Location History:
- Ibaraki, JP (1996)
- Chiyoda-machi, JP (1998)
- Ibaraki-ken, JP (2001 - 2003)
Company Filing History:
4 out of 42,508 
1 out of 149 Years Active: 1996-2003
Title: **Innovative Contributions of Yoshihiro Sato**
Introduction
Yoshihiro Sato, an accomplished inventor based in Ibaraki-ken, Japan, has made significant contributions to the field of disk drive technology. With a total of four patents to his name, Sato's innovations focus on improving the performance and stability of disk storage devices, addressing issues that arise from high-speed rotation.
Latest Patents
One of Sato's latest patents is a **disk drive device** designed to mitigate the problems caused by rotational vibrations due to weight imbalances in disks. This invention features an unbalance correcting mechanism with correcting balls that stabilize the device during operation. It includes an annular-shaped groove on a turntable and a sliding resistance member to reduce friction, thereby enhancing performance during low-speed rotations.
Another notable patent is a **disc device having disc balance correcting arrangements**. This device incorporates a rotary drive mechanism that corrects imbalances within the rotary body. It employs a holding system with a natural frequency optimized between 30 Hz and 70 Hz and ensures improved transmission characteristics, thereby enhancing the device's reliability and user experience.
Career Highlights
Throughout his career, Yoshihiro Sato has contributed to well-known companies such as Hitachi, Ltd. and Hitachi Powdered Metals Co., Ltd. His work in these firms has played a crucial role in advancing technology related to disk drives and storage solutions.
Collaborations
Sato has also collaborated with prominent colleagues including Takashi Kouno and Yoshiaki Yamauchi. Their combined expertise has fostered innovative developments in the industry, pushing the boundaries of current technology.
Conclusion
Yoshihiro Sato's inventive spirit and contributions to disk drive technology demonstrate the impact that dedicated inventors can have on advancing modern technology. His patents not only address existing challenges but also pave the way for future innovations in the field. As the industry evolves, Sato's work will undoubtedly remain influential in shaping the standards of disk storage devices.