Company Filing History:
Years Active: 1979-1987
Title: Hisayoshi Nakatsuka: Innovator in Electromagnetic Pickup Technology
Introduction
Hisayoshi Nakatsuka is a notable inventor based in Mitaka, Japan. He has made significant contributions to the field of electromagnetic pickups, holding a total of six patents. His work has advanced the technology used in audio equipment, particularly in the design and functionality of pickup cartridges.
Latest Patents
His latest patents include innovative designs that enhance the performance of electromagnetic pickups. One of his patents is for a circuit connection for coils wound on the yoke of an electromagnetic pickup. This invention features a cartridge with a pair of output terminals and a yoke that includes a pair of arms, each with generator coils. The design allows for efficient connection of start and end terminals, optimizing the functionality of the pickup.
Another significant patent is for a grounding circuit for a pickup cartridge of the moving coil type. This invention improves the grounding of the magnetic circuit at a point that is substantially removed from the armature. This enhancement ensures better performance and reliability in audio applications.
Career Highlights
Hisayoshi Nakatsuka is currently associated with Namiki Precision Jewel Co., Ltd., where he continues to innovate in the field of precision engineering and audio technology. His expertise and inventions have positioned him as a key figure in the development of advanced pickup systems.
Conclusion
Hisayoshi Nakatsuka's contributions to electromagnetic pickup technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of audio engineering, making him a significant inventor in this specialized field.