1
Ryusuke Hasegawa, Chong Ping Chou: Metallic glasses having a combination of high permeability, low magnetostriction, low ac core loss and high thermal stability. Allied Chemical Corporation, Ernest D Buff, Gerhard H Fuchs, May 1, 1979: US04152144 (44 worldwide citation)

Metallic glasses having high permeability, low magnetostriction, low ac core loss and high thermal stability are disclosed. In contrast to the prior art in which one, or at most two, of these properties are attained in one metallic glass, all those outstanding properties are achieved in a single met ...


2
Philip M Anderson III, Ryusuke Hasegawa, Robert M VonHoene: Amorphous antipilferage marker. Allied Corporation, Ernest D Buff, Gerhard H Fuchs, November 12, 1985: US04553136 (29 worldwide citation)

A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, du ...


3
Ryusuke Hasegawa: Metallic glass alloys for mechanically resonant marker surveillance systems. AlliedSignal, Ernest D Buff, May 13, 1997: US05628840 (28 worldwide citation)

A glassy metal alloy consists essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f C.sub.g, where "M" is at least one member selected from the group consisting of molybdenum, chromium and manganese, "a-g" are in atom percent, "a" ranges from about 30 to about 45, "b" ranges ...


4
Ryusuke Hasegawa: Glassy metal alloy temperature sensing elements for resistance thermometers. Allied Chemical Corporation, David W Collins, Ernest A Polin, December 27, 1977: US04064757 (27 worldwide citation)

Glassy metal alloys of compositions in the Be-Ti-Zr system suitable as temperature sensing elements for resistance thermometers are provided. The compositions consist essentially of about 20 to 45 atom percent beryllium, about 2 to 80 atom percent zirconium, 0 to about 2 atom percent of at least one ...


5
Ryusuke Hasegawa: Glassy superconducting metal alloys in the beryllium-niobium-zirconium system. Allied Chemical Corporation, David W Collins, Gerhard H Fuchs, September 26, 1978: US04116687 (24 worldwide citation)

Ductile metal alloys of compositions in the Be-Nb-Zr system are provided. The compositions consist essentially of about 20 to 45 atom percent beryllium, about 2.5 to 20 atom percent niobium and the balance essentially zirconium and incidental impurities. The alloys of the invention, which are suitab ...


6
Ryusuke Hasegawa, John Silgailis, Donald Grimes: Magnetic core-coil assembly for spark ignition systems. AlliedSignal, Ernest D Buff, February 9, 1999: US05868123 (22 worldwide citation)

A magnetic core-coil assembly generates an ignition event in a spark ignition internal combustion system having at least one combustion chamber. The assembly comprises a magnetic core of amorphous metal having a primary coil for low voltage excitation and a secondary coil for a high voltage output t ...


7
Hitoshi Yoshimori, Ryusuke Hasegawa: Inductor core-coil assembly and manufacturing thereof. Honeywell International, Roger H Criss, January 28, 2003: US06512438 (20 worldwide citation)

Disclosed are a gapped magnetic core which may be coated or uncoated with an insulating layer or housed in an insulting box having a physical gap whose dimension is close to that of the gapped magnetic core and automated or semi-automated methods of applying copper wire on the gapped core or the cor ...


8
Ryusuke Hasegawa, Ronald Martis: Metallic glass alloys for mechanically resonant marker surveillance systems. Ernest D Buff, Roger H Criss, July 22, 1997: US05650023 (18 worldwide citation)

A glassy metal alloy consists essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.c Si.sub.f C.sub.g, where "M" is at least one member selected from the group consisting of molybdenum, chromium and manganese, "a-g" are in atom percent, "a" ranges from about 30 to about 45, "b" ranges ...


9
Nicholas J Decristofaro, Gordon E Fish, Ryusuke Hasegawa, Carl E Kroger, Scott M Lindquist, Seshu V Tatikola: Bulk laminated amorphous metal inductive device. Metglas, March 29, 2005: US06873239 (17 worldwide citation)

A bulk amorphous metal inductive device comprises a magnetic core having at least one low-loss bulk ferromagnetic amorphous metal magnetic component forming a magnetic circuit having an air gap therein. The component comprises a plurality of similarly shaped layers of amorphous metal strips bonded t ...


10
Ryusuke Hasegawa: Magnetic implements from glassy alloys. Allied Corporation, Ernest D Buff, Gerhard H Fuchs, May 31, 1983: US04385944 (17 worldwide citation)

A method for making magnetic crystallized implements based on glassy metal alloys. Metallic glass alloy powder of suitable ferromagnetic composition is compacted by mechanical, by adhesive bonding or by thermomechanical processes. The resulting compacts can be heat treated to enhance magnetic proper ...