Location History:
- Sagamihara, JP (2006)
- Kawasaki, JP (1992 - 2007)
Company Filing History:
Years Active: 1992-2007
Title: The Innovative Mind of Hiroyuki Rokugawa
Introduction
Hiroyuki Rokugawa is a notable inventor based in Kawasaki, Japan. With a remarkable portfolio of 17 patents, his innovative contributions have significantly advanced the field of electronic engineering. Rokugawa's latest patents showcase his expertise in light output control and ultra-high-speed signal transmission, proving his position as a leading figure in inventiveness.
Latest Patents
Rokugawa's recent patents highlight his technical prowess. One of his latest innovations is a **Light Output Control Circuit**. This invention utilizes a switching signal from a coarse/fine switching and operation mode switching circuit to enhance the width of change of a counter control value during power-up. Once a steady state is achieved, the width of change is reduced, ensuring a stable operation with limited frequency updating controlled by an update permit circuit. Additionally, in a steady state, the frequency band of a current source in a laser diode (LD) driving circuit is also narrowed, optimizing performance.
Another significant patent is for a **Differential Amplifier**. This invention is specifically designed for ultra-high-speed signal transmitting apparatuses. It incorporates a first inductor positioned between a differential transistor and a gate-grounded transistor, along with an optional second inductor placed between a load resistor and a power supply. An optional third inductor is also integrated between a source follower transistor and an output terminal, showcasing Rokugawa’s attention to detail and innovation.
Career Highlights
Throughout his career, Hiroyuki Rokugawa has worked with esteemed companies including **Fujitsu Corporation** and **Fujitsu Limited**. His tenure at these organizations enabled him to collaborate on groundbreaking technologies and deepen his expertise in electronic systems and circuit design.
Collaborations
Rokugawa has collaborated with notable colleagues such as **Nobuhiro Fujimoto** and **Tadashi Ikeuchi**, contributing to a vibrant exchange of ideas and innovative solutions within their projects. These collaborations have greatly influenced the advancements seen in their respective fields.
Conclusion
In conclusion, Hiroyuki Rokugawa stands out as a pivotal inventor whose work continues to impact electronic engineering. His 17 patents, including cutting-edge light output control mechanisms and differential amplifiers, demonstrate his commitment to innovation. As companies and researchers continue to build upon his inventions, Rokugawa's legacy in the world of technology will undoubtedly endure.
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.