TK

Takashi Koyanagi

Canon: 14 patents #4,747 of 19,416Top 25%
NK Nihon Kohden: 3 patents #128 of 467Top 30%
AZ Azbil: 2 patents #80 of 257Top 35%
Overall (All Time): #202,706 of 4,157,543Top 5%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
12405550 Developing device, process cartridge, and electrophotographic image forming apparatus Kineo Takeno, Takuho Sato 2025-09-02
12377276 Pulse discrimination device and electrocardiogram analyzer Kazutora Iinuma, Hiroshi Kubo 2025-08-05
12147170 Image forming apparatus having toner charging Yuta Isobe, Kuniaki Tamagaki, Akihisa Matsukawa, Ryosuke Kanai, Hiroki Tanaka +3 more 2024-11-19
12138061 Pulse discrimination device and electrocardiogram analyzer Kazutora Iinuma, Hiroshi Kubo 2024-11-12
11966174 Electrophotographic member, electrophotographic process cartridge, and electrophotographic image forming apparatus Takuho Sato 2024-04-23
11433242 Pulse discrimination device and electrocardiogram analyzer Kazutora Iinuma, Hiroshi Kubo 2022-09-06
11156935 Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus Kentarou Nakamura 2021-10-26
11029622 Developer carrying member, process cartridge, and electrophotographic apparatus Sosuke Yamaguchi, Minoru Ito, Takahiro Miyazawa, Shohei Urushihara, Kentarou Nakamura 2021-06-08
10831125 Developer carrying member, process cartridge, and electrophotographic apparatus Minoru Ito, Sosuke Yamaguchi, Takahiro Miyazawa, Shohei Urushihara, Kentarou Nakamura 2020-11-10
10331054 Electrophotographic member, process cartridge and electrophotographic image forming apparatus Shohei Urushihara, Masaki Yamada, Hideya Arimura 2019-06-25
10197930 Electrophotographic member, process cartridge, and electrophotographic apparatus Masaki Yamada, Takanori Kaihara, Sosuke Yamaguchi 2019-02-05
10122172 Air-conditioning control system and method Mayumi Miura, Masato Tanaka, Kouji Higashijima 2018-11-06
9981180 Die rolling and identification apparatus and gaming machine Koichi Mori 2018-05-29
9977359 Electrophotographic member, method of producing the same, process cartridge, and electrophotographic apparatus Masaki Yamada, Shohei Urushihara, Hideya Arimura 2018-05-22
9649553 Die rolling and identification apparatus and gaming machine Koichi Mori 2017-05-16
9625854 Developer carrying member, electrophotographic process cartridge, and electrophotographic image forming apparatus Minoru Nakamura, Seiji Tsuru, Kazuaki Nagaoka, Yuto Miyauchi 2017-04-18
8874012 Developing member, process cartridge and electrophotographic apparatus Masaki Yamada, Yuji Sakurai, Toru Ishii 2014-10-28
8798508 Developing member, process cartridge, and electrophotographic apparatus Masaki Yamada, Kunimasa Kawamura, Minoru Nakamura, Yuji Sakurai, Shohei Urushihara 2014-08-05
8768226 Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatus Masaki Yamada, Kunimasa Kawamura, Yuji Sakurai 2014-07-01
8682492 Setting value controlling method and device Naofumi Ushioda, Masato Tanaka 2014-03-25
8655222 Developing member, process cartridge, and electrophotographic image forming apparatus Minoru Nakamura, Shohei Urushihara, Kunimasa Kawamura, Masaki Yamada 2014-02-18