Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6312317 | Method for the production of glass product | — | 2001-11-06 |
| 6225244 | Glass for near absorption filter and near infrared absorption filter to which the glass is applied | — | 2001-05-01 |
| 6093484 | Method for the production of glass product | — | 2000-07-25 |
| 5668066 | Near infrared absorption filter glass | Kazuo Tachiwana | 1997-09-16 |