Location History:
- Mito, JP (1992 - 1993)
- Atsugi, JP (2004)
Company Filing History:
2 out of 5,291 
1 out of 16 Years Active: 1992-2004
Title: Tsutomu Kitou: Innovator in Optical Signal Processing
Introduction
Tsutomu Kitou is a notable inventor based in Mito, Japan. He has made significant contributions to the field of optical signal processing, holding a total of 3 patents. His work focuses on enhancing the efficiency and effectiveness of optical circuits.
Latest Patents
One of his latest patents is a waveguide-type optical signal processing circuit. This invention aims to reduce the size of circuits and minimize the adverse effects of fabrication errors while increasing yield. The design allows signal light to propagate through the circuit in a counterclockwise direction before exiting through output waveguides. This innovative approach enables a reduction in circuit size compared to prior art. Another significant patent is for an electrically controlled optical device. This device features a traveling wave electrode, a shield conductor, and a thick buffer layer of low dielectric constant. The design optimizes the effective index of microwaves and light, reducing conductor loss and improving impedance matching with external microwave circuits.
Career Highlights
Throughout his career, Tsutomu Kitou has worked with prominent companies, including Nippon Telegraph and Telephone Corporation and Nippon Telegraph & Telephone Co. His experience in these organizations has contributed to his expertise in optical technologies.
Collaborations
He has collaborated with notable colleagues such as Kenji Kawano and Toshinori Nozawa, further enhancing his contributions to the field.
Conclusion
Tsutomu Kitou's innovative work in optical signal processing has led to advancements that improve circuit efficiency and reduce size. His patents reflect a commitment to pushing the boundaries of technology in this field.