KO

Kiyotaka Obunai

SE Sunstar Engineering: 2 patents #18 of 120Top 15%
TD The Doshisha: 1 patents #48 of 175Top 30%
📍 Kyotanabe, JP: #51 of 101 inventorsTop 55%
Overall (All Time): #2,039,408 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9188177 Brake disc Toru Fujii, Kazuya Okubo, Yoshihisa Kubota, Hideaki Okada, Tsuyoshi Nakatsuji 2015-11-17
8267228 Brake disc having corrugated outer periphery Yoshio Hoshi, Tsuyoshi Nakatsuji, Tooru Fujii, Kazuya Ookubo 2012-09-18