KO

Katsumi Okayama

SO Sony: 3 patents #153 of 2,293Top 7%
SC Sumitomo Special Metals Co.: 2 patents #4 of 52Top 8%
Overall (2003): #9,331 of 273,478Top 4%
5
Patents 2003

Issued Patents 2003

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6670546 Radio wave absorber Junichi Toyoda, Yoshihiro Kato, Satoshi Sugimoto, Koichiro Inomata 2003-12-30
6548014 Suspension application apparatus and method for manufacturing rare earth magnet Hiroyuki Kumokita, Tsuyoshi Wada 2003-04-15
6537385 Rare earth magnet and method for manufacturing the same Naoyuki Ishigaki, Shuhei Okumura 2003-03-25
6507318 Antenna apparatus and portable communication apparatus Hiroki Ito 2003-01-14
6503963 Radiowave absorbent and manufacturing method thereof Junichi Toyoda, Sakan Iwashita 2003-01-07