This inventor holds 4 USPTO granted patents. Top assignees: Nippon Electric Co., Ltd., Nec Corporation, Nippon Telegraph and Telephone Public Corporation. Active years: 1976-1987.
Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1981 - 1987)
Company Filing History:
3 out of 1,038 
1 out of 36,676 
1 out of 522 Years Active: 1976-1987
Title: The Innovations of Mitsuhito Sakaguchi
Introduction
Mitsuhito Sakaguchi is an accomplished inventor based in Tokyo, Japan, known for his significant contributions to the field of semiconductor technology. With a portfolio that includes four patents, Sakaguchi has established himself as an innovative force in the industry, developing technologies that have a profound impact on optical and electronic systems.
Latest Patents
Among his latest inventions is the "Semiconductor Laser Apparatus with Isolator." This apparatus comprises a semiconductor laser diode, a mounting for the laser diode, and a casing designed with a window through which light from the diode passes. The casing is hermetically sealed, ensuring the integrity of the laser diode. Notably, a magneto-optical member is strategically positioned between the end face of the laser diode and the window, featuring spontaneous magnetization aligned with the direction of light transmission, effectively enhancing performance through applied magnetic fields.
Another remarkable invention by Sakaguchi is the "Electro-Optical Light Modulators for Light Wavelength Multiplex Signal." This modulator employs a crystal that exhibits an electro-optical effect, facilitating the rotation of the principal axes of the refractive index ellipsoid. It incorporates multiple juxtaposed electrodes with varying periods and means for applying modulation signals to each. When light, generated by a source with a light spectrum exceeding a half-value bandwidth of 100 Å, passes through this modulator, it produces a light wavelength multiplex signal transmitting apparatus. Additionally, the integration of a birefringence body on the output side leads to the creation of a light wavelength separating switch.
Career Highlights
Sakaguchi has had a notable career, contributing his expertise to prominent companies such as Nippon Electric Co., Ltd. and NEC Corporation. His work in these reputable organizations has not only allowed him to innovate but also to influence the direction of technology within the semiconductor industry.
Collaborations
Throughout his career, Mitsuhito Sakaguchi has collaborated with esteemed colleagues, including Yoshinori Ohta and Isamu Sakuma. These partnerships have fostered a collaborative spirit that has led to advancements in their respective fields, further enhancing the quality and innovation of their work.
Conclusion
Mitsuhito Sakaguchi's contributions to the field of semiconductor technology are invaluable. With his groundbreaking patents and seasoned experience, he has played a pivotal role in shaping the landscape of optical and electronic innovations. His relentless pursuit of excellence continues to push the boundaries of what is possible in technology, inspiring future generations of inventors and innovators.