RM

Ryuji Murayama

Canon: 22 patents #2,832 of 19,416Top 15%
Pioneer Electronic: 5 patents #387 of 1,840Top 25%
NK Nippon Kayaku: 4 patents #176 of 1,103Top 20%
TP Tohoku Pioneer: 4 patents #64 of 312Top 25%
TE Tohoku Pioneer Electronic: 1 patents #21 of 73Top 30%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #109,761 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 25 most recent of 32 patents

Patent #TitleCo-InventorsDate
12259684 Magnetic carrier, two-component developer, and replenishment developer Hironori Minagawa, Yuto Onozaki, Nobuhiro Yoshida 2025-03-25
12222678 Magnetic carrier, two-component developer, and replenishment developer Yuto Onozaki, Nobuhiro Yoshida, Hironori Minagawa 2025-02-11
12164265 Magnetic carrier, two-component developer, and developer for replenishment Yuto Onozaki, Nobuhiro Yoshida, Hironori Minagawa 2024-12-10
11762307 Toner Junichi Tamura, Takaho Shibata, Kenta Mitsuiki, Megumi Shino, Hironori Minagawa 2023-09-19
11131938 Toner and image forming method Takaho Shibata, Junichi Tamura, Kenta Mitsuiki, Megumi Shino, Hironori Minagawa 2021-09-28
10877386 Toner Junichi Tamura, Kentaro Kamae, Hayato Ida, Daisuke Yamashita, Masaharu Miura +3 more 2020-12-29
10775710 Toner Kentaro Kamae, Junichi Tamura, Masaharu Miura, Hayato Ida, Takaho Shibata +2 more 2020-09-15
10514624 Toner Junichi Tamura, Hayato Ida, Kentaro Kamae, Takashi Hirasa 2019-12-24
10451990 Toner and method for producing toner Kentaro Kamae, Junichi Tamura, Hayato Ida, Takashi Hirasa 2019-10-22
10353312 Toner Kentaro Kamae, Junichi Tamura, Hayato Ida, Takashi Hirasa 2019-07-16
10234779 Toner and method of producing toner Hayato Ida, Junichi Tamura, Takaho Shibata, Daisuke Yamashita, Takashi Hirasa 2019-03-19
10228629 Toner Junichi Tamura, Hayato Ida, Takaho Shibata, Yuya Chimoto, Kouichirou Ochi +3 more 2019-03-12
10216106 Method for producing toner Tomoyo Miyakai, Junichi Tamura, Hayato Ida, Takaho Shibata, Kouichirou Ochi +4 more 2019-02-26
10203619 Toner and method for producing toner Daisuke Yamashita, Takashi Hirasa, Hayato Ida, Junichi Tamura, Takaho Shibata +3 more 2019-02-12
10088765 Toner and method for producing toner Tomoyo Miyakai, Hayato Ida, Takaho Shibata, Junichi Tamura, Daisuke Yamashita +1 more 2018-10-02
10078281 Toner and method for producing toner Hayato Ida, Junichi Tamura, Takaho Shibata, Daisuke Yamashita, Takashi Hirasa 2018-09-18
10012920 Toner and method of producing toner Takaho Shibata, Hayato Ida, Junichi Tamura, Yuya Chimoto 2018-07-03
9958800 Toner Yuya Chimoto, Hayato Ida, Takaho Shibata, Junichi Tamura, Kouichirou Ochi +4 more 2018-05-01
9897934 Toner Junichi Tamura, Hayato Ida, Takaho Shibata, Yuya Chimoto 2018-02-20
9658550 Toner for use in electrophotographic systems Hayato Ida, Takaho Shibata, Junichi Tamura, Daisuke Yamashita, Akemi Watanabe +4 more 2017-05-23
9250552 Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agent Kei Inoue, Yasuaki Murai, Kazuyuki Sato, Soichiro Kawakami, Masashi Hirose 2016-02-02
9170514 Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agent Yasuaki Murai, Kei Inoue, Kazuyuki Sato, Masashi Hirose 2015-10-27
7851074 Organic electroluminescent display device and chemical compounds for liquid crystals Junji Kido, Hitoshi Nakada, Teruo Tohma, Toshinao Yuki 2010-12-14
7195826 Organic electroluminescent display device and chemical compounds for liquid crystals Junji Kido, Hitoshi Nakada, Teruo Tohma, Toshinao Yuki 2007-03-27
7187120 Organic electroluminescent display panel and method of manufacturing the same Isamu Ohshita 2007-03-06