Corporate Philosophy


SEL was established in 1980, aiming to contribute to the world’s progress by transmitting fruits of innovative research and development pertaining to forthcoming needs of society. SEL’s core philosophy is “progress based on creation” which is a teaching of Dr. Yogoro Kato, the mentor of Founder Yamazaki.

SEL performs R&D process including simulation, design, fabrication, reliability evaluation, analysis, and measurement, and patent acquisition and enforcement to be completed in-house. Furthermore, we believe that technologies can contribute to the industry development only when utilized by others. We strive to develop technologies for practical use.

The origin of company's name

The origin of company's name
The company’s name originates from solar batteries which were R&D themes at the time of our establishment.
Then, our R&D themes have changed and we developed semiconductor processing technology acquired through the development of solar batteries. Now, we focus on R&D of crystalline oxide semiconductors, OLED, and rechargeable battery.

① Semiconductor originates from a solar battery material
② Energy originates from the solar battery process “conversion of light to energy”
③ Laboratory represents “an R&D specialized company”

Our logo features the sun, the sky, and clouds as motifs.

SEL Logo