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Shoichiro Furuta Patents |
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Inventor: Furuta; Shoichiro
Address: Aza-Gohigashi, JP
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4944962 |
Method for dirtproofing treatment for plastic lens |
July 31, 1990 |
| A method is disclosed which concerns the treatment for imparting dirtproofness to a plastic lens provided in advance on the surface thereof with an antireflection film formed by vacuum evaporation of an inorganic substance. This method forms a dirtproofing film on the antireflection |
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