MN

Masashi Nagayama

Ricoh Company: 40 patents #359 of 9,818Top 4%
Honda Motor Co.: 3 patents #6,619 of 21,052Top 35%
Overall (All Time): #69,461 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 1–25 of 43 patents

Patent #TitleCo-InventorsDate
12379678 Carrier for forming electrophotographic image, developer, image forming method, image forming apparatus, and process cartridge Namie Suzuki, Kousuke Suzuki, Tohru Suganuma, Minoru Masuda, Hiroyuki Kishida +2 more 2025-08-05
12372893 Carrier, developer, image forming method, and process cartridge Kaede Masuko, Tohru Suganuma, Minoru Masuda, Hiroyuki Kishida, Tomomi Suzuki +1 more 2025-07-29
12306582 Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge Kousuke Suzuki, Masahiro Seki, Hiroyuki Kishida, Namie Suzuki 2025-05-20
12147192 Carrier for developing electrostatic latent image, two-component developer, image forming apparatus, process cartridge, and image forming method Hiroyuki Kishida, Kousuke Suzuki, Tohru Suganuma, Minoru Masuda, Kento Takeuchi +1 more 2024-11-19
12105472 Carrier for forming electrophotographic image, developing agent for forming electrophotographic image, method of forming electrophotographic image, electrophotographic image forming apparatus, and process cartridge Kento Takeuchi, Tohru Suganuma, Tomomi Suzuki 2024-10-01
11934145 Developing apparatus, developer for electrophotographic image formation, electrophotographic image forming method, and electrophotographic image forming apparatus Minoru Masuda, Tohru Suganuma, Hiroyuki Kishida, Kento Takeuchi, Kaede Masuko +3 more 2024-03-19
11106150 Carrier, developer, method, and apparatus for forming electrophotographic image, and process cartridge Hiroyuki Kishida, Masahiro Seki, Yoshimichi Ishikawa, Saori Yamada 2021-08-31
10474051 Carrier for developer of electrostatic latent image, two-component developer, replenishing developer, image forming apparatus, and toner stored unit Mariko Takii, Koichi Sakata, Tohru Suganuma, Masahiro Seki, Shinya Nakagawa +1 more 2019-11-12
10444651 Carrier, developer, supplemental developer, image forming apparatus, image forming method, and process cartridge Mariko Takii, Koichi Sakata, Tohru Suganuma, Masahiro Seki, Toyoaki Tano +1 more 2019-10-15
10274856 Toner for electrophotography, image forming method, and process cartridge Hisashi Nakajima, Kazumi Suzuki, Saori Yamada, Yoshitaka Yamauchi, Yu Naito +1 more 2019-04-30
10203620 Toner, image forming method, and process cartridge Yu Naito, Kazumi Suzuki, Yoshitaka Yamauchi, Hisashi Nakajima, Saori Yamada 2019-02-12
10025214 Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge Mariko Takii, Yoshihiro Murasawa, Haruki Murata, Kei Niwayama, Tohru Suganuma +4 more 2018-07-17
9946177 Carrier, two-component developer, image forming apparatus, process cartridge, and image forming method Yoshihiro Murasawa, Koichi Sakata, Toyoaki Tano, Hiroyuki Kishida 2018-04-17
9765731 Canister arrangement structure for saddle-ride type vehicle Katsuyuki Okubo, Masanori Nakamura, Tetsunori Iwamoto, Takasumi Yamanaka, Matake Sugeno 2017-09-19
9482971 White toner, and image forming method and image forming apparatus using the white toner Kazumi Suzuki, Hisashi Nakajima, Saori Yamada, Yoshitaka Yamauchi, Yu Naito 2016-11-01
9348259 Toner housing container and image forming apparatus Hisashi Nakajima, Yoshitaka Sekiguchi, Saori Yamada, Shinya Hanatani, Mariko Takii +6 more 2016-05-24
9182694 Toner, image forming apparatus, image forming method, and process cartridge Saori Yamada, Hisashi Nakajima, Shinya Hanatani, Mariko Takii, Yoshitaka Sekiguchi 2015-11-10
9170530 Powder container and image forming apparatus incorporating same Yuki Oshikawa, Yuuki Satoh, Takuya Seshita, Toshiki Hayashi, Hiroyuki Uenishi +1 more 2015-10-27
9128398 Toner for forming electrophotographic image, method for manufacturing toner for forming electrophotographic image, image forming method, and process cartridge Mitsuo Aoki, Hisashi Nakajima, Saori Yamada, Mariko Takii 2015-09-08
9005862 Toner, image forming method, and process cartridge Hisashi Nakajima, Saori Yamada, Shinya Hanatani, Mariko Takii, Yoshitaka Sekiguchi 2015-04-14
8905419 Rear structure of saddle-ride type vehicle Masanori Nakamura, Takasumi Yamanaka, Michio Atsuchi, Kyosuke Inada, Noriyoshi Sasaki +1 more 2014-12-09
8774655 Image forming apparatus Motohiro Usami, Takahiro Seki, Shinji Aoki, Jun Hitosugi 2014-07-08
8757312 Frame structure for saddle-ride type vehicle Tomoyuki Maruyama, Hiroyuki Shinmura 2014-06-24
8741529 Image forming method, image forming apparatus, and process cartridge Mitsuo Aoki, Hisashi Nakajima, Saori Yamada 2014-06-03
8728696 Toner, image forming method, and process cartridge Saori Yamada, Mitsuo Aoki, Hisashi Nakajima, Shigenori Yaguchi 2014-05-20