Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215240 | Aqueous ink, ink cartridge and ink jet recording method | Kuniaki Fujimoto, Saki Tasaki, Hideki Yamakami | 2025-02-04 |
| 11702556 | Aqueous ink, ink cartridge and ink jet recording method | Kuniaki Fujimoto, Saki Tasaki | 2023-07-18 |
| 11086242 | Toner and method for producing toner | Naoya Isono, Keiichiro Tsubaki | 2021-08-10 |
| 10948839 | Toner having a toner particle with a binder resin containing a copolymer of a styrenic polymerizable monomer, and at least one of an acrylic or methacrylic polymerizable monomer | Keiichiro Tsubaki, Naoya Isono | 2021-03-16 |
| 10216107 | Toner and method of producing toner | Keiichiro Tsubaki, Naoya Isono, Masao Suzuki | 2019-02-26 |
| 10087328 | Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and toner | Yuki Tsujii, Waka Hasegawa, Ayano Mashida, Kosuke Mukumoto, Takayuki Toyoda +4 more | 2018-10-02 |
| 9926450 | Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner | Masashi Kawamura, Kosuke Mukumoto, Yuki Tsujii, Ayano Mashida, Waka Hasegawa +4 more | 2018-03-27 |
| 9834683 | Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner | Chiaki Nishiura, Yuki Tsujii, Takayuki Toyoda, Waka Hasegawa, Masanori Seki +3 more | 2017-12-05 |
| 9829814 | Toner | Yu Yoshida, Yuhei Terui, Haruko Kubo, Masashi Kawamura, Takayuki Toyoda | 2017-11-28 |
| 9777087 | Polymer including phthalocyanine structure, method for producing the polymer, pigment composition, pigment dispersion, and toner | Osamu Matsushita, Takayuki Toyoda, Waka Hasegawa, Ayano Mashida, Kosuke Mukumoto +1 more | 2017-10-03 |
| 9715187 | Method of producing a compound having a colorant structure, and toner containing a compound obtained by the production method | Kosuke Mukumoto, Yuki Hasegawa, Takayuki Toyoda, Ayano Mashida, Waka Hasegawa +3 more | 2017-07-25 |
| 9625845 | Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner | Ayano Mashida, Waka Hasegawa, Masanori Seki, Takayuki Toyoda, Masashi Kawamura +4 more | 2017-04-18 |
| 9618867 | Pigment dispersion and toner | Takayuki Toyoda, Waka Hasegawa, Masanori Seki, Chiaki Nishiura, Yuki Tsujii +2 more | 2017-04-11 |
| 9593243 | Compound, pigment dispersing agent, pigment composition, pigment dispersion and toner containing said compound | Yuki Tsujii, Takayuki Toyoda, Waka Hasegawa, Masanori Seki, Chiaki Nishiura +3 more | 2017-03-14 |
| 9556290 | Method for producing compound having colorant structure at main chain terminal of polymer, and pigment dispersant, pigment composition, pigment dispersion and toner containing compound obtained by the production method | Chiaki Nishiura, Yuki Hasegawa, Ayano Mashida, Takayuki Toyoda, Masashi Hirose +3 more | 2017-01-31 |
| 9505723 | Compound, dispersant and toner | Haruko Kubo, Suzuka Ueno, Junko Chizuwa, Tomoya Yamamoto, Hitoshi Itabashi +3 more | 2016-11-29 |
| 9470995 | Compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound | Masanori Seki, Yuki Hasegawa, Waka Hasegawa, Masashi Kawamura, Taiki Watanabe +4 more | 2016-10-18 |
| 9410038 | Compound, ink, ink cartridge and ink jet recording method | Masahiro Suenaga, Kaoru Takahashi, Takeshi Miyazaki, Yutaka Tani, Masashi Hirose +3 more | 2016-08-09 |
| 9298118 | Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and toner | Masashi Kawamura, Waka Hasegawa, Yuki Hasegawa, Takayuki Toyoda, Taiki Watanabe +4 more | 2016-03-29 |
| 9250552 | Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agent | Kei Inoue, Ryuji Murayama, Kazuyuki Sato, Soichiro Kawakami, Masashi Hirose | 2016-02-02 |
| 9249308 | Compound having bisazo dye skeleton, pigment composition containing the same, pigment dispersion, ink, and color filter resist composition | Yuki Hasegawa, Masatake Tanaka, Takayuki Toyoda, Masashi Kawamura, Waka Hasegawa +1 more | 2016-02-02 |
| 9176407 | Toner and method for manufacturing toner particles | Yuki Hasegawa, Masatake Tanaka, Takayuki Toyoda, Masashi Kawamura, Waka Hasegawa +1 more | 2015-11-03 |
| 9170514 | Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agent | Kei Inoue, Ryuji Murayama, Kazuyuki Sato, Masashi Hirose | 2015-10-27 |
| 9097999 | Polyester, pigment composition, and toner | Masashi Kawamura, Masatake Tanaka, Takayuki Toyoda, Yuki Hasegawa, Masashi Hirose +1 more | 2015-08-04 |
| 8962726 | Compound having bisazo skeleton, pigment dispersant containing the compound, pigment composition, pigment dispersion, ink and resist composition for color filter | Masatake Tanaka, Masashi Hirose, Takayuki Toyoda, Waka Hasegawa, Masashi Kawamura +1 more | 2015-02-24 |