Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821590 | Color erasing apparatus, color erasing system and color erasing control method | Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Takayasu Aoki +1 more | 2017-11-21 |
| 9798260 | Decolorizable toner | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda | 2017-10-24 |
| 9757969 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara | 2017-09-12 |
| 9555657 | Color erasing apparatus, color erasing system and color erasing control method | Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Takayasu Aoki +1 more | 2017-01-31 |
| 9539843 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara | 2017-01-10 |
| 9366983 | Decolorizable toner | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda | 2016-06-14 |
| 9291950 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara | 2016-03-22 |
| 9277075 | Color erasing apparatus, color erasing system and color erasing control method | Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Takayasu Aoki +1 more | 2016-03-01 |
| 9217941 | Method of manufacturing erasable toner | Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda, Takayasu Aoki, Masahiro Ikuta +1 more | 2015-12-22 |
| 9128394 | Electrophotographic toner and method for producing the same | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda | 2015-09-08 |
| 8940468 | Decolorable toner and process for production thereof | Takayasu Aoki, Takafumi Hara, Tsuyoshi Itou, Masahiro Ikuta, Koji Shimokusa +1 more | 2015-01-27 |
| 8790857 | Toner and process for production thereof | Tsuyoshi Itou, Kazuhisa Takeda, Takayasu Aoki, Masahiro Ikuta, Takafumi Hara | 2014-07-29 |
| 8785097 | Erasable toner and process for production thereof | Takayasu Aoki, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara | 2014-07-22 |
| 8227167 | Developing agent and method for producing developing agent | Tsuyoshi Itou, Takayasu Aoki, Takashi Urabe, Yasuhito Noda, Satoshi Araki +3 more | 2012-07-24 |
| 8029962 | Developing agent | Takayasu Aoki, Masahiro Ikuta, Tsuyoshi Itou, Takashi Urabe, Takafumi Hara +2 more | 2011-10-04 |
| 8012661 | Method for producing developing agent | Takayasu Aoki, Takashi Urabe, Tsuyoshi Itou, Yasuhito Noda, Satoshi Araki +2 more | 2011-09-06 |
| 8003290 | Developing agent and method for manufacturing the same | Takashi Urabe, Tsuyoshi Ito, Masahiro Ikuta | 2011-08-23 |
| 7985525 | Method for producing developing agent | Masahiro Ikuta, Takayasu Aoki, Takashi Urabe, Tsuyoshi Ito, Satoshi Araki | 2011-07-26 |
| 7981587 | Developing agent and method for producing the same | Takayasu Aoki, Masahiro Ikuta, Tsuyoshi Itou, Takashi Urabe, Satoshi Araki | 2011-07-19 |
| 7960086 | Developing agent and method for manufacturing the same | Takayasu Aoki, Takashi Urabe, Takafumi Hara, Tsuyoshi Itou, Masahiro Ikuta +3 more | 2011-06-14 |
| 7901862 | Developing agent and method for manufacturing the same | Tsuyoshi Itou, Takayasu Aoki, Takashi Urabe, Yasuhito Noda, Satoshi Araki +2 more | 2011-03-08 |
| 7851120 | Developing agent and method for producing the same | Takashi Urabe, Takayasu Aoki, Tsuyoshi Itou, Yasuhito Noda, Satoshi Araki +3 more | 2010-12-14 |
| 7846634 | Developing agent | Takashi Urabe, Satoshi Araki, Takayasu Aoki, Tsuyoshi Ito, Yasuhito Noda +2 more | 2010-12-07 |
| 7794912 | Developing agent and method for manufacturing the same | Takashi Urabe, Tsuyoshi Ito, Masahiro Ikuta | 2010-09-14 |
| 7763408 | Method for manufacturing developing agent | Takashi Urabe, Tsuyoshi Itou, Masahiro Ikuta | 2010-07-27 |