KO

Katsumi Okamoto

SE Seiko Epson: 43 patents #268 of 7,774Top 4%
SA Satake: 3 patents #49 of 187Top 30%
MC Mita Industrial Co.: 1 patents #653 of 891Top 75%
Overall (All Time): #59,984 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
12377669 Relay transport device, feeding system, recording system, and position adjustment method Chiaki SHIMADA 2025-08-05
10737897 Medium discharging device and method of controlling medium discharging device Katsuyuki Kondo, Masayoshi MIYAKAWA 2020-08-11
9834001 Recording apparatus Yoshiyuki Tanaka, Takaichi Wada, Tetsuya Takamoto, Yasuhiro Matsuo, Isao MOMOSE +2 more 2017-12-05
9150023 Recording apparatus Yasuhiro Matsuo, Masaki Shimomura, Satoshi Iwaya, Atsushi Takei 2015-10-06
9114943 Medium transport device and recording device Takeshi Aoki 2015-08-25
9085433 Medium transport device and recording device Takeshi Aoki 2015-07-21
9067419 Recording apparatus Yoshiyuki Tanaka, Takaichi Wada, Tetsuya Takamoto, Yasuhiro Matsuo, Isao MOMOSE +2 more 2015-06-30
8851665 Recording apparatus 2014-10-07
8807703 Liquid ejection apparatus Masanori Nakata, Yoshikane Tsuchihashi, Takafumi Ogimura 2014-08-19
8807739 Recording apparatus 2014-08-19
8714732 Liquid ejecting apparatus Takamasa Ikagawa, Makoto Sato 2014-05-06
8596777 Liquid ejecting apparatus 2013-12-03
8469075 Coating film peeling apparatus for resin material Hidekazu Furukawa 2013-06-25
8401443 Toner-particle bearing roller, developing device, and image forming apparatus Yoichi Yamada, Tomohiro Aruga, Noboru Sakurai, Hiroshi Kato, Masanao Kunugi +1 more 2013-03-19
8087170 Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus Noboru Sakurai, Yoichi Yamada, Junichi Nakahara, Masanao Kunugi, Tomohiro Aruga 2012-01-03
D651624 Perforated hexagonal screen Hidekazu Furukawa 2012-01-03
7974549 Developing device and image forming apparatus Takeshi Aoki, Takatomo Fukumoto 2011-07-05
7885554 Developing device, image forming apparatus, image forming system, cartridge, developing unit and photoconductor unit Junji Shirokoshi, Yuichi Segawa, Satoru Miyamoto, Yoichi Yamada, Yasushige Hori +1 more 2011-02-08
7881644 Developing device and image forming apparatus Koji Migita, Makoto Sato, Takeshi Aoki, Masashi Nakatsu 2011-02-01
7881641 Developing cartridge, developing device, and image forming apparatus Takeshi Aoki, Koji Migita, Makoto Sato, Masashi Nakatsu 2011-02-01
7822368 Container for developing agent, and image forming apparatus incorporating the same Hiroshi Kato, Takami Naruta 2010-10-26
7783234 Developer cartridge, image forming apparatus, and shutter device Toshiaki Oshima, Kazuhiro Ichikawa, Takatomo Fukumoto 2010-08-24
7761037 Image formation apparatus that replenishes developer based on detected height of developer and rotating speed of developer carrier Kazuyoshi Ohashi 2010-07-20
7636538 Layer-thickness restriction member, developing device, method for manufacturing restriction blade, and blade-forming mold Hidetoshi Sato 2009-12-22
7620348 Container for developing agent, and image forming apparatus incorporating the same Hiroshi Kato, Takami Naruta 2009-11-17