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Company Filing History:
20 out of 47 
15 out of 3,002 
6 out of 756 
Years Active: 1977-2015
Title: Ryusuke Hasegawa: Innovator in Electrical Engineering
Introduction
Ryusuke Hasegawa, located in Morristown, NJ, is a prolific inventor known for his significant contributions to electrical engineering. With a remarkable portfolio of 59 patents, he has made impactful advancements in the design and construction of low-loss electrical machines.
Latest Patents
Hasegawa's latest patents include a method of constructing a core with tapered pole pieces and a low-loss electrical rotating machine utilizing this core. His innovative design incorporates a stator or rotor that features a core composed of several tapered pole pieces, leading to improvements in output power, torque, and efficiency compared to machines without such features. This technology is applicable in various sectors, including automotive powertrains, power tools, and home appliances. The construction of the core involves winding an iron-based amorphous magnetic alloy ribbon into a cylinder, followed by heat treatment, resin impregnation, and precise machining. The resulting cores, with diameters ranging from 50 mm to 1200 mm, and adjustable tapered angles, provide significant performance advantages.
Another recent patent pertains to a ferromagnetic amorphous alloy ribbon, characterized by a specific composition of iron, silicon, boron, and carbon. This ribbon exhibits exceptional magnetic properties, making it suitable for use in transformer cores, rotational machines, electrical chokes, magnetic sensors, and pulse power devices.
Career Highlights
Throughout his career, Hasegawa has worked with notable companies, including Metglas, Inc. and AlliedSignal Inc., where he developed and advanced various innovative electrical solutions. His work has laid the groundwork for enhanced functionalities in electrical machines and components.
Collaborations
Hasegawa has collaborated with esteemed colleagues, such as Ronald Joseph Martis and Gordon Edward Fish. Their teamwork has fostered an environment of shared innovation, resulting in patents that push the boundaries of electrical engineering.
Conclusion
Ryusuke Hasegawa stands out as a significant figure in the realm of electrical innovations. His groundbreaking patents and collaborative efforts continue to shape the future of electrical machinery and materials, highlighting his role as a leader in technological advancement.
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