Introduction: Kuniyasu Iwazaki, an accomplished inventor based in Kyoto, Japan, has made significant contributions to the field of spindle motor technology. With a total of five patents to his name, Iwazaki's innovations focus on improving the efficiency and functionality of spindle motors.

Latest Patents: Iwazaki's latest patents demonstrate his expertise in creating advanced spindle motors. One notable invention is a spindle motor that features a housing, a hub member rotatable relative to the housing, and a bearing means disposed between the housing and the hub member. This design includes a rotor magnet mounted on the hub member, alongside a stator positioned in a facing relationship with the rotor magnet. A key highlight in this patent is the incorporation of a supporting wall portion on the hub member that works in tandem with the stator to create an effective air seal structure. Additionally, a magnetic fluid seal means is strategically placed outward of the bearing means, comprising a conductive plate that grounds static electricity, while the bearing means utilizes an improved radial ball bearing design.

Another important patent from Iwazaki involves a spindle motor with a stator core that is supported by a resin member. This innovative design maintains the same essential components, such as a housing, a rotatable hub member, and a bearing between the two. Similar to the previous patent, this design also features the critical air seal structure between the supporting wall portion and the stator. The magnetic fluid seal with a conductive plate for grounding static electricity is consistent across both patents, showcasing Iwazaki's attention to detail and functional design improvements.

Career Highlights: Kuniyasu Iwazaki has established a robust career at Nippon Densan Corporation, where he has honed his skills in electrical engineering and product development. His deep understanding of spindle motor mechanics has led to numerous advancements in the technology, benefiting various applications in the industry.

Collaborations: Throughout his career, Iwazaki has collaborated with other talented engineers, including Kihachiro Ohta and Noriaki Hishida. These collaborations have played a crucial role in fostering innovation and driving advancements in the company's spindle motor projects.

Conclusion: Kuniyasu Iwazaki stands out as a dedicated inventor with a strong focus on refining spindle motor technologies. His five patents encapsulate a commitment to innovation and improvement, establishing him as a key figure within Nippon Densan Corporation and the broader engineering community. His advancements continue to resonate within the industry, paving the way for future developments in motor technology.

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