Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9352994 | Method for vacuum-degassing molten glass, apparatus for vacuum-degassing molten glass, process for producing molten glass, apparatus for producing molten glass, process for producing glass product, and apparatus for producing glass product | Terutaka Maehara, Shuji Kabashima | 2016-05-31 |
| 8720229 | Vacuum degassing apparatus, apparatus for producing glass products and process for producing glass products | Hironobu Yamamichi, Hiroaki Hamamoto, Hajime Itoh, Housaku Yonetsu | 2014-05-13 |
| 7650764 | Vacuum degassing apparatus for molten glass | Mitsuyoshi Sakai, Michito Sasaki, Hajime Itoh, Atsushi Tanigaki | 2010-01-26 |
| 7007514 | Vacuum degassing apparatus for molten glass | Mitsuyoshi Sakai, Michito Sasaki, Hajime Itoh, Atsushi Tanigaki | 2006-03-07 |
| 7000432 | Process for producing a glass for cathode ray tubes | Hajime Itoh, Mitsuyoshi Sakai, Keito Sekine, Misao Okada | 2006-02-21 |