RH

Ryuji Higashi

Canon: 36 patents #1,342 of 19,416Top 7%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Kubota: 2 patents #849 of 2,059Top 45%
Overall (All Time): #72,691 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
7833687 Aqueous dispersion of fine resin particles, method for producing aqueous dispersion of fine resin particles, and method for producing toner particles Masayoshi Kato, Takayuki Toyoda, Ryo Natori, Takaho Shibata, Yuya Chimoto +1 more 2010-11-16
7754000 Preparation process of pigment dispersion, image forming process and image forming apparatus Kazumichi Nakahama, Takayuki Teshima, Yukio Hanyu 2010-07-13
7704414 Image-forming method employing a composition Koichi Sato, Tomoko Maruyama, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami +2 more 2010-04-27
7601790 Amphiphilic block copolymer, polymer-containing composition containing the same, and method and apparatus for applying liquid using the polymer-containing composition Koichi Sato, Masayuki Ikegami, Keiichiro Tsubaki, Ikuo Nakazawa, Sakae Suda +3 more 2009-10-13
7598332 Polymerizable compound, polymer compound, composition using the same, image-forming method, and image-forming apparatus Masayuki Ikegami, Koichi Sato, Ikuo Nakazawa, Sakae Suda, Keiichiro Tsubaki +1 more 2009-10-06
7585918 Block polymer compound, polymer-containing composition that contains the same Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami, Keiichiro Tsubaki 2009-09-08
7563853 Polymer compound, process for producing the same, polymer-containing composition, ink-applying process, and ink-applying apparatus Keiichiro Tsubaki, Masayuki Ikegami, Koichi Sato, Ikuo Nakazawa, Sakae Suda +1 more 2009-07-21
7538147 Image forming method, pattern forming method and liquid-applying apparatus which make use of liquid compositions Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami, Keiichiro Tsubaki +1 more 2009-05-26
7528179 Block polymer, polymer-containing composition containing the same, ink composition and liquid applying method and liquid applying apparatus utilizing the polymer-containing composition Sakae Suda, Ikuo Nakazawa, Koichi Sato, Masayuki Ikegami, Keiichiro Tsubaki +1 more 2009-05-05
7528182 Process for producing colorant dispersoid Takayuki Teshima, Koichi Sato, Hitoshi Toma, Ken Eguchi 2009-05-05
7498364 Ink composition comprising a block or graft polymer and at least one colorant Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami, Keiichiro Tsubaki 2009-03-03
7449513 Alkenyl ether compound, polymer compound, composition using them, and image formation method and apparatus Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami, Keiichiro Tsubaki +1 more 2008-11-11
7442753 Polymer compound and block polymer compound Keiichiro Tsubaki, Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami +1 more 2008-10-28
7423075 Polymer, polymer-containing composition containing the same, ink composition, and ink applying method, image forming method and image forming apparatus which make use of ink composition Masayuki Ikegami, Koichi Sato, Ikuo Nakazawa, Sakae Suda, Keiichiro Tsubaki +1 more 2008-09-09
7245851 Electrophotographic apparatus Atsushi Fujii, Masato Tanaka 2007-07-17
7071962 Electrophotographic apparatus, process cartridge and electrophotographic photosensitive member unit Atsushi Fujii, Masato Tanaka 2006-07-04
6773856 Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus Masato Tanaka, Hideki Anayama, Hidetoshi Hirano, Atsushi Fujii 2004-08-10