NE

Naofumi Ezaki

RK Riso Kagaku: 12 patents #34 of 551Top 7%
📍 Ibaraki, JP: #845 of 6,779 inventorsTop 15%
Overall (All Time): #405,748 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11542402 Oil-based inkjet ink, method for producing oil-based inkjet ink and method for producing dispersant Shinichiro Shimura, Shinsuke Ozawa, Tsukasa Hamada, Mitsuko Kitanohara, Tetsuya Shiraishi 2023-01-03
11021624 Oil-based magnetic ink Kenji Yamada, Yoshifumi Watanabe 2021-06-01
10920096 Oil-based inkjet ink and method for producing oil-based inkjet ink Shinsuke Ozawa, Mitsuko Kitanohara, Hikaru Sugiura, Yoshifumi Watanabe, Manami Shimizu +1 more 2021-02-16
10907062 Oil-based inkjet ink and method for producing oil-based inkjet ink Tomohiro Matsuzawa, Yoshifumi Watanabe, Yasuo Yamamoto, Mitsuko Kitanohara, Manami Shimizu 2021-02-02
9643417 Method for forming silicone-based cured film on ink discharge surface of nozzle plate for inkjet printer, and nozzle plate Yoshifumi Watanabe, Tetsuo Hosoya 2017-05-09
9593251 Non-aqueous pigment ink Tetsuo Hosoya, Toshihiro Endo, Shinichiro Shimura, Naoyuki Torita, Marie Morinaga 2017-03-14
9365736 Non-aqueous pigment ink Tetsuo Hosoya, Toshihiro Endo, Shinichiro Shimura, Naoyuki Torita, Marie Morinaga 2016-06-14
8999049 W/O emulsion ink for inkjet Kazuyuki Ando, Shinichiro Shimura 2015-04-07
8795421 W/O emulsion ink for inkjet Kazuyuki Ando, Shinichiro Shimura 2014-08-05
8778068 W/O emulsion ink for inkjet Shinichiro Shimura, Kazuyuki Ando 2014-07-15
8394185 Non-aqueous inkjet ink Hiroshi Hayashi 2013-03-12
8232329 Inkjet ink Hidenori Otsuka, Masayuki Fukaishi, Takashi Ishizuka, Koji Ueno, Yoshihiro Saito +1 more 2012-07-31