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TK Co., Ltd. Patents |
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Assignee: TK Co., Ltd.
Address: Nagano, JP
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7385156 |
Press-fit joint structure |
June 10, 2008 |
| A forced-insertion welded structure is provided which is formed by welding members making up a metal component and which is easy to manufacture and has low cost, a good finish precision and a high bonding strength.The forced-insertion welded structure comprises: a first member 2 with a h |
| 6730428 |
Method of recycling lead-acid storage battery |
May 4, 2004 |
| The lead sulfate (PbSO.sub.4) deposited on the surface of the positive electrode 18 or negative electrode 20 is reduced owing to the flow of the pulsating direct current from the positive electrode 18 toward the negative electrode 20 in the sullation removing step 34, while at the same |
| 4377916 |
Chain-like toy of triangular hollow prisms |
March 29, 1983 |
| A chain-like toy made of a plurality of isosceles triangular hollow prism units that are connected serially with one another at slanted side planes thereof by means of a connecting rod interposed with a resilient member, each unit being connected rotatably for an angle of 360.degree. so |
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