Toyo Seikan Group Holdings, Ltd.

Shinji Kubo

Akihiko Fujiwara

Mari Nishi

Katsuhiro Muramoto

Jun Agari

Kazuto Yoshimura

Kunio Murai

Takahiro Kamiya

Shinichirou Matsumoto

Akane Itoh

A hydroponic system () is provided with a light-collecting apparatus () having a pair of reflecting plates () that are vertically arranged in parallel with a culture surface () of a culture panel () of a hydroponic unit (). During a process in which natural light taken from a light-collecting opening () propagates while repeatedly reflected by opposing reflecting surfaces of a reflecting plates (), by allowing seedlings p that are transplanted into the culture panel () to be irradiated with the light through a light-emitting hole () bored in the reflecting plate (), a culture object can be grown efficiently at a low cost by taking natural light from the outside.

Hydroponic system

Growing community of inventors

Osaka, Japan

Shinji Kubo