Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12162298 | Manufacturing method of printed material | Takafumi Hara, Maiko Miyoshi | 2024-12-10 |
| 10057452 | Image forming system and image forming method | Norifumi Yagi, Takao Ishida, Kanya Hiroi, Hiroshi Hashidume, Kazuhiro Ogura +1 more | 2018-08-21 |
| 9891573 | Apparatus and method for forming an image on a recording medium using erasable material and non-erasable material | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2018-02-13 |
| 9868314 | Decoloring method and decoloring device | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2018-01-16 |
| 9796200 | Decoloring method and decoloring device | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2017-10-24 |
| 9684273 | Apparatus that forms an image on a medium using a plurality of erasable materials and erasing apparatus | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2017-06-20 |
| 9619188 | Image forming system and image forming method | Norifumi Yagi, Takao Ishida, Kanya Hiroi, Hiroshi Hashidume, Kazuhiro Ogura +1 more | 2017-04-11 |
| 9481193 | Apparatus and method for forming an image on a medium using a plurality of erasable materials | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2016-11-01 |
| 9248661 | Decoloring method and decoloring device | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2016-02-02 |
| 9250837 | Image forming system and image forming method | Norifumi Yagi, Takao Ishida, Kanya Hiroi, Hiroshi Hashidume, Kazuhiro Ogura +1 more | 2016-02-02 |
| 9158252 | Apparatus and method for forming an image on a recording medium using erasable material and non-erasable material | Norifumi Yagi, Takao Ishida, Kanya Hiroi | 2015-10-13 |
| 6349640 | Seal type composite stencil and plychrome picture forming method | Saburo TAKEBE, Mamoru Mogi, Yoshiyuki Tachikawa, Hiroshi Ueda | 2002-02-26 |
| 6201815 | Transport packet stream separating circuit in which packet can be discarded on error | — | 2001-03-13 |
| 5762879 | Reaction heat control mechanism of heat exchange area regulation type in a chemical reaction apparatus | Nobuo Ashizawa | 1998-06-09 |