Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8734680 | Silicate-based phosphor and manufacturing method of silicate-based phosphor | Kenji Toda, Mineo Sato, Tadashi Ishigaki, Hideo Suda, Etsuko Minegishi +1 more | 2014-05-27 |
| 8384284 | Phosphors having high light emission luminescence | Kenji Toda, Mineo Sato, Tetsu Umeda, Yutaka Ito | 2013-02-26 |
| 8017039 | Fluorescent body for use in a near-ultraviolet excitation light-emitting element | Kenji Toda, Mineo Sato, Tetsu Umeda, Yutaka Ito | 2011-09-13 |
| 7662311 | Fluorescent substance for light-emitting diode | Kenji Toda, Mineo Sato, Shinichiro Kousaka, Yoshitaka Kawakami | 2010-02-16 |
| 7642520 | Method for measuring randon and thoron in air | Mineo Sato, Masatoshi Ota, Kenji Toda | 2010-01-05 |
| 5464225 | Oil leakage preventive method | Kishio Takeshita, Minoru Ozawa | 1995-11-07 |