RK

Rikizo Kobashi

NC Nippon Oil & Fats Co.: 3 patents #69 of 409Top 20%
PI Ppg Industries: 2 patents #457 of 1,216Top 40%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #1,665,054 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5028660 Method for modifying the surface of polycarbonate resin Shigeyuki Takase, Hiroyuki Enomoto, Yasushi Hayasaki, Toyohisa Kobayashi, Shingo Yamazaki 1991-07-02
4929685 Method for modifying the surface of polycarbonate resin Shigeyuki Takase, Hiroyuki Enomoto, Yasushi Hayasaki, Toyohisa Kobayashi, Shingo Yamazaki 1990-05-29
4432851 Electrodeposition of lubricative coating Sachio Matsuo, Tadashi Sakane, Ryoichi Noumi, Shinji Fujiwara, Hiroshi Fukudome +2 more 1984-02-21