KM

Keiko Matsumoto

Ricoh Company: 19 patents #1,131 of 9,818Top 15%
SH Shimadzu: 3 patents #606 of 2,007Top 35%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TC Taisho Pharmaceutical Co.: 1 patents #275 of 557Top 50%
TT The University Of Tokyo: 1 patents #1,000 of 2,633Top 40%
DC Denka Seiken Co.: 1 patents #45 of 73Top 65%
TC Toyo Aerosol Industry Co.: 1 patents #18 of 53Top 35%
JC Japan Radio Co.: 1 patents #56 of 178Top 35%
KC Kaken Pharmaceutical Co.: 1 patents #159 of 335Top 50%
Overall (All Time): #129,734 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
12117426 Biological membrane phosphoinositide separation method Yuta Shimanaka, Nozomu Kono, Hiroyuki Arai 2024-10-15
11435327 Supercritical fluid chromatograph and supercritical fluid chromatography analysis method 2022-09-06
10564654 Loop injection mechanism 2020-02-18
10459071 Orthogonal separation device and orthogonal separation method Yukinobu Tokieda 2019-10-29
9857745 Image forming apparatus incorporating image reader Natsumi Matsue, Akira Yoshida, Akio Kosuge, Yoichi Sakurai, Yuuichiroh Uematsu 2018-01-02
9651910 Image forming apparatus incorporating line sensor Akio Kosuge, Natsumi Matsue, Akira Yoshida, Yoichi Sakurai, Yuuichiroh Uematsu +2 more 2017-05-16
9366989 Image forming apparatus Daisuke Ito, Ken Yoshida, Yoichi Sakurai, Daisuke Takahashi 2016-06-14
9316954 Image forming apparatus Ken Yoshida, Tomohide Takenaka, Daisuke Ito, Daisuke Takahashi, Masahiro Katoh +1 more 2016-04-19
8660468 Developing device including refill operation Makoto Yasuda 2014-02-25
8295737 Developing device and image forming apparatus using same Kiyonori Tsuda, Junichi Terai, Kentaroh Tomita, Kohichi Utsunomiya 2012-10-23
8185001 Image forming apparatus and method 2012-05-22
8165508 Developer loading method, loaded developer accommodating container, developer replenishment device, and image forming apparatus Emi Kita, Mugijirou Uno, Satoru Miyamoto, Junichi Terai, Maiko Koeda 2012-04-24
8121498 Image forming apparatus and developer supply method therefor Mugijiro Uno, Takuzi Yoneda, Yuki Oshikawa 2012-02-21
8086117 Image forming apparatus and developer replenishing method Mugijirou Uno, Takuzi Yoneda, Yuki Oshikawa 2011-12-27
8064807 Developer supply system and image forming apparatus incorporating same Maiko Koeda, Koichi Kato, Emi Kita, Takuzi Yoneda, Yuki Oshikawa +1 more 2011-11-22
8014704 Developing agent storage device and image forming apparatus having same in which the chargeability level of the toner, storage device, and carrier have a specific relationship Emi Kita, Mugijirou Uno, Satoru Miyamoto, Junichi Terai 2011-09-06
7991330 Developing unit including developer conveyance system having supply path, recovery path, and agitation path, process cartridge including developing unit, and image forming apparatus including process cartridge Yuki Oshikawa, Koichi Kato, Hiroyuki Okaji, Mugijirou Uno, Kiyonori Tsuda +1 more 2011-08-02
7962071 Developing device and image forming apparatus using same Kiyonori Tsuda, Koichi Kato, Yuki Oshikawa, Yasufumi Takahashi, Eriko Maruyama +5 more 2011-06-14
7925190 Developer supply device and image forming apparatus comprising same Mugijirou Uno, Hiroyuki Okaji 2011-04-12
7811779 Method of multiquantification for cholesterol of low-density lipoprotein Hiroshi Matsui 2010-10-12
7801467 Developing-agent container, method of manufacturing developing-agent container, developing-agent supplying device, and image forming apparatus Mugijirou Uno, Hiroyuki Okaji 2010-09-21
7658338 Small fixed quantity dispenser for aerosol container Ken Ogata 2010-02-09
7550243 Toner, developer, toner container, process cartridge, fixing process, image forming apparatus, and image forming process Toyoshi Sawada 2009-06-23
7413839 Toner, developer, toner container, process cartridge, and an image forming apparatus Toyoshi Sawada 2008-08-19
7379696 Toner for developing electrostatic image, fixing method for fixing image formed of the toner, and image forming method and process cartridge using the toner Toyoshi Sawada 2008-05-27