Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138223 | Tubular fluorescent lamp with intermediate electrode | Takeo Yasuda | 1992-08-11 |
| 4503358 | Fluorescent lamp having separate cooling means for ballast and fluorescent tube | Taketo Kamei | 1985-03-05 |
| 4456854 | Compact fluorescent lamp | Motokazu Hayashi, Taketo Kamei | 1984-06-26 |
| 4449072 | Compact fluorescent lamp | — | 1984-05-15 |
| D271997 | Compact fluorescent lamp | Taketo Kamei, Masumi Nanba, Nobuhiro Umehara, Yoshio Kojima | 1983-12-27 |
| 4417176 | Compact fluorescent lamp | Taketo Kamei, Motokazu Hayashi, Mitsutoshi Kimura | 1983-11-22 |