TK

Tatsuya Kubo

Ricoh Company: 50 patents #228 of 9,818Top 3%
CK Casio Keisanki: 12 patents #19 of 124Top 20%
SI Sumitomo Rubber Industries: 12 patents #153 of 1,637Top 10%
Casio Computer Co.: 3 patents #744 of 1,970Top 40%
DE Denso: 3 patents #3,857 of 11,792Top 35%
RS Ricoh Printing Systems: 2 patents #64 of 200Top 35%
GC Goo Chemical Co.: 2 patents #11 of 39Top 30%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #19,792 of 4,157,543Top 1%
85
Patents All Time

Issued Patents All Time

Showing 26–50 of 85 patents

Patent #TitleCo-InventorsDate
10505194 Positive electrode for lithium-ion secondary battery and lithium-ion secondary battery Akihiro YAMANO, Naoto Yamashita, Toshikatsu Kojima, Masahiro Yanagida 2019-12-10
10326134 Positive-electrode active material for lithium-ion secondary battery, positive electrode and lithium-ion secondary battery Akihiro YAMANO, Naoto Yamashita, Masahiro Yanagida 2019-06-18
10317814 Powder supply device and image forming apparatus incorporating same Nobuo Takami, Tetsuro Hirota, Kenji Kikuchi, Koichi Yamazaki, Atsushi Nakamoto +3 more 2019-06-11
10317839 Developing device and image forming apparatus Shinji Tamaki, Ichiro Kadota, Junichi Matsumoto, Hiroaki Okamoto 2019-06-11
10146154 Powder container, powder supply device, and image forming apparatus including same Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka +1 more 2018-12-04
10126682 Developing device, and image forming apparatus and process cartridge incorporating same Hiroaki Okamoto, Junichi Matsumoto, Shinji Tamaki, Ichiro Kadota 2018-11-13
10008722 Sulfur-based positive-electrode active material and lithium-ion secondary battery Kazuo Hochi, Tetsuo Sakai, Toshikatsu Kojima 2018-06-26
9897938 Developing device and image forming apparatus incorporating same Shinnosuke Koshizuka, Koichi Yamazaki, Atsushi Nakamoto, Nobuo Takami, Kazunori Suzuki +1 more 2018-02-20
9835977 Powder container, powder supply device, and image forming apparatus including same Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka +1 more 2017-12-05
9817335 Powder amount detector, powder supply device, and image forming apparatus incorporating same Naohiro Kawashima, Koichi Yamazaki, Nobuo Takami, Atsushi Nakamoto, Shinnosuke Koshizuka +4 more 2017-11-14
9471009 Developer container, developer replenisher, and image forming apparatus Teppei Kikuchi, Hideki Kosugi, Shinnosuke Koshizuka, Kazunori Suzuki, Atsushi Nakamoto 2016-10-18
9459556 Powder container, powder supply device, and image forming apparatus including same Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka +1 more 2016-10-04
9400450 Toner cartridge and image forming apparatus incorporating same Teppei Kikuchi, Hideki Kosugi, Akira Fujimori, Kentaro Nodera, Shinnosuke Koshizuka 2016-07-26
9154649 Data reader and image forming apparatus incorporating same Akira Fujimori, Hideki Kosugi, Kentaro Nodera, Shinnosuke Koshizuka, Teppei Kikuchi 2015-10-06
9146497 Powder container, powder supply device, and image forming apparatus including same Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka +1 more 2015-09-29
9146501 Toner cartridge and image forming apparatus incorporating same Teppei Kikuchi, Hideki Kosugi, Akira Fujimori, Kentaro Nodera, Shinnosuke Koshizuka 2015-09-29
9110403 Toner-container support unit and image-forming apparatus Akira Fujimori, Hideki Kosugi, Kentaro Nodera, Shinnosuke Koshizuka, Teppei Kikuchi 2015-08-18
8886094 Toner supply device and image forming apparatus Shinnosuke Koshizuka, Hiroyuki Uenishi, Susumu Tateyama, Akihiro Takayama, Kentaro Nodera +1 more 2014-11-11
D711965 Shutter of a powder container Kentaro Nodera, Teppei Kikuchi, Akira Fujimori, Hideki Kosugi, Shinnosuke Koshizuka 2014-08-26
8655237 Development device and image forming apparatus incorporating same Yuji Suzuki, Akihiro Takayama, Kentaro Nodera, Hiroyuki Uenishi, Susumu Tateyama +2 more 2014-02-18
D698857 Powder container Kentaro Nodera, Teppei Kikuchi, Akira Fujimori, Hideki Kosugi, Shinnosuke Koshizuka 2014-02-04
D698858 Powder container Kentaro Nodera, Teppei Kikuchi, Akira Fujimori, Hideki Kosugi, Shinnosuke Koshizuka 2014-02-04
D698388 Powder container Kentaro Nodera, Teppei Kikuchi, Akira Fujimori, Hideki Kosugi, Shinnosuke Koshizuka 2014-01-28
8620194 Developing device, process cartridge, image forming apparatus, and developer discharge device having a discharge port Susumu Tateyama, Yoshitaka Fujinuma 2013-12-31
8559856 Development device and image forming apparatus incorporating same Yuji Suzuki, Akihiro Takayama, Kentarou Nodera, Hiroyuki Uenishi, Susumu Tateyama +2 more 2013-10-15