Location History:
- Akashi, JP (2003 - 2006)
- Ozu, JP (2006 - 2007)
- Ehime-ken, JP (2009 - 2010)
- Ehime, JP (2010 - 2011)
Company Filing History:
10 out of 27,375 
5 out of 16,453 
Years Active: 2003-2011
Title: Keigo Kusaka: Innovator in Hydrodynamic Bearing Technology
Introduction
Keigo Kusaka is a prominent inventor based in Ozu, Japan. He has made significant contributions to the field of hydrodynamic bearing technology, holding a total of 15 patents. His innovative designs have advanced the functionality and efficiency of various devices, particularly in the realm of information technology.
Latest Patents
Among his latest patents are the hydrodynamic bearing device and the spindle motor and information apparatus equipped with the same. The hydrodynamic bearing device features a first gap formed between a shaft and a sleeve, and a second gap between a sleeve cap and the sleeve, which holds a lubricant. A thrust bearing member is positioned near the inner peripheral surface of a center hole of the sleeve cap, creating a third gap that is open to the atmosphere. This design allows for the circulation of lubricant along a passage that includes the first and second gaps. The spindle motor and information apparatus utilize a rotary shaft with a hub, which is rotatable within a sleeve bearing. The thrust hydrodynamic grooves on the rotary shaft's end surface form a thrust bearing with a thrust plate, significantly reducing rotation friction.
Career Highlights
Keigo Kusaka has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the field of electronics and information systems.
Collaborations
Some of his notable coworkers include Takafumi Asada and Hiroaki Saito. Their collaborative efforts have further enhanced the development of innovative technologies in their respective fields.
Conclusion
Keigo Kusaka's contributions to hydrodynamic bearing technology exemplify his dedication to innovation and excellence. His patents reflect a deep understanding of mechanical engineering and a commitment to improving device performance. His work continues to influence the industry and inspire future inventors.