RH

Ryuji Higashi

Canon: 36 patents #1,342 of 19,416Top 7%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
Kubota: 2 patents #849 of 2,059Top 45%
Overall (All Time): #72,691 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 25 most recent of 42 patents

Patent #TitleCo-InventorsDate
12140549 Polymer dye for detecting hydrogen peroxide and structure for detecting hydrogen peroxide Keigo Mizusawa, Masanori Seki, Takeshi Yamamoto, Kengo Kanazaki 2024-11-12
12057601 Liquid composition Kohji Matsuoka, Masahiro Masuzawa, Hideo Yanagita 2024-08-06
11955640 Inorganic particle layer, electrode, electrode element, and non-aqueous electrolyte power storage element Yuu Zama, Masahiro Masuzawa, Kohji Matsuoka, Hideo Yanagita, Anna Hirowatari 2024-04-09
11807783 Liquid composition, method of manufacturing electrodes and method of manufacturing electrochemical device Hiromitsu Kawase, Yuu Zama, Okitoshi Kimura, Kohji Matsuoka, Yusuke Kanno +2 more 2023-11-07
11545308 Liquid composition and method for producing electrochemical device Kohji Matsuoka, Masahiro Masuzawa, Hideo Yanagita, Yuu Zama, Tomoya Ohmura +2 more 2023-01-03
10808059 Polymer Yutaka Tani, Takeshi Sekiguchi, Keigo Mizusawa, Masaru Sugita, Isao Kawata 2020-10-20
10761442 Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of producing electrophotographic photosensitive member Koichi Nakata, Haruki Mori, Shubun Kujirai, Shinji Takagi, Isao Kawata +1 more 2020-09-01
10678156 Pigment dispersion, method for manufacturing toner, aqueous ink, and triazo compound Akiko Kitao, Ai Hayakawa, Koichi Suzuki, Taiki Watanabe 2020-06-09
10670979 Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and method of manufacturing electrophotographic photosensitive member Koichi Nakata, Haruki Mori, Shinji Takagi, Koichi Suzuki, Isao Kawata +3 more 2020-06-02
10654015 Method for controlling rapid stirrer, and rapid stirrer Takashi Tamura 2020-05-19
10577481 Polymer Masanori Seki, Keigo Mizusawa, Masaru Sugita 2020-03-03
10369535 Rapid stirring machine Koji Takahashi, Takashi Tamura 2019-08-06
9593250 Aqueous ink, ink cartridge and ink jet recording method Takakazu Mizutani, Koichi Suzuki, Taiki Watanabe 2017-03-14
9534127 Aqueous ink, ink cartridge and ink jet recording method Mikio Sanada, Taiki Watanabe, Koichi Suzuki 2017-01-03
9458323 Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method Taiki Watanabe, Koichi Suzuki, Hiroshi Tanabe 2016-10-04
9441128 Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method Taiki Watanabe, Koichi Suzuki 2016-09-13
9403989 Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method Taiki Watanabe, Koichi Suzuki 2016-08-02
9371462 Production process for self-dispersible pigment, self-dispersible pigment, ink, ink cartridge and ink jet recording method Taiki Watanabe, Koichi Suzuki, Masashi Hirose 2016-06-21
9244373 Toner and method of producing toner Akiko Kitao, Taichi Shintou, Takeshi Miyazaki 2016-01-26
8927185 Toner and toner production method Akiko Kitao, Taichi Shintou, Takeshi Miyazaki 2015-01-06
8697327 Toner production process and toner Takaho Shibata, Masayoshi Kato, Takayuki Toyoda, Ryo Natori, Yuya Chimoto 2014-04-15
8450393 Polymeric compound containing composition, and image forming process and apparatus Keiichiro Tsubaki, Masayuki Ikegami, Keiko Yamagishi, Ryo Natori, Takaho Shibata 2013-05-28
8177902 Method for producing liquid composition and pigment particles and ink composition for ink jet recording Kazumichi Nakahama, Takayuki Teshima, Yukio Hanyu 2012-05-15
7914616 Method for producing liquid composition and pigment particles and ink composition for ink jet recording Kazumichi Nakahama, Takayuki Teshima, Yukio Hanyu 2011-03-29
7866806 Liquid-composition set, and liquid-applying method and liquid-applying apparatus employing the set Koichi Sato, Ikuo Nakazawa, Sakae Suda, Masayuki Ikegami, Keiichiro Tsubaki +1 more 2011-01-11