CellSeed Inc. CellSeed Inc. (7776.T) engages primarily in the research, development, commercialization, and sale of cell sheet regenerative medicines and related support products. The company offers epithelial cell sheets for esophageal and corneal regeneration, regenerated cartilage sheets, chondrocyte sheets for knee osteoarthritis treatment, and cardiac patches for heart disease; it also provides intelligent cell cultureware including UpCell temperature-responsive dishes for cell-sheet engineering, RepCell for cell collection, HydroCell low cell binding cultureware, ThermoPlate III heating elements, and cellZscope automated monitoring systems, alongside contract development and manufacturing services for cell products through its in-house cell processing facility. Founded in May 2001 and headquartered at 15F East Wing, Telecom Center Building, 2-5-10 Aomi, Koto-ku, Tokyo, Japan, CellSeed Inc. operates in the biotechnology sector with a focus on regenerative medicine, serving clinical trials, research institutions, and global markets primarily in Japan and internationally through sales of cultureware since 2008. In recent developments, the company commenced Phase 3 clinical trials for its esophageal epithelial cell sheet following Sakigake Designation in 2017, is preparing a Phase 3 submission for allogeneic chondrocyte cell sheets, established Up Cell Biomedical Inc. in Taiwan in 2020 as a subsidiary, launched the Aomi Cell Cultureware Innovation Center in 2021 for new equipment development, transitioned to a Company with an Audit and Supervisory Committee in 2021, moved to the Tokyo Stock Exchange Growth Market in 2022 amid exchange reorganization, and cancelled its business alliance with Taiwan's MetaTech(AP) Inc. in December 2023.