Company Filing History:
Years Active: 1982-1991
Title: Takuya Hosoda: Innovator in Laser Diode Technology
Introduction
Takuya Hosoda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of laser diode technology, holding a total of 3 patents. His work focuses on developing innovative apparatuses that enhance the evaluation and measurement of laser diodes.
Latest Patents
One of Hosoda's latest patents is an apparatus for generating a pulse-like constant current with a variable pulse width. This device is designed for evaluating the thermal characteristics of laser diodes. It consists of a first constant current circuit using a high-speed amplifier and a second constant current circuit with a low-speed amplifier, connected in parallel. The apparatus includes a bias circuit to increase the output voltage of the second circuit and a switching circuit that operates based on timing signals. This allows for precise control over the pulse width of the current applied to the laser diode, facilitating accurate measurements of light emission characteristics.
Another notable patent is a radiation characteristic measuring apparatus for laser diodes. This device applies an AC signal and a step-like DC voltage to the laser diode, measuring the radiant power output with a photodiode. The design incorporates a first amplifier, transformer, capacitor, and AC amplifier to extract the AC signal. The apparatus features switches that protect measurements from DC voltage changes, ensuring reliable data collection.
Career Highlights
Takuya Hosoda is currently employed at Ando Electric Company, where he continues to innovate in the field of laser technology. His expertise and inventions have positioned him as a key figure in advancing laser diode applications.
Collaborations
Throughout his career, Hosoda has collaborated with notable colleagues, including Yasuo Nihira and Shoji Adachi. Their combined efforts have contributed to the development of cutting-edge technologies in the industry.
Conclusion
Takuya Hosoda's contributions to laser diode technology through his innovative patents and collaborations highlight his importance in the field. His work continues to influence advancements in the evaluation and measurement of laser diodes, showcasing the impact of his inventions.