HN

Hisashi Nakajima

Ricoh Company: 40 patents #359 of 9,818Top 4%
AL A.K. Technical Laboratory: 7 patents #3 of 34Top 9%
TL Tokyo Electron Limited: 7 patents #1,084 of 5,567Top 20%
TL Tokyo Electron Yamanashi Limited: 5 patents #3 of 138Top 3%
JC Japan Crown Cork Co.: 4 patents #9 of 72Top 15%
NC Nippon Paper Industries Co.: 2 patents #176 of 535Top 35%
TC Tomy Company: 2 patents #85 of 226Top 40%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
Overall (All Time): #35,825 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 26–50 of 63 patents

Patent #TitleCo-InventorsDate
8481239 Carrier for two-component developer Kimitoshi Yamaguchi, Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki +2 more 2013-07-09
8475989 Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developer Yutaka Takahashi, Minoru Masuda, Kimitoshi Yamaguchi, Koichi Sakata, Hitoshi Iwatsuki +3 more 2013-07-02
8211605 Toner, developer, toner container, process cartridge, image forming method, and image forming apparatus Hiroshi Yamada, Satoshi Mochizuki, Fumihiro Sasaki, Yasuo Asahina 2012-07-03
8167161 Metallic container closure having internal pressure release function Katsuhito Ichimura, Kouichi Tsuchiya, Shinya Matsumoto, Mitsuo Kumata, Kiyohisa Kaito 2012-05-01
7939235 Image formation method Takahiro Honda, Hiroyuki Fushimi, Fumihiro Sasaki, Hiroshi Yamada, Yasuo Asahina 2011-05-10
7935469 Image forming method and toner for developing latent electrostatic image Takahiro Honda, Hiroyuki Fushimi, Fumihiro Sasaki, Yasuo Asahina 2011-05-03
7642032 Toner, developer, image forming apparatus and image forming method Hideki Sugiura, Satoshi Mochizuki, Akihiro Kotsugai, Yasuo Asahina, Osamu Uchinokura +6 more 2010-01-05
7608377 Image forming method and image forming apparatus Shinya Nakayama, Hideki Sugiura, Fumihiro Sasaki, Akihiro Kotsugai, Satoshi Mochizuki 2009-10-27
7566521 Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method Akihiro Kotsugai, Satoshi Mochizuki, Yasuo Asahina, Osamu Uchinokura, Masayuki Ishii +8 more 2009-07-28
7547497 Toner, and developer, image developer and image forming apparatus using the toner Osamu Uchinokura, Masami Tomita, Shinya Nakayama, Koichi Sakata, Akihiro Kotsugai +5 more 2009-06-16
7521164 Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method Shinya Nakayama, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Akihiro Kotsugai +17 more 2009-04-21
7455942 Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method using the same Tsuneyasu Nagatomo, Akihiro Kotsugai, Hiroshi Yamashita, Masayuki Ishii, Hiroto Higuchi +10 more 2008-11-25
7442484 Image forming method using toner Osamu Uchinokura, Akihiro Kotsugai, Yasuo Asahina, Tomoyuki Ichikawa, Shinya Nakayama +5 more 2008-10-28
7374851 Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method Shinya Nakayama, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Akihiro Kotsugai +17 more 2008-05-20
7368212 Toner for developing electrostatic image, developer, image forming apparatus, process for forming image, process cartridge and process for measuring porosity of toner Hideki Sugiura, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Akihiro Kotsugai +4 more 2008-05-06
7368213 Toner and fixing device and image forming device using the same Shinya Nakayama, Fumihiro Sasaki, Satoshi Mochizuki, Akihiro Kotsugai, Yasuo Asahina +5 more 2008-05-06
7318989 Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method Akihiro Kotsugai, Satoshi Mochizuki, Yasuo Asahina, Osamu Uchinokura, Masayuki Ishii +8 more 2008-01-15
7261989 Toner for developing electrostatic images, developer, image forming method, and image forming apparatus Hideki Sugiura, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Tomoyuki Ichikawa +4 more 2007-08-28
7258959 Toner for electrophotography and image forming apparatus Shinya Nakayama, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Kazuhiko Umemura +7 more 2007-08-21
7014055 Synthetic resin container closure Yuji Kano 2006-03-21
6779672 Synthetic resin container closure Yuji Kano 2004-08-24
6377766 Electrophotographic apparatus having a printing density controller for dropout and non-dropout color Hiroshi Ueno, Koutarou Yamada, Katuhiro Shinohara, Kouhei Katayama 2002-04-23
6247836 Injection screw for injection molding a preform of a polyester resin Hideaki Koda 2001-06-19
6136260 Process for injection molding a preform of a polyester resin Hideaki Koda 2000-10-24
6060210 Varnishing film and method of adjusting the surface gloss of prepress color proof using the same Toshikazu Eda, Toshihiko Takada, Kazuo Nagashima, Norio Yabe 2000-05-09