RK

Ryota Kubo

FI Fujifilm Business Innovation: 5 patents #1,714 of 5,238Top 35%
SH Sumitomo Electric Hardmetal: 3 patents #130 of 278Top 50%
JS Jfe Steel: 1 patents #825 of 1,401Top 60%
Overall (All Time): #536,997 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12397356 Cutting tool 2025-08-26
12312552 Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods Yasuhide Ishiguro, Seigo Goto, Takashi Koga, Takamasa Kawai, Seiji Ozaki +6 more 2025-05-27
D1076630 Cutting tool 2025-05-27
D1016349 Position adjusting member for cutting tool 2024-02-27
9482991 Image forming apparatus for transporting collected toner and new toner with reduced clogging Kiyotoshi Kaneyama, Kuniaki Tanaka, Yoshinobu Kariya, Hideaki Ozawa, Yasutomo Ishii +3 more 2016-11-01
8923724 Driving device, cleaning device, charging device, assembly, and image forming apparatus Hirohisa Hoshino 2014-12-30
8862024 Attachable/detachable body and image forming apparatus Taro Mitsui 2014-10-14
8027611 Detachable holding portions in an image forming apparatus Tomokazu Kurita, Junichi Ozawa, Mitsuhiro Matsumoto, Shigeo Ohno 2011-09-27
7860428 Detachable holding portions in an image forming apparatus Tomokazu Kurita, Junichi Ozawa, Mitsuhiro Matsumoto, Shigeo Ohno 2010-12-28