Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10684568 | Reversibly allochroic toner, method of producing the same, toner cartridge, and image forming apparatus | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Yasuhito Noda, Kazuhisa Takeda | 2020-06-16 |
| 9933721 | Electrophotographic toner and method for producing the same | Masahiro Ikuta, Takahito Kabai, Tsuyoshi Itou | 2018-04-03 |
| 9821590 | Color erasing apparatus, color erasing system and color erasing control method | Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo +1 more | 2017-11-21 |
| 9757969 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takafumi Hara | 2017-09-12 |
| 9671727 | Method for erasing image | Koji Imamiya, Katsunori Mizuta | 2017-06-06 |
| 9555657 | Color erasing apparatus, color erasing system and color erasing control method | Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo +1 more | 2017-01-31 |
| 9539843 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takafumi Hara | 2017-01-10 |
| 9519236 | Reversibly allochroic toner, method of producing the same, toner cartridge, and image forming apparatus | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Yasuhito Noda, Kazuhisa Takeda | 2016-12-13 |
| 9500969 | Electrophotographic toner and method for producing the same | Masahiro Ikuta, Takahito Kabai, Tsuyoshi Itou | 2016-11-22 |
| 9360781 | Toner set for printing system and printing system | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda | 2016-06-07 |
| 9348249 | Image forming apparatus and image forming and decoloring system | Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Yasuhito Noda, Takafumi Hara | 2016-05-24 |
| 9298143 | Method for erasing image | Koji Imamiya, Katsunori Mizuta | 2016-03-29 |
| 9291950 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, 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, Motonari Udo +1 more | 2016-03-01 |
| 9261805 | Toner set for printing system and printing system | Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda | 2016-02-16 |
| 9221290 | Apparatus and method for forming an image with a plurality of decolorizable materials and for decolorizing the image | — | 2015-12-29 |
| 9217941 | Method of manufacturing erasable toner | Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda, Masahiro Ikuta, Takafumi Hara +1 more | 2015-12-22 |
| 9201327 | Electrophotographic toner | Yasuhito Noda, Koji Imamiya, Tsuyoshi Itou, Noboru Furuyama | 2015-12-01 |
| 9164408 | Electrophotographic toner | Koji Imamiya, Tsuyoshi Itou | 2015-10-20 |
| 9063444 | Developing agent and method of manufacturing the same | Takahito Kabai, Tsuyoshi Itoh | 2015-06-23 |
| 8940468 | Decolorable toner and process for production thereof | Takafumi Hara, Tsuyoshi Itou, Masahiro Ikuta, Motonari Udo, Koji Shimokusa +1 more | 2015-01-27 |
| 8894193 | Decolorizable water-based inkjet ink | Takafumi Hara, Tsuyoshi Itou | 2014-11-25 |
| 8892020 | Image forming apparatus and image forming method | Koji Imamiya, Tsuyoshi Itou, Hiromichi Mitamura, Noboru Furuyama | 2014-11-18 |
| 8865388 | Electrophotographic toner and process for producing electrophotographic toner | Takahito Kabai, Tsuyoshi Itou | 2014-10-21 |
| 8790857 | Toner and process for production thereof | Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda, Masahiro Ikuta, Takafumi Hara | 2014-07-29 |