Nippon Piston Ring Co Ltd
Nippon PisActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| JPS58206331A | Automatic piston ring inserting apparatus | Expired / Lapsed | 1982-05-28 | — | 0 | Details |
| JPS58181525A | Automatic inserter for piston ring | Expired / Lapsed | 1982-04-14 | — | 0 | Details |
| US5272930B1 | Mechanical element having a shaft pressure-fitted into an e… | Expired / Lapsed | 1992-06-05 | 1997-09-23 | 0 | Details |
| US5598631A | Method of making machine element with at least a fitting me… | Expired / Lapsed | 1995-03-03 | 1997-02-04 | 14 | Details |
| US5272930A | Mechanical element having a shaft pressure-fitted into an e… | Expired / Lapsed | 1992-06-05 | 1993-12-28 | 18 | Details |
| US4969262A | Method of making camshaft | Expired / Lapsed | 1990-03-20 | 1990-11-13 | 5 | Details |
| US4730581A | Hollow cam shaft | Expired / Lapsed | 1986-06-04 | 1988-03-15 | 6 | Details |
| US4632074A | Wear-resistant member for use in internal combustion engine… | Expired / Lapsed | 1985-09-30 | 1986-12-30 | 26 | Details |
| US3911952A | Mechanism for controlled air delivery to an air operated ro… | Expired / Lapsed | 1974-06-03 | 1975-10-14 | 7 | Details |
| US3598147A | Mechanisms for feeding air into a rotary member | Expired / Lapsed | 1970-02-24 | 1971-08-10 | 9 | Details |
| US3530772A | Cylinder or cylinder liner and method for producing the same | Expired / Lapsed | 1968-02-15 | 1970-09-29 | 0 | Details |