SO

Seiji Oka

Mitsubishi Electric: 1 patents #405 of 1,581Top 30%
Ricoh Company: 1 patents #232 of 695Top 35%
Overall (1997): #24,622 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5661223 Composition of phenolic resin-modified epoxy resin and straight chain polymer Mitsuhiro Nonogaki, Takumi Kikuchi, Takashi Takahama, Hiroyuki Nakajima, Michio Futakuchi 1997-08-26
5659860 Developing device for an image forming apparatus and toner cartridge Fumihiro Sasaki, Satoshi Mochizuki, Hidefumi Gohhara, Megumi Sakakura, Hajime Oyama +2 more 1997-08-19