Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376597 | Lead-free glass composition having properties similar to lead crystal glass | Haruhiko Ogata, Shizue Inaba | 1994-12-27 |
| 5332411 | Glass article cutting method | Haruhiko Ogata, Katumi Ohgaki | 1994-07-26 |
| 5322542 | Method of and apparatus for chamfering edge of glass vessel | Haruhiko Ogata, Fumio Oguni | 1994-06-21 |