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Masaaki Tada Patents |
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Inventor: Tada; Masaaki
Address: Yamagata, JP
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5577857 |
Joint structure for pillars and its joining method |
November 26, 1996 |
| End plates are forcibly fixed on the longitudinal end surfaces of pillars such as foundation piles buried in the ground. The upper and lower end plates are butted, and are vertically held by a circumferential recessed groove on the inner surface of an inside ring which is divided in a |
| 4028097 |
Self-lubricating iron base alloy |
June 7, 1977 |
| The coefficient-of-friction of iron base alloys containing molybdenum is lowered by incorporation of sulphur or selenium. The wear resistance is greatly increased by adding carbon with little if any increase in the coefficient-of-friction. A method of preparation is disclosed. |
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