and related modules.
Latest Patents
Sumi's latest patents include a semiconductor optical device, an optical transmitter module, an optical transceiver module, and optical transmission equipment. His semiconductor optical device features a buried heterostructure designed to reduce parasitic capacitance, thereby enhancing its performance. The device includes a modulator portion that modulates light input along an emitting direction, utilizing a mesa-stripe structure with an active layer. Additionally, the optical transmitter module and optical module utilize an electro-absorption modulator that maintains stable performance across varying temperatures without requiring a control mechanism.
Career Highlights
Throughout his career, Seiji Sumi has worked with notable companies such as Opnext Japan, Inc. and Oclaro Japan, Inc. His expertise in optical technology has positioned him as a key player in the development of advanced optical communication systems.
Collaborations
Sumi has collaborated with esteemed colleagues, including Hiroyuki Kamiyama and Kenji Uchida, contributing to various innovative projects in the optical field.
Conclusion
Seiji Sumi's work in semiconductor optical devices and modules has significantly impacted the optical technology landscape. His inventions continue to pave the way for advancements in communication systems and optical devices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.