Two people on a boat looking out over the oyster rafts

About

Technology that takes the trouble out of working at sea.

SeatecHIROSHIMA was founded in 2021 in Kure, Hiroshima. We are taking one technology that treats the surface of materials into two kinds of use: making ships and fishing gear harder for marine life to grip, and helping life take hold in seagrass beds and farm soil. With the same thinking, we also work on ocean data that shows where oyster rafts are.

Our Story

It started with barnacles on an oyster raft.

Our co-representative, Michio Imai, was working to connect people with disabilities with jobs in farming and fishing when a visit to a Hiroshima oyster farm showed oysters buried under barnacles. Oyster farmers told us that about 40% of the oysters that barnacles settle on die, and as many as 90% in some places. At the time, there was nothing to be done about it. In 2020, the “Shido Next Innovator” program run by METI and JETRO brought Imai together with Hayato Chishaki and Masahiko Mori, and the three began looking for a way to stop marine life settling in the first place rather than scraping it off afterwards. The answer turned out to be the surface-treatment technology of Kensuke Kuroda (Representative, Nagoya Surface Technology; Specially Appointed Professor, Institute of Innovation for Future Society, Nagoya University).

Checking an oyster rope on the boat Oyster shells with barnacles on the shore

Vision, mission and principle

Vision
To connect people and the ocean around the world through technology, and build a sustainable marine industry.
Mission
To solve the inconvenience, disadvantage and inefficiency in the marine industry with technology.
Principle
To put what is right before profit, and to act with compassion for others.

Company facts

Our development site at Marine Craft Kazenoko’s 2nd factory
Company name
SeatecHIROSHIMA Ltd.
Japanese name
株式会社シーテックヒロシマ
Founded
June 2021
Head office
Kure Support Core Room 9, 2-10-1 Aga-minami, Kure, Hiroshima 737-0004, Japan
Development site
Marine Craft Kazenoko, 2nd factory (Kure, Hiroshima)
Corporate number
9240001058063
Officers
Co-Representative, COO: Hayato Chishaki
Co-Representative, CEO: Michio Imai
Director, CMO: Masahiko Mori
Technical supervision
Kensuke Kuroda
Representative, Nagoya Surface Technology
Specially Appointed Professor, Institute of Innovation for Future Society, Nagoya University (2020–)
Supervises the technology in a personal capacity

Track record

Jun 2021
Founded SeatecHIROSHIMA Ltd.
2022
Selected for the JETRO SCAP Global Preparation Course
2022
Selected for the Hiroshima Global Unicorn Incubator Advanced Program
2022
Selected for HIROSHIMA UNICORN 10 STARTUP ACCELERATION (Hiroshima Prefecture)
2023
X-Tech Innovation 2023, Kyushu: Special Jury Prize, StarFlyer Prize and EY ShinNihon Prize
Dec 2023
Sta★rt-up Pitch Japan (5th), Chugoku-Shikoku block: Resona Bank Prize and Audience Prize; reached the final
Oct 2024
Shenzhen Innovation Pitch 2024, Japan round: selected for the final in Shenzhen
Dec 2024
MITANI Business Contest 2024: DEFTA Partners Prize and Business Engineering Prize
May 2025
Moved our development site to Marine Craft Kazenoko’s 2nd factory
May 2025
Spoke at Kure Marine Expo 2025
Sep 2025
Leave a Nest Marine Tech Grand Prix 2025: finalist
Sep 2025
Selected for the FY2025 Survey Project for Attracting Startups to Noto
Oct 2025
Joined Hiroshima University’s JST COI-NEXT centre for a marine cultural city built on ocean remote-sensing technology, as one consortium company
Nov 2025
SIH International Business Contest 2025: Grand Prix (Science Lab. category, 1st place)
Nov 2025
Mirai Works Booster 2025: Okumura Corporation Prize
Dec 2025
Appeared on BS11 “NEXT company”
Feb 2026
Selected for the Nature Governance Startup Program, part of the Tokyo Metropolitan Government’s TOKYO SUTEAM
Mar 2026
Signed the Town & Gown joint research contract (Kure City and Hiroshima University) with Hiroshima University, Marine Craft Kazenoko and Inet Co., Ltd.
May 2026
Spoke at Kure Marine Expo 2026
Jun 2026
Selected for Phase 2 (field trials) of the Nature Governance Startup Program, TOKYO SUTEAM
Oct 2026
Startup Business Plan Contest Ishikawa 2026: Best Entrepreneur Award

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