KO

Keiko Osaka

Ricoh Company: 17 patents #1,283 of 9,818Top 15%
Overall (All Time): #270,085 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
11667055 Method and apparatus for producing particles, particles, composition, particles dispersion liquid, and method for producing the particles dispersion liquid Chiaki Tanaka 2023-06-06
11628617 Formation method of three-dimensional object with metal and/or ceramic particles and thin organic resin Teruki Kusahara, Masaki Watanabe, Mitsuru Naruse, Mariko Kojima, Yasuyuki Yamashita +1 more 2023-04-18
10828827 Powder material for three-dimensional object formation, hardening liquid and three-dimensional object formation kit, and formation method and formation apparatus of three-dimensional object Teruki Kusahara, Masaki Watanabe, Mitsuru Naruse, Mariko Kojima, Yasuyuki Yamashita +1 more 2020-11-10
10767071 Liquid material for forming three-dimensional object and material set for forming three-dimensional object, three-dimensional object producing method and three-dimensional object producing apparatus Takeo Yamaguchi 2020-09-08
10293555 Liquid material for forming three-dimensional object and material set for forming three-dimensional object, and three-dimensional object producing method Mariko Kojima, Yoshihiro Norikane, Hiroshi Iwata, Mitsuru Naruse, Nozomu Tamoto 2019-05-21
9994702 Liquid material for forming three-dimensional object and material set for forming three-dimensional object, and three-dimensional object producing method and three-dimensional object producing apparatus Mariko Kojima, Yoshihiro Norikane, Hiroshi Iwata 2018-06-12
9669565 Particles and method for producing particles Chiaki Tanaka 2017-06-06
9611376 Method for producing particles and apparatus for producing particles Chiaki Tanaka, Akira Suzuki, Shinichiro Kawasaki 2017-04-04
9469723 Particle manufacturing method, particles, and particle manufacturing apparatus Chiaki Tanaka, Taichi Nemoto 2016-10-18
8691486 Electrostatic image developing toner, developer, image forming apparatus, image forming method, and process cartridge Ryota Inoue, Akihiro Kotsugai, Akiyoshi Sabu, Shingo Sakashita, Yukiko Nakajima 2014-04-08
8679714 Toner, developer, and image forming method Ryota Inoue, Akihiro Kotsugai, Yoshihiro Moriya, Akiyoshi Sabu, Shingo Sakashita +3 more 2014-03-25
8632932 Toner, color toner set, developer, process cartridge, and image forming method Akiyoshi Sabu, Akihiro Kotsugai, Ryota Inoue, Shingo Sakashita, Yukiko Nakajima +1 more 2014-01-21
8623580 Toner, developer, image forming method and image forming apparatus Yukiko Nakajima, Akihiro Kotsugai, Ryota Inoue, Akiyoshi Sabu, Shingo Sakashita 2014-01-07
8603713 Toner, and developer, toner cartridge, image forming apparatus, process cartridge and image forming method using the same Akihiro Kotsugai, Toyoshi Sawada, Ryota Inoue, Akiyoshi Sabu, Shingo Sakashita +1 more 2013-12-10
8524437 Particle producing method, particle, toner, developer, process cartridge, image forming method, image forming apparatus, and particle producing method Yoshitaka Yamauchi, Chiaki Tanaka, Taichi Nemoto, Shinji Ohtani 2013-09-03
8396399 Toner bearing member, developing device, image forming apparatus, and image forming method Yasuyuki Yamashita, Ryoichi Kitajima 2013-03-12
8369755 Developing device and image forming apparatus using the developing device Yasuyuki Yamashita, Ryoichi Kitajima 2013-02-05