This inventor holds 4 USPTO granted patents. Top assignees: Pioneer Electronic Corporation, Pioneer Electric Corporation. Active years: 1977-1985.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Titama, JA (1977)
- Tokorozawa, JP (1982)
- Saitama, JP (1984 - 1985)
Company Filing History:
3 out of 2,861 
1 out of 66 Years Active: 1977-1985
Title: Kazuo Nishikawa: Innovator in Phono Pickup Cartridge Technology
Introduction
Kazuo Nishikawa is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of audio technology, particularly in the design and development of phono pickup cartridges. With a total of 4 patents to his name, Nishikawa's work has had a lasting impact on the audio industry.
Latest Patents
Nishikawa's latest patents include innovative designs for moving-coil type phono pickup cartridges. One of his patents describes a cartridge in which undesirable resonances are eliminated, ensuring that the vibrating unit remains aligned with a predetermined center position of a magnet unit. This design features a first non-magnetic body with a mount portion and a support portion that extends perpendicularly. The support portion includes a longitudinal hole intersected by a slit, allowing for precise adjustments of the vibrating unit's position.
Another patent focuses on a moving coil type phono pickup cartridge that allows for very accurate positioning of the stylus unit in three dimensions relative to the cartridge body. This design ensures that the moving coil unit in the stylus unit is closely aligned with the corresponding magnetic unit in the cartridge body. The stylus unit is equipped with resilient plates that engage with polished positioning surfaces on the cartridge body, enhancing the overall performance of the cartridge.
Career Highlights
Throughout his career, Kazuo Nishikawa has worked with prominent companies in the audio industry, including Pioneer Electronic Corporation and Pioneer Electric Corporation. His experience in these organizations has contributed to his expertise in audio technology and innovation.
Collaborations
Nishikawa has collaborated with notable individuals in the field, including Keniti Okura and Hiroyuki Ichino. These collaborations have further enriched his work and contributed to advancements in phono pickup cartridge technology.
Conclusion
Kazuo Nishikawa's contributions to the audio industry, particularly through his innovative phono pickup cartridge designs, have established him as a significant figure in the field. His patents reflect a commitment to enhancing audio quality and performance, making a lasting impact on the technology used in music playback.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile