RI

Ryohei Iwamoto

KO Konica: 4 patents #638 of 1,958Top 35%
KM Konica Minolta: 4 patents #503 of 1,361Top 40%
Overall (All Time): #650,247 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8729285 Copper complex compound and electrophotographic toner containing the same Koji Daifuku, Keiko Ishidai, Kimihiko Ookubo, Kaori Ono, Issei Nakahara 2014-05-20
8329368 Electrophotographic toner Koji Daifuku, Keiko Ishidai, Kimihiko Ookubo, Kaori Ono, Issei Nakahara 2012-12-11
8269018 Pyrazolotriazole compound and electrophotographic toner Kimihiko Ookubo, Koji Daifuku, Keiko Ishidai, Kaori Ono, Issei Nakahara 2012-09-18
7943279 Copper complex compound and electrophotographic toner containing the same Koji Daifuku, Keiko Ishidai, Kimihiko Ookubo, Kaori Ono, Issei Nakahara 2011-05-17
7202018 Silver salt photothermographic dry imaging material Kazuaki Nakamura, Norio Miura, Kiyoshi Fukusaka 2007-04-10
6800431 Photothermographic material Norio Miura, Kazuaki Nakamura, Hiroyuki Yasukawa, Kiyoshi Fukusaka 2004-10-05
6699649 Silver salt photothermographic imaging material, and image recording method and image forming method by the use thereof Ayumu Nishijima, Kiyokazu Morita, Norio Miura, Kazuaki Nakamura, Kiyoshi Fukusaka 2004-03-02
5945268 Silver halide color photographic light-sensitive material Koji Daifuku, Hiroyuki Yasukawa, Kohichi Takabe, Satoru Ikesu 1999-08-31