connected life for the future
Greeting
「As a professional technology company, we will actively work to solve social issues.」
Kyushu Ten was founded in December 1967 in Sasebo City, Nagasaki Prefecture. Starting from the repair of wireless equipment, we have expanded our business areas to include manufacturing, computer equipment maintenance, construction, hardware development, software development, and repair, and celebrated our 55th anniversary on December 1, 2022.
As mentioned above, our business areas are diverse, but can be broadly divided into services (Koto) and manufacturing (Mono). We will weave synergy between these two pillars to solve social issues such as the SDGs. To this end, we will further promote the development of human resources by enhancing our education system and career paths, and move forward in unison with the vector and pace of the entire company.
Last year (2023), our company was selected as a “Fukuoka Prefecture SDGs Registration” and “Nagasaki Women's Empowerment Promotion Company Award”, and was also certified as a “2024 KENKO Investment for Health Outstanding Organizations” by the Ministry of Economy, Trade and Industry. While promoting health management, we will continue to play a role in achieving the SDGs and a genderless society.
We will continue to uphold our corporate philosophy of “Customers first” and “Establishment of sensibility type company,” and together with our employees, we will continue to take on challenges in our 60th and 70th anniversaries, and contribute to the creation of a sustainable society.
June 2024
CEO Ichiro Maeda
Business contents
QRIoTⅡ
ACE.MediStation
Sasebo Head Office Factory
Manufacturing Equipments
Test Equipments
Technology of antenna
High freqency antenna for 5G
We have designed and evaluated a millimeter-wave-compatible 4x4 array antenna for 5G in an industry-university joint research with Kyushu University, and submitted the results to IEEE for publication.
Outline
Patch antennas are frequently used in broadband communications such as 28 GHz. However, patch antennas have a large GND metal and require a thick dielectric substrate, and this size becomes a bottleneck when pursuing further miniaturization of IoT devices. Therefore, in a previous joint research with Kyushu University, we designed and evaluated a 4x4 beamforming array antenna using a one-sided directional slot antenna with the same performance, which has an upper antenna layer, a lower floating metal, and a thin dielectric substrate without a large GND metal layer. The results were obtained and are summarized in the paper.
Researchers
Prof. Haruichi Kanaya, Takuhiro Ide, Kyushu University
Assistant Professor Chai-Eu Guan, Nagasaki University
KYUSHU TEN LIMITED Akira Ishikawa, Shugo Fukagawa, Ryuji Kitaya
Proceedings of 2020 IEEE International Symposium on Radio-Frequency Integration Technology, 169-171, 2020.
IEEE URL
