YC

Yong-Bo Chong

UN Unknown: 4 patents #4,220 of 83,584Top 6%
CC C.Uyemura & Co.: 2 patents #51 of 180Top 30%
DC Dainippon Screen Mfg. Co.: 2 patents #346 of 977Top 40%
ML Mitsubishi Pencil Company, Limited: 2 patents #127 of 302Top 45%
MC Mitsui Engineering & Shipbuilding Co.: 1 patents #166 of 496Top 35%
Overall (All Time): #666,340 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6045867 Fluorine compound--containing composite material and method for preparing same Nobuatsu Watanabe, Sowjun Matsumura 2000-04-04
5589271 Fluorine compound - containing composite material and method of preparing same Nobuatsu Watanabe, Sowjun Matsumura 1996-12-31
5498281 Recording material containing carbonaceous powder whose surface is modified with fluorine gas Hiroyuki Idogawa, Atsushi Wakata, Nobuatsu Watanabe 1996-03-12
5476056 Method of forming air layer over immersed surfaces of structure having immersed portions, and structure of coat layer formed over immersed surfaces Junichiro Tokunaga, Makoto Kumada, Yoichi Sugiyama, Nobuatsu Watanabe, Naoki Matsubara 1995-12-19
5437715 Recording material containing carbonaceous powder whose surface is modified with fluorine gas Hiroyuki Idogawa, Atsushi Wakata, Nobuatsu Watanabe 1995-08-01
5112437 Oxide film removing apparatus and removing method thereof using azeotropic vapor mixture Nobuatsu Watanabe, Toshio Tatsuno, Tomoyoshi Okada, Akira Izumi, Keiji Toei 1992-05-12
5069764 Carbon electrode having low polarizability Nobuatsu Watanabe, Tetsuro Tojo, Kenji Ikari 1991-12-03
5022961 Method for removing a film on a silicon layer surface Akira Izumi, Keiji Toei, Nobuatsu Watanabe 1991-06-11