Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7648765 | Dispersion of carbon nanoparticles and core-shell type carbon nanoparticles, and method of preparing the same | Hisamitsu Takahashi, Shigeo Itoh | 2010-01-19 |
| 7300958 | Ultra-dispersed nanocarbon and method for preparing the same | Eiji OSAWA, Takahiro Fujino, Makoto Takahashi, Osamu Idohara, Akira Terajima +3 more | 2007-11-27 |
| 6517740 | Phosphor and method for preparing same | Kiyoshi Tamura, Yoshitaka Sato, Yuji Nomura | 2003-02-11 |
| 6303403 | Method for preparing gallium nitride phosphor | Yoshitaka Sato, Yoriko Suda, Hitoshi Toki, Yuji Nomura | 2001-10-16 |
| 6168729 | Fluorescent material and fluorescent display device | Hitoshi Toki, Shigeo Itoh, Yoshitaka Sato | 2001-01-02 |
| 5858278 | Phosphor and method for producing same | Shigeo Itoh, Hitoshi Toki, Hisashi Kanie | 1999-01-12 |
| 5804098 | Low-velocity electron excited phosphor | Yoshitaka Satoh, Hitoshi Toki, Shigeo Itoh | 1998-09-08 |
| 5619098 | Phosphor and fluorescent display device | Hitoshi Toki, Shigeo Itoh | 1997-04-08 |
| 5520847 | Low-velocity electron excited phosphor | Yoshitaka Satoh, Hitoshi Toki, Shigeo Itoh | 1996-05-28 |