Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421396 | Silica particles and method for producing the same | Yuka ZENITANI, Sakae TAKEUCHI, Koji Sasaki, Mai MOCHIDA | 2025-09-23 |
| 12351467 | Silica particle and method for producing the same | Yuka ZENITANI, Koji Sasaki, Sakae TAKEUCHI, Takahiro Mizuguchi | 2025-07-08 |
| 12287607 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method | Shimpei Takagi, Sakae TAKEUCHI, Yuka ZENITANI, Koji Sasaki, Mai MOCHIDA | 2025-04-29 |
| 12215033 | Silica particles comprising nitrogen element-containing compound containing molybdenum element | Yuka ZENITANI, Sakae TAKEUCHI, Koji Sasaki, Mai MOCHIDA | 2025-02-04 |
| 12162769 | Silica particles and manufacturing method thereof | Koji Sasaki, Sakae TAKEUCHI, Yuka ZENITANI, Mai MOCHIDA | 2024-12-10 |
| 12077443 | Silica particles and method for producing the same | Yuka ZENITANI, Sakae TAKEUCHI, Koji Sasaki, Mai MOCHIDA | 2024-09-03 |
| 11866340 | Silica particle and method for producing the same | Yuka ZENITANI, Koji Sasaki, Sakae TAKEUCHI, Takahiro Mizuguchi | 2024-01-09 |
| 11795302 | Resin particles and method for manufacturing resin particles | Koji Sasaki, Takahiro Mizuguchi, Yuka ZENITANI, Sakae TAKEUCHI | 2023-10-24 |
| 11535757 | Organic substance-attached porous inorganic oxide particle | Takahiro Mizuguchi, Sakae TAKEUCHI, Yuka ZENITANI, Koji Sasaki | 2022-12-27 |
| 10570020 | Silica particle and method of preparing silica particle | Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima, Yuka ZENITANI +5 more | 2020-02-25 |
| 10100176 | Resin particle composition | Sakae TAKEUCHI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Yasuo Kadokura +5 more | 2018-10-16 |
| 10081718 | Resin particle composition | Sakae TAKEUCHI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-09-25 |
| 10061216 | Electrostatic image developer and toner, electrostatic image developer and toner cartridge | Yuka ZENITANI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-08-28 |
| 9946178 | Toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method | Yasuo Kadokura, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-04-17 |
| 9904197 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima, Yuka ZENITANI +5 more | 2018-02-27 |
| 9891543 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Yasuo Kadokura, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-02-13 |
| 9885966 | Electrostatic charge image developing toner, electrostatic charge image developer and toner cartridge | Tomohito Nakajima, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Yuka ZENITANI +5 more | 2018-02-06 |
| 9864287 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Yoshifumi Iida, Hiroyoshi Okuno, Satoshi Inoue, Tomohito Nakajima, Yuka ZENITANI +5 more | 2018-01-09 |
| 9835963 | Magnetic one-component developer, developer cartridge, process cartridge, image forming apparatus, and image forming method | Satoshi Inoue, Hiroyoshi Okuno, Yoshifumi Iida, Tomohito Nakajima, Yuka ZENITANI +5 more | 2017-12-05 |
| 9835966 | Electrostatic charge image developer, developer cartridge, and process cartridge | Yasuhisa Morooka, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2017-12-05 |
| 9785069 | Image forming apparatus, electrostatic charge image developer, and electrostatic charge image developing toner | Yoshifumi Iida, Hiroyoshi Okuno, Satoshi Inoue, Tomohito Nakajima, Yuka ZENITANI +5 more | 2017-10-10 |
| 9726998 | Electrostatic charge image developer, developer cartridge, and process cartridge | Yasuhisa Morooka, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2017-08-08 |
| 9726994 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima, Yuka ZENITANI +5 more | 2017-08-08 |
| 9058001 | Image forming apparatus | Narumasa SATO, Eiji Nakai, Katsuyuki Kitajima, Makoto Kamisaki, Toyofumi Inoue +3 more | 2015-06-16 |