SN

Shigeki Nakajima

OD Oki Data: 17 patents #26 of 635Top 5%
OC Oki Electric Industry Co.: 15 patents #53 of 2,807Top 2%
NE Nec: 2 patents #5,510 of 14,502Top 40%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
RE Ryoden Semiconductor System Engineering: 1 patents #111 of 195Top 60%
TK Tokai Denka Kogyo Kabushiki Kaisha: 1 patents #14 of 32Top 45%
TC Toyo System Co.: 1 patents #13 of 17Top 80%
Overall (All Time): #86,896 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 25 most recent of 38 patents

Patent #TitleCo-InventorsDate
9112412 Full-bridge power converter Hideki Shoji, Seiji Kawaberi 2015-08-18
RE38978 Toner transporting method and mechanism employing a belt conveyor Atsushi Kobayashi 2006-02-14
6882811 Image drum cartridge and developing unit having a movable developing roller Masahiro Fukuda, Atsushi Kobayashi 2005-04-19
6496671 Toner cartridge with locking toner discharge opening 2002-12-17
D462379 Image drum cartridge Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Yoshiharu Momiyama 2002-09-03
6363233 Compact toner cartridge with fresh and waste toner chambers 2002-03-26
D451539 Toner cartridge Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Yoshiharu Momiyama 2001-12-04
D450752 Toner cartridge Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Yoshiharu Momiyama 2001-11-20
D450344 Image drum cartridge Junichi Ito, Sinichi Otani, Atsushi Kobayashi, Yoshiharu Momiyama 2001-11-13
6290802 Method of manufacturing laminate and grommet used for the method 2001-09-18
6151472 Toner cartridge and drum cartridge for receiving the toner cartridge therein 2000-11-21
6134410 Toner cartridge and drum cartridge for receiving the toner cartridge therein 2000-10-17
6120670 Method of fabricating a multi-layered printed wiring board 2000-09-19
6112037 Color image forming apparatus having a controller for setting printing speeds in dependence on a detected number of colors in an image signal Masato Nagata, Hisao Ono, Yoshiharu Momiyama, Noboru Otaki, Atsushi Kurabayashi +8 more 2000-08-29
6061537 Electrophotographic printer Atsushi Kobayashi 2000-05-09
6021292 Toner cartridge and toner collecting mechanism Takashi Wakana 2000-02-01
5983042 Color image forming apparatus having a printing mechanism selectively movable to operative and non-operative positions Masato Nagata, Hisao Ono, Yoshiharu Momiyama, Noboru Otaki, Atsushi Kurabayashi +8 more 1999-11-09
5975518 Paper feeding mechanism Takashi Wakana 1999-11-02
5963815 Method for forming a surface-roughened conductive film on a semiconductor wafer Yoshihiko Okamoto, Tadashi Yoshida, Hiroshi Ohnishi, Kenichi Hanaoka, Junichi Tsuchimoto 1999-10-05
5956556 Toner recycling method and mechanism employing a belt conveyor Atsushi Kobayashi 1999-09-21
5737664 Overheating prevention device for a fixing unit Masahiro Fukuda, Koji Morimoto, Takashi Wakana, Takao Uchida, Naoki Sunaga 1998-04-07
5722019 Toner cartridge and drum cartridge for receiving the toner cartridge therein 1998-02-24
D389860 Toner cartridge Yukio Ota, Yoshiharu Momiyama 1998-01-27
5419544 Paper cassette and paper cassette insertion mechanism Ichiro Ono, Masahiro Fukuda 1995-05-30
D356815 Toner cartridge Yukio Ota, Yoshiharu Momiyama 1995-03-28