YI

Yoshimichi Ishikawa

Ricoh Company: 37 patents #422 of 9,818Top 5%
📍 Kasai, JP: #145 of 5,842 inventorsTop 3%
Overall (All Time): #90,058 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
8110330 Toner, developer, toner container, process cartridge, image forming method, and image forming apparatus Chiyoshi Nozaki, Tsuyoshi Nozaki, Takuya Kadota, Katsunori Kurose, Mitsuyo Matsumoto +2 more 2012-02-07
8053154 Toner and image forming method Takuya Kadota, Masayuki Hagi, Yoshihiro Mikuriya, Katsunori Kurose, Hiroaki Kato +4 more 2011-11-08
8043779 Pulverized toner Hideaki Yasunaga, Hiroaki Kato, Masayuki Hagi, Katsunori Kurose, Yoshihiro Mikuriya +2 more 2011-10-25
8012658 Toner for developing electrostatic image, and image forming apparatus and process cartridge using the toner Chiyoshi Nozaki, Takuya Kadota, Katsunori Kurose, Mitsuyo Matsumoto, Tsuyoshi Nozaki +2 more 2011-09-06
7903998 Image forming apparatus Mitsuyo Matsumoto, Chiyoshi Nozaki, Takuya Kadota, Katsunori Kurose, Tsuyoshi Nozaki +1 more 2011-03-08
7867685 Image forming method and apparatus Hiroyuki Murakami, Masahide Inoue, Chiyoshi Nozaki, Tsuyoshi Nozaki, Atsushi Yamamoto +3 more 2011-01-11
7838193 Toner and image forming method using the toner Masayuki Hagi, Takuya Kadota, Hiroaki Katoh, Atsushi Yamamoto, Katsunori Kurose +5 more 2010-11-23
7833686 Toner and method for producing the same, toner kit, and developer, process cartridge, image forming method and image forming apparatus Takuya Kadota, Minoru Nakamura, Masayuki Hagi, Yoshihiro Mikuriya, Katsunori Kurose +4 more 2010-11-16
7817946 Developing device, image developing method, image forming apparatus, image forming method, and process cartridge Hiroyuki Murakami, Masahide Inoue, Masayuki Hagi, Takuya Kadota, Yoshihiro Mikuriya +4 more 2010-10-19
7785760 Toner and method of preparing the toner Atsushi Yamamoto, Chiyoshi Nozaki, Tsuyoshi Nozaki, Minoru Nakamura 2010-08-31
7749671 Toner for developing a latent electrostatic image, image-forming method, image-forming apparatus and process cartridge using the same Atsushi Yamamoto, Masahide Inoue, Chiyoshi Nozaki, Minoru Nakamura, Masayuki Hagi +6 more 2010-07-06
7727694 Toner for developing electrostatic image, and image forming method and apparatus and process cartridge using the toner Hiroyuki Murakami, Masahide Inoue, Masayuki Hagi, Takuya Kadota, Yoshihiro Mikuriya +3 more 2010-06-01