Company Filing History:
6 out of 28,584 
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2 out of 4 Years Active: 1995-2013
Title: **Haruki Tokumaru: Innovator in Optical Disk Technology**
Introduction
Haruki Tokumaru, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of optical disk technology. With a total of seven patents to his name, he has developed innovative mechanisms that enhance the performance and efficiency of disk systems.
Latest Patents
Tokumaru's latest inventions include a variety of sophisticated devices such as the disk laminate, disk cartridge, disk loading/unloading mechanism, disk conveying device, disk conveying mechanism, and thin disk driving system. One of his highlighted inventions, the disk laminate, incorporates thin disks that are laminated together, featuring spacers between the disks to prevent direct contact, while still allowing for air permeability. Additionally, he introduced a disk clamping mechanism that includes a turntable fixed on a spindle motor rotational shaft, alongside a stabilizer that suppresses run-out by applying aerodynamic forces to maintain stability. The clamper, movably supported at the center of the stabilizer, securely sandwiches the flexible thin optical disk between itself and the turntable, facilitating efficient rotation.
Career Highlights
Throughout his career, Haruki Tokumaru has worked with notable companies, including Ricoh Company, Ltd. and Nippon Hoso Kyokai. His experiences at these firms have provided him with the essential skills and insights necessary for his advancements in optical innovation.
Collaborations
Tokumaru has collaborated with fellow innovators such as Nobuaki Onagi and Daiichi Koide. These partnerships have led to the exchange of ideas and the development of exciting new technologies within the realm of disk systems.
Conclusion
Haruki Tokumaru's inventive spirit and dedication to advancing optical disk technology reflect his passion for innovation. With his numerous patents and collaborative efforts, he continues to play a pivotal role in shaping the future of data storage solutions.