Participated · Series A · Aug 2026

Sinumy develops fully hands-free authentication technology that leverages smartphones' Bluetooth to identify people and automatically perform authentication for gates, payments, and access control. The company reports it has improved positioning accuracy from roughly 1.5 meters to about 10 centimeters, aiming to provide fast and spoof-resistant authentication even in crowded environments. In March it conducted a hands-free authentication gate demonstration at Shirokanedai Station in collaboration with Tokyo Metro and Toshiba. Following the recent financing, Sinumy plans productization and mass production preparation for smart gates and smart spots and intends to expand joint development and PoCs in gate, access control, and payment areas. The company also plans to hire development and business development personnel and strengthen its organization, and has appointed Tomoya Yonaga as Director and COO and Shunji Yamanaka as a UI/UX advisor.

Participated · Series A · Jun 2026

Dioseve is developing ReproNest (development code DIOS-101), a co-culture IVM product that uses ovarian support cell-like cells differentiated from iPS cells to support maturation of immature oocytes. The co-culture approach cultivates patient-derived oocytes together with support cells in the same system and is not intended as a cell therapy for administration into the body. Non-clinical studies reported by the company have shown potential benefits in supporting oocyte maturation compared with conventional IVM culture conditions. The company's technological strength is its proprietary differentiation induction technology, which it says enables efficient induction of oocytes and ovarian somatic cells from iPS cells and production of ovarian support cell-like cells. Dioseve sees applications in fertility preservation (including oocyte freezing), treatment of patients at high risk of OHSS, and rapid fertility preservation before cancer treatment. The recent funding will support validation, manufacturing and quality control setup, reproducibility assessment, regulatory compliance work, and business development to advance ReproNest toward practical application.

Participated · Series B · Jan 2026

EMC Healthcare株式会社 develops and operates OwlCare, an integrated eldercare DX service that combines multiple monitoring sensors and nurse-call functions to ease staff workload, optimize staffing, and reduce turnover in care facilities. The company also offers BabyMoni, an AI-based ceiling-camera system that tracks children’s posture during naps, issues alerts for unsafe positions, and automates record-keeping to free up nursery staff. Proceeds from prior Series A funding were used to complete OwlCare’s core development, leading to deployments in special nursing homes and fee-based eldercare residences. EMC Healthcare is now collaborating with medical and research institutions to create new data-driven care models. Following its new Series B raise, the firm plans to strengthen customer support, expand manufacturing capacity in Nagano’s south region, extend OwlCare to regional and in-home care settings, and deepen utilization of medical-care data. Headquartered in Chiyoda-ku, Tokyo, the company is led by CEO Hitoshi Date. The latest round brings in ¥590 million of fresh capital to accelerate these initiatives.

Participated · Seed · Dec 2025

LEP is an Osaka-based biotechnology startup developing self-illuminating plants that can serve as a new, energy-free light source. The company combines proprietary gene technology, light-intensity control, and color-conversion techniques originating from Osaka University and NAIST patents to produce what it calls “living light.” In April, the team showcased a glowing plant tea-room installation at the Osaka-Kansai Expo, drawing significant domestic and international attention. LEP’s vision is to replace part of the 15% of global energy now consumed by conventional lighting with sustainable, soothing plant-based illumination. The firm targets indoor and outdoor applications that deliver both aesthetic appeal and CO₂ reduction. Fresh capital will be used to launch an exhibition service employing luminous plant cells, create new glowing plant varieties, and hire talent for business expansion. The recent ¥160 million seed infusion strengthens its R&D and commercialization efforts, though the company has not yet disclosed revenue or user numbers.

Participated · Series D · Dec 2025

FullDepth is a Japanese industrial underwater drone manufacturer founded in 2014 that builds and sells domestically produced remotely operated vehicles (ROVs). In addition to hardware, the company offers underwater measurement and data analytics services to support infrastructure maintenance, offshore wind power, and other marine industries. Its platform aims to digitalize submerged assets by capturing and analyzing high-precision data, tackling Japan’s pressing need for efficient and safe underwater inspections. The firm seeks to alleviate labor shortages and safety risks associated with manual diving operations. Current priorities include boosting its data collection and analytics capabilities and widening the scope of its service offerings. With fresh capital, FullDepth will accelerate R&D on AI-driven autonomous underwater vehicles (AUVs) to enable automated, wide-area surveys. No revenue, customer, or other operating metrics were disclosed in the announcement.