Japan Patent JP2936858B2: Flying Object Propulsion Device — Meissner-Effect Asymmetric Directional Force (NEC Corporation / Yoshinari Minami)

Patent Number: JP2936858B2 Title: Flying Object Propulsion Device (飛翔体推進装置) Inventor: 善成 南 (Yoshinari Minami) Assignee: NEC Corp (Nippon Electric Co Ltd) Filed: December 24, 1991; Published JPH05172040A July 9, 1993; Granted August 23, 1999 Status: Expired - Lifetime (expiration 2014-08-23) Worldwide applications: JP 1991, GB 1992 Classification: F03H99/00 — Subject matter not provided for in other groups Jurisdiction: Japan (foreign) Track Directory (Physics_Math): Track_3/ — Meissner-effect flux expulsion creating directional force via asymmetric field geometry; NEC defense electronics superconducting propulsion; directly relevant to Attempt 3 Podkletnov-analog rotating field and gravitomagnetic research

Image files:

• patents_intl/tweets/raw_download/2046171667815125122_1.png (patent figures 11, 12, 13)
• patents_intl/tweets/raw_download/2046171667815125122_2.jpg

Patent Figures

Figure 11: Top-down view of a spherical object (component 33) showing concentric electromagnetic field rings radiating outward — the classic dipole field pattern of a magnetically charged sphere, consistent with a superconducting sphere in the Meissner state expelling magnetic flux into its surroundings.

Figure 12: Internal cross-section of a disc/saucer-shaped craft (outer shell labeled 45). Two bar magnet assemblies (41 and 43) are positioned at the center of the disc, with pole pairs S-N and N-S respectively, and field lines B1 and B2 labeled. The magnets are horizontal, with their combined field lines creating a complex multipole pattern that extends to the shell wall.

Figure 13: Side view of component 33 with field lines deflected on one side by a parallel plate arrangement — the Meissner effect: a superconductor expels flux on the side facing the external magnet, forcing field lines to curve away from the superconductor surface. By positioning the superconductor asymmetrically relative to the field source, the net force on the superconductor has a directional component — propulsion.

Physics Mechanism: Meissner-Effect Asymmetric Force

The physical principle is asymmetric Meissner-effect interaction between the superconducting craft and its internal or external magnetic field sources. In the standard Meissner configuration, a superconductor symmetrically placed above a magnetic source experiences a net upward (levitation) force with no horizontal component. The Minami innovation is asymmetric placement or asymmetric field geometry: when the superconductor is displaced laterally from the field center, or when an asymmetric internal field is applied (as in Figure 12 with the two-magnet assembly creating a complex multipole), the flux expulsion is stronger on one side than the other, producing a net horizontal force component.

The force balance for Meissner levitation in the London model: a superconducting sphere of radius R in an external field B_ext develops surface screening currents that perfectly cancel the external field in the interior. The magnetic pressure on the surface is:

P_mag = B_surface²/(2μ₀)

where B_surface is the field at the superconductor surface (enhanced by the Meissner effect over the external field value). For a sphere, the surface field varies as:

B_surface(θ) = (3/2)B_ext sin(θ)

producing a net vertical force but zero horizontal force by symmetry. Breaking this symmetry — by tilting the external field, using a multipole configuration as in Figure 12, or by applying the asymmetric geometry of Figure 13 — produces a net horizontal force proportional to the asymmetry in the surface field integral.

NEC Corporation: Defense Electronics Significance

The significance of the NEC Corporation assignee cannot be overstated. NEC is one of Japan's largest defense electronics contractors, supplier of command-and-control systems, radar, and satellite communications to the Japan Self-Defense Forces. A patent on superconducting Meissner-effect propulsion for flying objects, filed by NEC in 1991 (the peak of Japan's high-temperature superconductor research boom following the 1987 discovery of YBCO superconductors by Bednorz and Müller), indicates NEC was treating this as a potentially commercially or militarily realizable technology, not speculative research. The GB 1992 international filing further indicates international IP protection intent.

Minami's Subsequent Research Program

Inventor Yoshinari Minami subsequently became known for publications on "space drive propulsion" and gravitational modification through curved spacetime engineering, published through NEC and later independently. The JP2936858B2 patent appears to be the earliest formalized record of his superconducting propulsion research.

His subsequent theoretical framework extends beyond Meissner-effect force to full metric engineering — using electromagnetic field configurations to locally modify the spacetime metric tensor g_μν, effectively creating a curved spacetime bubble within which the craft moves along a geodesic. This connects the Minami research program to the broader class of spacetime engineering proposals (Alcubierre, Oboukhov-Hehl, etc.) that appear to be the theoretical direction of classified physics programs.

Sources

• JP2936858B2 on Google Patents
• GB filing (1992) — UK equivalent application
• Bednorz, J.G. and Müller, K.A. (1987) — YBCO high-temperature superconductor discovery, Nobel Prize 1987
• Minami, Y. — subsequent publications on space drive propulsion (NEC and independent)

This information was compiled from Break_thrus.mdx staging file.