Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11597230 | Volume hologram sheet to be embedded, forgery prevention paper, and card | Nobuko Oikawa | 2023-03-07 |
| 11077698 | Volume hologram sheet to be embedded, forgery prevention paper, and card | Nobuko Oikawa | 2021-08-03 |
| 10474099 | Method of producing volume hologram laminate | Koji Eto, Hiroyuki Ohtaki, Yoshihito Maeno, Sakurako Hatori | 2019-11-12 |
| 9709952 | Photosensitive composition for volume hologram recording, photosensitive substrate for volume hologram recording, and volume hologram recorded medium | Koji Eto, Nobuko Oikawa, Eriko Hamade, Keisuke Miura | 2017-07-18 |
| 9529324 | Method of producing volume hologram laminate | Koji Eto, Hiroyuki Ohtaki, Yoshihito Maeno, Sakurako Hatori | 2016-12-27 |
| 9213311 | Volume hologram transfer foil | Dai Tsukada, Koji Eto, Nobuko Oikawa, Takaki Miyachi, Shinya Sato | 2015-12-15 |
| 8861056 | Volume hologram transfer foil, volume hologram laminate, and production method thereof | Koji Eto, Kazutoshi Awano, Kenji Ueda | 2014-10-14 |
| 8852828 | Volume hologram photosensitive composition | Yoshihito Maeno, Hiroyuki Ohtaki | 2014-10-07 |
| 8697314 | Method of producing volume hologram laminate | Koji Eto, Hiroyuki Ohtaki, Yoshihito Maeno, Sakurako Hatori | 2014-04-15 |
| 8559084 | Volume hologram transfer foil, volume hologram laminate, and production method thereof | Koji Eto, Kazutoshi Awano, Kenji Ueda | 2013-10-15 |
| 8134660 | Optical diffusion device, projection screen, design member and security medium | Masanori Umeya, Masachika Watanabe | 2012-03-13 |
| 7909364 | Indicator for indicating authenticity | Masachika Watanabe, Masanori Umeya, Tsuyoshi Yamauchi, Koji Eto | 2011-03-22 |
| 7846520 | Counterfeiting prevention label and method of manufacturing the same | Hirotada Ookawa, Kenji Ueda | 2010-12-07 |
| 7745065 | Volume hologram transfer foil, and volume hologram multilayer structure | Koji Eto | 2010-06-29 |
| 7090935 | Magnetic card | Kenji Ueda, Tetsuya Toshine, Toru Nishioka, Atsushi Umezawa, Akihiro Mizumura | 2006-08-15 |