2015 - 2019 Proposal for new high-visibility clothing and accessories for the safety of visually disabled pedestrians
2011 - 2015 Development of high-visibility clothing and protective equipment in the prevention of traffic accidents involving disabled wheelchair users
2007 - 2009 Cross-cultural research into the hazard perception of safety colors in East Asia
Ochiai Nobuhisa, Nagaya Hirokazu. Evaluation of the conspicuity of and preference for prototype designs of high-visibility rainwear for wheelchair users. JOURNAL OF THE COLOR SCIENCE ASSOCIATION OF JAPAN. 2017. 41. 3. 167-170
Ochiai Nobuhisa, Nagaya Hirokazu. P-40 Trial Manufacture of High-Visibility Rainwear for Wheelchair Users While Considering Their Color Scheme Preference(Abstracts of the 46th Annual Meeting). 日本色彩学会誌. 2015. 39. 5. 211-212
OCHIAI Nobuhisa. 1P-18 Connections between Traffic Accidents or Close Calls involving Wheelchair Users and Various Factors. The Japanese Journal of Ergonomics. 2015. 51. 0. S376-S377
SUZUKI Kazuya, OCHIAI Nobuhisa, MOTEI Nobuyuki, ASADA Haruyuki, KISHI Kazuaki, YAMAMOTO Takayuki. 1D5-4 Changes in discomfort of body, lower-leg swelling and task performance during simulated desk-work in sitting, standing and sit-stand posture. The Japanese Journal of Ergonomics. 2015. 51. 0. S148-S149