| Patent Number |
Title Of Patent |
Date Issued |
| 4958956 |
Submerged flexible wave restraining structure and a method of constructing it |
September 25, 1990 |
| A resilient wave reducing structure which reduces waves propagating on liquid surface from propagating over the reducing structure and a method of constructing the wave reducing structure. The wave reducing structure of the present invention may be used to form a calm water surface regio |
| 4851292 |
Plate-like barium ferrite particles suitable for use in magnetic recording and process for produ |
July 25, 1989 |
| Disclosed herein are plate-like barium ferrite particles with a solid solution of zinc on the surface thereof, which have an average particle diameter of not less than 0.03 .mu.m and less than 0.1 .mu.m, a BET specific surface are of 55 to 80 m.sup.2 /g, a coercive force of 300 to 1, |
| 4806429 |
Plate-like barium ferrite particles suitable for use in magnetic recording and process for produ |
February 21, 1989 |
| Disclosed herein are plate-like barium ferrite particles with a solid solution of zinc on the surface thereof, which have an average particle diameter of 0.05 to 0.3 .mu.m, a coercive force of 300 to 1,500 Oe and a magnetization of not less than 55 emu/g in magnetic field of 10 KOe, and |
| 4781981 |
Plate-like magnetoplumbite ferrite particles for magnetic recording and process for producing th |
November 1, 1988 |
| Disclosed herein are Ba-containing plate-like magnetoplumbite type ferrite particles for magnetic recording containing ions of one metal (II) selected from Ni and Zn and ions of one metal (IV) selected from Ti, Sn and Zr, and having zinc incorporated as a solid solution close to the |
