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Hisao Negoro Patents |
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Inventor: Negoro; Hisao
Address: Sennan-gun, Osaka, JP
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D272828 |
Chuck |
February 28, 1984 |
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| 4553765 |
Dust guard for a scroll chuck |
November 19, 1985 |
| In a scroll chuck accommodating a scroll plate, a dust guard is fitted in a continuous groove formed by the scroll thread of the scroll plate. The dust guard consists of an elastic cord made of a material having rubber-like elasticity, and has such a length as to extend over the full |
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