AM

Akihiko Matsuyama

Ricoh Company: 61 patents #132 of 9,818Top 2%
GC Goo Chemical Co.: 1 patents #20 of 39Top 55%
Overall (All Time): #38,007 of 4,157,543Top 1%
61
Patents All Time

Issued Patents All Time

Showing 51–61 of 61 patents

Patent #TitleCo-InventorsDate
8242201 Pigment dispersion, recording ink, ink cartridge, ink-jet recording method and ink-jet recording apparatus Hiroshi Goto, Kiyofumi Nagai 2012-08-14
8109622 Recording ink, ink cartridge, inkjet recording method, and inkjet recording apparatus Hiroshi Goto, Kiyofumi Nagai 2012-02-07
7977408 Recording ink, ink set, ink cartridge, ink record, inkjet recording apparatus and inkjet recording method Masanori Hirano, Hiroshi Adachi 2011-07-12
7919544 Ink-media set, ink composition, ink cartridge, inkjet recording method, inkjet recording apparatus, and ink recorded matter Tamotsu Aruga, Naoya Morohoshi, Tohru Ohshima, Hiroshi Goto 2011-04-05
7282529 Coating liquid for an electrographic photoreceptor and a method of preparation using a ball mill Nozomu Tamoto, Tetsuro Suzuki, Hiroshi Tamura, Tatsuya Niimi, Eiji Kurimoto +1 more 2007-10-16
7127196 Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor Hidetoshi Kami, Tatsuya Niimi, Eiji Kurimoto, Nozomu Tamoto 2006-10-24
7060404 Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptor Hidetoshi Kami, Tatsuya Niimi, Eiji Kurimoto, Nozomu Tamoto 2006-06-13
6858362 Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor Nozomu Tamoto, Tetsuro Suzuki, Hiroshi Tamura, Tatsuya Niimi, Eiji Kurimoto +1 more 2005-02-22
6844124 Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor Hiroshi Ikuno, Hidetoshi Kami, Ryohichi Kitajima, Narihito Kojima, Hiroshi Nagame +8 more 2005-01-18
6790572 Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptor Nozomu Tamoto, Tetsuro Suzuki, Hiroshi Tamura, Tatsuya Niimi, Eiji Kurimoto +1 more 2004-09-14
6641964 Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor Hiroshi Ikuno, Hidetoshi Kami, Ryohichi Kitajima, Narihito Kojima, Hiroshi Nagame +8 more 2003-11-04