Hiromitsu Itamoto

Title: Hiromitsu Itamoto: Innovator in Optical Semiconductor Technology

Introduction

Hiromitsu Itamoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical semiconductor devices, holding a total of 4 patents. His work has been instrumental in advancing technology in this area, particularly through his latest innovations.

Latest Patents

Itamoto's recent patents include an optical semiconductor device and an optical module. The optical semiconductor device features a first conductive pattern on the upper surface of a submount, with a GND pattern on the lower surface. A lower surface electrode of a capacitor is bonded to the first conductive pattern with solder, while an upper surface electrode connects to a light-emitting device. Additionally, a terminating resistor is connected to the first conductive pattern, which has a protruding portion that extends outside the capacitor in planar view. The width of this protruding portion is narrower than that of the capacitor.

The optical module patent describes an optical modulator that includes laser diodes arranged in parallel, each with a different lasing wavelength. Optical waveguides are also arranged in parallel, with their first ends facing the laser diodes. An optical isolator is inserted between the laser diodes and the optical waveguides to attenuate return light. A lens focuses light emitted from the laser diodes onto the optical waveguides through the optical isolator. The optical switch selects one of the light beams exiting from the optical waveguides, and the optical modulator modulates the selected light beam.

Career Highlights

Hiromitsu Itamoto is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and develop new technologies. His work has garnered attention in the field of optical semiconductors, and he is recognized for his contributions to the industry.

Collaborations

Itamoto has collaborated with notable colleagues, including Akihiro Matsusue and Takuro Shinada. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Hiromitsu Itamoto is a key figure in the development of optical semiconductor technology. His innovative patents and contributions to Mitsubishi Electric Corporation highlight his importance in the field. His work continues to influence advancements in optical devices and systems.