Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5305224 | Fuzzy control for a lamp glass pipe sealing process | Masahiko Hishida, Terukuni Yokoyama, Yoshihiro Atsumi, Yasuo Ban | 1994-04-19 |
| 4975620 | Metal vapor discharge lamp and method of producing the same | Yasuo Ban | 1990-12-04 |
| 4827190 | Metal vapor discharge lamp and method of producing the same | Yasuo Ban | 1989-05-02 |
| 4567403 | High pressure discharge lamp with incorporated starter | Yoshio Ohtagaki, Masafumi Ochi, Kanichi Tachibana, Akio Uchida | 1986-01-28 |