Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686022 | Phosphorescent phosphor | Yoshihiko Murayama, Nobuyoshi Takeuchi, Yasumitsu Aoki | 1997-11-11 |
| 5424006 | Phosphorescent phosphor | Yoshihiko Murayama, Nobuyoshi Takeuchi, Yasumitsu Aoki | 1995-06-13 |
| 5117467 | Colony counting apparatus | Hideo Misaki, Shigeru Ueda, Kazuhiro Watanabe, Yuzo Ishikawa, Hirao Nagae | 1992-05-26 |
| 5091155 | Alcohol concentration sensor | Hideto Takayama, Yoshihiro Tsuruoka, Hirao Nagae | 1992-02-25 |