Company Filing History:
4 out of 10,239 
2 out of 46 
1 out of 78 
Years Active: 2001-2024
Title: The Innovative Mind of Yoshifumi Hishikawa
Introduction
Yoshifumi Hishikawa, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of optical technology. With a total of four patents to his name, Hishikawa is recognized for his innovative solutions that advance the capabilities of optical transmission systems.
Latest Patents
Among his latest patents are the "Optical Transmission Path Inspecting System" and "Optical Transmission Path Inspecting Device." The inspecting device features an optical switch that selectively couples a light source unit with light input/output ports. It incorporates a first light detecting unit that measures the intensity of test light received from an inspecting device on the counterpart side, a second light detecting unit for light directed from the light source, and a third light detecting unit connected to a test optical fiber to record optical path losses. Furthermore, Hishikawa has innovated a measurement system that utilizes a light source and power meter to measure light intensity across optical fiber connections, ensuring efficiency and reliability in optical communication.
Career Highlights
Yoshifumi Hishikawa has held esteemed positions at notable companies, including Sumitomo Electric Industries and Sumitomo Electric Optifrontier. His work at these organizations has significantly contributed to advanced optical technologies, showcasing his expertise in the field.
Collaborations
Throughout his career, Hishikawa has collaborated with talented individuals such as Kenichiro Otsuka and Tetsufumi Tsuzaki. These collaborations have helped foster innovative developments and advancements in optical transmission inspection systems.
Conclusion
Yoshifumi Hishikawa stands out as a prominent figure in the realm of optical technology innovation. His patents reflect a dedication to improving optical transmission systems, making him a valuable contributor to the industry. As he continues to innovate, Hishikawa's work will undoubtedly pave the way for further advancements in this critical field.
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.