Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8067322 | Glass composition for lamp, glass part for lamp, and process for producing lamp or glass composition for lamp | Ryousuke Sawa, Junko Abe, Masanobu Itou, Tomoko Akai, Masaru Yamashita | 2011-11-29 |
| 6921730 | Glass composition, protective-layer composition, binder composition, and lamp | Masanobu Ito | 2005-07-26 |
| 6906475 | Fluorescent lamp and high intensity discharge lamp with improved luminous efficiency | — | 2005-06-14 |
| 6812175 | Glass composition for an electric lamp, stem and bulb for an electric lamp using the same, and electric lamp using the same | Akira Kawase, Masanobu Ito | 2004-11-02 |